chore: release v1.1.6

* feat(settings): improve cookie profile handling

* fix(settings): normalize profile input

.github/ISSUE_TEMPLATE/bug_report.yml

@@ -0,0 +1,37 @@
+name: Bug Report
+description: Report a problem or regression
+title: "[Bug]: "
+labels:
+  - bug
+body:
+  - type: input
+    id: app_version
+    attributes:
+      label: App version
+      description: The VidBee version (e.g., 1.2.3)
+      placeholder: 1.2.3
+    validations:
+      required: true
+  - type: input
+    id: os_version
+    attributes:
+      label: OS version
+      description: Your operating system and version (e.g., macOS 14.2, Windows 11 23H2)
+      placeholder: macOS 14.2
+    validations:
+      required: true
+  - type: textarea
+    id: actual
+    attributes:
+      label: Observed behavior
+      placeholder: What actually happened
+    validations:
+      required: true
+  - type: textarea
+    id: logs
+    attributes:
+      label: Logs or screenshots
+      description: Paste relevant logs or add screenshots
+      placeholder: Attach files or paste logs here
+    validations:
+      required: false

.github/ISSUE_TEMPLATE/feature_request.yml

@@ -0,0 +1,38 @@
+name: Feature Request
+description: Suggest an idea or improvement
+title: "[Feature]: "
+labels:
+  - enhancement
+body:
+  - type: textarea
+    id: problem
+    attributes:
+      label: Problem to solve
+      description: What problem are you trying to solve?
+      placeholder: I want to...
+    validations:
+      required: true
+  - type: textarea
+    id: proposal
+    attributes:
+      label: Proposed solution
+      description: Describe the feature or change you want
+      placeholder: It would be great if...
+    validations:
+      required: true
+  - type: textarea
+    id: alternatives
+    attributes:
+      label: Alternatives considered
+      description: Other solutions or workarounds you considered
+      placeholder: I tried...
+    validations:
+      required: false
+  - type: textarea
+    id: extra
+    attributes:
+      label: Additional context
+      description: Add any other context or screenshots
+      placeholder: Links, screenshots, or related issues
+    validations:
+      required: false

.github/workflows/build.yml

@@ -0,0 +1,136 @@
+name: Build
+
+on:
+  workflow_call:
+    inputs:
+      upload_artifacts:
+        required: false
+        type: boolean
+        default: false
+        description: 'Whether to upload build artifacts'
+
+jobs:
+  build:
+    runs-on: ${{ matrix.os }}
+    strategy:
+      matrix:
+        include:
+          - platform: windows
+            os: windows-latest
+            build_script: pnpm run build:win
+            ytdlp_asset: yt-dlp.exe
+            ytdlp_output: yt-dlp.exe
+            ffmpeg_url: https://github.com/yt-dlp/FFmpeg-Builds/releases/latest/download/ffmpeg-master-latest-win64-gpl.zip
+            ffmpeg_inner_path: ffmpeg-master-latest-win64-gpl\bin\ffmpeg.exe
+            ffmpeg_output: ffmpeg.exe
+          - platform: macos
+            os: macos-latest
+            build_script: pnpm run build:mac
+            ytdlp_asset: yt-dlp_macos
+            ytdlp_output: yt-dlp_macos
+            ffmpeg_arm_url: https://github.com/eko5624/mpv-mac/releases/download/2025-10-25/ffmpeg-arm64-defd5f3f64.zip
+            ffmpeg_x86_url: https://github.com/eko5624/mpv-mac/releases/download/2025-10-25/ffmpeg-x86_64-defd5f3f64.zip
+            ffmpeg_inner_path: ffmpeg/ffmpeg
+            ffmpeg_output: ffmpeg_macos
+          - platform: linux
+            os: ubuntu-latest
+            build_script: pnpm run build:linux
+            ytdlp_asset: yt-dlp
+            ytdlp_output: yt-dlp_linux
+            ffmpeg_url: https://github.com/yt-dlp/FFmpeg-Builds/releases/latest/download/ffmpeg-master-latest-linux64-gpl.tar.xz
+            ffmpeg_inner_path: ffmpeg-master-latest-linux64-gpl/bin/ffmpeg
+            ffmpeg_output: ffmpeg_linux
+    steps:
+      - name: Check out Git repository
+        uses: actions/checkout@v4
+
+      - name: Install Node.js
+        uses: actions/setup-node@v4
+        with:
+          node-version: 20
+
+      - name: Install pnpm
+        uses: pnpm/action-setup@v4
+        with:
+          version: 8
+
+      - name: Install Dependencies
+        run: pnpm install
+
+      - name: Download ffmpeg binary (Windows)
+        if: matrix.platform == 'windows'
+        shell: pwsh
+        run: |
+          $ErrorActionPreference = 'Stop'
+          $ffmpegUrl = '${{ matrix.ffmpeg_url }}'
+          Invoke-WebRequest -Uri $ffmpegUrl -OutFile ffmpeg.zip
+          Expand-Archive ffmpeg.zip -DestinationPath ffmpeg -Force
+          $source = Join-Path 'ffmpeg' '${{ matrix.ffmpeg_inner_path }}'
+          $destination = Join-Path 'resources' '${{ matrix.ffmpeg_output }}'
+          Copy-Item -Path $source -Destination $destination -Force
+
+      - name: Download ffmpeg binary (macOS)
+        if: matrix.platform == 'macos'
+        shell: bash
+        env:
+          FFMPEG_OUTPUT: ${{ matrix.ffmpeg_output }}
+        run: |
+          set -euo pipefail
+          curl -fL --retry 3 --retry-delay 2 --retry-connrefused "${{ matrix.ffmpeg_arm_url }}" -o ffmpeg-arm.zip
+          unzip -q ffmpeg-arm.zip -d ffmpeg-arm
+
+          curl -fL --retry 3 --retry-delay 2 --retry-connrefused "${{ matrix.ffmpeg_x86_url }}" -o ffmpeg-x86.zip
+          unzip -q ffmpeg-x86.zip -d ffmpeg-x86
+
+          arm_bin="ffmpeg-arm/${{ matrix.ffmpeg_inner_path }}"
+          x86_bin="ffmpeg-x86/${{ matrix.ffmpeg_inner_path }}"
+
+          if [[ ! -f "$arm_bin" ]]; then
+            echo "::error::Missing arm64 ffmpeg binary at $arm_bin"
+            exit 1
+          fi
+          if [[ ! -f "$x86_bin" ]]; then
+            echo "::error::Missing x86_64 ffmpeg binary at $x86_bin"
+            exit 1
+          fi
+
+          lipo -create "$arm_bin" "$x86_bin" -output "resources/$FFMPEG_OUTPUT"
+          chmod +x "resources/$FFMPEG_OUTPUT"
+          rm -rf ffmpeg-arm ffmpeg-x86 ffmpeg-arm.zip ffmpeg-x86.zip
+
+      - name: Download ffmpeg binary (Linux)
+        if: matrix.platform == 'linux'
+        shell: bash
+        run: |
+          set -euo pipefail
+          curl -fL --retry 3 --retry-delay 2 --retry-connrefused "${{ matrix.ffmpeg_url }}" -o ffmpeg.tar.xz
+          if ! tar -tf ffmpeg.tar.xz >/dev/null 2>&1; then
+            echo "::error::Downloaded ffmpeg archive is not a valid tar.xz"
+            exit 1
+          fi
+          mkdir ffmpeg
+          tar -xf ffmpeg.tar.xz -C ffmpeg
+          cp "ffmpeg/${{ matrix.ffmpeg_inner_path }}" "resources/${{ matrix.ffmpeg_output }}"
+          chmod +x "resources/${{ matrix.ffmpeg_output }}"
+
+      - name: Download yt-dlp binary
+        shell: bash
+        run: |
+          curl -fL --retry 3 --retry-delay 2 --retry-connrefused "https://github.com/yt-dlp/yt-dlp/releases/latest/download/${{ matrix.ytdlp_asset }}" -o "resources/${{ matrix.ytdlp_output }}"
+          if [[ "${{ matrix.platform }}" == "linux" ]] || [[ "${{ matrix.platform }}" == "macos" ]]; then
+            chmod +x "resources/${{ matrix.ytdlp_output }}"
+          fi
+
+      - name: Lint and format check
+        run: pnpm run check && pnpm run typecheck
+
+      - name: Build application
+        run: ${{ matrix.build_script }}
+
+      - name: Upload build artifacts
+        if: inputs.upload_artifacts == true
+        uses: actions/upload-artifact@v4
+        with:
+          name: dist-${{ matrix.os }}
+          path: dist/
+          retention-days: 1

.github/workflows/ci.yml

@@ -1,37 +1,9 @@
 name: CI
 
 on:
-  push:
-    branches: [ main, develop ]
   pull_request:
-    branches: [ main, develop ]
+    branches: [ main ]
 
 jobs:
-  test:
-    runs-on: ubuntu-latest
-
-    steps:
-      - name: Check out Git repository
-        uses: actions/checkout@v4
-
-      - name: Install Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 8
-
-      - name: Install Dependencies
-        run: pnpm install
-
-      - name: Type check
-        run: pnpm run typecheck
-
-      - name: Lint and format check
-        run: pnpm run check
-
-      - name: Build check
-        run: pnpm run build
+  build:
+    uses: ./.github/workflows/build.yml

.github/workflows/release.yml

@@ -7,85 +7,38 @@ on:
 
 jobs:
   build:
-    runs-on: ${{ matrix.os }}
-
-    strategy:
-      matrix:
-        os: [ubuntu-latest, macos-latest, windows-latest]
-
-    steps:
-      - name: Check out Git repository
-        uses: actions/checkout@v4
-
-      - name: Install Node.js
-        uses: actions/setup-node@v4
-        with:
-          node-version: 20
-
-      - name: Install pnpm
-        uses: pnpm/action-setup@v4
-        with:
-          version: 8
-
-      - name: Install Dependencies
-        run: pnpm install
-
-      - name: Type check
-        run: pnpm run typecheck
-
-      - name: Lint and format check
-        run: pnpm run check
-
-      - name: Build Electron app
-        run: |
-          if [ "${{ matrix.os }}" == "ubuntu-latest" ]; then
-            pnpm run build:linux
-          elif [ "${{ matrix.os }}" == "macos-latest" ]; then
-            pnpm run build:mac
-          elif [ "${{ matrix.os }}" == "windows-latest" ]; then
-            pnpm run build:win
-          fi
-
-      - name: Upload artifacts
-        uses: actions/upload-artifact@v4
-        with:
-          name: dist-${{ matrix.os }}
-          path: dist/
+    uses: ./.github/workflows/build.yml
+    with:
+      upload_artifacts: true
 
   release:
-    needs: build
+    needs: [build]
     runs-on: ubuntu-latest
-    permissions:
-      contents: write
-
     steps:
       - name: Check out Git repository
         uses: actions/checkout@v4
 
-      - name: Download all artifacts
+      - name: Download artifacts
         uses: actions/download-artifact@v4
         with:
+          pattern: dist-*
+          merge-multiple: true
           path: dist/
 
-      - name: Create Release
-        uses: softprops/action-gh-release@v2
+      - name: Release
+        uses: softprops/action-gh-release@v1
         with:
-          draft: false
-          prerelease: false
           generate_release_notes: true
           files: |
-            dist-ubuntu-latest/*.AppImage
-            dist-ubuntu-latest/*.snap
-            dist-ubuntu-latest/*.deb
-            dist-ubuntu-latest/*.rpm
-            dist-ubuntu-latest/*.tar.gz
-            dist-ubuntu-latest/*.yml
-            dist-ubuntu-latest/*.blockmap
-            dist-macos-latest/*.dmg
-            dist-macos-latest/*.zip
-            dist-macos-latest/*.yml
-            dist-macos-latest/*.blockmap
-            dist-windows-latest/*.exe
-            dist-windows-latest/*.zip
-            dist-windows-latest/*.yml
-            dist-windows-latest/*.blockmap
+            dist/*.exe
+            dist/*.zip
+            dist/*.dmg
+            dist/*.AppImage
+            dist/*.snap
+            dist/*.deb
+            dist/*.rpm
+            dist/*.tar.gz
+            dist/*.yml
+            dist/*.blockmap
+        env:
+          GITHUB_TOKEN: ${{ secrets.ACCESS_TOKEN }}

.github/workflows/translator.yaml

@@ -0,0 +1,29 @@
+name: 'translator'
+on:
+  issues:
+    types: [opened, edited]
+  issue_comment:
+    types: [created, edited]
+  discussion:
+    types: [created, edited]
+  discussion_comment:
+    types: [created, edited]
+  pull_request_target:
+    types: [opened, edited]
+  pull_request_review_comment:
+    types: [created, edited]
+
+jobs:
+  translate:
+    permissions:
+      issues: write
+      discussions: write
+      pull-requests: write
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v3
+      - uses: lizheming/github-translate-action@c55aac477e98562d4faed9f77c54ab8306ae6ebf
+        env:
+          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
+        with:
+          IS_MODIFY_TITLE: true

.gitignore

@@ -1,7 +1,9 @@
 node_modules
-dist
+/dist
 out
+.conductor/
+.wxt
+.output
 .DS_Store
 .eslintcache
 *.log*
-

.vscode/settings.json

@@ -25,5 +25,8 @@
     ["cn\\(([^)]*)\\)", "(?:'|\"|`)([^']*)(?:'|\"|`)"]
   ],
   "i18n-ally.localesPaths": ["src/renderer/src/locales"],
-  "i18n-ally.keystyle": "nested"
+  "i18n-ally.keystyle": "nested",
+  "[css]": {
+    "editor.defaultFormatter": "biomejs.biome"
+  }
 }

AGENTS.md

@@ -3,3 +3,4 @@
 3. Support i18n, only translate the English version of en.json
 4. use English for comments&console
 5. Follow the ✅ KISS (Keep It Simple, Stupid) & ✅ YAGNI (You Aren't Gonna Need It) principles
+6. Use Conventional Commits format for commit messages: `type(scope): subject`. Common types: feat, fix, docs, style, refactor, test, chore, perf, ci, build, revert. PR titles should also follow this format.

CONTRIBUTING.md

@@ -0,0 +1,78 @@
+# Contributing to VidBee
+
+Thank you for taking the time to improve VidBee. These notes keep the project maintainable and easy to review.
+
+## Getting Ready
+- Use Node.js 18+ and pnpm 8+.
+- Install dependencies with `pnpm install`.
+- Run `pnpm dev` to test changes locally.
+
+## Tech Stack
+- Runtime: Electron 38, electron-vite, electron-builder.
+- Frontend: React 19, React Router, Jotai, React Hook Form, Tailwind CSS 4, shadcn/ui, Lucide icons.
+- Tooling: TypeScript 5, pnpm, Biome, dayjs, electron-log, electron-store, electron-updater, i18next, next-themes.
+
+## Local Development
+- Use `pnpm install` to pull dependencies after cloning.
+- Start the Electron and Vite development environment with `pnpm dev`; hot module replacement is already configured.
+- Preview the production build locally with `pnpm start`.
+
+## Useful Scripts
+
+| Command | Purpose |
+| --- | --- |
+| `pnpm run typecheck` | Type-check the main and renderer projects. |
+| `pnpm build` | Run type checks and produce production bundles. |
+| `pnpm build:win` / `pnpm build:mac` / `pnpm build:linux` | Create platform-specific distributables. |
+| `pnpm build:unpack` | Produce unpacked output directories for inspection. |
+| `pnpm run check` | Format and lint the codebase with Biome. |
+
+## Project Structure
+
+```text
+src/
+|-- main/            # Electron main process, IPC services, configuration
+|-- preload/         # Context bridge and preload helpers
+`-- renderer/
+    |-- src/
+    |   |-- pages/      # Application routes (Home, Settings, Playlist, etc.)
+    |   |-- components/ # UI components, download views, shared controls
+    |   |-- data/       # Static datasets such as popularSites.ts
+    |   |-- hooks/      # Custom hooks and global atoms
+    |   |-- lib/        # Utilities shared across the renderer
+    |   `-- assets/     # Global styles and icons
+    `-- index.html
+```
+
+## Internationalization
+- i18next drives localization with English (`en`) and Simplified Chinese (`zh-CN`) namespaces.
+- Only update strings in `src/renderer/src/locales/en.json`; maintainers handle the other locales.
+- Keep copy edits focused and avoid removing translation keys without discussion.
+
+## Configuration and Storage
+- Persistent settings are stored with `electron-store` and exposed through IPC helpers.
+- User-facing preferences such as download paths and themes live in `src/main/settings.ts` and related services.
+- Logs are recorded with `electron-log` to simplify troubleshooting.
+
+## Packaging
+- Build production bundles with `pnpm build`.
+- Create platform-specific artifacts with `pnpm build:win`, `pnpm build:mac`, or `pnpm build:linux`.
+- Use `pnpm build:unpack` to generate unpacked directories under `dist/` for manual inspection.
+- Bundle platform binaries of `yt-dlp` and `ffmpeg` under `resources/` (or set `YTDLP_PATH`/`FFMPEG_PATH`) before packaging so merges and audio extraction work out of the box.
+
+## Working on Changes
+- Keep each pull request focused on a single problem or feature.
+- Run `pnpm run check` before committing to ensure formatting and linting stay consistent.
+- Write comments and console messages in English only.
+- When updating copy in the app, adjust strings in `src/renderer/src/locales/en.json`; other locale files are handled by maintainers.
+
+## Opening Issues
+- Search existing issues to avoid duplicates.
+- Describe the problem clearly with steps to reproduce, expected behaviour, and screenshots or logs when useful.
+
+## Submitting Pull Requests
+- Explain the motivation and impact of the change in the description.
+- Mention any user facing updates or migrations.
+- Confirm that `pnpm run check` passes and note any follow-up work that is out of scope.
+
+We appreciate every contribution that keeps VidBee simple and reliable.

README.md

@@ -1,97 +1,141 @@
-# VidBee
-
 <div align="center">
-  <img src="build/icon.png" alt="VidBee icon" width="120" />
-  <h3>A minimal Electron downloader for video and audio</h3>
-  <p>Built with Electron, React, TypeScript, Tailwind CSS, and shadcn/ui.</p>
+  <a href="https://github.com/nexmoe/VidBee">
+    <img src="build/icon.png" alt="Logo" width="80" height="80">
+  </a>
+
+  <h3>VidBee</h3>
+  <p>
+    <a href="https://github.com/nexmoe/VidBee/stargazers"><img src="https://img.shields.io/github/stars/nexmoe/VidBee?color=ffcb47&labelColor=black&logo=github&label=Stars" /></a>
+    <a href="https://github.com/nexmoe/VidBee/graphs/contributors"><img src="https://img.shields.io/github/contributors/nexmoe/VidBee?ogo=github&label=Contributors&labelColor=black" /></a>
+    <a href="https://github.com/nexmoe/VidBee/releases"><img src="https://img.shields.io/github/downloads/nexmoe/VidBee/total?color=369eff&labelColor=black&logo=github&label=Downloads" /></a>
+    <a href="https://github.com/nexmoe/VidBee/releases/latest"><img src="https://img.shields.io/github/v/release/nexmoe/VidBee?color=369eff&labelColor=black&logo=github&label=Latest%20Release" /></a>
+    <a href="https://x.com/intent/follow?screen_name=nexmoex"><img src="https://img.shields.io/badge/Follow-blue?color=1d9bf0&logo=x&labelColor=black" /></a>
+    <a href="https://deepwiki.com/nexmoe/VidBee"><img src="https://deepwiki.com/badge.svg" alt="Ask DeepWiki"></a>
+    <br />
+    <br />
+    <a href="https://github.com/nexmoe/VidBee/releases/latest" target="_blank"><img src="screenshots/main-interface.png" alt="VidBee Desktop" width="46%"/></a>
+    <a href="https://github.com/nexmoe/VidBee/releases/latest" target="_blank"><img src="screenshots/download-queue.png" alt="VidBee Download Queue" width="46%"/></a>
+    <br />
+    <br />
+  </p>
 </div>
 
-## Features
-- Download single videos, audio-only tracks, or entire playlists through a unified flow.
-- Queue multiple jobs with progress tracking, pause, resume, retry, and download history.
-- Detect platform-friendly formats automatically and store files in custom locations.
-- Quick actions for popular sites plus manual URL entry for anything yt-dlp supports.
-- Theme toggle (system, light, dark) and localized interface in English and Simplified Chinese.
-- Desktop-native touches such as tray integration, update checks, and persistent settings.
+VidBee is a modern, open-source video downloader that lets you download videos and audios from 1000+ websites worldwide. Built with Electron and powered by yt-dlp, VidBee offers a clean, intuitive interface with powerful features for all your downloading needs, including RSS auto-download automation that automatically subscribes to feeds and downloads new videos from your favorite creators in the background.
 
-## Tech Stack
-- **Runtime:** Electron 38, electron-vite, electron-builder.
-- **Frontend:** React 19, React Router, Jotai, React Hook Form, Tailwind CSS 4, shadcn/ui, Lucide icons.
-- **Tooling:** TypeScript 5, pnpm, Biome, dayjs, electron-log, electron-store, electron-updater, i18next, next-themes.
+## 👋🏻 Getting Started
 
-## Getting Started
-### Prerequisites
-- Node.js 18 or newer
-- pnpm 8 or newer
+VidBee is currently under active development, and feedback is welcome for any [issue](https://github.com/nexmoe/VidBee/issues) encountered.
 
-### Install dependencies
-```bash
-pnpm install
-```
+Feel free to try it using the following methods:
 
-### Run the app in development
-```bash
-pnpm dev
-```
+<a href="https://vidbee.org/download/" target="_blank"><img src="https://img.shields.io/badge/Download-VidBee-369eff?style=flat-square&logo=github&logoColor=white&labelColor=black" height="55"/></a>
 
-The Electron app and Vite dev server launch together with hot module replacement.
+### 🍎 macOS Installation Notes
 
-## Useful Scripts
-| Command | Description |
-| --- | --- |
-| `pnpm dev` | Run the Electron and Vite development environment. |
-| `pnpm start` | Preview the production build locally. |
-| `pnpm run typecheck` | Type-check the main and renderer projects. |
-| `pnpm build` | Run type checks and produce production bundles. |
-| `pnpm build:win` / `pnpm build:mac` / `pnpm build:linux` | Create platform-specific distributables. |
-| `pnpm build:unpack` | Produce unpacked output directories. |
-| `pnpm run check` | Format and lint the codebase with Biome. |
-
-## Project Structure
-```
-src/
-├─ main/            # Electron main process, IPC services, configuration
-├─ preload/         # Context bridge and preload helpers
-└─ renderer/
-   ├─ src/
-   │  ├─ pages/      # Application routes (Home, Settings, Playlist, etc.)
-   │  ├─ components/ # UI components, download views, shared controls
-   │  ├─ data/       # Static datasets such as popularSites.ts
-   │  ├─ hooks/      # Custom hooks and global atoms
-   │  ├─ lib/        # Utilities shared across the renderer
-   │  └─ assets/     # Global styles and icons
-   └─ index.html
-```
-
-## Internationalization
-The renderer uses i18next with English (`en`) and Simplified Chinese (`zh-CN`) namespaces. Update strings in `src/renderer/src/locales/en.json`; other locales are maintained separately.
-
-## Configuration and Storage
-- Persistent settings are stored with `electron-store` and exposed through IPC helpers.
-- User-facing preferences such as download paths and themes live in `src/main/settings.ts` and related services.
-- Logs are recorded with `electron-log` to simplify troubleshooting.
-
-## Packaging
-Run one of the following commands after a successful build:
+After downloading and installing VidBee on macOS, you may encounter a "file is damaged" error when trying to run the application. This is due to macOS security restrictions on applications downloaded from the internet.
 
 ```bash
-pnpm build:win
-pnpm build:mac
-pnpm build:linux
+xattr -rd com.apple.quarantine /Applications/VidBee.app/
 ```
 
-Artifacts are generated under `dist/`. Use `pnpm build:unpack` to create unpacked directories for manual inspection.
+This command removes the quarantine attribute that macOS applies to applications downloaded from the internet, allowing VidBee to run properly without the "file is damaged" error.
 
-## Contributing
-Issues and pull requests are welcome. Keep changes focused, document user facing updates, and run `pnpm run check` before opening a PR.
+### 🌐 Browser Script (Quick Download)
 
-## License
-This project is distributed under the MIT License. See `LICENSE` for details.
+For a more convenient downloading experience, you can install the VidBee browser script to add a quick download button directly on supported video websites.
 
-## Thanks
-- [Electron](https://www.electronjs.org/)
-- [React](https://react.dev/)
-- [Vite](https://vitejs.dev/)
-- [Tailwind CSS](https://tailwindcss.com/)
-- [shadcn/ui](https://ui.shadcn.com/)
-- [yt-dlp](https://github.com/yt-dlp/yt-dlp)
+![VidBee Browser Script](screenshots/browser-script.png)
+
+**Installation:**
+
+1. Install a userscript manager extension:
+   - [Tampermonkey](https://www.tampermonkey.net/) (Recommended)
+   - [Violentmonkey](https://violentmonkey.github.io/)
+   - [Greasemonkey](https://www.greasespot.net/)
+
+2. Install the VidBee Quick Download script:
+   - [Install from Greasy Fork](https://greasyfork.org/zh-CN/scripts/559595-vidbee-quick-download)
+
+**Usage:**
+
+After installation, when you visit supported video websites (YouTube, Bilibili, TikTok, Instagram, Twitter, etc.), a download button will appear on the page. Click the button to quickly send the video URL to VidBee desktop app for downloading.
+
+**Supported Sites:**
+
+The script works on popular video platforms including:
+
+- YouTube, Bilibili, TikTok, Vimeo, Dailymotion
+- Twitch, Twitter/X, Instagram, Facebook
+- Reddit, SoundCloud, Niconico, Kick
+- Bandcamp, Mixcloud, and more
+
+> [!IMPORTANT]
+>
+> **Star Us**, You will receive all release notifications from GitHub without any delay ~
+
+<a href="https://next.ossinsight.io/widgets/official/compose-last-28-days-stats?repo_id=1081230042" target="_blank" style="display: block" align="center">
+  <picture>
+    <source media="(prefers-color-scheme: dark)" srcset="https://next.ossinsight.io/widgets/official/compose-last-28-days-stats/thumbnail.png?repo_id=1081230042&image_size=auto&color_scheme=dark" width="655" height="auto">
+    <img alt="Performance Stats of nexmoe/VidBee - Last 28 days" src="https://next.ossinsight.io/widgets/official/compose-last-28-days-stats/thumbnail.png?repo_id=1081230042&image_size=auto&color_scheme=light" width="655" height="auto">
+  </picture>
+</a>
+
+<!-- Made with [OSS Insight](https://ossinsight.io/) -->
+
+## ✨ Features
+
+### 🌍 Global Video Download Support
+
+Download videos from almost any website worldwide through the powerful yt-dlp engine. Support for 1000+ sites including YouTube, TikTok, Instagram, Twitter, and many more.
+
+![VidBee Main Interface](screenshots/main-interface.png)
+
+### 🎨 Best-in-class UI Experience
+
+Modern, clean interface with intuitive operations. One-click pause/resume/retry, real-time progress tracking, and comprehensive download queue management.
+
+![VidBee Download Queue](screenshots/download-queue.png)
+
+### 📡 RSS Auto Download
+
+Automatically subscribe to RSS feeds and auto-download new videos in the background from your favorite creators across YouTube, TikTok, and more. Set up RSS subscriptions once, and VidBee will automatically download new uploads without manual intervention, perfect for keeping up with your favorite channels and creators.
+
+## 🌐 Supported Sites
+
+VidBee supports hundreds of video and audio platforms through yt-dlp. Here are the most popular platforms:
+
+| Video Platforms | Audio & Other Platforms |
+| :--------------- | :---------------------- |
+| YouTube          | YouTube Music           |
+| TikTok           | SoundCloud              |
+| Facebook         | Mixcloud                |
+| Instagram        | Bandcamp                |
+| X (Twitter)      | Reddit                  |
+| Vimeo            |                         |
+| Dailymotion      |                         |
+| Twitch           |                         |
+| LinkedIn         |                         |
+| Pinterest        |                         |
+| Tumblr           |                         |
+| Niconico         |                         |
+| Kick             |                         |
+
+> **💡 Note:** VidBee uses [yt-dlp](https://github.com/yt-dlp/yt-dlp) under the hood, which supports 1000+ sites. For the complete list, visit the [yt-dlp supported sites documentation](https://github.com/yt-dlp/yt-dlp/blob/master/supportedsites.md).
+
+## 🤝 Contributing
+
+You are welcome to join the open source community to build together. Please check our [Contributing Guide](./CONTRIBUTING.md) for more details.
+
+## 📄 License
+
+This project is distributed under the MIT License. See [`LICENSE`](LICENSE) for details.
+
+## 🙏 Thanks
+
+- [yt-dlp](https://github.com/yt-dlp/yt-dlp) - The powerful video downloader engine
+- [FFmpeg](https://ffmpeg.org/) - The multimedia framework for video and audio processing
+- [Electron](https://www.electronjs.org/) - Build cross-platform desktop apps
+- [React](https://react.dev/) - The UI library
+- [Vite](https://vitejs.dev/) - Next generation frontend tooling
+- [Tailwind CSS](https://tailwindcss.com/) - Utility-first CSS framework
+- [shadcn/ui](https://ui.shadcn.com/) - Beautifully designed components

biome.json

@@ -39,7 +39,18 @@
   },
   "files": {
     "ignoreUnknown": false,
-    "includes": ["**/*.ts", "**/*.tsx", "**/*.js", "**/*.jsx", "**/*.json"]
+    "includes": [
+      "**/*.ts",
+      "**/*.tsx",
+      "**/*.js",
+      "**/*.jsx",
+      "**/*.json",
+      "!monkey/dist",
+      "!dist",
+      "!out",
+      "!build"
+    ],
+    "experimentalScannerIgnores": ["monkey/dist/**", "dist/**", "out/**", "build/**"]
   },
   "vcs": {
     "enabled": true,

conductor.json

@@ -0,0 +1,6 @@
+{
+  "scripts": {
+    "setup": "rm -rf resources && cp -r $CONDUCTOR_ROOT_PATH/resources resources && pnpm install",
+    "run": "pnpm run dev"
+  }
+}

drizzle.config.ts

@@ -0,0 +1,7 @@
+import { defineConfig } from 'drizzle-kit'
+
+export default defineConfig({
+  schema: './src/main/lib/database/schema.ts',
+  out: './resources/drizzle',
+  dialect: 'sqlite'
+})

electron-builder.yml

@@ -2,6 +2,10 @@ appId: com.vidbee
 productName: VidBee
 directories:
   buildResources: build
+protocols:
+  - name: VidBee
+    schemes:
+      - vidbee
 files:
   - '!**/.vscode/*'
   - '!src/*'
@@ -19,16 +23,24 @@ nsis:
   uninstallDisplayName: ${productName}
   createDesktopShortcut: always
 mac:
+  identity: null
   entitlementsInherit: build/entitlements.mac.plist
   notarize: false
-dmg:
-  artifactName: ${name}-${version}.${ext}
+  artifactName: ${name}-${version}-${arch}.${ext}
+  target:
+    - target: zip
+      arch:
+        - arm64
+        - x64
+    - target: dmg
+      arch:
+        - arm64
+        - x64
 linux:
   target:
     - AppImage
-    - snap
     - deb
-  maintainer: yourname@example.com
+  maintainer: nexmoex@gmail.com
   category: Utility
 appImage:
   artifactName: ${name}-${version}.${ext}
@@ -38,3 +50,5 @@ publish:
   url: https://github.com/nexmoe/vidbee/releases/latest/download
 electronDownload:
   mirror: https://npmmirror.com/mirrors/electron/
+electronLanguages:
+  - en

entitlements.mac.plist

@@ -1,12 +0,0 @@
-<?xml version="1.0" encoding="UTF-8"?>
-<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">
-<plist version="1.0">
-  <dict>
-    <key>com.apple.security.cs.allow-jit</key>
-    <true/>
-    <key>com.apple.security.cs.allow-unsigned-executable-memory</key>
-    <true/>
-    <key>com.apple.security.cs.allow-dyld-environment-variables</key>
-    <true/>
-  </dict>
-</plist>

extension/.gitignore

@@ -0,0 +1,26 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+.output
+stats.html
+stats-*.json
+.wxt
+web-ext.config.ts
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

extension/README.md

@@ -0,0 +1,3 @@
+# WXT + React
+
+This template should help get you started developing with React in WXT.

extension/assets/content.css

@@ -0,0 +1,163 @@
+.vidbee-download-container {
+  position: fixed;
+  bottom: 16px;
+  right: 16px;
+  z-index: 9999;
+  transition: all 0.2s ease;
+  overflow: visible;
+}
+
+.vidbee-download-container.vidbee-hidden {
+  opacity: 0;
+  pointer-events: none;
+  transform: scale(0);
+}
+
+.vidbee-download-button {
+  position: relative;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px;
+  height: 36px;
+  padding: 0;
+  background: rgba(0, 0, 0, 0.5);
+  backdrop-filter: blur(8px);
+  -webkit-backdrop-filter: blur(8px);
+  color: rgba(255, 255, 255, 0.8);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  border-radius: 50%;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
+  cursor: pointer;
+  font-size: 0;
+  transition: all 0.2s ease;
+  opacity: 0.6;
+  overflow: visible;
+}
+
+.vidbee-download-button:hover {
+  opacity: 1;
+  background: rgba(0, 0, 0, 0.7);
+  border-color: rgba(255, 255, 255, 0.2);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
+  transform: scale(1.1);
+}
+
+.vidbee-download-button:active {
+  transform: scale(0.95);
+}
+
+.vidbee-download-button svg {
+  flex-shrink: 0;
+  stroke: currentColor;
+  width: 16px;
+  height: 16px;
+}
+
+.vidbee-tooltip {
+  position: absolute;
+  right: calc(100% + 8px);
+  top: 50%;
+  padding: 6px 10px;
+  background: rgba(0, 0, 0, 0.9);
+  backdrop-filter: blur(8px);
+  -webkit-backdrop-filter: blur(8px);
+  color: white;
+  font-size: 12px;
+  font-weight: 500;
+  white-space: nowrap;
+  border-radius: 4px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+  opacity: 0;
+  pointer-events: none;
+  transition: opacity 0.2s ease, transform 0.2s ease;
+  transform: translateY(-50%) translateX(4px);
+  z-index: 10000;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial,
+    sans-serif;
+  line-height: 1;
+}
+
+.vidbee-tooltip::after {
+  content: '';
+  position: absolute;
+  left: 100%;
+  top: 50%;
+  transform: translateY(-50%);
+  border: 4px solid transparent;
+  border-left-color: rgba(0, 0, 0, 0.9);
+}
+
+.vidbee-download-button:hover .vidbee-tooltip {
+  opacity: 1;
+  transform: translateY(-50%) translateX(0);
+}
+
+.vidbee-close-button {
+  position: absolute;
+  top: -6px;
+  right: -6px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 18px;
+  height: 18px;
+  padding: 0;
+  background: rgba(255, 77, 77, 0.9);
+  backdrop-filter: blur(4px);
+  -webkit-backdrop-filter: blur(4px);
+  color: white;
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 50%;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+  cursor: pointer;
+  font-size: 0;
+  transition: all 0.2s ease;
+  z-index: 1;
+  opacity: 0;
+  pointer-events: none;
+  overflow: visible;
+}
+
+.vidbee-download-container:hover .vidbee-close-button {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.vidbee-close-button:hover {
+  background: rgba(255, 77, 77, 1);
+  transform: scale(1.15);
+  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
+}
+
+.vidbee-close-button:active {
+  transform: scale(0.9);
+}
+
+.vidbee-close-button svg {
+  flex-shrink: 0;
+  stroke: currentColor;
+  width: 10px;
+  height: 10px;
+}
+
+.vidbee-close-button .vidbee-tooltip {
+  right: calc(100% + 6px);
+  top: 50%;
+  left: auto;
+  transform: translateY(-50%) translateX(4px);
+}
+
+.vidbee-close-button .vidbee-tooltip::after {
+  left: 100%;
+  top: 50%;
+  right: auto;
+  transform: translateY(-50%);
+  border-left-color: rgba(0, 0, 0, 0.9);
+  border-top-color: transparent;
+}
+
+.vidbee-download-container:hover .vidbee-close-button:hover .vidbee-tooltip {
+  opacity: 1;
+  transform: translateY(-50%) translateX(0);
+}

extension/entrypoints/background.ts

@@ -0,0 +1,203 @@
+type VideoFormat = {
+  format_id?: string
+  ext?: string
+  format_note?: string
+  resolution?: string
+  width?: number
+  height?: number
+  fps?: number
+  vcodec?: string
+  acodec?: string
+  filesize?: number
+  filesize_approx?: number
+  tbr?: number
+}
+
+type VideoInfo = {
+  title?: string
+  thumbnail?: string
+  duration?: number
+  formats?: VideoFormat[]
+}
+
+type VideoInfoCacheEntry = {
+  url: string
+  status: 'pending' | 'ready' | 'error'
+  fetchedAt: number
+  info?: VideoInfo
+  error?: string
+}
+
+const PORT_RANGE_START = 27100
+const PORT_RANGE_END = 27120
+const STATUS_TIMEOUT_MS = 800
+const INFO_TIMEOUT_MS = 60000
+const CACHE_TTL_MS = 5 * 60 * 1000
+
+const pendingRequests = new Map<string, Promise<void>>()
+const defaultIconPaths = {
+  16: 'icon/16.png',
+  32: 'icon/32.png',
+  48: 'icon/48.png',
+  128: 'icon/128.png'
+}
+const loadingIconPaths = {
+  16: 'icon/icon-loading-16.png',
+  32: 'icon/icon-loading-32.png',
+  48: 'icon/icon-loading-48.png',
+  128: 'icon/icon-loading-128.png'
+}
+const successIconPaths = {
+  16: 'icon/icon-success-16.png',
+  32: 'icon/icon-success-32.png',
+  48: 'icon/icon-success-48.png',
+  128: 'icon/icon-success-128.png'
+}
+
+const setActionIcon = (status: 'default' | 'loading' | 'success', tabId?: number): void => {
+  const paths =
+    status === 'loading'
+      ? loadingIconPaths
+      : status === 'success'
+        ? successIconPaths
+        : defaultIconPaths
+  const options = tabId ? { path: paths, tabId } : { path: paths }
+  void browser.action.setIcon(options)
+}
+
+const fetchJson = async <T>(url: string, timeoutMs: number): Promise<T> => {
+  const controller = new AbortController()
+  const timeoutId = setTimeout(() => controller.abort('timeout'), timeoutMs)
+
+  try {
+    const response = await fetch(url, { signal: controller.signal })
+    const data = (await response.json().catch(() => null)) as (T & { error?: string }) | null
+    if (!response.ok) {
+      const message = data && typeof data === 'object' && 'error' in data ? data.error : null
+      const details = data && typeof data === 'object' && 'details' in data ? data.details : null
+      const combined = [message, details].filter(Boolean).join('\n\n')
+      throw new Error(combined || `Request failed: ${response.status}`)
+    }
+    return data as T
+  } catch (error) {
+    if (error instanceof DOMException && error.name === 'AbortError') {
+      throw new Error('Request timed out.')
+    }
+    if (error instanceof Error && error.message.includes('signal is aborted')) {
+      throw new Error('Request timed out.')
+    }
+    if (error instanceof Error && error.message.includes('Failed to fetch')) {
+      throw new Error('VidBee app not responding on this port.')
+    }
+    throw error
+  } finally {
+    clearTimeout(timeoutId)
+  }
+}
+
+const findAvailablePort = async (): Promise<number | null> => {
+  for (let port = PORT_RANGE_START; port <= PORT_RANGE_END; port += 1) {
+    const baseUrl = `http://127.0.0.1:${port}`
+    try {
+      await fetchJson<{ ok: boolean }>(`${baseUrl}/status`, STATUS_TIMEOUT_MS)
+      return port
+    } catch {
+      // Keep scanning.
+    }
+  }
+  return null
+}
+
+const requestVideoInfo = async (targetUrl: string): Promise<VideoInfo> => {
+  const port = await findAvailablePort()
+  if (!port) {
+    throw new Error('VidBee app not found on localhost.')
+  }
+
+  const baseUrl = `http://127.0.0.1:${port}`
+  const tokenResponse = await fetchJson<{ token?: string }>(`${baseUrl}/token`, STATUS_TIMEOUT_MS)
+  if (!tokenResponse.token) {
+    throw new Error('Failed to acquire token from VidBee.')
+  }
+
+  return fetchJson<VideoInfo>(
+    `${baseUrl}/video-info?url=${encodeURIComponent(targetUrl)}&token=${encodeURIComponent(
+      tokenResponse.token
+    )}`,
+    INFO_TIMEOUT_MS
+  )
+}
+
+const getCacheMap = async (): Promise<Record<string, VideoInfoCacheEntry>> => {
+  const data = await browser.storage.local.get('videoInfoCacheByUrl')
+  const map = data.videoInfoCacheByUrl as Record<string, VideoInfoCacheEntry> | undefined
+  if (!map) return {}
+  return map
+}
+
+const pruneCache = (map: Record<string, VideoInfoCacheEntry>): void => {
+  const now = Date.now()
+  for (const [key, entry] of Object.entries(map)) {
+    if (now - entry.fetchedAt > CACHE_TTL_MS) {
+      delete map[key]
+    }
+  }
+}
+
+const loadCache = async (url: string): Promise<VideoInfoCacheEntry | null> => {
+  const map = await getCacheMap()
+  pruneCache(map)
+  const cache = map[url]
+  if (!cache) return null
+  return cache
+}
+
+const saveCacheEntry = async (cache: VideoInfoCacheEntry): Promise<void> => {
+  const map = await getCacheMap()
+  pruneCache(map)
+  map[cache.url] = cache
+  await browser.storage.local.set({ videoInfoCacheByUrl: map })
+}
+
+const fetchAndCache = async (url: string, tabId?: number): Promise<void> => {
+  if (pendingRequests.has(url)) {
+    return pendingRequests.get(url) as Promise<void>
+  }
+
+  const task = (async () => {
+    const existing = await loadCache(url)
+    if (existing?.status === 'ready') {
+      setActionIcon('success', tabId)
+      return
+    }
+
+    setActionIcon('loading', tabId)
+    await saveCacheEntry({ url, status: 'pending', fetchedAt: Date.now() })
+
+    try {
+      const info = await requestVideoInfo(url)
+      await saveCacheEntry({ url, status: 'ready', fetchedAt: Date.now(), info })
+      setActionIcon('success', tabId)
+    } catch (error) {
+      const message = error instanceof Error ? error.message : 'Failed to fetch video info.'
+      await saveCacheEntry({ url, status: 'error', fetchedAt: Date.now(), error: message })
+      setActionIcon('default', tabId)
+    }
+  })()
+
+  pendingRequests.set(url, task)
+  try {
+    await task
+  } finally {
+    pendingRequests.delete(url)
+  }
+}
+
+export default defineBackground(() => {
+  browser.runtime.onMessage.addListener((message: { type?: string; url?: string }, sender) => {
+    if (message.type !== 'video-info:fetch' || !message.url) {
+      return
+    }
+    void fetchAndCache(message.url, sender.tab?.id)
+  })
+})

extension/entrypoints/popup/App.css

@@ -0,0 +1,291 @@
+:root {
+  --bg: #ffffff;
+  --fg: #111111;
+  --fg-secondary: #757575;
+  --border: #f0f0f0;
+  --accent: #000000;
+  --error: #e00000;
+  --success: #00c853;
+  --warning: #ffd600;
+}
+
+body {
+  margin: 0;
+  font-family: -apple-system, BlinkMacSystemFont, "Segoe UI", Roboto, Helvetica, Arial, sans-serif;
+  -webkit-font-smoothing: antialiased;
+  background: var(--bg);
+  color: var(--fg);
+}
+
+#root {
+  width: 360px;
+  min-height: 200px;
+  padding: 24px;
+  box-sizing: border-box;
+}
+
+.app {
+  display: flex;
+  flex-direction: column;
+  gap: 24px;
+}
+
+header {
+  display: flex;
+  justify-content: space-between;
+  align-items: center;
+}
+
+h1 {
+  font-size: 13px;
+  font-weight: 600;
+  margin: 0;
+  letter-spacing: -0.01em;
+  color: var(--fg);
+}
+
+.status-indicator {
+  font-size: 11px;
+  font-weight: 500;
+  color: var(--fg-secondary);
+  display: flex;
+  align-items: center;
+  gap: 6px;
+}
+
+.status-dot {
+  width: 6px;
+  height: 6px;
+  border-radius: 50%;
+  background-color: var(--border);
+}
+.status-dot.loading { background-color: var(--warning); box-shadow: 0 0 4px var(--warning); }
+.status-dot.ok { background-color: var(--success); }
+.status-dot.error { background-color: var(--error); }
+
+.video-info {
+  display: grid;
+  grid-template-columns: 1fr 90px;
+  gap: 20px;
+  align-items: start;
+}
+
+.video-details h2 {
+  font-size: 15px;
+  font-weight: 500;
+  line-height: 1.4;
+  margin: 0 0 8px 0;
+  color: var(--fg);
+}
+
+.meta-row {
+  font-size: 12px;
+  color: var(--fg-secondary);
+  margin: 0 0 4px 0;
+  display: flex;
+  align-items: center;
+  gap: 8px;
+}
+
+.thumbnail {
+  width: 90px;
+  height: 50px;
+  background: var(--border);
+  object-fit: cover;
+  border-radius: 6px;
+  display: block;
+}
+
+.formats-section {
+  display: flex;
+  flex-direction: column;
+  gap: 20px;
+}
+
+.format-group {
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+/* Sticky headers for long lists */
+.sticky-title {
+  position: sticky;
+  top: 0;
+  background: var(--bg);
+  padding: 4px 0;
+  z-index: 10;
+}
+
+.group-title {
+  font-size: 11px;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+  color: var(--fg-secondary);
+  font-weight: 600;
+  border-bottom: 2px solid var(--border);
+  padding-bottom: 4px;
+}
+
+.format-table {
+  width: 100%;
+  border-collapse: collapse;
+  font-size: 12px;
+  table-layout: fixed;
+}
+
+.format-table th {
+  text-align: left;
+  font-weight: 400;
+  color: var(--fg-secondary);
+  padding-bottom: 6px;
+  border-bottom: 1px solid var(--border);
+  font-size: 10px;
+  text-transform: uppercase;
+  padding-top: 6px;
+}
+
+.format-table td {
+  padding: 6px 0;
+  border-bottom: 1px solid var(--border);
+  color: var(--fg);
+  white-space: nowrap;
+  overflow: hidden;
+  text-overflow: ellipsis;
+}
+
+.format-table tr:last-child td {
+  border-bottom: none;
+}
+
+.col-id { width: 50px; color: var(--fg-secondary); }
+.col-ext { width: 50px; }
+.col-size { width: 60px; text-align: right; }
+.format-table th.col-size { text-align: right; }
+
+.empty-state {
+  font-size: 12px;
+  color: var(--fg-secondary);
+  padding: 12px 0;
+  font-style: italic;
+  text-align: center;
+}
+
+.error-banner {
+  font-size: 12px;
+  color: var(--error);
+  line-height: 1.5;
+  background: rgba(224, 0, 0, 0.05);
+  padding: 12px;
+  border-radius: 6px;
+}
+
+.primary-button {
+  background: var(--fg);
+  color: var(--bg);
+  border: none;
+  border-radius: 8px;
+  padding: 12px;
+  font-size: 13px;
+  font-weight: 500;
+  cursor: pointer;
+  width: 100%;
+  transition: opacity 0.2s;
+}
+
+.primary-button:hover {
+  opacity: 0.9;
+}
+
+.primary-button:active {
+  transform: scale(0.98);
+}
+
+
+.error-container {
+  display: flex;
+  flex-direction: column;
+  gap: 12px;
+}
+
+.troubleshoot-box {
+  background: var(--border);
+  padding: 12px;
+  border-radius: 6px;
+  display: flex;
+  flex-direction: column;
+  gap: 8px;
+}
+
+.troubleshoot-title {
+  font-size: 11px;
+  font-weight: 600;
+  color: var(--fg-secondary);
+  margin: 0;
+  text-transform: uppercase;
+  letter-spacing: 0.05em;
+}
+
+.troubleshoot-actions {
+  display: flex;
+  align-items: center;
+  gap: 8px;
+  font-size: 13px;
+}
+
+.link-button {
+  background: none;
+  border: none;
+  padding: 0;
+  color: var(--accent);
+  text-decoration: none;
+  font-weight: 500;
+  cursor: pointer;
+  font-family: inherit;
+  font-size: inherit;
+}
+
+.link-button:hover {
+  text-decoration: underline;
+}
+
+.divider {
+  color: var(--fg-secondary);
+}
+
+
+.loading-container {
+  display: flex;
+  flex-direction: column;
+  justify-content: center;
+  align-items: center;
+  min-height: 200px;
+  gap: 16px;
+  flex: 1;
+  width: 100%;
+}
+
+.spinner {
+  width: 24px;
+  height: 24px;
+  border: 2.5px solid var(--border);
+  border-top-color: var(--fg);
+  border-radius: 50%;
+  animation: spin 0.8s linear infinite;
+}
+
+.loading-text {
+  font-size: 13px;
+  font-weight: 500;
+  color: var(--fg-secondary);
+  animation: pulse 1.5s ease-in-out infinite;
+}
+
+@keyframes spin {
+  to { transform: rotate(360deg); }
+}
+
+@keyframes pulse {
+  0%, 100% { opacity: 1; }
+  50% { opacity: 0.6; }
+}

extension/entrypoints/popup/App.tsx

@@ -0,0 +1,415 @@
+import { useEffect, useMemo, useState } from 'react'
+import './App.css'
+
+type VideoFormat = {
+  format_id?: string
+  ext?: string
+  format_note?: string
+  resolution?: string
+  width?: number
+  height?: number
+  fps?: number
+  vcodec?: string
+  acodec?: string
+  filesize?: number
+  filesize_approx?: number
+  tbr?: number
+}
+
+type VideoInfo = {
+  title?: string
+  thumbnail?: string
+  duration?: number
+  formats?: VideoFormat[]
+}
+
+const CACHE_TTL_MS = 60 * 60 * 1000
+
+const isValidHttpUrl = (value?: string): boolean => {
+  if (!value) return false
+  return value.startsWith('http://') || value.startsWith('https://')
+}
+
+const formatDuration = (value?: number): string => {
+  if (!value || value <= 0) return 'Unknown'
+  const totalSeconds = Math.round(value)
+  const hours = Math.floor(totalSeconds / 3600)
+  const minutes = Math.floor((totalSeconds % 3600) / 60)
+  const seconds = totalSeconds % 60
+  const paddedMinutes = hours > 0 ? String(minutes).padStart(2, '0') : String(minutes)
+  const paddedSeconds = String(seconds).padStart(2, '0')
+  return hours > 0 ? `${hours}:${paddedMinutes}:${paddedSeconds}` : `${minutes}:${paddedSeconds}`
+}
+
+const formatBytes = (value?: number): string => {
+  if (!value || value <= 0) return '-'
+  const units = ['B', 'KB', 'MB', 'GB']
+  let size = value
+  let unitIndex = 0
+  while (size >= 1024 && unitIndex < units.length - 1) {
+    size /= 1024
+    unitIndex += 1
+  }
+  return `${size.toFixed(size >= 100 || unitIndex === 0 ? 0 : 1)} ${units[unitIndex]}`
+}
+
+const isVideoFormat = (format: VideoFormat): boolean => {
+  if (format.vcodec && format.vcodec !== 'none') {
+    return true
+  }
+  return Boolean(format.resolution || format.width || format.height)
+}
+
+const isAudioFormat = (format: VideoFormat): boolean => {
+  return Boolean(format.acodec && format.acodec !== 'none' && !isVideoFormat(format))
+}
+
+type VideoInfoCacheEntry = {
+  url: string
+  status: 'pending' | 'ready' | 'error'
+  fetchedAt: number
+  info?: VideoInfo
+  error?: string
+}
+
+type VideoGroup = {
+  label: string
+  height: number
+  formats: VideoFormat[]
+}
+
+const loadCachedInfo = async (url: string): Promise<VideoInfoCacheEntry | null> => {
+  const data = await browser.storage.local.get('videoInfoCacheByUrl')
+  const map = data.videoInfoCacheByUrl as Record<string, VideoInfoCacheEntry> | undefined
+  if (!map) return null
+  const cached = map[url]
+  if (!cached) return null
+  if (Date.now() - cached.fetchedAt > CACHE_TTL_MS) return null
+  return cached
+}
+
+const sanitizeError = (error: string): string => {
+  const message = error.toLowerCase()
+  if (
+    message.includes('localhost') ||
+    message.includes('fetch') ||
+    message.includes('network') ||
+    message.includes('connect') ||
+    message.includes('failed to request')
+  ) {
+    return 'Client connection failed'
+  }
+  return error
+}
+
+function App() {
+  const [info, setInfo] = useState<VideoInfo | null>(null)
+  const [error, setError] = useState<string | null>(null)
+  const [loading, setLoading] = useState(false)
+  const [currentUrl, setCurrentUrl] = useState<string>('')
+  const [retryTrigger, setRetryTrigger] = useState(0)
+
+  useEffect(() => {
+    let active = true
+    const targetState = { url: '' }
+
+    const handleStorageChange = (
+      changes: Record<string, browser.storage.StorageChange>,
+      areaName: string
+    ) => {
+      if (!active || areaName !== 'local') return
+      const change = changes.videoInfoCacheByUrl
+      if (!change?.newValue) return
+
+      const map = change.newValue as Record<string, VideoInfoCacheEntry>
+      const next = map[targetState.url]
+      if (!next) return
+
+      if (next.status === 'ready' && next.info) {
+        setInfo(next.info)
+        setError(null)
+        setLoading(false)
+      } else if (next.status === 'error' && next.error) {
+        setError(sanitizeError(next.error))
+        setInfo(null)
+        setLoading(false)
+      } else if (next.status === 'pending') {
+        setLoading(true)
+      }
+    }
+
+    browser.storage.onChanged.addListener(handleStorageChange)
+
+    const loadInfo = async () => {
+      setLoading(true)
+      setError(null)
+      setInfo(null)
+
+      const [tab] = await browser.tabs.query({ active: true, currentWindow: true })
+      if (!isValidHttpUrl(tab?.url)) {
+        setError('Please open a valid video page first.')
+        setLoading(false)
+        return
+      }
+
+      const targetUrl = tab.url as string
+      targetState.url = targetUrl
+      setCurrentUrl(targetUrl)
+
+      const cached = await loadCachedInfo(targetUrl)
+      const shouldBypassCache = retryTrigger > 0
+      if (cached && !shouldBypassCache) {
+        if (cached.status === 'ready' && cached.info) {
+          setInfo(cached.info)
+          setLoading(false)
+          return
+        }
+        if (cached.status === 'error' && cached.error) {
+          setError(sanitizeError(cached.error))
+          setLoading(false)
+          return
+        }
+      }
+
+      try {
+        await browser.runtime.sendMessage({
+          type: 'video-info:fetch',
+          url: targetUrl
+        })
+      } catch (err) {
+        const message = err instanceof Error ? err.message : 'Failed to request video info.'
+        setError(sanitizeError(message))
+        setLoading(false)
+      }
+
+      const latest = await loadCachedInfo(targetUrl)
+      if (latest && latest.status === 'ready' && latest.info) {
+        setInfo(latest.info)
+        setError(null)
+        setLoading(false)
+      } else if (latest && latest.status === 'error' && latest.error) {
+        setError(sanitizeError(latest.error))
+        setInfo(null)
+        setLoading(false)
+      }
+    }
+
+    void loadInfo()
+
+    return () => {
+      active = false
+      browser.storage.onChanged.removeListener(handleStorageChange)
+    }
+  }, [retryTrigger])
+
+  const formats = useMemo(() => info?.formats ?? [], [info])
+  const groupedFormats = useMemo(() => {
+    const video: VideoFormat[] = []
+    const audio: VideoFormat[] = []
+    const other: VideoFormat[] = []
+
+    for (const format of formats) {
+      if (isVideoFormat(format)) {
+        video.push(format)
+      } else if (isAudioFormat(format)) {
+        audio.push(format)
+      } else {
+        other.push(format)
+      }
+    }
+
+    return { video, audio, other }
+  }, [formats])
+
+  const groupedVideoFormats = useMemo(() => {
+    const raw = groupedFormats.video
+    if (!raw.length) return []
+
+    const groups: Record<number, VideoFormat[]> = {}
+    const noHeight: VideoFormat[] = []
+
+    for (const f of raw) {
+      const h = f.height || f.resolution?.match(/x(\d+)/)?.[1]
+      const heightVal = h ? Number(h) : 0
+
+      if (heightVal > 0) {
+        if (!groups[heightVal]) groups[heightVal] = []
+        groups[heightVal].push(f)
+      } else {
+        noHeight.push(f)
+      }
+    }
+
+    const sortedLabels = Object.keys(groups)
+      .map(Number)
+      .sort((a, b) => b - a)
+
+    const result: VideoGroup[] = sortedLabels.map((h) => ({
+      label: `${h}p`,
+      height: h,
+      formats: groups[h].sort((a, b) => {
+        const sa = a.filesize || a.filesize_approx || 0
+        const sb = b.filesize || b.filesize_approx || 0
+        return sb - sa
+      })
+    }))
+
+    if (noHeight.length > 0) {
+      result.push({
+        label: 'Other',
+        height: 0,
+        formats: noHeight
+      })
+    }
+
+    return result
+  }, [groupedFormats.video])
+
+  const handleOpenClient = () => {
+    if (!currentUrl) return
+    const deepLink = `vidbee://download?url=${encodeURIComponent(currentUrl)}`
+    window.location.href = deepLink
+  }
+
+  const renderStatus = () => {
+    // if (loading) return null
+    if (error)
+      return (
+        <span className="status-indicator">
+          <div className="status-dot error" /> Error
+        </span>
+      )
+    if (info)
+      return (
+        <span className="status-indicator">
+          <div className="status-dot ok" /> Ready
+        </span>
+      )
+    return (
+      <span className="status-indicator">
+        <div className="status-dot" /> Idle
+      </span>
+    )
+  }
+
+  return (
+    <div className="app">
+      <header>
+        <h1>VidBee</h1>
+        {renderStatus()}
+      </header>
+      {loading && (
+        <div className="loading-container">
+          <div className="spinner" />
+          <div className="loading-text">Analyzing video...</div>
+        </div>
+      )}
+
+      {!loading && error && (
+        <div className="error-container">
+          <div className="error-banner">{error}</div>
+          <div className="troubleshoot-box">
+            <p className="troubleshoot-title">Having trouble?</p>
+            <div className="troubleshoot-actions">
+              <button
+                type="button"
+                className="link-button"
+                onClick={() => {
+                  window.location.href = 'vidbee://'
+                  setTimeout(() => setRetryTrigger((c) => c + 1), 100)
+                }}
+              >
+                Open Client
+              </button>
+              <span className="divider">•</span>
+              <a
+                href="https://vidbee.app"
+                target="_blank"
+                rel="noopener noreferrer"
+                className="link-button"
+              >
+                Download
+              </a>
+            </div>
+          </div>
+        </div>
+      )}
+
+      {!loading && !error && info && (
+        <>
+          <section className="video-info">
+            <div className="video-details">
+              <h2>{info.title || 'Untitled video'}</h2>
+              <div className="meta-row">
+                <span>{formatDuration(info.duration)}</span>
+                <span>•</span>
+                <span>{formats.length} formats</span>
+              </div>
+            </div>
+            {info.thumbnail && <img className="thumbnail" src={info.thumbnail} alt="" />}
+          </section>
+
+          <button type="button" className="primary-button" onClick={handleOpenClient}>
+            Download with VidBee
+          </button>
+
+          <section className="formats-section">
+            {groupedVideoFormats.map((group) => (
+              <div className="format-group" key={group.label}>
+                <div className="group-title sticky-title">{group.label}</div>
+                <table className="format-table">
+                  <thead>
+                    <tr>
+                      <th className="col-id">ID</th>
+                      <th className="col-ext">Ext</th>
+                      <th className="col-size">Size</th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {group.formats.map((f) => (
+                      <tr key={`vg-${group.label}-${f.format_id ?? f.ext ?? 'video'}`}>
+                        <td className="col-id">{f.format_id || '-'}</td>
+                        <td className="col-ext">{f.ext || '-'}</td>
+                        <td className="col-size">{formatBytes(f.filesize || f.filesize_approx)}</td>
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+            ))}
+
+            {groupedVideoFormats.length === 0 && groupedFormats.audio.length === 0 && (
+              <div className="empty-state">No compatible formats.</div>
+            )}
+
+            {groupedFormats.audio.length > 0 && (
+              <div className="format-group">
+                <div className="group-title">Audio Only</div>
+                <table className="format-table">
+                  <thead>
+                    <tr>
+                      <th className="col-id">ID</th>
+                      <th className="col-ext">Ext</th>
+                      <th className="col-size">Size</th>
+                    </tr>
+                  </thead>
+                  <tbody>
+                    {groupedFormats.audio.map((f) => (
+                      <tr key={`a-${f.format_id ?? f.ext ?? 'audio'}`}>
+                        <td className="col-id">{f.format_id || '-'}</td>
+                        <td className="col-ext">{f.ext || '-'}</td>
+                        <td className="col-size">{formatBytes(f.filesize || f.filesize_approx)}</td>
+                      </tr>
+                    ))}
+                  </tbody>
+                </table>
+              </div>
+            )}
+          </section>
+        </>
+      )}
+    </div>
+  )
+}
+
+export default App

extension/entrypoints/popup/index.html

@@ -0,0 +1,13 @@
+<!doctype html>
+<html lang="en">
+  <head>
+    <meta charset="UTF-8" />
+    <meta name="viewport" content="width=device-width, initial-scale=1.0" />
+    <title>Default Popup Title</title>
+    <meta name="manifest.type" content="browser_action" />
+  </head>
+  <body>
+    <div id="root"></div>
+    <script type="module" src="./main.tsx"></script>
+  </body>
+</html>

extension/entrypoints/popup/main.tsx

@@ -0,0 +1,13 @@
+import React from 'react'
+import ReactDOM from 'react-dom/client'
+import App from './App.tsx'
+
+const root = document.getElementById('root')
+
+if (root) {
+  ReactDOM.createRoot(root).render(
+    <React.StrictMode>
+      <App />
+    </React.StrictMode>
+  )
+}

extension/package.json

@@ -0,0 +1,28 @@
+{
+  "name": "wxt-react-starter",
+  "description": "manifest.json description",
+  "private": true,
+  "version": "0.0.0",
+  "type": "module",
+  "scripts": {
+    "dev": "wxt",
+    "dev:firefox": "wxt -b firefox",
+    "build": "wxt build",
+    "build:firefox": "wxt build -b firefox",
+    "zip": "wxt zip",
+    "zip:firefox": "wxt zip -b firefox",
+    "compile": "tsc --noEmit",
+    "postinstall": "wxt prepare"
+  },
+  "dependencies": {
+    "react": "^19.2.3",
+    "react-dom": "^19.2.3"
+  },
+  "devDependencies": {
+    "@types/react": "^19.2.7",
+    "@types/react-dom": "^19.2.3",
+    "@wxt-dev/module-react": "^1.1.5",
+    "typescript": "^5.9.3",
+    "wxt": "^0.20.6"
+  }
+}

extension/public/_locales/en/messages.json

@@ -0,0 +1,8 @@
+{
+  "downloadWithVidBee": {
+    "message": "Download with VidBee"
+  },
+  "hideButton": {
+    "message": "Hide"
+  }
+}

extension/tsconfig.json

@@ -0,0 +1,7 @@
+{
+  "extends": "./.wxt/tsconfig.json",
+  "compilerOptions": {
+    "allowImportingTsExtensions": true,
+    "jsx": "react-jsx"
+  }
+}

extension/wxt.config.ts

@@ -0,0 +1,11 @@
+import { defineConfig } from 'wxt'
+
+// See https://wxt.dev/api/config.html
+export default defineConfig({
+  modules: ['@wxt-dev/module-react'],
+  manifest: {
+    default_locale: 'en',
+    host_permissions: ['http://127.0.0.1/*'],
+    permissions: ['activeTab', 'storage']
+  }
+})

monkey/.gitignore

@@ -0,0 +1,23 @@
+# Logs
+logs
+*.log
+npm-debug.log*
+yarn-debug.log*
+yarn-error.log*
+pnpm-debug.log*
+lerna-debug.log*
+
+node_modules
+dist-ssr
+*.local
+
+# Editor directories and files
+.vscode/*
+!.vscode/extensions.json
+.idea
+.DS_Store
+*.suo
+*.ntvs*
+*.njsproj
+*.sln
+*.sw?

monkey/dist/vidbee-quick-download.user.js

@@ -0,0 +1,156 @@
+// ==UserScript==
+// @name       vidbee-quick-download
+// @namespace  vidbee
+// @version    0.0.1
+// @icon       https://vidbee.org/favicon.svg
+// @match      https://www.youtube.com/*
+// @match      https://youtube.com/*
+// @match      https://music.youtube.com/*
+// @match      https://www.bilibili.com/*
+// @match      https://bilibili.com/*
+// @match      https://www.tiktok.com/*
+// @match      https://tiktok.com/*
+// @match      https://vimeo.com/*
+// @match      https://www.vimeo.com/*
+// @match      https://www.dailymotion.com/*
+// @match      https://dailymotion.com/*
+// @match      https://www.twitch.tv/*
+// @match      https://twitch.tv/*
+// @match      https://twitter.com/*
+// @match      https://www.twitter.com/*
+// @match      https://x.com/*
+// @match      https://www.x.com/*
+// @match      https://www.instagram.com/*
+// @match      https://instagram.com/*
+// @match      https://www.facebook.com/*
+// @match      https://facebook.com/*
+// @match      https://fb.com/*
+// @match      https://www.fb.com/*
+// @match      https://www.reddit.com/*
+// @match      https://reddit.com/*
+// @match      https://soundcloud.com/*
+// @match      https://www.soundcloud.com/*
+// @match      https://www.nicovideo.jp/*
+// @match      https://nicovideo.jp/*
+// @match      https://kick.com/*
+// @match      https://www.kick.com/*
+// @match      https://bandcamp.com/*
+// @match      https://*.bandcamp.com/*
+// @match      https://www.mixcloud.com/*
+// @match      https://mixcloud.com/*
+// @grant      GM_addStyle
+// ==/UserScript==
+
+(function () {
+  'use strict';
+
+  const d=new Set;const importCSS = async e=>{d.has(e)||(d.add(e),(t=>{typeof GM_addStyle=="function"?GM_addStyle(t):(document.head||document.documentElement).appendChild(document.createElement("style")).append(t);})(e));};
+
+  const styleCss = '.vidbee-download-container{position:fixed;bottom:16px;right:16px;z-index:9999;transition:all .2s ease;overflow:visible}.vidbee-download-container.vidbee-hidden{opacity:0;pointer-events:none;transform:scale(0)}.vidbee-download-button{position:relative;display:flex;align-items:center;justify-content:center;width:36px;height:36px;padding:0;background:#00000080;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#fffc;border:1px solid rgba(255,255,255,.1);border-radius:50%;box-shadow:0 2px 8px #0003;cursor:pointer;font-size:0;transition:all .2s ease;opacity:.6;overflow:visible}.vidbee-download-button:hover{opacity:1;background:#000000b3;border-color:#fff3;box-shadow:0 4px 12px #0000004d;transform:scale(1.1)}.vidbee-download-button:active{transform:scale(.95)}.vidbee-download-button svg{flex-shrink:0;stroke:currentColor;width:16px;height:16px}.vidbee-tooltip{position:absolute;right:calc(100% + 8px);top:50%;padding:6px 10px;background:#000000e6;backdrop-filter:blur(8px);-webkit-backdrop-filter:blur(8px);color:#fff;font-size:12px;font-weight:500;white-space:nowrap;border-radius:4px;box-shadow:0 2px 8px #0000004d;opacity:0;pointer-events:none;transition:opacity .2s ease,transform .2s ease;transform:translateY(-50%) translate(4px);z-index:10000;font-family:-apple-system,BlinkMacSystemFont,Segoe UI,Roboto,Helvetica Neue,Arial,sans-serif;line-height:1}.vidbee-tooltip:after{content:"";position:absolute;left:100%;top:50%;transform:translateY(-50%);border:4px solid transparent;border-left-color:#000000e6}.vidbee-download-button:hover .vidbee-tooltip{opacity:1;transform:translateY(-50%) translate(0)}.vidbee-close-button{position:absolute;top:-6px;right:-6px;display:flex;align-items:center;justify-content:center;width:18px;height:18px;padding:0;background:#ff4d4de6;backdrop-filter:blur(4px);-webkit-backdrop-filter:blur(4px);color:#fff;border:1px solid rgba(255,255,255,.2);border-radius:50%;box-shadow:0 2px 4px #0000004d;cursor:pointer;font-size:0;transition:all .2s ease;z-index:1;opacity:0;pointer-events:none;overflow:visible}.vidbee-download-container:hover .vidbee-close-button{opacity:1;pointer-events:auto}.vidbee-close-button:hover{background:#ff4d4d;transform:scale(1.15);box-shadow:0 3px 6px #0006}.vidbee-close-button:active{transform:scale(.9)}.vidbee-close-button svg{flex-shrink:0;stroke:currentColor;width:10px;height:10px}.vidbee-close-button .vidbee-tooltip{right:calc(100% + 6px);top:50%;left:auto;transform:translateY(-50%) translate(4px)}.vidbee-close-button .vidbee-tooltip:after{left:100%;top:50%;right:auto;transform:translateY(-50%);border-left-color:#000000e6;border-top-color:transparent}.vidbee-download-container:hover .vidbee-close-button:hover .vidbee-tooltip{opacity:1;transform:translateY(-50%) translate(0)}';
+  importCSS(styleCss);
+  function getVideoUrl() {
+    return window.location.href;
+  }
+  function hideButtonTemporarily() {
+    const container = document.getElementById("vidbee-download-btn");
+    if (container) {
+      container.classList.add("vidbee-hidden");
+      setTimeout(() => {
+        if (container) {
+          container.classList.remove("vidbee-hidden");
+        }
+      }, 5e3);
+    }
+  }
+  function createVidBeeButton() {
+    if (document.getElementById("vidbee-download-btn")) {
+      return;
+    }
+    const videoUrl = getVideoUrl();
+    if (!videoUrl) {
+      return;
+    }
+    const container = document.createElement("div");
+    container.id = "vidbee-download-btn";
+    container.className = "vidbee-download-container";
+    const button = document.createElement("button");
+    button.className = "vidbee-download-button";
+    button.setAttribute("aria-label", "Download with VidBee");
+    button.innerHTML = `
+    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+      <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
+      <polyline points="7 10 12 15 17 10"></polyline>
+      <line x1="12" y1="15" x2="12" y2="3"></line>
+    </svg>
+    <span class="vidbee-tooltip">Download with VidBee</span>
+  `;
+    const closeButton = document.createElement("button");
+    closeButton.className = "vidbee-close-button";
+    closeButton.setAttribute("aria-label", "Hide button");
+    closeButton.innerHTML = `
+    <svg width="10" height="10" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3">
+      <line x1="18" y1="6" x2="6" y2="18"></line>
+      <line x1="6" y1="6" x2="18" y2="18"></line>
+    </svg>
+    <span class="vidbee-tooltip">Hide</span>
+  `;
+    closeButton.addEventListener("click", (e) => {
+      e.stopPropagation();
+      hideButtonTemporarily();
+    });
+    let clickTimer = null;
+    let clickCount = 0;
+    button.addEventListener("click", () => {
+      clickCount++;
+      if (clickCount === 1) {
+        clickTimer = window.setTimeout(() => {
+          const vidbeeUrl = `vidbee://download?url=${encodeURIComponent(videoUrl)}`;
+          window.location.href = vidbeeUrl;
+          clickCount = 0;
+        }, 300);
+      } else if (clickCount === 2) {
+        if (clickTimer !== null) {
+          clearTimeout(clickTimer);
+        }
+        clickCount = 0;
+        hideButtonTemporarily();
+      }
+    });
+    container.appendChild(button);
+    container.appendChild(closeButton);
+    document.body.appendChild(container);
+  }
+  function init() {
+    if (document.readyState === "loading") {
+      document.addEventListener("DOMContentLoaded", createVidBeeButton);
+    } else {
+      createVidBeeButton();
+    }
+    let lastUrl = location.href;
+    let urlCheckTimer = null;
+    const checkUrlChange = () => {
+      const currentUrl = location.href;
+      if (currentUrl !== lastUrl) {
+        lastUrl = currentUrl;
+        const oldButton = document.getElementById("vidbee-download-btn");
+        if (oldButton) {
+          oldButton.remove();
+        }
+        const hostname = window.location.hostname;
+        const delay = hostname.includes("bilibili.com") ? 800 : 500;
+        setTimeout(createVidBeeButton, delay);
+      }
+    };
+    new MutationObserver(() => {
+      if (urlCheckTimer !== null) {
+        clearTimeout(urlCheckTimer);
+      }
+      urlCheckTimer = window.setTimeout(checkUrlChange, 100);
+    }).observe(document.body, { childList: true, subtree: true });
+    window.addEventListener("popstate", () => {
+      setTimeout(checkUrlChange, 300);
+    });
+  }
+  init();
+
+})();

monkey/package.json

@@ -0,0 +1,16 @@
+{
+  "name": "vidbee-quick-download",
+  "private": true,
+  "version": "0.0.1",
+  "type": "module",
+  "scripts": {
+    "dev": "vite",
+    "build": "tsc && vite build",
+    "preview": "vite preview"
+  },
+  "devDependencies": {
+    "typescript": "^5.9.2",
+    "vite": "^7.1.3",
+    "vite-plugin-monkey": "^7.1.1"
+  }
+}

monkey/pnpm-lock.yaml

@@ -0,0 +1,943 @@
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+  '@esbuild/win32-arm64@0.27.2':
+    optional: true
+
+  '@esbuild/win32-ia32@0.27.2':
+    optional: true
+
+  '@esbuild/win32-x64@0.27.2':
+    optional: true
+
+  '@jridgewell/sourcemap-codec@1.5.5': {}
+
+  '@rollup/rollup-android-arm-eabi@4.54.0':
+    optional: true
+
+  '@rollup/rollup-android-arm64@4.54.0':
+    optional: true
+
+  '@rollup/rollup-darwin-arm64@4.54.0':
+    optional: true
+
+  '@rollup/rollup-darwin-x64@4.54.0':
+    optional: true
+
+  '@rollup/rollup-freebsd-arm64@4.54.0':
+    optional: true
+
+  '@rollup/rollup-freebsd-x64@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-arm-gnueabihf@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-arm-musleabihf@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-arm64-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-arm64-musl@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-loong64-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-ppc64-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-riscv64-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-riscv64-musl@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-s390x-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-x64-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-linux-x64-musl@4.54.0':
+    optional: true
+
+  '@rollup/rollup-openharmony-arm64@4.54.0':
+    optional: true
+
+  '@rollup/rollup-win32-arm64-msvc@4.54.0':
+    optional: true
+
+  '@rollup/rollup-win32-ia32-msvc@4.54.0':
+    optional: true
+
+  '@rollup/rollup-win32-x64-gnu@4.54.0':
+    optional: true
+
+  '@rollup/rollup-win32-x64-msvc@4.54.0':
+    optional: true
+
+  '@types/estree@1.0.8': {}
+
+  acorn-walk@8.3.4:
+    dependencies:
+      acorn: 8.15.0
+
+  acorn@8.15.0: {}
+
+  balanced-match@1.0.2: {}
+
+  brace-expansion@1.1.12:
+    dependencies:
+      balanced-match: 1.0.2
+      concat-map: 0.0.1
+
+  bundle-name@4.1.0:
+    dependencies:
+      run-applescript: 7.1.0
+
+  concat-map@0.0.1: {}
+
+  cross-spawn@7.0.6:
+    dependencies:
+      path-key: 3.1.1
+      shebang-command: 2.0.0
+      which: 2.0.2
+
+  cuint@0.2.2: {}
+
+  default-browser-id@5.0.1: {}
+
+  default-browser@5.4.0:
+    dependencies:
+      bundle-name: 4.1.0
+      default-browser-id: 5.0.1
+
+  define-lazy-prop@3.0.0: {}
+
+  dom-serializer@2.0.0:
+    dependencies:
+      domelementtype: 2.3.0
+      domhandler: 5.0.3
+      entities: 4.5.0
+
+  domelementtype@2.3.0: {}
+
+  domhandler@5.0.3:
+    dependencies:
+      domelementtype: 2.3.0
+
+  domutils@3.2.2:
+    dependencies:
+      dom-serializer: 2.0.0
+      domelementtype: 2.3.0
+      domhandler: 5.0.3
+
+  entities@4.5.0: {}
+
+  entities@6.0.1: {}
+
+  esbuild@0.27.2:
+    optionalDependencies:
+      '@esbuild/aix-ppc64': 0.27.2
+      '@esbuild/android-arm': 0.27.2
+      '@esbuild/android-arm64': 0.27.2
+      '@esbuild/android-x64': 0.27.2
+      '@esbuild/darwin-arm64': 0.27.2
+      '@esbuild/darwin-x64': 0.27.2
+      '@esbuild/freebsd-arm64': 0.27.2
+      '@esbuild/freebsd-x64': 0.27.2
+      '@esbuild/linux-arm': 0.27.2
+      '@esbuild/linux-arm64': 0.27.2
+      '@esbuild/linux-ia32': 0.27.2
+      '@esbuild/linux-loong64': 0.27.2
+      '@esbuild/linux-mips64el': 0.27.2
+      '@esbuild/linux-ppc64': 0.27.2
+      '@esbuild/linux-riscv64': 0.27.2
+      '@esbuild/linux-s390x': 0.27.2
+      '@esbuild/linux-x64': 0.27.2
+      '@esbuild/netbsd-arm64': 0.27.2
+      '@esbuild/netbsd-x64': 0.27.2
+      '@esbuild/openbsd-arm64': 0.27.2
+      '@esbuild/openbsd-x64': 0.27.2
+      '@esbuild/openharmony-arm64': 0.27.2
+      '@esbuild/sunos-x64': 0.27.2
+      '@esbuild/win32-arm64': 0.27.2
+      '@esbuild/win32-ia32': 0.27.2
+      '@esbuild/win32-x64': 0.27.2
+
+  fdir@6.5.0(picomatch@4.0.3):
+    optionalDependencies:
+      picomatch: 4.0.3
+
+  fsevents@2.3.3:
+    optional: true
+
+  htmlparser2@10.0.0:
+    dependencies:
+      domelementtype: 2.3.0
+      domhandler: 5.0.3
+      domutils: 3.2.2
+      entities: 6.0.1
+
+  import-meta-resolve@4.2.0: {}
+
+  is-docker@3.0.0: {}
+
+  is-inside-container@1.0.0:
+    dependencies:
+      is-docker: 3.0.0
+
+  is-wsl@3.1.0:
+    dependencies:
+      is-inside-container: 1.0.0
+
+  isexe@2.0.0: {}
+
+  magic-string@0.30.21:
+    dependencies:
+      '@jridgewell/sourcemap-codec': 1.5.5
+
+  make-dir@3.1.0:
+    dependencies:
+      semver: 6.3.1
+
+  mime@2.5.2: {}
+
+  minimatch@3.0.8:
+    dependencies:
+      brace-expansion: 1.1.12
+
+  mrmime@2.0.1: {}
+
+  nanoid@3.3.11: {}
+
+  open@10.2.0:
+    dependencies:
+      default-browser: 5.4.0
+      define-lazy-prop: 3.0.0
+      is-inside-container: 1.0.0
+      wsl-utils: 0.1.0
+
+  path-key@3.1.1: {}
+
+  picocolors@1.1.1: {}
+
+  picomatch@4.0.3: {}
+
+  postcss-url@10.1.3(postcss@8.5.6):
+    dependencies:
+      make-dir: 3.1.0
+      mime: 2.5.2
+      minimatch: 3.0.8
+      postcss: 8.5.6
+      xxhashjs: 0.2.2
+
+  postcss@8.5.6:
+    dependencies:
+      nanoid: 3.3.11
+      picocolors: 1.1.1
+      source-map-js: 1.2.1
+
+  rollup@4.54.0:
+    dependencies:
+      '@types/estree': 1.0.8
+    optionalDependencies:
+      '@rollup/rollup-android-arm-eabi': 4.54.0
+      '@rollup/rollup-android-arm64': 4.54.0
+      '@rollup/rollup-darwin-arm64': 4.54.0
+      '@rollup/rollup-darwin-x64': 4.54.0
+      '@rollup/rollup-freebsd-arm64': 4.54.0
+      '@rollup/rollup-freebsd-x64': 4.54.0
+      '@rollup/rollup-linux-arm-gnueabihf': 4.54.0
+      '@rollup/rollup-linux-arm-musleabihf': 4.54.0
+      '@rollup/rollup-linux-arm64-gnu': 4.54.0
+      '@rollup/rollup-linux-arm64-musl': 4.54.0
+      '@rollup/rollup-linux-loong64-gnu': 4.54.0
+      '@rollup/rollup-linux-ppc64-gnu': 4.54.0
+      '@rollup/rollup-linux-riscv64-gnu': 4.54.0
+      '@rollup/rollup-linux-riscv64-musl': 4.54.0
+      '@rollup/rollup-linux-s390x-gnu': 4.54.0
+      '@rollup/rollup-linux-x64-gnu': 4.54.0
+      '@rollup/rollup-linux-x64-musl': 4.54.0
+      '@rollup/rollup-openharmony-arm64': 4.54.0
+      '@rollup/rollup-win32-arm64-msvc': 4.54.0
+      '@rollup/rollup-win32-ia32-msvc': 4.54.0
+      '@rollup/rollup-win32-x64-gnu': 4.54.0
+      '@rollup/rollup-win32-x64-msvc': 4.54.0
+      fsevents: 2.3.3
+
+  run-applescript@7.1.0: {}
+
+  semver@6.3.1: {}
+
+  shebang-command@2.0.0:
+    dependencies:
+      shebang-regex: 3.0.0
+
+  shebang-regex@3.0.0: {}
+
+  source-map-js@1.2.1: {}
+
+  systemjs@6.15.1: {}
+
+  tinyglobby@0.2.15:
+    dependencies:
+      fdir: 6.5.0(picomatch@4.0.3)
+      picomatch: 4.0.3
+
+  typescript@5.9.3: {}
+
+  vite-plugin-monkey@7.1.8(postcss@8.5.6)(vite@7.3.0):
+    dependencies:
+      acorn: 8.15.0
+      acorn-walk: 8.3.4
+      cross-spawn: 7.0.6
+      htmlparser2: 10.0.0
+      import-meta-resolve: 4.2.0
+      magic-string: 0.30.21
+      mrmime: 2.0.1
+      open: 10.2.0
+      picocolors: 1.1.1
+      postcss-url: 10.1.3(postcss@8.5.6)
+      systemjs: 6.15.1
+    optionalDependencies:
+      vite: 7.3.0
+    transitivePeerDependencies:
+      - postcss
+
+  vite@7.3.0:
+    dependencies:
+      esbuild: 0.27.2
+      fdir: 6.5.0(picomatch@4.0.3)
+      picomatch: 4.0.3
+      postcss: 8.5.6
+      rollup: 4.54.0
+      tinyglobby: 0.2.15
+    optionalDependencies:
+      fsevents: 2.3.3
+
+  which@2.0.2:
+    dependencies:
+      isexe: 2.0.0
+
+  wsl-utils@0.1.0:
+    dependencies:
+      is-wsl: 3.1.0
+
+  xxhashjs@0.2.2:
+    dependencies:
+      cuint: 0.2.2

monkey/src/main.ts

@@ -0,0 +1,146 @@
+import './style.css'
+
+// Get current video URL
+// yt-dlp can handle all URLs directly, so we just return the current URL
+function getVideoUrl(): string | null {
+  return window.location.href
+}
+
+// Temporarily hide button
+function hideButtonTemporarily(): void {
+  const container = document.getElementById('vidbee-download-btn')
+  if (container) {
+    container.classList.add('vidbee-hidden')
+    // Auto restore after 5 seconds
+    setTimeout(() => {
+      if (container) {
+        container.classList.remove('vidbee-hidden')
+      }
+    }, 5000)
+  }
+}
+
+// Create VidBee download button
+function createVidBeeButton(): void {
+  // Check if button already exists
+  if (document.getElementById('vidbee-download-btn')) {
+    return
+  }
+
+  const videoUrl = getVideoUrl()
+  if (!videoUrl) {
+    return
+  }
+
+  // Create button container
+  const container = document.createElement('div')
+  container.id = 'vidbee-download-btn'
+  container.className = 'vidbee-download-container'
+
+  // Create main download button
+  const button = document.createElement('button')
+  button.className = 'vidbee-download-button'
+  button.setAttribute('aria-label', 'Download with VidBee')
+  button.innerHTML = `
+    <svg width="16" height="16" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="2">
+      <path d="M21 15v4a2 2 0 0 1-2 2H5a2 2 0 0 1-2-2v-4"></path>
+      <polyline points="7 10 12 15 17 10"></polyline>
+      <line x1="12" y1="15" x2="12" y2="3"></line>
+    </svg>
+    <span class="vidbee-tooltip">Download with VidBee</span>
+  `
+
+  // Create close button
+  const closeButton = document.createElement('button')
+  closeButton.className = 'vidbee-close-button'
+  closeButton.setAttribute('aria-label', 'Hide button')
+  closeButton.innerHTML = `
+    <svg width="10" height="10" viewBox="0 0 24 24" fill="none" stroke="currentColor" stroke-width="3">
+      <line x1="18" y1="6" x2="6" y2="18"></line>
+      <line x1="6" y1="6" x2="18" y2="18"></line>
+    </svg>
+    <span class="vidbee-tooltip">Hide</span>
+  `
+
+  // Handle close button click - temporarily hide
+  closeButton.addEventListener('click', (e) => {
+    e.stopPropagation()
+    hideButtonTemporarily()
+  })
+
+  let clickTimer: number | null = null
+  let clickCount = 0
+
+  // Handle main button click event - single click for download
+  button.addEventListener('click', () => {
+    clickCount++
+
+    if (clickCount === 1) {
+      clickTimer = window.setTimeout(() => {
+        // Single click - trigger download
+        const vidbeeUrl = `vidbee://download?url=${encodeURIComponent(videoUrl)}`
+        window.location.href = vidbeeUrl
+        clickCount = 0
+      }, 300)
+    } else if (clickCount === 2) {
+      // Double click - temporarily hide
+      if (clickTimer !== null) {
+        clearTimeout(clickTimer)
+      }
+      clickCount = 0
+      hideButtonTemporarily()
+    }
+  })
+
+  // Assemble container
+  container.appendChild(button)
+  container.appendChild(closeButton)
+
+  // Insert container directly to body (fixed position)
+  document.body.appendChild(container)
+}
+
+// Initialize when page loads
+function init(): void {
+  // Wait for page to fully load
+  if (document.readyState === 'loading') {
+    document.addEventListener('DOMContentLoaded', createVidBeeButton)
+  } else {
+    createVidBeeButton()
+  }
+
+  // Handle SPA navigation (when navigating between videos on sites like YouTube, Bilibili, etc.)
+  let lastUrl = location.href
+  let urlCheckTimer: number | null = null
+
+  const checkUrlChange = () => {
+    const currentUrl = location.href
+    if (currentUrl !== lastUrl) {
+      lastUrl = currentUrl
+      // Remove old button and create new one
+      const oldButton = document.getElementById('vidbee-download-btn')
+      if (oldButton) {
+        oldButton.remove()
+      }
+      // Wait a bit for the page to update (different sites have different update speeds)
+      const hostname = window.location.hostname
+      const delay = hostname.includes('bilibili.com') ? 800 : 500
+      setTimeout(createVidBeeButton, delay)
+    }
+  }
+
+  // Use MutationObserver for DOM changes (works for most SPA sites)
+  new MutationObserver(() => {
+    if (urlCheckTimer !== null) {
+      clearTimeout(urlCheckTimer)
+    }
+    urlCheckTimer = window.setTimeout(checkUrlChange, 100)
+  }).observe(document.body, { childList: true, subtree: true })
+
+  // Also listen to popstate for browser navigation
+  window.addEventListener('popstate', () => {
+    setTimeout(checkUrlChange, 300)
+  })
+}
+
+init()

monkey/src/style.css

@@ -0,0 +1,169 @@
+/* VidBee Download Button Container */
+.vidbee-download-container {
+  position: fixed;
+  bottom: 16px;
+  right: 16px;
+  z-index: 9999;
+  transition: all 0.2s ease;
+  overflow: visible;
+}
+
+/* Hidden state */
+.vidbee-download-container.vidbee-hidden {
+  opacity: 0;
+  pointer-events: none;
+  transform: scale(0);
+}
+
+/* Main Download Button */
+.vidbee-download-button {
+  position: relative;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 36px;
+  height: 36px;
+  padding: 0;
+  background: rgba(0, 0, 0, 0.5);
+  backdrop-filter: blur(8px);
+  -webkit-backdrop-filter: blur(8px);
+  color: rgba(255, 255, 255, 0.8);
+  border: 1px solid rgba(255, 255, 255, 0.1);
+  border-radius: 50%;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.2);
+  cursor: pointer;
+  font-size: 0;
+  transition: all 0.2s ease;
+  opacity: 0.6;
+  overflow: visible;
+}
+
+.vidbee-download-button:hover {
+  opacity: 1;
+  background: rgba(0, 0, 0, 0.7);
+  border-color: rgba(255, 255, 255, 0.2);
+  box-shadow: 0 4px 12px rgba(0, 0, 0, 0.3);
+  transform: scale(1.1);
+}
+
+.vidbee-download-button:active {
+  transform: scale(0.95);
+}
+
+.vidbee-download-button svg {
+  flex-shrink: 0;
+  stroke: currentColor;
+  width: 16px;
+  height: 16px;
+}
+
+/* Tooltip */
+.vidbee-tooltip {
+  position: absolute;
+  right: calc(100% + 8px);
+  top: 50%;
+  padding: 6px 10px;
+  background: rgba(0, 0, 0, 0.9);
+  backdrop-filter: blur(8px);
+  -webkit-backdrop-filter: blur(8px);
+  color: white;
+  font-size: 12px;
+  font-weight: 500;
+  white-space: nowrap;
+  border-radius: 4px;
+  box-shadow: 0 2px 8px rgba(0, 0, 0, 0.3);
+  opacity: 0;
+  pointer-events: none;
+  transition: opacity 0.2s ease, transform 0.2s ease;
+  transform: translateY(-50%) translateX(4px);
+  z-index: 10000;
+  font-family: -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, 'Helvetica Neue', Arial, sans-serif;
+  line-height: 1;
+}
+
+.vidbee-tooltip::after {
+  content: '';
+  position: absolute;
+  left: 100%;
+  top: 50%;
+  transform: translateY(-50%);
+  border: 4px solid transparent;
+  border-left-color: rgba(0, 0, 0, 0.9);
+}
+
+.vidbee-download-button:hover .vidbee-tooltip {
+  opacity: 1;
+  transform: translateY(-50%) translateX(0);
+}
+
+/* Close Button - Hidden by default */
+.vidbee-close-button {
+  position: absolute;
+  top: -6px;
+  right: -6px;
+  display: flex;
+  align-items: center;
+  justify-content: center;
+  width: 18px;
+  height: 18px;
+  padding: 0;
+  background: rgba(255, 77, 77, 0.9);
+  backdrop-filter: blur(4px);
+  -webkit-backdrop-filter: blur(4px);
+  color: white;
+  border: 1px solid rgba(255, 255, 255, 0.2);
+  border-radius: 50%;
+  box-shadow: 0 2px 4px rgba(0, 0, 0, 0.3);
+  cursor: pointer;
+  font-size: 0;
+  transition: all 0.2s ease;
+  z-index: 1;
+  opacity: 0;
+  pointer-events: none;
+  overflow: visible;
+}
+
+/* Show close button on container hover */
+.vidbee-download-container:hover .vidbee-close-button {
+  opacity: 1;
+  pointer-events: auto;
+}
+
+.vidbee-close-button:hover {
+  background: rgba(255, 77, 77, 1);
+  transform: scale(1.15);
+  box-shadow: 0 3px 6px rgba(0, 0, 0, 0.4);
+}
+
+.vidbee-close-button:active {
+  transform: scale(0.9);
+}
+
+.vidbee-close-button svg {
+  flex-shrink: 0;
+  stroke: currentColor;
+  width: 10px;
+  height: 10px;
+}
+
+/* Close button tooltip positioning */
+.vidbee-close-button .vidbee-tooltip {
+  right: calc(100% + 6px);
+  top: 50%;
+  left: auto;
+  transform: translateY(-50%) translateX(4px);
+}
+
+.vidbee-close-button .vidbee-tooltip::after {
+  left: 100%;
+  top: 50%;
+  right: auto;
+  transform: translateY(-50%);
+  border-left-color: rgba(0, 0, 0, 0.9);
+  border-top-color: transparent;
+}
+
+.vidbee-download-container:hover .vidbee-close-button:hover .vidbee-tooltip {
+  opacity: 1;
+  transform: translateY(-50%) translateX(0);
+}

monkey/src/vite-env.d.ts

@@ -0,0 +1,4 @@
+/// <reference types="vite/client" />
+/// <reference types="vite-plugin-monkey/client" />
+//// <reference types="vite-plugin-monkey/global" />
+/// <reference types="vite-plugin-monkey/style" />

monkey/tsconfig.json

@@ -0,0 +1,24 @@
+{
+  "compilerOptions": {
+    "target": "ES2020",
+    "useDefineForClassFields": true,
+    "module": "ESNext",
+    "lib": ["ES2020", "DOM", "DOM.Iterable"],
+    "skipLibCheck": true,
+
+    /* Bundler mode */
+    "moduleResolution": "bundler",
+    "allowImportingTsExtensions": true,
+    "isolatedModules": true,
+    "moduleDetection": "force",
+    "noEmit": true,
+
+    /* Linting */
+    "strict": true,
+    "noUnusedLocals": true,
+    "noUnusedParameters": true,
+    "noFallthroughCasesInSwitch": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["src"]
+}

monkey/tsconfig.node.json

@@ -0,0 +1,13 @@
+{
+  "compilerOptions": {
+    "composite": true,
+    "tsBuildInfoFile": "./node_modules/.tmp/tsconfig.node.tsbuildinfo",
+    "skipLibCheck": true,
+    "module": "ESNext",
+    "moduleResolution": "bundler",
+    "strict": true,
+    "noEmit": true,
+    "noUncheckedSideEffectImports": true
+  },
+  "include": ["vite.config.ts"]
+}

monkey/vite.config.ts

@@ -0,0 +1,67 @@
+import { defineConfig } from 'vite'
+import monkey from 'vite-plugin-monkey'
+
+// https://vitejs.dev/config/
+export default defineConfig({
+  plugins: [
+    monkey({
+      entry: 'src/main.ts',
+      userscript: {
+        icon: 'https://vidbee.org/favicon.svg',
+        namespace: 'vidbee',
+        match: [
+          // YouTube
+          'https://www.youtube.com/*',
+          'https://youtube.com/*',
+          'https://music.youtube.com/*',
+          // Bilibili (哔哩哔哩)
+          'https://www.bilibili.com/*',
+          'https://bilibili.com/*',
+          // TikTok
+          'https://www.tiktok.com/*',
+          'https://tiktok.com/*',
+          // Vimeo
+          'https://vimeo.com/*',
+          'https://www.vimeo.com/*',
+          // Dailymotion
+          'https://www.dailymotion.com/*',
+          'https://dailymotion.com/*',
+          // Twitch
+          'https://www.twitch.tv/*',
+          'https://twitch.tv/*',
+          // Twitter/X
+          'https://twitter.com/*',
+          'https://www.twitter.com/*',
+          'https://x.com/*',
+          'https://www.x.com/*',
+          // Instagram
+          'https://www.instagram.com/*',
+          'https://instagram.com/*',
+          // Facebook
+          'https://www.facebook.com/*',
+          'https://facebook.com/*',
+          'https://fb.com/*',
+          'https://www.fb.com/*',
+          // Reddit
+          'https://www.reddit.com/*',
+          'https://reddit.com/*',
+          // SoundCloud
+          'https://soundcloud.com/*',
+          'https://www.soundcloud.com/*',
+          // NicoNico
+          'https://www.nicovideo.jp/*',
+          'https://nicovideo.jp/*',
+          // Kick
+          'https://kick.com/*',
+          'https://www.kick.com/*',
+          // Bandcamp
+          'https://bandcamp.com/*',
+          'https://*.bandcamp.com/*',
+          // Mixcloud
+          'https://www.mixcloud.com/*',
+          'https://mixcloud.com/*'
+        ]
+      }
+    })
+  ]
+})

package.json

@@ -1,6 +1,6 @@
 {
   "name": "vidbee",
-  "version": "0.1.0",
+  "version": "1.1.6",
   "description": "A modern Electron application for downloading videos and audios",
   "main": "./out/main/index.js",
   "author": "VidBee",
@@ -11,14 +11,16 @@
     "typecheck:web": "tsc --noEmit -p tsconfig.web.json --composite false",
     "typecheck": "pnpm run typecheck:node && pnpm run typecheck:web",
     "start": "electron-vite preview",
-    "dev": "electron-vite dev",
-    "build": "pnpm run typecheck && electron-vite build",
-    "postinstall": "electron-builder install-app-deps",
-    "build:unpack": "pnpm run build && electron-builder --dir",
-    "build:win": "pnpm run build && electron-builder --win",
-    "build:mac": "pnpm run build && electron-builder --mac",
-    "build:linux": "pnpm run build && electron-builder --linux",
-    "release": "pnpm run check && bumpp"
+    "dev": "node scripts/set-console-encoding.js && electron-vite dev",
+    "build": "electron-vite build",
+    "setup": "node scripts/setup-dev-binaries.js",
+    "postinstall": "node scripts/setup-dev-binaries.js && electron-builder install-app-deps",
+    "build:unpack": "pnpm run setup && pnpm run build && electron-builder --dir",
+    "build:win": "pnpm run setup && node scripts/check-ytdlp.js win && pnpm run build && electron-builder --win",
+    "build:mac": "pnpm run setup && node scripts/check-ytdlp.js mac && pnpm run build && electron-builder --mac --x64 --arm64",
+    "build:linux": "pnpm run setup && node scripts/check-ytdlp.js linux && pnpm run build && electron-builder --linux",
+    "release": "git checkout main && git pull && pnpm run check && bumpp",
+    "db:generate": "drizzle-kit generate"
   },
   "dependencies": {
     "@electron-toolkit/preload": "^3.0.2",
@@ -26,9 +28,12 @@
     "@hookform/resolvers": "^5.2.2",
     "@radix-ui/react-accordion": "^1.2.12",
     "@radix-ui/react-checkbox": "^1.3.3",
+    "@radix-ui/react-context-menu": "^2.2.16",
     "@radix-ui/react-dialog": "^1.1.15",
     "@radix-ui/react-dropdown-menu": "^2.1.16",
+    "@radix-ui/react-hover-card": "^1.1.15",
     "@radix-ui/react-label": "^2.1.7",
+    "@radix-ui/react-popover": "^1.1.15",
     "@radix-ui/react-progress": "^1.1.7",
     "@radix-ui/react-scroll-area": "^1.2.10",
     "@radix-ui/react-select": "^2.2.6",
@@ -40,13 +45,17 @@
     "@svgr/core": "^8.1.0",
     "@svgr/plugin-jsx": "^8.1.0",
     "@tailwindcss/vite": "^4.1.13",
+    "better-sqlite3": "^12.4.1",
     "class-variance-authority": "^0.7.1",
     "clsx": "^2.1.1",
+    "cmdk": "^1.1.1",
     "dayjs": "^1.11.18",
+    "drizzle-orm": "^0.44.7",
     "electron-ipc-decorator": "^0.2.0",
     "electron-log": "^5.4.3",
     "electron-store": "^11.0.2",
     "electron-updater": "^6.3.9",
+    "flag-icons": "^7.5.0",
     "i18next": "^25.5.3",
     "jotai": "^2.15.0",
     "lucide-react": "^0.544.0",
@@ -54,9 +63,11 @@
     "react-hook-form": "^7.63.0",
     "react-i18next": "^16.0.0",
     "react-router": "^7.9.4",
+    "rss-parser": "^3.13.0",
     "sonner": "^2.0.7",
     "tailwind-merge": "^3.3.1",
     "tailwindcss": "^4.1.13",
+    "tw-animate-css": "^1.4.0",
     "yt-dlp-wrap-plus": "^2.3.20",
     "zod": "^4.1.11"
   },
@@ -69,6 +80,7 @@
     "@types/react-dom": "^19.1.9",
     "@vitejs/plugin-react": "^5.0.3",
     "bumpp": "^10.3.1",
+    "drizzle-kit": "^0.31.7",
     "electron": "^38.1.2",
     "electron-builder": "^25.1.8",
     "electron-vite": "^4.0.1",

resources/.gitignore

@@ -2,8 +2,13 @@
 yt-dlp.exe
 yt-dlp_macos
 yt-dlp_linux
+ffmpeg.exe
+ffmpeg_macos
+ffmpeg_linux
+ffmpeg
+deno.exe
+deno
 
 # But keep the README
 !README.md
 !.gitignore
-

resources/README.md

@@ -48,8 +48,44 @@ Invoke-WebRequest -Uri "https://github.com/yt-dlp/yt-dlp/releases/latest/downloa
 Invoke-WebRequest -Uri "https://github.com/yt-dlp/yt-dlp/releases/latest/download/yt-dlp" -OutFile "resources/yt-dlp_linux"
 ```
 
+## ffmpeg Binaries
+
+ffmpeg is required for merging audio/video streams and audio extraction. Bundle the matching binary for each target platform:
+
+### Required Files
+
+1. **Windows**: `ffmpeg.exe`
+2. **macOS**: `ffmpeg_macos`
+3. **Linux**: `ffmpeg_linux`
+
+### How to Download
+
+- **Windows / Linux**: Grab static builds from <https://ffmpeg.org/download.html> (or <https://github.com/yt-dlp/FFmpeg-Builds/releases>) and rename the binary to match the filenames above.
+- **macOS**: Download the `ffmpeg-arm64*.zip` and `ffmpeg-x86_64*.zip` assets from <https://github.com/eko5624/mpv-mac/releases/latest>. Extract them and merge into a universal binary with `lipo -create`, then save the result as `resources/ffmpeg_macos`.
+- On macOS/Linux ensure the final binary is executable: `chmod +x resources/ffmpeg_macos` (or `ffmpeg_linux`).
+
 ### Note
 
-- If you don't place binaries here, the app will attempt to download them at runtime
-- The app will automatically use the bundled version if available
-- File sizes: ~10-15 MB per binary
+- Bundled binaries are required for Windows builds. On macOS/Linux the app can also use ffmpeg/yt-dlp from the system PATH.
+- You can override the lookup paths via the `YTDLP_PATH` or `FFMPEG_PATH` environment variables if you prefer custom locations.
+- File sizes: ~10-15 MB per yt-dlp binary, ~40-80 MB per ffmpeg binary
+
+## JS Runtime (Deno)
+
+yt-dlp uses an external JS runtime (Deno by default) for some extractors. Bundle a Deno binary so the app can run without system dependencies.
+
+### Required Files
+
+1. **Windows**: `deno.exe`
+2. **macOS**: `deno`
+3. **Linux**: `deno`
+
+### How to Download
+
+- Visit: <https://github.com/denoland/deno/releases/latest>
+- Download the matching platform archive and extract the `deno` (or `deno.exe`) binary into `resources/`.
+- On macOS/Linux ensure the file is executable: `chmod +x resources/deno`
+
+### Note
+
+- You can override the runtime path via `YTDLP_JS_RUNTIME_PATH` if needed.

resources/drizzle/0000_swift_aaron_stack.sql

@@ -0,0 +1,66 @@
+CREATE TABLE `download_history` (
+	`id` text PRIMARY KEY NOT NULL,
+	`url` text NOT NULL,
+	`title` text NOT NULL,
+	`thumbnail` text,
+	`type` text NOT NULL,
+	`status` text NOT NULL,
+	`download_path` text,
+	`saved_file_name` text,
+	`file_size` integer,
+	`duration` integer,
+	`downloaded_at` integer NOT NULL,
+	`completed_at` integer,
+	`sort_key` integer NOT NULL,
+	`error` text,
+	`description` text,
+	`channel` text,
+	`uploader` text,
+	`view_count` integer,
+	`tags` text,
+	`origin` text,
+	`subscription_id` text,
+	`selected_format` text,
+	`playlist_id` text,
+	`playlist_title` text,
+	`playlist_index` integer,
+	`playlist_size` integer
+);
+--> statement-breakpoint
+CREATE TABLE `subscription_items` (
+	`subscription_id` text NOT NULL,
+	`item_id` text NOT NULL,
+	`title` text NOT NULL,
+	`url` text NOT NULL,
+	`published_at` integer NOT NULL,
+	`thumbnail` text,
+	`added` integer NOT NULL,
+	`download_id` text,
+	`created_at` integer NOT NULL,
+	`updated_at` integer NOT NULL,
+	PRIMARY KEY(`subscription_id`, `item_id`)
+);
+--> statement-breakpoint
+CREATE INDEX `subscription_items_subscription_idx` ON `subscription_items` (`subscription_id`);--> statement-breakpoint
+CREATE TABLE `subscriptions` (
+	`id` text PRIMARY KEY NOT NULL,
+	`title` text NOT NULL,
+	`source_url` text NOT NULL,
+	`feed_url` text NOT NULL,
+	`platform` text NOT NULL,
+	`keywords` text NOT NULL,
+	`tags` text NOT NULL,
+	`only_latest` integer NOT NULL,
+	`enabled` integer NOT NULL,
+	`cover_url` text,
+	`latest_video_title` text,
+	`latest_video_published_at` integer,
+	`last_checked_at` integer,
+	`last_success_at` integer,
+	`status` text NOT NULL,
+	`last_error` text,
+	`created_at` integer NOT NULL,
+	`updated_at` integer NOT NULL,
+	`download_directory` text,
+	`naming_template` text
+);

resources/drizzle/meta/0000_snapshot.json

@@ -0,0 +1,451 @@
+{
+  "version": "6",
+  "dialect": "sqlite",
+  "id": "91501763-7554-435d-91d8-382c52ee65e4",
+  "prevId": "00000000-0000-0000-0000-000000000000",
+  "tables": {
+    "download_history": {
+      "name": "download_history",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "url": {
+          "name": "url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "title": {
+          "name": "title",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "thumbnail": {
+          "name": "thumbnail",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "type": {
+          "name": "type",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "download_path": {
+          "name": "download_path",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "saved_file_name": {
+          "name": "saved_file_name",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "file_size": {
+          "name": "file_size",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "duration": {
+          "name": "duration",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "downloaded_at": {
+          "name": "downloaded_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "completed_at": {
+          "name": "completed_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "sort_key": {
+          "name": "sort_key",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "error": {
+          "name": "error",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "description": {
+          "name": "description",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "channel": {
+          "name": "channel",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "uploader": {
+          "name": "uploader",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "view_count": {
+          "name": "view_count",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "tags": {
+          "name": "tags",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "origin": {
+          "name": "origin",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "subscription_id": {
+          "name": "subscription_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "selected_format": {
+          "name": "selected_format",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "playlist_id": {
+          "name": "playlist_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "playlist_title": {
+          "name": "playlist_title",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "playlist_index": {
+          "name": "playlist_index",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "playlist_size": {
+          "name": "playlist_size",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "subscription_items": {
+      "name": "subscription_items",
+      "columns": {
+        "subscription_id": {
+          "name": "subscription_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "item_id": {
+          "name": "item_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "title": {
+          "name": "title",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "url": {
+          "name": "url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "published_at": {
+          "name": "published_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "thumbnail": {
+          "name": "thumbnail",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "added": {
+          "name": "added",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "download_id": {
+          "name": "download_id",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        }
+      },
+      "indexes": {
+        "subscription_items_subscription_idx": {
+          "name": "subscription_items_subscription_idx",
+          "columns": ["subscription_id"],
+          "isUnique": false
+        }
+      },
+      "foreignKeys": {},
+      "compositePrimaryKeys": {
+        "subscription_items_pk": {
+          "columns": ["subscription_id", "item_id"],
+          "name": "subscription_items_pk"
+        }
+      },
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    },
+    "subscriptions": {
+      "name": "subscriptions",
+      "columns": {
+        "id": {
+          "name": "id",
+          "type": "text",
+          "primaryKey": true,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "title": {
+          "name": "title",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "source_url": {
+          "name": "source_url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "feed_url": {
+          "name": "feed_url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "platform": {
+          "name": "platform",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "keywords": {
+          "name": "keywords",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "tags": {
+          "name": "tags",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "only_latest": {
+          "name": "only_latest",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "enabled": {
+          "name": "enabled",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "cover_url": {
+          "name": "cover_url",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "latest_video_title": {
+          "name": "latest_video_title",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "latest_video_published_at": {
+          "name": "latest_video_published_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "last_checked_at": {
+          "name": "last_checked_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "last_success_at": {
+          "name": "last_success_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "status": {
+          "name": "status",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "last_error": {
+          "name": "last_error",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "created_at": {
+          "name": "created_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "updated_at": {
+          "name": "updated_at",
+          "type": "integer",
+          "primaryKey": false,
+          "notNull": true,
+          "autoincrement": false
+        },
+        "download_directory": {
+          "name": "download_directory",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        },
+        "naming_template": {
+          "name": "naming_template",
+          "type": "text",
+          "primaryKey": false,
+          "notNull": false,
+          "autoincrement": false
+        }
+      },
+      "indexes": {},
+      "foreignKeys": {},
+      "compositePrimaryKeys": {},
+      "uniqueConstraints": {},
+      "checkConstraints": {}
+    }
+  },
+  "views": {},
+  "enums": {},
+  "_meta": {
+    "schemas": {},
+    "tables": {},
+    "columns": {}
+  },
+  "internal": {
+    "indexes": {}
+  }
+}

resources/drizzle/meta/_journal.json

@@ -0,0 +1,13 @@
+{
+  "version": "7",
+  "dialect": "sqlite",
+  "entries": [
+    {
+      "idx": 0,
+      "version": "6",
+      "when": 1763176841336,
+      "tag": "0000_swift_aaron_stack",
+      "breakpoints": true
+    }
+  ]
+}

scripts/check-ytdlp.js

@@ -0,0 +1,83 @@
+#!/usr/bin/env node
+
+const fs = require('node:fs')
+const path = require('node:path')
+
+// Get platform from command line arguments
+const platform = process.argv[2]
+
+if (!platform) {
+  console.error('❌ Error: Platform argument is required!')
+  console.error('Usage: node scripts/check-ytdlp.js [win|mac|linux]')
+  process.exit(1)
+}
+
+const supportedPlatforms = ['win', 'mac', 'linux']
+
+if (!supportedPlatforms.includes(platform)) {
+  console.error('❌ Error: Invalid platform specified!')
+  console.error('Usage: node scripts/check-ytdlp.js [win|mac|linux]')
+  process.exit(1)
+}
+
+const binaries = [
+  {
+    label: 'yt-dlp',
+    filenameMap: {
+      win: 'yt-dlp.exe',
+      mac: 'yt-dlp_macos',
+      linux: 'yt-dlp_linux'
+    },
+    help: {
+      default: 'https://github.com/yt-dlp/yt-dlp/releases/latest'
+    }
+  },
+  {
+    label: 'ffmpeg',
+    filenameMap: {
+      win: 'ffmpeg.exe',
+      mac: 'ffmpeg_macos',
+      linux: 'ffmpeg_linux'
+    },
+    help: {
+      win: 'https://ffmpeg.org/download.html',
+      linux: 'https://ffmpeg.org/download.html',
+      mac: 'https://github.com/eko5624/mpv-mac/releases/latest'
+    }
+  },
+  {
+    label: 'deno',
+    filenameMap: {
+      win: 'deno.exe',
+      mac: 'deno',
+      linux: 'deno'
+    },
+    help: {
+      default: 'https://github.com/denoland/deno/releases/latest'
+    }
+  }
+]
+
+let hasMissingBinary = false
+
+for (const binary of binaries) {
+  const filename = binary.filenameMap[platform]
+  const binaryPath = path.join(__dirname, '..', 'resources', filename)
+
+  if (!fs.existsSync(binaryPath)) {
+    console.error(`❌ Error: resources/${filename} not found!`)
+    console.error(`Please download ${filename} to the resources/ directory first.`)
+    const help =
+      typeof binary.help === 'string' ? binary.help : binary.help[platform] || binary.help.default
+    if (help) {
+      console.error(`See ${help}`)
+    }
+    hasMissingBinary = true
+  } else {
+    console.log(`✅ ${filename} found in resources/ directory`)
+  }
+}
+
+if (hasMissingBinary) {
+  process.exit(1)
+}

scripts/set-console-encoding.js

@@ -0,0 +1,28 @@
+/**
+ * 设置控制台编码为 UTF-8，解决中文乱码问题
+ * 这个脚本在 Windows 上设置控制台代码页为 UTF-8
+ */
+
+const { exec } = require('node:child_process')
+const os = require('node:os')
+
+if (os.platform() === 'win32') {
+  console.log('Setting console encoding to UTF-8...')
+
+  // 设置控制台代码页为 UTF-8 (65001)
+  exec('chcp 65001', (error, stdout, stderr) => {
+    if (error) {
+      console.warn('Failed to set console code page:', error)
+      return
+    }
+
+    if (stderr) {
+      console.warn('Console code page setting warning:', stderr)
+    }
+
+    console.log('Console encoding set to UTF-8')
+    console.log('Output:', stdout)
+  })
+} else {
+  console.log('Not on Windows, no console encoding change needed')
+}

scripts/setup-dev-binaries.js

@@ -0,0 +1,604 @@
+#!/usr/bin/env node
+
+/**
+ * Development environment setup script
+ * Automatically downloads yt-dlp and ffmpeg binaries based on the current system
+ */
+
+const fs = require('node:fs')
+const path = require('node:path')
+const os = require('node:os')
+const { execSync } = require('node:child_process')
+const https = require('node:https')
+const http = require('node:http')
+
+// Configuration
+const RESOURCES_DIR = path.join(__dirname, '..', 'resources')
+const YTDLP_BASE_URL = 'https://github.com/yt-dlp/yt-dlp/releases/latest/download'
+const DENO_BASE_URL = 'https://github.com/denoland/deno/releases/latest/download'
+const GITHUB_TOKEN =
+  process.env.GITHUB_TOKEN || process.env.GH_TOKEN || process.env.GITHUB_API_TOKEN
+
+// Platform configuration
+const PLATFORM_CONFIG = {
+  win32: {
+    ytdlp: {
+      asset: 'yt-dlp.exe',
+      output: 'yt-dlp.exe'
+    },
+    ffmpeg: {
+      url: 'https://github.com/yt-dlp/FFmpeg-Builds/releases/latest/download/ffmpeg-master-latest-win64-gpl.zip',
+      innerPath: 'ffmpeg-master-latest-win64-gpl/bin/ffmpeg.exe',
+      output: 'ffmpeg.exe',
+      extract: 'unzip',
+      release: {
+        repos: ['yt-dlp/FFmpeg-Builds', 'BtbN/FFmpeg-Builds'],
+        assetPattern: /win64.*gpl.*\.zip$/i,
+        binaryName: 'ffmpeg.exe'
+      }
+    }
+  },
+  darwin: {
+    ytdlp: {
+      asset: 'yt-dlp_macos',
+      output: 'yt-dlp_macos'
+    },
+    ffmpeg: {
+      // For development, download only the architecture matching current system
+      arm64: {
+        url: 'https://github.com/eko5624/mpv-mac/releases/download/2025-10-25/ffmpeg-arm64-defd5f3f64.zip',
+        innerPath: 'ffmpeg/ffmpeg',
+        output: 'ffmpeg_macos',
+        extract: 'unzip',
+        release: {
+          repo: 'eko5624/mpv-mac',
+          assetPattern: /ffmpeg-arm64.*\.zip$/i
+        }
+      },
+      x64: {
+        url: 'https://github.com/eko5624/mpv-mac/releases/download/2025-10-25/ffmpeg-x86_64-defd5f3f64.zip',
+        innerPath: 'ffmpeg/ffmpeg',
+        output: 'ffmpeg_macos',
+        extract: 'unzip',
+        release: {
+          repo: 'eko5624/mpv-mac',
+          assetPattern: /ffmpeg-x86_64.*\.zip$/i
+        }
+      }
+    }
+  },
+  linux: {
+    ytdlp: {
+      asset: 'yt-dlp',
+      output: 'yt-dlp_linux'
+    },
+    ffmpeg: {
+      url: 'https://github.com/yt-dlp/FFmpeg-Builds/releases/latest/download/ffmpeg-master-latest-linux64-gpl.tar.xz',
+      innerPath: 'ffmpeg-master-latest-linux64-gpl/bin/ffmpeg',
+      output: 'ffmpeg_linux',
+      extract: 'tar',
+      release: {
+        repos: ['yt-dlp/FFmpeg-Builds', 'BtbN/FFmpeg-Builds'],
+        assetPattern: /linux64.*gpl.*\.tar\.xz$/i,
+        binaryName: 'ffmpeg'
+      }
+    }
+  }
+}
+
+// Utility functions
+function log(message, type = 'info') {
+  const icons = {
+    info: '📦',
+    success: '✅',
+    error: '❌',
+    warn: '⚠️',
+    download: '⬇️'
+  }
+  console.log(`${icons[type] || 'ℹ️'} ${message}`)
+}
+
+function ensureDir(dir) {
+  if (!fs.existsSync(dir)) {
+    fs.mkdirSync(dir, { recursive: true })
+  }
+}
+
+function safeUnlink(filePath) {
+  if (fs.existsSync(filePath)) {
+    fs.unlinkSync(filePath)
+  }
+}
+
+function getDownloadHeaders(url) {
+  const headers = {
+    'User-Agent': 'vidbee-setup',
+    Accept: '*/*'
+  }
+  if (GITHUB_TOKEN && /github\.com|githubusercontent\.com/.test(url)) {
+    headers.Authorization = `Bearer ${GITHUB_TOKEN}`
+  }
+  return headers
+}
+
+function downloadFile(url, dest) {
+  return new Promise((resolve, reject) => {
+    const protocol = url.startsWith('https') ? https : http
+    const file = fs.createWriteStream(dest)
+
+    const request = protocol.get(url, { headers: getDownloadHeaders(url) }, (response) => {
+      if (response.statusCode === 302 || response.statusCode === 301) {
+        // Handle redirect
+        file.close()
+        safeUnlink(dest)
+        return downloadFile(response.headers.location, dest).then(resolve).catch(reject)
+      }
+
+      if (response.statusCode !== 200) {
+        file.close()
+        safeUnlink(dest)
+        return reject(new Error(`Failed to download: ${response.statusCode}`))
+      }
+
+      response.pipe(file)
+      file.on('finish', () => {
+        file.close()
+        resolve()
+      })
+    })
+
+    request.setTimeout(30000, () => {
+      request.destroy(new Error('Download timeout'))
+    })
+
+    request.on('error', (err) => {
+      file.close()
+      safeUnlink(dest)
+      reject(err)
+    })
+  })
+}
+
+async function downloadFileWithRetry(url, dest, retries = 3, delayMs = 2000) {
+  let lastError
+  for (let attempt = 1; attempt <= retries; attempt += 1) {
+    try {
+      await downloadFile(url, dest)
+      return
+    } catch (error) {
+      lastError = error
+      safeUnlink(dest)
+      if (attempt < retries) {
+        const backoff = delayMs * attempt
+        log(`Download failed (attempt ${attempt}/${retries}): ${error.message}`, 'warn')
+        await new Promise((resolve) => setTimeout(resolve, backoff))
+      }
+    }
+  }
+  throw lastError
+}
+
+function fetchJson(url) {
+  return new Promise((resolve, reject) => {
+    const protocol = url.startsWith('https') ? https : http
+    const headers = {
+      'User-Agent': 'vidbee-setup',
+      Accept: 'application/vnd.github+json'
+    }
+    if (GITHUB_TOKEN) {
+      headers.Authorization = `Bearer ${GITHUB_TOKEN}`
+    }
+
+    protocol
+      .get(url, { headers }, (response) => {
+        if (response.statusCode === 302 || response.statusCode === 301) {
+          return fetchJson(response.headers.location).then(resolve).catch(reject)
+        }
+        if (response.statusCode !== 200) {
+          return reject(new Error(`Failed to fetch ${url}: ${response.statusCode}`))
+        }
+
+        let body = ''
+        response.on('data', (chunk) => {
+          body += chunk
+        })
+        response.on('end', () => {
+          try {
+            resolve(JSON.parse(body))
+          } catch (error) {
+            reject(new Error(`Failed to parse JSON from ${url}: ${error.message}`))
+          }
+        })
+      })
+      .on('error', (err) => {
+        reject(err)
+      })
+  })
+}
+
+function inferFfmpegInnerPath(assetName, binaryName) {
+  if (!assetName) {
+    return null
+  }
+  const match = assetName.match(/^(.*)\.(tar\.xz|zip)$/i)
+  if (!match) {
+    return null
+  }
+  return `${match[1]}/bin/${binaryName}`
+}
+
+async function resolveReleaseAsset(release) {
+  if (!release) {
+    return null
+  }
+  const repoCandidates = release.repos ?? (release.repo ? [release.repo] : [])
+  if (repoCandidates.length === 0) {
+    return null
+  }
+
+  let lastError
+  for (const repo of repoCandidates) {
+    try {
+      const data = await fetchJson(`https://api.github.com/repos/${repo}/releases/latest`)
+      const assets = Array.isArray(data.assets) ? data.assets : []
+      const match = assets.find((asset) => asset?.name && release.assetPattern.test(asset.name))
+      if (match?.browser_download_url) {
+        return { name: match.name, url: match.browser_download_url }
+      }
+      lastError = new Error(`No matching assets found in ${repo}`)
+    } catch (error) {
+      lastError = error
+    }
+  }
+
+  if (lastError) {
+    throw lastError
+  }
+  return null
+}
+
+function extractZip(zipPath, extractDir) {
+  const platform = os.platform()
+  ensureDir(extractDir)
+
+  if (platform === 'win32') {
+    // Use PowerShell Expand-Archive on Windows
+    try {
+      const zipAbsPath = path.resolve(zipPath)
+      const extractAbsDir = path.resolve(extractDir)
+      execSync(
+        `powershell -NoProfile -Command "Expand-Archive -Path '${zipAbsPath.replace(/'/g, "''")}' -DestinationPath '${extractAbsDir.replace(/'/g, "''")}' -Force"`,
+        { stdio: 'inherit' }
+      )
+    } catch (error) {
+      throw new Error(`Failed to extract zip: ${error.message}`)
+    }
+  } else {
+    // Use unzip command on macOS/Linux
+    try {
+      execSync(`unzip -q "${zipPath}" -d "${extractDir}"`, { stdio: 'inherit' })
+    } catch (error) {
+      throw new Error(`Failed to extract zip: ${error.message}`)
+    }
+  }
+}
+
+function extractTarXz(tarPath, extractDir) {
+  ensureDir(extractDir)
+  execSync(`tar -xf "${tarPath}" -C "${extractDir}"`, { stdio: 'inherit' })
+}
+
+function setExecutable(filePath) {
+  if (os.platform() !== 'win32') {
+    fs.chmodSync(filePath, 0o755)
+  }
+}
+
+function fileExists(filePath) {
+  return fs.existsSync(filePath)
+}
+
+function getDenoAssetName(platform, arch) {
+  if (platform === 'win32') {
+    if (arch === 'arm64') {
+      return 'deno-aarch64-pc-windows-msvc.zip'
+    }
+    return 'deno-x86_64-pc-windows-msvc.zip'
+  }
+  if (platform === 'darwin') {
+    if (arch === 'arm64') {
+      return 'deno-aarch64-apple-darwin.zip'
+    }
+    return 'deno-x86_64-apple-darwin.zip'
+  }
+  if (platform === 'linux') {
+    if (arch === 'arm64') {
+      return 'deno-aarch64-unknown-linux-gnu.zip'
+    }
+    return 'deno-x86_64-unknown-linux-gnu.zip'
+  }
+  return null
+}
+
+function getDenoOutputName(platform) {
+  return platform === 'win32' ? 'deno.exe' : 'deno'
+}
+
+// Main download functions
+async function downloadYtDlp(config) {
+  const { asset, output } = config.ytdlp
+  const outputPath = path.join(RESOURCES_DIR, output)
+
+  if (fileExists(outputPath)) {
+    log(`${output} already exists, skipping download`, 'info')
+    return
+  }
+
+  log(`Downloading ${asset}...`, 'download')
+  const url = `${YTDLP_BASE_URL}/${asset}`
+  const tempPath = path.join(RESOURCES_DIR, `.${asset}.tmp`)
+
+  try {
+    await downloadFileWithRetry(url, tempPath)
+    fs.renameSync(tempPath, outputPath)
+    setExecutable(outputPath)
+    log(`Downloaded ${output} successfully`, 'success')
+  } catch (error) {
+    if (fs.existsSync(tempPath)) {
+      fs.unlinkSync(tempPath)
+    }
+    throw error
+  }
+}
+
+async function downloadFfmpegWindows(config) {
+  const { url: fallbackUrl, innerPath: fallbackInnerPath, output, release } = config.ffmpeg
+  const outputPath = path.join(RESOURCES_DIR, output)
+
+  if (fileExists(outputPath)) {
+    log(`${output} already exists, skipping download`, 'info')
+    return
+  }
+
+  log(`Downloading ffmpeg for Windows...`, 'download')
+  const tempZip = path.join(RESOURCES_DIR, 'ffmpeg-temp.zip')
+  const extractDir = path.join(RESOURCES_DIR, 'ffmpeg-temp')
+  let downloadUrl = fallbackUrl
+  let innerPath = fallbackInnerPath
+
+  if (release) {
+    try {
+      const resolved = await resolveReleaseAsset(release)
+      if (resolved) {
+        downloadUrl = resolved.url
+        const inferred = inferFfmpegInnerPath(resolved.name, release.binaryName ?? 'ffmpeg.exe')
+        if (inferred) {
+          innerPath = inferred
+        }
+      }
+    } catch (error) {
+      log(`Failed to resolve latest ffmpeg asset: ${error.message}`, 'warn')
+    }
+  }
+
+  try {
+    await downloadFileWithRetry(downloadUrl, tempZip)
+    log('Extracting ffmpeg...', 'info')
+    extractZip(tempZip, extractDir)
+
+    const sourcePath = path.join(extractDir, innerPath.replace(/\\/g, path.sep))
+    if (!fileExists(sourcePath)) {
+      throw new Error(`ffmpeg binary not found at ${sourcePath}`)
+    }
+
+    fs.copyFileSync(sourcePath, outputPath)
+    log(`Downloaded ${output} successfully`, 'success')
+
+    // Cleanup
+    fs.unlinkSync(tempZip)
+    fs.rmSync(extractDir, { recursive: true, force: true })
+  } catch (error) {
+    if (fs.existsSync(tempZip)) fs.unlinkSync(tempZip)
+    if (fs.existsSync(extractDir)) fs.rmSync(extractDir, { recursive: true, force: true })
+    throw error
+  }
+}
+
+async function downloadFfmpegMac(config) {
+  const arch = os.arch()
+  const ffmpegConfig = config.ffmpeg[arch === 'arm64' ? 'arm64' : 'x64']
+
+  if (!ffmpegConfig) {
+    throw new Error(`Unsupported architecture: ${arch}`)
+  }
+
+  const { url: fallbackUrl, innerPath, output, release } = ffmpegConfig
+  const outputPath = path.join(RESOURCES_DIR, output)
+
+  if (fileExists(outputPath)) {
+    log(`${output} already exists, skipping download`, 'info')
+    return
+  }
+
+  log(`Downloading ffmpeg for macOS (${arch})...`, 'download')
+  const tempZip = path.join(RESOURCES_DIR, 'ffmpeg-temp.zip')
+  const extractDir = path.join(RESOURCES_DIR, 'ffmpeg-temp')
+  let downloadUrl = fallbackUrl
+
+  if (release) {
+    try {
+      const resolved = await resolveReleaseAsset(release)
+      if (resolved) {
+        downloadUrl = resolved.url
+      }
+    } catch (error) {
+      log(`Failed to resolve latest ffmpeg asset: ${error.message}`, 'warn')
+    }
+  }
+
+  try {
+    await downloadFileWithRetry(downloadUrl, tempZip)
+    log('Extracting ffmpeg...', 'info')
+    extractZip(tempZip, extractDir)
+
+    const sourcePath = path.join(extractDir, innerPath)
+    if (!fileExists(sourcePath)) {
+      throw new Error(`ffmpeg binary not found at ${sourcePath}`)
+    }
+
+    fs.copyFileSync(sourcePath, outputPath)
+    setExecutable(outputPath)
+    log(`Downloaded ${output} successfully`, 'success')
+
+    // Cleanup
+    fs.unlinkSync(tempZip)
+    fs.rmSync(extractDir, { recursive: true, force: true })
+  } catch (error) {
+    if (fs.existsSync(tempZip)) fs.unlinkSync(tempZip)
+    if (fs.existsSync(extractDir)) fs.rmSync(extractDir, { recursive: true, force: true })
+    throw error
+  }
+}
+
+async function downloadFfmpegLinux(config) {
+  const { url: fallbackUrl, innerPath: fallbackInnerPath, output, release } = config.ffmpeg
+  const outputPath = path.join(RESOURCES_DIR, output)
+
+  if (fileExists(outputPath)) {
+    log(`${output} already exists, skipping download`, 'info')
+    return
+  }
+
+  log(`Downloading ffmpeg for Linux...`, 'download')
+  const tempTar = path.join(RESOURCES_DIR, 'ffmpeg-temp.tar.xz')
+  const extractDir = path.join(RESOURCES_DIR, 'ffmpeg-temp')
+  let downloadUrl = fallbackUrl
+  let innerPath = fallbackInnerPath
+
+  if (release) {
+    try {
+      const resolved = await resolveReleaseAsset(release)
+      if (resolved) {
+        downloadUrl = resolved.url
+        const inferred = inferFfmpegInnerPath(resolved.name, release.binaryName ?? 'ffmpeg')
+        if (inferred) {
+          innerPath = inferred
+        }
+      }
+    } catch (error) {
+      log(`Failed to resolve latest ffmpeg asset: ${error.message}`, 'warn')
+    }
+  }
+
+  try {
+    await downloadFileWithRetry(downloadUrl, tempTar)
+    log('Extracting ffmpeg...', 'info')
+    extractTarXz(tempTar, extractDir)
+
+    const sourcePath = path.join(extractDir, innerPath)
+    if (!fileExists(sourcePath)) {
+      throw new Error(`ffmpeg binary not found at ${sourcePath}`)
+    }
+
+    fs.copyFileSync(sourcePath, outputPath)
+    setExecutable(outputPath)
+    log(`Downloaded ${output} successfully`, 'success')
+
+    // Cleanup
+    fs.unlinkSync(tempTar)
+    fs.rmSync(extractDir, { recursive: true, force: true })
+  } catch (error) {
+    if (fs.existsSync(tempTar)) fs.unlinkSync(tempTar)
+    if (fs.existsSync(extractDir)) fs.rmSync(extractDir, { recursive: true, force: true })
+    throw error
+  }
+}
+
+async function downloadDenoRuntime() {
+  const platform = os.platform()
+  const arch = os.arch()
+  const assetName = getDenoAssetName(platform, arch)
+
+  if (!assetName) {
+    log(`Skipping Deno runtime: unsupported platform/arch ${platform}/${arch}`, 'warn')
+    return
+  }
+
+  const outputName = getDenoOutputName(platform)
+  const outputPath = path.join(RESOURCES_DIR, outputName)
+
+  if (fileExists(outputPath)) {
+    log(`${outputName} already exists, skipping download`, 'info')
+    return
+  }
+
+  log(`Downloading Deno runtime (${platform}/${arch})...`, 'download')
+  const tempZip = path.join(RESOURCES_DIR, 'deno-temp.zip')
+  const extractDir = path.join(RESOURCES_DIR, 'deno-temp')
+  const downloadUrl = `${DENO_BASE_URL}/${assetName}`
+
+  try {
+    await downloadFileWithRetry(downloadUrl, tempZip)
+    log('Extracting Deno runtime...', 'info')
+    extractZip(tempZip, extractDir)
+
+    const sourcePath = path.join(extractDir, outputName)
+    if (!fileExists(sourcePath)) {
+      throw new Error(`Deno binary not found at ${sourcePath}`)
+    }
+
+    fs.copyFileSync(sourcePath, outputPath)
+    setExecutable(outputPath)
+    log(`Downloaded ${outputName} successfully`, 'success')
+
+    fs.unlinkSync(tempZip)
+    fs.rmSync(extractDir, { recursive: true, force: true })
+  } catch (error) {
+    if (fs.existsSync(tempZip)) fs.unlinkSync(tempZip)
+    if (fs.existsSync(extractDir)) fs.rmSync(extractDir, { recursive: true, force: true })
+    throw error
+  }
+}
+
+// Main setup function
+async function setup() {
+  const platform = os.platform()
+  const config = PLATFORM_CONFIG[platform]
+
+  if (!config) {
+    log(`Unsupported platform: ${platform}`, 'error')
+    process.exit(1)
+  }
+
+  log(`Setting up development binaries for ${platform}...`, 'info')
+  ensureDir(RESOURCES_DIR)
+
+  try {
+    // Download yt-dlp
+    await downloadYtDlp(config)
+
+    // Download JS runtime (Deno)
+    await downloadDenoRuntime()
+
+    // Download ffmpeg
+    if (platform === 'win32') {
+      await downloadFfmpegWindows(config)
+    } else if (platform === 'darwin') {
+      await downloadFfmpegMac(config)
+    } else if (platform === 'linux') {
+      await downloadFfmpegLinux(config)
+    }
+
+    log('Development environment setup completed!', 'success')
+  } catch (error) {
+    log(`Setup failed: ${error.message}`, 'error')
+    process.exit(1)
+  }
+}
+
+// Run setup
+if (require.main === module) {
+  setup()
+}
+
+module.exports = { setup }

src/main/config/logger-config.ts

@@ -0,0 +1,35 @@
+import log from 'electron-log/main'
+
+/**
+ * Configure electron-log
+ * Set log format, file path, transport methods, etc.
+ */
+export function configureLogger() {
+  // Set log levels
+  // Development: show all logs
+  // Production: show info level and above only
+  const isDev = process.env.NODE_ENV === 'development'
+  log.transports.console.level = isDev ? 'silly' : 'info'
+  log.transports.file.level = isDev ? 'silly' : 'info'
+
+  // Enable IPC transport in development environment to show renderer process logs in main process console
+  if (isDev) {
+    log.transports.ipc.level = 'silly'
+  } else {
+    log.transports.ipc.level = false
+  }
+
+  // Set maximum log file size (10MB)
+  log.transports.file.maxSize = 10 * 1024 * 1024
+
+  // Enable error catching - catch unhandled errors and rejected promises
+  log.errorHandler.startCatching({
+    showDialog: false, // Don't show error dialog, only log to file
+    onError: (options) => {
+      log.error('Unhandled error caught by electron-log:', options.error)
+      log.error('App versions:', options.versions)
+    }
+  })
+
+  log.info('Log file location:', log.transports.file.getFile().path)
+}

src/main/download-engine/args-builder.ts

@@ -0,0 +1,145 @@
+import path from 'node:path'
+import type { AppSettings, DownloadOptions } from '../../shared/types'
+import { resolvePathWithHome } from '../utils/path-helpers'
+
+export const sanitizeFilenameTemplate = (template: string): string => {
+  const trimmed = template.trim()
+  if (!trimmed) {
+    return '%(title)s via VidBee.%(ext)s'
+  }
+  const normalized = trimmed.replace(/\\/g, '/')
+  const safeParts = normalized
+    .split('/')
+    .map((part) => part.trim())
+    .filter((part) => part !== '' && part !== '.' && part !== '..')
+    .map((part) => part.replace(/[<>:"|?*]/g, '-').replace(/[. ]+$/g, ''))
+    .filter((part) => part !== '')
+  return safeParts.length === 0 ? '%(title)s via VidBee.%(ext)s' : safeParts.join('/')
+}
+
+export const resolveVideoFormatSelector = (options: DownloadOptions): string => {
+  const format = options.format
+  const audioFormat = options.audioFormat
+
+  if (format && audioFormat === '') {
+    return format
+  }
+
+  if (format && (format.includes('/') || (audioFormat === undefined && format.includes('+')))) {
+    return format
+  }
+
+  if (!format || format === 'best') {
+    if (audioFormat === 'none') {
+      return 'bestvideo+none'
+    }
+    if (!audioFormat || audioFormat === 'best') {
+      // Prefer merged formats, but allow single-file "best" for sites without separate streams.
+      return 'bestvideo+bestaudio/best'
+    }
+    return `bestvideo+${audioFormat}`
+  }
+
+  if (audioFormat === 'none') {
+    return `${format}+none`
+  }
+
+  const audio = audioFormat && audioFormat !== 'best' ? audioFormat : 'bestaudio'
+  return `${format}+${audio}`
+}
+
+export const resolveAudioFormatSelector = (options: DownloadOptions): string => {
+  const format = options.format
+
+  if (!format) {
+    return 'bestaudio'
+  }
+
+  if (format.includes('/') || format.includes('+') || format.includes('[')) {
+    return format
+  }
+
+  return format
+}
+
+export const buildDownloadArgs = (
+  options: DownloadOptions,
+  downloadPath: string,
+  settings: AppSettings,
+  jsRuntimeArgs: string[] = []
+): string[] => {
+  const args: string[] = ['--no-playlist', '--embed-chapters', '--no-mtime']
+
+  // Add encoding support for proper handling of non-ASCII characters
+  args.push('--encoding', 'utf-8')
+
+  // Format selection
+  if (options.type === 'video') {
+    const formatSelector = resolveVideoFormatSelector(options)
+    args.push('-f', formatSelector)
+    // Let yt-dlp automatically choose the best merge format (mkv/webm/mp4)
+    // based on codec compatibility. Forcing MP4 can cause failures
+    // when codecs are incompatible (e.g., VP9+Opus requires mkv/webm)
+  } else if (options.type === 'audio') {
+    args.push('-f', resolveAudioFormatSelector(options))
+  } else if (options.type === 'extract') {
+    args.push('-x')
+    args.push('--audio-format', options.extractFormat || 'mp3')
+    args.push('--audio-quality', options.extractQuality || '5')
+  }
+
+  // Time range
+  if (options.startTime || options.endTime) {
+    const start = options.startTime || '0'
+    const end = options.endTime || ''
+    args.push('--download-sections', `*${start}-${end || ''}`)
+  }
+
+  // Subtitles
+  if (options.downloadSubs) {
+    args.push('--write-subs', '--sub-langs', 'all')
+  }
+
+  // Output path with proper encoding handling
+  const baseDownloadPath = options.customDownloadPath?.trim() || downloadPath
+  const filenameTemplate = sanitizeFilenameTemplate(
+    options.customFilenameTemplate ?? '%(title)s via VidBee.%(ext)s'
+  )
+  const safeTemplate = filenameTemplate.replace(/^[\\/]+/, '')
+  const outputTemplate = path.join(baseDownloadPath, safeTemplate)
+  args.push('-o', outputTemplate)
+
+  // Add options for better filename handling
+  args.push('--no-part')
+  args.push('--no-playlist-reverse')
+
+  if (process.platform === 'win32') {
+    args.push('--windows-filenames')
+  }
+
+  if (settings.browserForCookies && settings.browserForCookies !== 'none') {
+    args.push('--cookies-from-browser', settings.browserForCookies)
+  }
+
+  const cookiesPath = settings.cookiesPath?.trim()
+  if (cookiesPath) {
+    args.push('--cookies', cookiesPath)
+  }
+
+  if (settings.proxy) {
+    args.push('--proxy', settings.proxy)
+  }
+
+  const configPath = resolvePathWithHome(settings.configPath)
+  if (configPath) {
+    args.push('--config-location', configPath)
+  }
+
+  if (jsRuntimeArgs.length > 0) {
+    args.push(...jsRuntimeArgs)
+  }
+
+  args.push(options.url)
+
+  return args
+}

src/main/download-engine/format-utils.ts

@@ -0,0 +1,208 @@
+import type {
+  AppSettings,
+  DownloadOptions,
+  OneClickQualityPreset,
+  VideoFormat
+} from '../../shared/types'
+
+const qualityPresetToVideoHeight: Record<OneClickQualityPreset, number | null> = {
+  best: null,
+  good: 1080,
+  normal: 720,
+  bad: 480,
+  worst: 360
+}
+
+const qualityPresetToAudioAbr: Record<OneClickQualityPreset, number | null> = {
+  best: 320,
+  good: 256,
+  normal: 192,
+  bad: 128,
+  worst: 96
+}
+
+const selectVideoFormatForPreset = (
+  formats: VideoFormat[],
+  preset: OneClickQualityPreset
+): VideoFormat | undefined => {
+  if (formats.length === 0) {
+    return undefined
+  }
+
+  const sorted = [...formats].sort((a, b) => {
+    const heightDiff = (b.height ?? 0) - (a.height ?? 0)
+    if (heightDiff !== 0) return heightDiff
+    const fpsDiff = (b.fps ?? 0) - (a.fps ?? 0)
+    if (fpsDiff !== 0) return fpsDiff
+    return (b.tbr ?? 0) - (a.tbr ?? 0)
+  })
+
+  if (preset === 'worst') {
+    return sorted[sorted.length - 1] ?? sorted[0]
+  }
+
+  const heightLimit = qualityPresetToVideoHeight[preset]
+  if (!heightLimit) {
+    return sorted[0]
+  }
+
+  const withinLimit = sorted.find((format) => {
+    const height = format.height ?? 0
+    return height > 0 && height <= heightLimit
+  })
+
+  return withinLimit ?? sorted[0]
+}
+
+const selectAudioFormatForPreset = (
+  formats: VideoFormat[],
+  preset: OneClickQualityPreset
+): VideoFormat | undefined => {
+  if (formats.length === 0) {
+    return undefined
+  }
+
+  const sorted = [...formats].sort((a, b) => {
+    const bitrateDiff = (b.tbr ?? 0) - (a.tbr ?? 0)
+    if (bitrateDiff !== 0) return bitrateDiff
+    const sizeA = a.filesize ?? a.filesize_approx ?? 0
+    const sizeB = b.filesize ?? b.filesize_approx ?? 0
+    if (sizeB !== sizeA) return sizeB - sizeA
+    return 0
+  })
+
+  if (preset === 'worst') {
+    return sorted[sorted.length - 1] ?? sorted[0]
+  }
+
+  const abrLimit = qualityPresetToAudioAbr[preset]
+  if (!abrLimit) {
+    return sorted[0]
+  }
+
+  const withinLimit = sorted.find((format) => {
+    const bitrate = format.tbr ?? 0
+    return bitrate > 0 && bitrate <= abrLimit
+  })
+
+  return withinLimit ?? sorted[0]
+}
+
+const findFormatBySelector = (
+  formats: VideoFormat[],
+  selector?: string
+): VideoFormat | undefined => {
+  if (!selector) {
+    return undefined
+  }
+
+  const candidateIds = selector
+    .split('/')
+    .map((option) => option.split('+')[0].trim())
+    .filter((option) => option.length > 0)
+
+  for (const candidateId of candidateIds) {
+    const match = formats.find((format) => format.format_id === candidateId)
+    if (match) {
+      return match
+    }
+  }
+
+  return undefined
+}
+
+export const findFormatByIdCandidates = (
+  formats: VideoFormat[],
+  rawFormatId: string | undefined
+): VideoFormat | undefined => {
+  if (!rawFormatId) {
+    return undefined
+  }
+
+  const parts = rawFormatId
+    .split('+')
+    .map((part) => part.trim())
+    .filter((part) => part.length > 0)
+
+  for (const part of parts) {
+    const match = formats.find((format) => format.format_id === part)
+    if (match) {
+      return match
+    }
+  }
+
+  return undefined
+}
+
+export const parseSizeToBytes = (value?: string): number | undefined => {
+  if (!value) {
+    return undefined
+  }
+
+  const cleaned = value.trim().replace(/^~\s*/, '')
+  if (!cleaned) {
+    return undefined
+  }
+
+  const match = cleaned.match(/^([\d.,]+)\s*([KMGTP]?i?B)$/i)
+  if (!match) {
+    return undefined
+  }
+
+  const amount = Number(match[1].replace(/,/g, ''))
+  if (Number.isNaN(amount)) {
+    return undefined
+  }
+
+  const unit = match[2].toUpperCase()
+  const multipliers: Record<string, number> = {
+    B: 1,
+    KB: 1_000,
+    KIB: 1_024,
+    MB: 1_000_000,
+    MIB: 1_048_576,
+    GB: 1_000_000_000,
+    GIB: 1_073_741_824,
+    TB: 1_000_000_000_000,
+    TIB: 1_099_511_627_776
+  }
+
+  const multiplier = multipliers[unit]
+  if (!multiplier) {
+    return undefined
+  }
+
+  return Math.round(amount * multiplier)
+}
+
+export const resolveSelectedFormat = (
+  formats: VideoFormat[],
+  options: DownloadOptions,
+  settings: AppSettings
+): VideoFormat | undefined => {
+  const directMatch = findFormatBySelector(formats, options.format)
+  if (directMatch) {
+    return directMatch
+  }
+
+  const preset = settings.oneClickQuality ?? 'best'
+
+  if (options.type === 'video') {
+    const videoFormats = formats.filter(
+      (format) => format.video_ext !== 'none' && !!format.vcodec && format.vcodec !== 'none'
+    )
+    return selectVideoFormatForPreset(videoFormats, preset)
+  }
+
+  if (options.type === 'audio' || options.type === 'extract') {
+    const audioFormats = formats.filter(
+      (format) =>
+        !!format.acodec &&
+        format.acodec !== 'none' &&
+        (!format.video_ext || format.video_ext === 'none')
+    )
+    return selectAudioFormatForPreset(audioFormats, preset)
+  }
+
+  return undefined
+}

src/main/index.ts

@@ -1,30 +1,151 @@
-import { join } from 'node:path'
+import { existsSync } from 'node:fs'
+import { isAbsolute, join, relative, resolve } from 'node:path'
 import { electronApp, optimizer } from '@electron-toolkit/utils'
-import { app, BrowserWindow, shell } from 'electron'
-import log from 'electron-log'
+import { APP_PROTOCOL, APP_PROTOCOL_SCHEME } from '@shared/constants'
+import {
+  app,
+  BrowserWindow,
+  type BrowserWindowConstructorOptions,
+  ipcMain,
+  protocol,
+  shell
+} from 'electron'
+import log from 'electron-log/main'
 import { autoUpdater } from 'electron-updater'
 import appIcon from '../../build/icon.png?asset'
-import { downloadEngine } from './download-engine'
+import { configureLogger } from './config/logger-config'
 import { services } from './ipc'
+import { downloadEngine } from './lib/download-engine'
+import { ffmpegManager } from './lib/ffmpeg-manager'
+import { subscriptionManager } from './lib/subscription-manager'
+import { subscriptionScheduler } from './lib/subscription-scheduler'
 import { ytdlpManager } from './lib/ytdlp-manager'
+import { startExtensionApiServer, stopExtensionApiServer } from './local-api'
 import { settingsManager } from './settings'
 import { createTray, destroyTray } from './tray'
+import { applyAutoLaunchSetting } from './utils/auto-launch'
+import { applyDockVisibility } from './utils/dock'
+
+// Initialize electron-log for main process
+log.initialize()
+
+// Configure logger settings
+configureLogger()
+
+const RENDERER_DIST_PATH = join(__dirname, '../renderer')
+
+protocol.registerSchemesAsPrivileged([
+  {
+    scheme: APP_PROTOCOL,
+    privileges: {
+      secure: true,
+      standard: true,
+      supportFetchAPI: true
+    }
+  }
+])
 
 let mainWindow: BrowserWindow | null = null
 let isQuitting = false
+interface DeepLinkData {
+  url: string
+  type: 'single' | 'playlist'
+}
+const pendingDeepLinkUrls: DeepLinkData[] = []
+let isRendererReady = false
+
+const parseDownloadDeepLink = (rawUrl: string): DeepLinkData | null => {
+  try {
+    const parsed = new URL(rawUrl)
+    if (parsed.protocol !== `${APP_PROTOCOL}:`) {
+      return null
+    }
+
+    const host = parsed.hostname
+    const path = parsed.pathname.replace(/^\/+/, '')
+    const isDownloadLink = host === 'download' || path.startsWith('download')
+    if (!isDownloadLink) {
+      return null
+    }
+
+    const targetUrl = parsed.searchParams.get('url')
+    if (!targetUrl || !targetUrl.trim()) {
+      return null
+    }
+
+    const typeParam = parsed.searchParams.get('type')
+    const type = typeParam === 'playlist' ? 'playlist' : 'single'
+
+    return {
+      url: targetUrl.trim(),
+      type
+    }
+  } catch (error) {
+    log.warn('Failed to parse deep link:', error)
+    return null
+  }
+}
+
+const deliverDeepLink = (data: DeepLinkData): void => {
+  if (!mainWindow || !isRendererReady) {
+    pendingDeepLinkUrls.push(data)
+    return
+  }
+
+  if (mainWindow.isMinimized()) {
+    mainWindow.restore()
+  }
+  if (!mainWindow.isVisible()) {
+    mainWindow.show()
+  }
+  mainWindow.focus()
+  mainWindow.webContents.send('download:deeplink', data)
+}
+
+const flushPendingDeepLinks = (): void => {
+  if (!mainWindow || !isRendererReady || pendingDeepLinkUrls.length === 0) {
+    return
+  }
+
+  const pending = pendingDeepLinkUrls.splice(0, pendingDeepLinkUrls.length)
+  for (const data of pending) {
+    mainWindow.webContents.send('download:deeplink', data)
+  }
+}
+
+const handleDeepLinkUrl = (rawUrl: string): void => {
+  const data = parseDownloadDeepLink(rawUrl)
+  if (!data) {
+    log.warn('Ignored unsupported deep link:', rawUrl)
+    return
+  }
+  deliverDeepLink(data)
+}
+
+const handleDeepLinkArgv = (argv: string[]): void => {
+  for (const arg of argv) {
+    if (arg.startsWith(`${APP_PROTOCOL}://`)) {
+      handleDeepLinkUrl(arg)
+    }
+  }
+}
+
+subscriptionManager.on('subscriptions:updated', (subscriptions) => {
+  mainWindow?.webContents.send('subscriptions:updated', subscriptions)
+})
 
 export function createWindow(): void {
-  // Create the browser window
-  mainWindow = new BrowserWindow({
+  const isMac = process.platform === 'darwin'
+  const isWindows = process.platform === 'win32'
+  const shouldStartHidden = isWindows && app.getLoginItemSettings().wasOpenedAtLogin
+
+  const windowOptions: BrowserWindowConstructorOptions = {
     width: 1200,
     height: 800,
     show: false,
-    titleBarStyle: 'hidden', // Hide title bar on macOS
     autoHideMenuBar: true,
     icon: appIcon, // Set application icon
     frame: false,
-    vibrancy: 'fullscreen-ui', // on MacOS
-    backgroundMaterial: 'acrylic', // on Windows 11
     webPreferences: {
       preload: join(__dirname, '../preload/index.js'),
       sandbox: false,
@@ -32,7 +153,20 @@ export function createWindow(): void {
       nodeIntegration: false,
       webSecurity: false // Allow drag regions to work
     }
-  })
+  }
+
+  if (isMac) {
+    windowOptions.titleBarStyle = 'hidden'
+    windowOptions.trafficLightPosition = { x: 12.5, y: 10 }
+    windowOptions.vibrancy = 'fullscreen-ui'
+  }
+
+  if (isWindows) {
+    windowOptions.backgroundMaterial = 'acrylic'
+  }
+
+  // Create the browser window
+  mainWindow = new BrowserWindow(windowOptions)
 
   mainWindow.on('close', (event) => {
     const closeToTray = settingsManager.get('closeToTray')
@@ -43,6 +177,9 @@ export function createWindow(): void {
   })
 
   mainWindow.on('ready-to-show', () => {
+    if (shouldStartHidden) {
+      return
+    }
     mainWindow?.show()
   })
 
@@ -56,13 +193,57 @@ export function createWindow(): void {
   if (process.env.ELECTRON_RENDERER_URL) {
     mainWindow.loadURL(process.env.ELECTRON_RENDERER_URL)
   } else {
-    mainWindow.loadFile(join(__dirname, '../renderer/index.html'))
+    mainWindow.loadURL(`${APP_PROTOCOL_SCHEME}renderer/index.html`)
   }
 
+  mainWindow.webContents.on('did-finish-load', () => {
+    mainWindow?.webContents.send('subscriptions:updated', subscriptionManager.getAll())
+    isRendererReady = true
+    flushPendingDeepLinks()
+  })
+
+  // Setup error handling for renderer process
+  setupRendererErrorHandling()
+
   // Setup download engine event forwarding to renderer
   setupDownloadEvents()
 }
 
+function setupRendererErrorHandling(): void {
+  if (!mainWindow) return
+
+  // Handle uncaught exceptions in renderer process
+  mainWindow.webContents.on('unresponsive', () => {
+    log.error('Renderer process became unresponsive')
+  })
+
+  mainWindow.webContents.on('responsive', () => {
+    log.info('Renderer process became responsive again')
+  })
+
+  // Listen for renderer errors via IPC
+  ipcMain.on('error:renderer', (_event, errorData) => {
+    log.error('Renderer error received:', errorData)
+
+    // Log detailed error information
+    if (errorData.error) {
+      log.error('Error name:', errorData.error.name)
+      log.error('Error message:', errorData.error.message)
+      if (errorData.error.stack) {
+        log.error('Error stack:', errorData.error.stack)
+      }
+    }
+
+    if (errorData.errorInfo?.componentStack) {
+      log.error('Component stack:', errorData.errorInfo.componentStack)
+    }
+
+    if (errorData.context) {
+      log.error('Error context:', errorData.context)
+    }
+  })
+}
+
 function setupDownloadEvents(): void {
   downloadEngine.on('download-started', (id: string) => {
     mainWindow?.webContents.send('download:started', id)
@@ -85,6 +266,151 @@ function setupDownloadEvents(): void {
   })
 }
 
+function sanitizeRequestPath(requestUrl: URL): string {
+  const rawPath = `${requestUrl.hostname}${decodeURIComponent(requestUrl.pathname)}`
+  const trimmedLeading = rawPath.replace(/^\/+/, '')
+  const cleaned = trimmedLeading.replace(/\/+$/, '')
+  return cleaned || 'index.html'
+}
+
+function isWithinBase(targetPath: string, basePath: string): boolean {
+  const relativePath = relative(basePath, targetPath)
+  return !relativePath.startsWith('..') && !isAbsolute(relativePath)
+}
+
+function resolveVidbeeFilePath(requestUrl: URL, userDataPath: string): string | null {
+  const sanitizedPath = sanitizeRequestPath(requestUrl)
+  const [rootSegment, ...restSegments] = sanitizedPath.split('/')
+  const rendererPath = restSegments.join('/') || 'index.html'
+
+  if (rootSegment === 'renderer') {
+    const rendererTarget = resolve(RENDERER_DIST_PATH, rendererPath)
+
+    if (isWithinBase(rendererTarget, RENDERER_DIST_PATH) && existsSync(rendererTarget)) {
+      return rendererTarget
+    }
+  }
+
+  const userDataTarget = resolve(userDataPath, sanitizedPath)
+
+  if (isWithinBase(userDataTarget, userDataPath) && existsSync(userDataTarget)) {
+    return userDataTarget
+  }
+
+  const rendererFallback = resolve(RENDERER_DIST_PATH, sanitizedPath)
+
+  if (isWithinBase(rendererFallback, RENDERER_DIST_PATH) && existsSync(rendererFallback)) {
+    return rendererFallback
+  }
+
+  return null
+}
+
+function registerVidbeeProtocol(): void {
+  try {
+    const userDataPath = app.getPath('userData')
+    protocol.registerFileProtocol(APP_PROTOCOL, (request, callback) => {
+      const requestUrl = new URL(request.url)
+      const filePath = resolveVidbeeFilePath(requestUrl, userDataPath)
+
+      if (!filePath) {
+        log.error(`File not found for ${request.url}`)
+        callback({ error: -6 })
+        return
+      }
+
+      callback(filePath)
+    })
+  } catch (error) {
+    log.error(`Failed to register ${APP_PROTOCOL} protocol:`, error)
+  }
+}
+
+function initAutoUpdater(): void {
+  try {
+    log.info('Initializing auto-updater...')
+
+    log.transports.file.level = 'info'
+    autoUpdater.logger = log
+    autoUpdater.autoDownload = true
+    autoUpdater.autoInstallOnAppQuit = true
+
+    autoUpdater.on('update-available', (info) => {
+      log.info('Update available:', info.version)
+      mainWindow?.webContents.send('update:available', info)
+
+      // If auto-update is enabled, the update will be downloaded automatically
+      // because autoDownload is set to true
+      if (settingsManager.get('autoUpdate')) {
+        log.info('Auto-update is enabled, update will be downloaded automatically')
+      }
+    })
+
+    autoUpdater.on('update-not-available', (info) => {
+      log.info('Update not available:', info.version)
+      mainWindow?.webContents.send('update:not-available', info)
+    })
+
+    autoUpdater.on('error', (err) => {
+      log.error('Update error:', err)
+      mainWindow?.webContents.send('update:error', err.message)
+    })
+
+    autoUpdater.on('download-progress', (progressObj) => {
+      log.info('Download progress:', progressObj.percent)
+      mainWindow?.webContents.send('update:download-progress', progressObj)
+    })
+
+    autoUpdater.on('update-downloaded', (info) => {
+      log.info('Update downloaded:', info.version)
+      mainWindow?.webContents.send('update:downloaded', info)
+
+      if (mainWindow) {
+        mainWindow.webContents.send('update:show-notification', {
+          version: info.version
+        })
+      }
+    })
+
+    log.info('Auto-updater initialized successfully')
+
+    // Check for updates immediately if auto-update is enabled
+    const autoUpdateEnabled = settingsManager.get('autoUpdate')
+    if (autoUpdateEnabled) {
+      log.info('Auto-update is enabled, checking for updates immediately...')
+      // Use checkForUpdates instead of checkForUpdatesAndNotify
+      // because we have our own notification system and want to ensure immediate download
+      void autoUpdater.checkForUpdates()
+    } else {
+      log.info('Auto-update is disabled, skipping automatic update check')
+    }
+  } catch (error) {
+    log.error('Failed to initialize auto-updater:', error)
+  }
+}
+
+const gotSingleInstanceLock = app.requestSingleInstanceLock()
+
+if (!gotSingleInstanceLock) {
+  app.quit()
+} else {
+  app.on('second-instance', (_event, argv) => {
+    handleDeepLinkArgv(argv)
+    if (mainWindow) {
+      if (mainWindow.isMinimized()) {
+        mainWindow.restore()
+      }
+      mainWindow.show()
+      mainWindow.focus()
+    }
+  })
+}
+
+app.on('open-url', (event, url) => {
+  event.preventDefault()
+  handleDeepLinkUrl(url)
+})
+
 // This method will be called when Electron has finished
 // initialization and is ready to create browser windows.
 // Some APIs can only be used after this event occurs.
@@ -92,105 +418,67 @@ app.whenReady().then(async () => {
   // Set app user model id for windows
   electronApp.setAppUserModelId('com.vidbee')
 
+  registerVidbeeProtocol()
+
+  const registered = app.setAsDefaultProtocolClient(APP_PROTOCOL)
+  if (!registered) {
+    log.warn(`Failed to register ${APP_PROTOCOL} protocol handler`)
+  }
+
   // Default open or close DevTools by F12 in development
   // and ignore CommandOrControl + R in production.
   app.on('browser-window-created', (_, window) => {
     optimizer.watchWindowShortcuts(window)
+
+    // Enable F12 to toggle DevTools in both development and production
+    window.webContents.on('before-input-event', (_, input) => {
+      if (input.key === 'F12') {
+        if (window.webContents.isDevToolsOpened()) {
+          window.webContents.closeDevTools()
+        } else {
+          window.webContents.openDevTools()
+        }
+      }
+    })
   })
 
   // IPC services are automatically registered by electron-ipc-decorator when imported
-  console.log('IPC services available:', Object.keys(services))
+  log.info('IPC services available:', Object.keys(services))
+
+  // Initialize ffmpeg
+  try {
+    log.info('Initializing ffmpeg...')
+    await ffmpegManager.initialize()
+    log.info('ffmpeg initialized successfully')
+  } catch (error) {
+    log.error('Failed to initialize ffmpeg:', error)
+  }
 
   // Initialize yt-dlp
   try {
-    console.log('Initializing yt-dlp...')
+    log.info('Initializing yt-dlp...')
     await ytdlpManager.initialize()
-    console.log('yt-dlp initialized successfully')
+    log.info('yt-dlp initialized successfully')
   } catch (error) {
-    console.error('Failed to initialize yt-dlp:', error)
+    log.error('Failed to initialize yt-dlp:', error)
   }
 
-  // Initialize auto-updater (only in production)
-  if (process.env.NODE_ENV === 'production') {
-    try {
-      console.log('Initializing auto-updater...')
+  await startExtensionApiServer()
 
-      // Configure logging
-      log.transports.file.level = 'info'
-      autoUpdater.logger = log
-
-      // Configure auto-updater for production
-      autoUpdater.autoDownload = true // Auto download updates
-      autoUpdater.autoInstallOnAppQuit = true // Auto install on quit
-
-      // Set up event listeners
-      autoUpdater.on('update-available', (info) => {
-        log.info('Update available:', info.version)
-        console.log('Update available:', info.version)
-        // Send notification to renderer
-        mainWindow?.webContents.send('update:available', info)
-      })
-
-      autoUpdater.on('update-not-available', (info) => {
-        log.info('Update not available:', info.version)
-        console.log('Update not available:', info.version)
-        // Send notification to renderer
-        mainWindow?.webContents.send('update:not-available', info)
-      })
-
-      autoUpdater.on('error', (err) => {
-        log.error('Update error:', err)
-        console.error('Update error:', err)
-        // Send error to renderer
-        mainWindow?.webContents.send('update:error', err.message)
-      })
-
-      autoUpdater.on('download-progress', (progressObj) => {
-        log.info('Download progress:', progressObj.percent)
-        console.log('Download progress:', progressObj.percent)
-        // Send progress to renderer
-        mainWindow?.webContents.send('update:download-progress', progressObj)
-      })
-
-      autoUpdater.on('update-downloaded', (info) => {
-        log.info('Update downloaded:', info.version)
-        console.log('Update downloaded:', info.version)
-        // Send notification to renderer
-        mainWindow?.webContents.send('update:downloaded', info)
-
-        // Show system notification
-        if (mainWindow) {
-          mainWindow.webContents.send('update:show-notification', {
-            title: 'Update Ready',
-            body: `Version ${info.version} has been downloaded and will be installed on restart.`,
-            icon: 'app-icon'
-          })
-        }
-      })
-
-      // Check for updates on startup if auto-update is enabled
-      if (settingsManager.get('autoUpdate')) {
-        log.info('Auto-update is enabled, checking for updates...')
-        console.log('Auto-update is enabled, checking for updates...')
-        // Use checkForUpdatesAndNotify for automatic notifications
-        await autoUpdater.checkForUpdatesAndNotify()
-      }
-
-      log.info('Auto-updater initialized successfully')
-      console.log('Auto-updater initialized successfully')
-    } catch (error) {
-      log.error('Failed to initialize auto-updater:', error)
-      console.error('Failed to initialize auto-updater:', error)
-    }
-  } else {
-    console.log('Skipping auto-updater initialization in development mode')
-  }
+  applyDockVisibility(settingsManager.get('hideDockIcon'))
+  applyAutoLaunchSetting(settingsManager.get('launchAtLogin'))
 
   createWindow()
 
+  initAutoUpdater()
+
   // Create system tray
   createTray()
 
+  subscriptionScheduler.start()
+
+  handleDeepLinkArgv(process.argv)
+
   app.on('activate', () => {
     // On macOS it's common to re-create a window in the app when the
     // dock icon is clicked and there are no other windows open.
@@ -224,6 +512,7 @@ app.on('window-all-closed', () => {
 // Cleanup tray on quit
 app.on('will-quit', () => {
   destroyTray()
+  void stopExtensionApiServer()
 })
 
 // In this file you can include the rest of your app's specific main process

src/main/ipc/index.ts

@@ -1,9 +1,11 @@
 import { createServices, type MergeIpcService } from 'electron-ipc-decorator'
 import { AppService } from './services/app-service'
+import { BrowserCookiesService } from './services/browser-cookies-service'
 import { DownloadService } from './services/download-service'
 import { FileSystemService } from './services/file-system-service'
 import { HistoryService } from './services/history-service'
 import { SettingsService } from './services/settings-service'
+import { SubscriptionService } from './services/subscription-service'
 import { ThumbnailService } from './services/thumbnail-service'
 import { UpdateService } from './services/update-service'
 import { WindowService } from './services/window-service'
@@ -11,10 +13,12 @@ import { WindowService } from './services/window-service'
 // Create services with automatic type inference
 export const services = createServices([
   AppService,
+  BrowserCookiesService,
   DownloadService,
   FileSystemService,
   HistoryService,
   SettingsService,
+  SubscriptionService,
   ThumbnailService,
   UpdateService,
   WindowService

src/main/ipc/services/app-service.ts

@@ -1,6 +1,7 @@
 import os from 'node:os'
 import { app, BrowserWindow, dialog } from 'electron'
 import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
+import { scopedLoggers } from '../../utils/logger'
 
 class AppService extends IpcService {
   static readonly groupName = 'app'
@@ -32,6 +33,26 @@ class AppService extends IpcService {
 
     return dialog.showMessageBox(options)
   }
+
+  @IpcMethod()
+  async getSiteIcon(_context: IpcContext, domain: string): Promise<string | null> {
+    try {
+      const iconUrl = `https://unavatar.io/${domain}`
+      const response = await fetch(iconUrl)
+      if (!response.ok) {
+        return null
+      }
+
+      const arrayBuffer = await response.arrayBuffer()
+      const buffer = Buffer.from(arrayBuffer)
+      const contentType = response.headers.get('content-type') || 'image/png'
+      const base64 = buffer.toString('base64')
+      return `data:${contentType};base64,${base64}`
+    } catch (error) {
+      scopedLoggers.system.error('Failed to fetch site icon:', error)
+      return null
+    }
+  }
 }
 
 export { AppService }

src/main/ipc/services/browser-cookies-service.ts

@@ -0,0 +1,270 @@
+import fs from 'node:fs'
+import os from 'node:os'
+import path from 'node:path'
+import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
+import { resolvePathWithHome } from '../../utils/path-helpers'
+
+class BrowserCookiesService extends IpcService {
+  static readonly groupName = 'browserCookies'
+
+  private buildValidationResult(valid: boolean, reason?: string) {
+    if (valid) {
+      return { valid }
+    }
+    return { valid, reason }
+  }
+
+  private isDirectory(target: string): boolean {
+    try {
+      return fs.statSync(target).isDirectory()
+    } catch {
+      return false
+    }
+  }
+
+  private pickFirstDirectory(paths: string[]): string {
+    for (const candidate of paths) {
+      if (this.isDirectory(candidate)) {
+        return candidate
+      }
+    }
+    return ''
+  }
+
+  private normalizeProfileInput(value: string): string {
+    return value.trim().replace(/^['"]|['"]$/g, '')
+  }
+
+  private getBrowserProfileBaseDirs(platform: string, homeDir: string, browser: string): string[] {
+    if (platform === 'win32') {
+      if (browser === 'edge') {
+        return [path.join(homeDir, 'AppData', 'Local', 'Microsoft', 'Edge', 'User Data')]
+      }
+      if (browser === 'chrome') {
+        return [path.join(homeDir, 'AppData', 'Local', 'Google', 'Chrome', 'User Data')]
+      }
+      if (browser === 'chromium') {
+        return [path.join(homeDir, 'AppData', 'Local', 'Chromium', 'User Data')]
+      }
+      if (browser === 'brave') {
+        return [
+          path.join(homeDir, 'AppData', 'Local', 'BraveSoftware', 'Brave-Browser', 'User Data')
+        ]
+      }
+      if (browser === 'vivaldi') {
+        return [path.join(homeDir, 'AppData', 'Local', 'Vivaldi', 'User Data')]
+      }
+      if (browser === 'whale') {
+        return [path.join(homeDir, 'AppData', 'Local', 'Naver', 'Whale', 'User Data')]
+      }
+      if (browser === 'opera') {
+        return [path.join(homeDir, 'AppData', 'Roaming', 'Opera Software', 'Opera Stable')]
+      }
+      if (browser === 'firefox') {
+        return [path.join(homeDir, 'AppData', 'Roaming', 'Mozilla', 'Firefox', 'Profiles')]
+      }
+    }
+
+    if (platform === 'darwin') {
+      if (browser === 'edge') {
+        return [path.join(homeDir, 'Library', 'Application Support', 'Microsoft Edge')]
+      }
+      if (browser === 'chrome') {
+        return [path.join(homeDir, 'Library', 'Application Support', 'Google', 'Chrome')]
+      }
+      if (browser === 'chromium') {
+        return [path.join(homeDir, 'Library', 'Application Support', 'Chromium')]
+      }
+      if (browser === 'brave') {
+        return [
+          path.join(homeDir, 'Library', 'Application Support', 'BraveSoftware', 'Brave-Browser')
+        ]
+      }
+      if (browser === 'vivaldi') {
+        return [path.join(homeDir, 'Library', 'Application Support', 'Vivaldi')]
+      }
+      if (browser === 'whale') {
+        return [
+          path.join(homeDir, 'Library', 'Application Support', 'Whale'),
+          path.join(homeDir, 'Library', 'Application Support', 'Naver Whale')
+        ]
+      }
+      if (browser === 'opera') {
+        return [
+          path.join(homeDir, 'Library', 'Application Support', 'com.operasoftware.Opera'),
+          path.join(homeDir, 'Library', 'Application Support', 'Opera Software', 'Opera Stable')
+        ]
+      }
+      if (browser === 'firefox') {
+        return [path.join(homeDir, 'Library', 'Application Support', 'Firefox', 'Profiles')]
+      }
+      if (browser === 'safari') {
+        return [path.join(homeDir, 'Library', 'Safari')]
+      }
+    }
+
+    if (platform === 'linux') {
+      if (browser === 'edge') {
+        return [path.join(homeDir, '.config', 'microsoft-edge')]
+      }
+      if (browser === 'chrome') {
+        return [path.join(homeDir, '.config', 'google-chrome')]
+      }
+      if (browser === 'chromium') {
+        return [path.join(homeDir, '.config', 'chromium')]
+      }
+      if (browser === 'brave') {
+        return [path.join(homeDir, '.config', 'BraveSoftware', 'Brave-Browser')]
+      }
+      if (browser === 'vivaldi') {
+        return [path.join(homeDir, '.config', 'vivaldi')]
+      }
+      if (browser === 'whale') {
+        return [path.join(homeDir, '.config', 'naver-whale')]
+      }
+      if (browser === 'opera') {
+        return [path.join(homeDir, '.config', 'opera')]
+      }
+      if (browser === 'firefox') {
+        return [path.join(homeDir, '.mozilla', 'firefox')]
+      }
+    }
+
+    if (platform === 'freebsd') {
+      if (browser === 'firefox') {
+        return [path.join(homeDir, '.mozilla', 'firefox')]
+      }
+    }
+
+    return []
+  }
+
+  private getDefaultProfilePath(baseDirs: string[], browser: string): string {
+    const base = baseDirs[0]
+    if (!base) {
+      return ''
+    }
+
+    if (browser === 'firefox' || browser === 'safari' || browser === 'opera') {
+      return base
+    }
+
+    return path.join(base, 'Default')
+  }
+
+  private findFirefoxProfilePath(profilesDir: string): string {
+    if (!this.isDirectory(profilesDir)) {
+      return ''
+    }
+
+    const entries = fs
+      .readdirSync(profilesDir, { withFileTypes: true })
+      .filter((entry) => entry.isDirectory())
+      .map((entry) => entry.name)
+      .sort((a, b) => a.localeCompare(b))
+
+    const preferred =
+      entries.find((name) => name.endsWith('.default-release')) ??
+      entries.find((name) => name.endsWith('.default')) ??
+      entries[0]
+
+    return preferred ? path.join(profilesDir, preferred) : ''
+  }
+
+  @IpcMethod()
+  getBrowserProfilePath(_context: IpcContext, browser: string): string {
+    if (!browser || browser === 'none') {
+      return ''
+    }
+
+    const homeDir = os.homedir()
+    const platform = os.platform()
+    const baseDirs = this.getBrowserProfileBaseDirs(platform, homeDir, browser)
+    const fallbackPath = this.getDefaultProfilePath(baseDirs, browser)
+
+    if (browser === 'firefox') {
+      const profilesDir = baseDirs[0]
+      const profilePath = profilesDir ? this.findFirefoxProfilePath(profilesDir) : ''
+      return profilePath || fallbackPath
+    }
+
+    if (browser === 'safari') {
+      const safariPath = baseDirs[0]
+      if (safariPath && this.isDirectory(safariPath)) {
+        return safariPath
+      }
+      return fallbackPath
+    }
+
+    if (baseDirs.length === 0) {
+      return fallbackPath
+    }
+
+    let detectedPath = ''
+    for (const baseDir of baseDirs) {
+      if (!baseDir) {
+        continue
+      }
+      const candidates =
+        browser === 'opera'
+          ? [baseDir, path.join(baseDir, 'Default'), path.join(baseDir, 'Profile 1')]
+          : [path.join(baseDir, 'Default'), path.join(baseDir, 'Profile 1')]
+      detectedPath = this.pickFirstDirectory(candidates)
+      if (detectedPath) {
+        break
+      }
+    }
+
+    return detectedPath || fallbackPath
+  }
+
+  @IpcMethod()
+  validateBrowserProfilePath(
+    _context: IpcContext,
+    browser: string,
+    profilePath: string
+  ): { valid: boolean; reason?: string } {
+    if (!browser || browser === 'none') {
+      return this.buildValidationResult(false, 'browserUnsupported')
+    }
+
+    const normalizedInput = this.normalizeProfileInput(profilePath)
+    if (!normalizedInput) {
+      return this.buildValidationResult(false, 'empty')
+    }
+
+    const resolvedInput = resolvePathWithHome(normalizedInput)
+    if (resolvedInput && this.isDirectory(resolvedInput)) {
+      return this.buildValidationResult(true)
+    }
+
+    const looksLikePath =
+      resolvedInput &&
+      (path.isAbsolute(resolvedInput) ||
+        resolvedInput.includes('/') ||
+        resolvedInput.includes('\\'))
+    if (looksLikePath) {
+      return this.buildValidationResult(false, 'pathNotFound')
+    }
+
+    const platform = os.platform()
+    const homeDir = os.homedir()
+    const baseDirs = this.getBrowserProfileBaseDirs(platform, homeDir, browser)
+    if (baseDirs.length === 0) {
+      return this.buildValidationResult(false, 'browserUnsupported')
+    }
+    for (const baseDir of baseDirs) {
+      if (!baseDir) {
+        continue
+      }
+      const candidate = path.join(baseDir, normalizedInput)
+      if (this.isDirectory(candidate)) {
+        return this.buildValidationResult(true)
+      }
+    }
+
+    return this.buildValidationResult(false, 'profileNotFound')
+  }
+}
+
+export { BrowserCookiesService }

src/main/ipc/services/download-service.ts

@@ -3,10 +3,11 @@ import type {
   DownloadItem,
   DownloadOptions,
   PlaylistDownloadOptions,
+  PlaylistDownloadResult,
   PlaylistInfo,
   VideoInfo
 } from '../../../shared/types'
-import { downloadEngine } from '../../download-engine'
+import { downloadEngine } from '../../lib/download-engine'
 
 class DownloadService extends IpcService {
   static readonly groupName = 'download'
@@ -45,7 +46,7 @@ class DownloadService extends IpcService {
   async startPlaylistDownload(
     _context: IpcContext,
     options: PlaylistDownloadOptions
-  ): Promise<string[]> {
+  ): Promise<PlaylistDownloadResult> {
     return downloadEngine.startPlaylistDownload(options)
   }
 }

src/main/ipc/services/file-system-service.ts

@@ -1,9 +1,14 @@
-import type { Dirent } from 'node:fs'
+import { execFile, execSync } from 'node:child_process'
 import fs from 'node:fs/promises'
 import os from 'node:os'
 import path from 'node:path'
-import { dialog, shell } from 'electron'
+import { pathToFileURL } from 'node:url'
+import { promisify } from 'node:util'
+import { clipboard, dialog, shell } from 'electron'
 import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
+import { scopedLoggers } from '../../utils/logger'
+
+const execFileAsync = promisify(execFile)
 
 class FileSystemService extends IpcService {
   static readonly groupName = 'fs'
@@ -36,7 +41,23 @@ class FileSystemService extends IpcService {
 
   @IpcMethod()
   getDefaultDownloadPath(_context: IpcContext): string {
-    return `${os.homedir()}/Downloads`
+    const fallbackPath = path.join(os.homedir(), 'Downloads')
+
+    if (process.platform === 'linux' || process.platform === 'freebsd') {
+      try {
+        const xdgPath = execSync('xdg-user-dir DOWNLOAD', { encoding: 'utf8' }).trim()
+        if (xdgPath) {
+          return xdgPath
+        }
+      } catch (error) {
+        scopedLoggers.system.warn(
+          'Unable to resolve XDG download directory, falling back to default:',
+          error
+        )
+      }
+    }
+
+    return fallbackPath
   }
 
   @IpcMethod()
@@ -56,108 +77,74 @@ class FileSystemService extends IpcService {
       }
 
       if (stats?.isDirectory()) {
-        const candidate = await this.findLikelyFile(normalizedPath, normalizedPath)
-        if (candidate) {
-          shell.showItemInFolder(candidate)
-          return true
-        }
-
         const result = await shell.openPath(normalizedPath)
         if (result) {
-          console.error('Failed to open directory:', result)
+          scopedLoggers.system.error('Failed to open directory:', result)
           return false
         }
         return true
       }
 
-      const fallbackDirectory = path.dirname(normalizedPath)
-      const fallbackCandidate = await this.findLikelyFile(fallbackDirectory, normalizedPath)
-      if (fallbackCandidate) {
-        shell.showItemInFolder(fallbackCandidate)
+      // If the exact path doesn't exist, try to open the parent directory
+      const parentDirectory = path.dirname(normalizedPath)
+      const parentStats = await fs.stat(parentDirectory).catch(() => null)
+
+      if (parentStats?.isDirectory()) {
+        const result = await shell.openPath(parentDirectory)
+        if (result) {
+          scopedLoggers.system.error('Failed to open parent directory:', result)
+          return false
+        }
         return true
       }
 
-      const result = await shell.openPath(fallbackDirectory)
-      if (!result) {
-        return true
-      }
-      console.error('Failed to open directory:', result)
+      scopedLoggers.system.error('File or directory does not exist:', normalizedPath)
+      return false
     } catch (error) {
-      try {
-        const directory = path.dirname(path.normalize(this.sanitizePath(filePath)))
-        const dirStats = await fs.stat(directory)
-        if (dirStats.isDirectory()) {
-          const fallbackCandidate = await this.findLikelyFile(directory, directory)
-          if (fallbackCandidate) {
-            shell.showItemInFolder(fallbackCandidate)
-            return true
-          }
-          const result = await shell.openPath(directory)
-          if (result) {
-            console.error('Failed to open directory:', result)
-            return false
-          }
-          return true
-        }
-      } catch (dirError) {
-        console.error('Failed to open parent directory:', dirError)
-      }
-      console.error('Failed to open file location:', error)
+      scopedLoggers.system.error('Failed to open file location:', error)
       return false
     }
+  }
 
-    return false
+  @IpcMethod()
+  async copyFileToClipboard(_context: IpcContext, filePath: string): Promise<boolean> {
+    try {
+      if (!filePath) {
+        return false
+      }
+
+      const sanitizedPath = this.sanitizePath(filePath)
+      const normalizedPath = path.normalize(sanitizedPath)
+      const stats = await fs.stat(normalizedPath)
+      if (!stats.isFile()) {
+        return false
+      }
+
+      const resolvedPath = path.resolve(normalizedPath)
+
+      await this.copyFileToClipboardByPlatform(resolvedPath)
+
+      return true
+    } catch (error) {
+      scopedLoggers.system.error('Failed to copy file to clipboard:', error)
+      return false
+    }
   }
 
   private sanitizePath(target: string): string {
     return target.trim().replace(/^['"]|['"]$/g, '')
   }
 
-  private async findLikelyFile(directory: string, expectedPath: string): Promise<string | null> {
-    try {
-      const dirStats = await fs.stat(directory)
-      if (!dirStats.isDirectory()) {
-        return null
-      }
-
-      const entries = await fs.readdir(directory, { withFileTypes: true })
-      const files = entries.filter((entry: Dirent) => entry.isFile())
-      if (files.length === 0) {
-        return null
-      }
-
-      const expectedBase = path.basename(expectedPath).toLowerCase()
-      const expectedName = path.parse(expectedPath).name.toLowerCase()
-
-      const exactMatch = files.find((entry) => entry.name.toLowerCase() === expectedBase)
-      if (exactMatch) {
-        return path.join(directory, exactMatch.name)
-      }
-
-      if (expectedName) {
-        const partialMatch = files.find((entry) => entry.name.toLowerCase().includes(expectedName))
-        if (partialMatch) {
-          return path.join(directory, partialMatch.name)
-        }
-      }
-
-      let latestMatch: { filePath: string; mtimeMs: number } | null = null
-      for (const entry of files) {
-        const candidatePath = path.join(directory, entry.name)
-        try {
-          const candidateStats = await fs.stat(candidatePath)
-          if (!latestMatch || candidateStats.mtimeMs > latestMatch.mtimeMs) {
-            latestMatch = { filePath: candidatePath, mtimeMs: candidateStats.mtimeMs }
-          }
-        } catch (statError) {
-          console.error('Failed to stat candidate file:', statError)
-        }
-      }
-
-      return latestMatch?.filePath ?? null
-    } catch (error) {
-      console.error('Failed to search for matching file:', error)
-      return null
+  private async copyFileToClipboardByPlatform(resolvedPath: string): Promise<void> {
+    switch (process.platform) {
+      case 'win32':
+        await this.copyFileToClipboardWindows(resolvedPath)
+        return
+      case 'darwin':
+        await this.copyFileToClipboardMac(resolvedPath)
+        return
+      default:
+        await this.copyFileToClipboardLinux(resolvedPath)
     }
   }
 
@@ -167,7 +154,158 @@ class FileSystemService extends IpcService {
       await shell.openExternal(url)
       return true
     } catch (error) {
-      console.error('Failed to open external URL:', error)
+      scopedLoggers.system.error('Failed to open external URL:', error)
+      return false
+    }
+  }
+
+  private async copyFileToClipboardWindows(resolvedPath: string): Promise<void> {
+    const escaped = resolvedPath.replace(/'/g, "''")
+    try {
+      await execFileAsync('powershell.exe', [
+        '-NoLogo',
+        '-NoProfile',
+        '-Command',
+        `Set-Clipboard -Path '${escaped}'`
+      ])
+      return
+    } catch (error) {
+      scopedLoggers.system.error(
+        'PowerShell clipboard copy failed, falling back to manual buffer:',
+        error
+      )
+    }
+
+    const winPath = resolvedPath.replace(/\//g, '\\')
+    const fileList = `${winPath}\u0000\u0000`
+    const encodedList = Buffer.from(fileList, 'ucs2')
+
+    const dropFilesStructSize = 20
+    const buffer = Buffer.alloc(dropFilesStructSize + encodedList.length)
+    buffer.writeUInt32LE(dropFilesStructSize, 0)
+    buffer.writeInt32LE(0, 4)
+    buffer.writeInt32LE(0, 8)
+    buffer.writeUInt32LE(0, 12)
+    buffer.writeUInt32LE(1, 16)
+    encodedList.copy(buffer, dropFilesStructSize)
+
+    clipboard.writeBuffer('CF_HDROP', buffer)
+    clipboard.writeBuffer('Preferred DropEffect', Buffer.from([1, 0, 0, 0]))
+    clipboard.writeBuffer('FileNameW', Buffer.from(`${path.basename(resolvedPath)}\u0000`, 'ucs2'))
+    clipboard.writeBuffer('FileName', Buffer.from(`${path.basename(resolvedPath)}\u0000`, 'ascii'))
+  }
+
+  private async copyFileToClipboardMac(resolvedPath: string): Promise<void> {
+    const escaped = resolvedPath.replace(/\\/g, '\\\\').replace(/"/g, '\\"')
+    try {
+      await execFileAsync('osascript', ['-e', `set the clipboard to (POSIX file "${escaped}")`])
+      return
+    } catch (error) {
+      scopedLoggers.system.error(
+        'osascript clipboard copy failed, falling back to manual buffer:',
+        error
+      )
+    }
+
+    const entries = [
+      '<?xml version="1.0" encoding="UTF-8"?>',
+      '<!DOCTYPE plist PUBLIC "-//Apple//DTD PLIST 1.0//EN" "http://www.apple.com/DTDs/PropertyList-1.0.dtd">',
+      '<plist version="1.0">',
+      '<array>',
+      `  <string>${this.escapeForPlist(resolvedPath)}</string>`,
+      '</array>',
+      '</plist>'
+    ]
+    const plist = Buffer.from(entries.join('\n'), 'utf8')
+    clipboard.writeBuffer('NSFilenamesPboardType', plist)
+
+    const fileUrl = pathToFileURL(resolvedPath).toString()
+    clipboard.writeBuffer('public.file-url', Buffer.from(`${fileUrl}\n`, 'utf8'))
+  }
+
+  private async copyFileToClipboardLinux(resolvedPath: string): Promise<void> {
+    const fileUrl = pathToFileURL(resolvedPath).toString()
+    const content = `copy\n${fileUrl}`
+    clipboard.writeBuffer('x-special/gnome-copied-files', Buffer.from(content, 'utf8'))
+    clipboard.writeBuffer('text/uri-list', Buffer.from(`${fileUrl}\n`, 'utf8'))
+  }
+
+  private escapeForPlist(value: string): string {
+    return value
+      .replace(/&/g, '&amp;')
+      .replace(/</g, '&lt;')
+      .replace(/>/g, '&gt;')
+      .replace(/"/g, '&quot;')
+      .replace(/'/g, '&apos;')
+  }
+
+  @IpcMethod()
+  async fileExists(_context: IpcContext, filePath: string): Promise<boolean> {
+    try {
+      if (!filePath) {
+        return false
+      }
+
+      const sanitizedPath = this.sanitizePath(filePath)
+      const normalizedPath = path.normalize(sanitizedPath)
+
+      const stats = await fs.stat(normalizedPath).catch(() => null)
+
+      return stats?.isFile() ?? false
+    } catch (error) {
+      scopedLoggers.system.error('Failed to check file existence:', error)
+      return false
+    }
+  }
+
+  @IpcMethod()
+  async deleteFile(_context: IpcContext, filePath: string): Promise<boolean> {
+    try {
+      if (!filePath) {
+        return false
+      }
+
+      const sanitizedPath = this.sanitizePath(filePath)
+      const normalizedPath = path.normalize(sanitizedPath)
+
+      const stats = await fs.stat(normalizedPath).catch((error) => {
+        const err = error as NodeJS.ErrnoException
+        if (err?.code === 'ENOENT') {
+          return null
+        }
+        throw error
+      })
+
+      if (!stats) {
+        return false
+      }
+
+      if (stats.isFile()) {
+        await fs.unlink(normalizedPath).catch((error) => {
+          const err = error as NodeJS.ErrnoException
+          if (err?.code !== 'ENOENT') {
+            throw error
+          }
+        })
+        return true
+      }
+
+      if (stats.isDirectory()) {
+        const entries = await fs.readdir(normalizedPath)
+        if (entries.length === 0) {
+          await fs.rmdir(normalizedPath).catch((error) => {
+            const err = error as NodeJS.ErrnoException
+            if (err?.code !== 'ENOENT') {
+              throw error
+            }
+          })
+          return true
+        }
+      }
+
+      return false
+    } catch (error) {
+      scopedLoggers.system.error('Failed to delete file:', error)
       return false
     }
   }

src/main/ipc/services/history-service.ts

@@ -1,9 +1,6 @@
-import fs from 'node:fs/promises'
-import path from 'node:path'
 import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
 import type { DownloadHistoryItem } from '../../../shared/types'
 import { historyManager } from '../../lib/history-manager'
-import { settingsManager } from '../../settings'
 
 class HistoryService extends IpcService {
   static readonly groupName = 'history'
@@ -24,280 +21,23 @@ class HistoryService extends IpcService {
   }
 
   @IpcMethod()
-  async removeHistoryItem(_context: IpcContext, id: string, outputPath?: string): Promise<boolean> {
-    const record = historyManager.getHistoryById(id)
-
-    await this.deleteOutputResource(record, outputPath)
-
+  removeHistoryItem(_context: IpcContext, id: string): boolean {
     return historyManager.removeHistoryItem(id)
   }
 
-  private async deleteOutputResource(
-    record: DownloadHistoryItem | undefined,
-    fallbackOutputPath?: string
-  ): Promise<void> {
-    try {
-      const candidatePaths = new Set<string>()
-      if (record?.outputPath) {
-        candidatePaths.add(record.outputPath)
-      }
-      if (fallbackOutputPath) {
-        candidatePaths.add(fallbackOutputPath)
-      }
-
-      for (const candidate of candidatePaths) {
-        if (await this.tryDeletePath(candidate)) {
-          return
-        }
-      }
-
-      const directories = this.collectCandidateDirectories(candidatePaths)
-      if (directories.length === 0) {
-        const defaultDownloadPath = settingsManager.get('downloadPath')
-        if (defaultDownloadPath) {
-          directories.push(defaultDownloadPath)
-        }
-      }
-
-      const matchKeys = this.collectMatchKeys(record, candidatePaths)
-      if (matchKeys.length === 0) {
-        return
-      }
-
-      const extensions = this.collectExtensions(candidatePaths, record)
-      for (const directory of directories) {
-        const matchedPath = await this.findMatchingFile(directory, matchKeys, extensions, record)
-        if (matchedPath && (await this.tryDeletePath(matchedPath))) {
-          return
-        }
-      }
-    } catch (error) {
-      console.error('Failed to delete output resource:', error)
-    }
+  @IpcMethod()
+  removeHistoryItems(_context: IpcContext, ids: string[]): number {
+    return historyManager.removeHistoryItems(ids)
   }
 
-  private sanitizePath(target: string): string {
-    return target.trim().replace(/^['"]|['"]$/g, '')
+  @IpcMethod()
+  removeHistoryByPlaylistId(_context: IpcContext, playlistId: string): number {
+    return historyManager.removeHistoryByPlaylistId(playlistId)
   }
 
-  private normalizeMatchString(value?: string): string {
-    if (!value) {
-      return ''
-    }
-    return value
-      .normalize('NFKC')
-      .toLowerCase()
-      .replace(/[^\p{L}\p{N}]+/gu, '')
-  }
-
-  private collectCandidateDirectories(candidatePaths: Set<string>): string[] {
-    const directories = new Set<string>()
-    for (const candidate of candidatePaths) {
-      const sanitized = this.sanitizePath(candidate)
-      if (!sanitized) continue
-      const normalized = path.normalize(sanitized)
-      if (!path.isAbsolute(normalized)) continue
-      const directory = path.dirname(normalized)
-      if (directory) {
-        directories.add(directory)
-      }
-    }
-    return Array.from(directories)
-  }
-
-  private collectExtensions(
-    candidatePaths: Set<string>,
-    record: DownloadHistoryItem | undefined
-  ): Set<string> {
-    const extensions = new Set<string>()
-
-    const addExtension = (ext?: string) => {
-      if (!ext) {
-        return
-      }
-      const trimmed = ext.trim()
-      if (!trimmed) {
-        return
-      }
-      const normalized = trimmed.startsWith('.')
-        ? trimmed.toLowerCase()
-        : `.${trimmed.toLowerCase()}`
-      extensions.add(normalized)
-    }
-
-    for (const candidate of candidatePaths) {
-      const sanitized = this.sanitizePath(candidate)
-      if (!sanitized) continue
-      addExtension(path.extname(sanitized))
-    }
-
-    addExtension(record?.outputPath ? path.extname(record.outputPath) : undefined)
-    addExtension(record?.selectedFormat?.ext)
-    addExtension(record?.selectedFormat?.video_ext)
-    addExtension(record?.selectedFormat?.audio_ext)
-
-    if (extensions.size === 0) {
-      const fallback =
-        record?.type === 'audio'
-          ? ['.mp3', '.m4a', '.aac', '.ogg', '.opus', '.flac', '.wav']
-          : ['.mp4', '.mkv', '.webm', '.mov', '.avi']
-      for (const ext of fallback) {
-        extensions.add(ext)
-      }
-    }
-
-    return extensions
-  }
-
-  private collectMatchKeys(
-    record: DownloadHistoryItem | undefined,
-    candidatePaths: Set<string>
-  ): string[] {
-    const keys = new Set<string>()
-    const fallbackKeys: string[] = []
-
-    const tryAddKey = (value?: string) => {
-      if (!value) return
-      const normalized = this.normalizeMatchString(value)
-      if (!normalized) return
-      if (normalized.length >= 3) {
-        keys.add(normalized)
-      } else {
-        fallbackKeys.push(normalized)
-      }
-    }
-
-    for (const candidate of candidatePaths) {
-      const sanitized = this.sanitizePath(candidate)
-      if (!sanitized) continue
-      const baseName = path.parse(sanitized).name
-      tryAddKey(baseName)
-    }
-
-    tryAddKey(record?.title)
-    tryAddKey(record?.id)
-
-    if (keys.size === 0) {
-      for (const key of fallbackKeys) {
-        keys.add(key)
-      }
-    }
-
-    return Array.from(keys)
-  }
-
-  private async findMatchingFile(
-    directory: string,
-    matchKeys: string[],
-    extensions: Set<string>,
-    record: DownloadHistoryItem | undefined
-  ): Promise<string | null> {
-    try {
-      const dirStats = await fs.stat(directory).catch((error) => {
-        const err = error as NodeJS.ErrnoException
-        if (err?.code === 'ENOENT') {
-          return null
-        }
-        throw error
-      })
-
-      if (!dirStats || !dirStats.isDirectory()) {
-        return null
-      }
-
-      const entries = await fs.readdir(directory, { withFileTypes: true })
-      const matches: Array<{ path: string; diff: number }> = []
-      const targetTimestamp = record?.completedAt ?? record?.downloadedAt
-      const maxDiff = 10 * 60 * 1000 // 10 minutes
-
-      for (const entry of entries) {
-        if (!entry.isFile()) continue
-
-        const entryPath = path.join(directory, entry.name)
-        const entryExt = path.extname(entry.name).toLowerCase()
-        if (extensions.size > 0 && entryExt && !extensions.has(entryExt)) {
-          continue
-        }
-
-        const normalizedName = this.normalizeMatchString(entry.name)
-        if (!normalizedName && matchKeys.length > 0) continue
-
-        const hasMatchKeys = matchKeys.length > 0
-        const isMatch = hasMatchKeys
-          ? matchKeys.some((key) => key && normalizedName.includes(key))
-          : true
-        if (!isMatch) continue
-
-        const stats = await fs.stat(entryPath).catch(() => null)
-        if (!stats) continue
-
-        if (targetTimestamp) {
-          const diff = Math.abs(stats.mtimeMs - targetTimestamp)
-          if (diff > maxDiff) {
-            continue
-          }
-          matches.push({ path: entryPath, diff })
-        } else {
-          if (!hasMatchKeys) {
-            continue
-          }
-          matches.push({ path: entryPath, diff: Number.POSITIVE_INFINITY })
-        }
-      }
-
-      if (matches.length === 0) {
-        return null
-      }
-
-      matches.sort((a, b) => a.diff - b.diff)
-      return matches[0]?.path ?? null
-    } catch (error) {
-      console.error('Failed to search for matching file:', error)
-      return null
-    }
-  }
-
-  private async tryDeletePath(rawPath: string): Promise<boolean> {
-    const sanitizedPath = this.sanitizePath(rawPath)
-    if (!sanitizedPath) return false
-
-    const normalizedPath = path.normalize(sanitizedPath)
-    const stats = await fs.stat(normalizedPath).catch((error) => {
-      const err = error as NodeJS.ErrnoException
-      if (err?.code === 'ENOENT') {
-        return null
-      }
-      throw error
-    })
-
-    if (!stats) {
-      return false
-    }
-
-    if (stats.isFile()) {
-      await fs.unlink(normalizedPath).catch((error) => {
-        const err = error as NodeJS.ErrnoException
-        if (err?.code !== 'ENOENT') {
-          throw error
-        }
-      })
-      return true
-    }
-
-    if (stats.isDirectory()) {
-      const entries = await fs.readdir(normalizedPath)
-      if (entries.length === 0) {
-        await fs.rmdir(normalizedPath).catch((error) => {
-          const err = error as NodeJS.ErrnoException
-          if (err?.code !== 'ENOENT') {
-            throw error
-          }
-        })
-        return true
-      }
-    }
-
-    return false
+  @IpcMethod()
+  clearHistory(_context: IpcContext): void {
+    historyManager.clearHistory()
   }
 
   @IpcMethod()

src/main/ipc/services/settings-service.ts

@@ -2,6 +2,8 @@ import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
 import type { AppSettings } from '../../../shared/types'
 import { settingsManager } from '../../settings'
 import { updateTrayMenu } from '../../tray'
+import { applyAutoLaunchSetting } from '../../utils/auto-launch'
+import { applyDockVisibility } from '../../utils/dock'
 
 class SettingsService extends IpcService {
   static readonly groupName = 'settings'
@@ -18,6 +20,14 @@ class SettingsService extends IpcService {
     if (key === 'language') {
       updateTrayMenu()
     }
+
+    if (key === 'hideDockIcon') {
+      applyDockVisibility(value as AppSettings['hideDockIcon'])
+    }
+
+    if (key === 'launchAtLogin') {
+      applyAutoLaunchSetting(value as AppSettings['launchAtLogin'])
+    }
   }
 
   @IpcMethod()
@@ -32,11 +42,21 @@ class SettingsService extends IpcService {
     if (settings.language) {
       updateTrayMenu()
     }
+
+    if (typeof settings.hideDockIcon === 'boolean') {
+      applyDockVisibility(settings.hideDockIcon)
+    }
+
+    if (typeof settings.launchAtLogin === 'boolean') {
+      applyAutoLaunchSetting(settings.launchAtLogin)
+    }
   }
 
   @IpcMethod()
   reset(_context: IpcContext): void {
     settingsManager.reset()
+    applyDockVisibility(settingsManager.get('hideDockIcon'))
+    applyAutoLaunchSetting(settingsManager.get('launchAtLogin'))
   }
 }
 

src/main/ipc/services/subscription-service.ts

@@ -0,0 +1,167 @@
+import path from 'node:path'
+import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
+import type {
+  SubscriptionCreatePayload,
+  SubscriptionResolvedFeed,
+  SubscriptionRule,
+  SubscriptionUpdatePayload
+} from '../../../shared/types'
+import { DEFAULT_SUBSCRIPTION_FILENAME_TEMPLATE } from '../../../shared/types'
+import { sanitizeFilenameTemplate } from '../../download-engine/args-builder'
+import { subscriptionManager } from '../../lib/subscription-manager'
+import { subscriptionScheduler } from '../../lib/subscription-scheduler'
+import { settingsManager } from '../../settings'
+
+interface CreateSubscriptionOptions {
+  url: string
+  keywords?: string[]
+  tags?: string[]
+  onlyDownloadLatest?: boolean
+  downloadDirectory?: string
+  namingTemplate?: string
+  enabled?: boolean
+}
+
+const ensureUrlHasProtocol = (value: string): string => {
+  if (!value) {
+    return value
+  }
+  if (!/^https?:\/\//i.test(value)) {
+    return `https://${value}`
+  }
+  return value
+}
+
+const resolveFeedFromInput = (rawUrl: string): SubscriptionResolvedFeed => {
+  const normalized = ensureUrlHasProtocol(rawUrl.trim())
+  const youTubeChannelMatch = normalized.match(/youtube\.com\/channel\/([A-Za-z0-9_-]+)/i)
+  if (youTubeChannelMatch) {
+    return {
+      sourceUrl: normalized,
+      feedUrl: `https://www.youtube.com/feeds/videos.xml?channel_id=${youTubeChannelMatch[1]}`,
+      platform: 'youtube'
+    }
+  }
+
+  if (/youtube\.com\/feeds\/videos\.xml/i.test(normalized)) {
+    return {
+      sourceUrl: normalized,
+      feedUrl: normalized,
+      platform: 'youtube'
+    }
+  }
+
+  const youTubeUserMatch = normalized.match(/youtube\.com\/(?:user|c)\/([^/?]+)/i)
+  if (youTubeUserMatch) {
+    return {
+      sourceUrl: normalized,
+      feedUrl: `https://www.youtube.com/feeds/videos.xml?user=${youTubeUserMatch[1]}`,
+      platform: 'youtube'
+    }
+  }
+
+  const youTubeHandleMatch = normalized.match(/youtube\.com\/(@[^/?]+)/i)
+  if (youTubeHandleMatch) {
+    const handle = youTubeHandleMatch[1].replace('@', '')
+    return {
+      sourceUrl: normalized,
+      feedUrl: `https://www.youtube.com/feeds/videos.xml?user=${handle}`,
+      platform: 'youtube'
+    }
+  }
+
+  const biliSpaceMatch = normalized.match(/bilibili\.com\/(?:space|user)\/(\d+)/i)
+  if (biliSpaceMatch) {
+    return {
+      sourceUrl: normalized,
+      feedUrl: `https://rsshub.app/bilibili/user/video/${biliSpaceMatch[1]}`,
+      platform: 'bilibili'
+    }
+  }
+
+  if (/rsshub\.app\/bilibili/i.test(normalized)) {
+    return {
+      sourceUrl: normalized,
+      feedUrl: normalized,
+      platform: 'bilibili'
+    }
+  }
+
+  return {
+    sourceUrl: normalized,
+    feedUrl: normalized,
+    platform: 'custom'
+  }
+}
+
+class SubscriptionService extends IpcService {
+  static readonly groupName = 'subscriptions'
+
+  @IpcMethod()
+  list(_context: IpcContext): SubscriptionRule[] {
+    return subscriptionManager.getAll()
+  }
+
+  @IpcMethod()
+  resolve(_context: IpcContext, url: string): SubscriptionResolvedFeed {
+    return resolveFeedFromInput(url)
+  }
+
+  @IpcMethod()
+  async create(
+    _context: IpcContext,
+    options: CreateSubscriptionOptions
+  ): Promise<SubscriptionRule> {
+    const resolved = resolveFeedFromInput(options.url)
+    const settings = settingsManager.getAll()
+    const defaultDownloadDirectory = path.join(settings.downloadPath, 'Subscriptions')
+    const payload: SubscriptionCreatePayload = {
+      sourceUrl: resolved.sourceUrl,
+      feedUrl: resolved.feedUrl,
+      platform: resolved.platform,
+      keywords: options.keywords,
+      tags: options.tags,
+      onlyDownloadLatest:
+        options.onlyDownloadLatest ?? settings.subscriptionOnlyLatestDefault ?? true,
+      downloadDirectory: options.downloadDirectory || defaultDownloadDirectory,
+      namingTemplate: sanitizeFilenameTemplate(
+        options.namingTemplate || DEFAULT_SUBSCRIPTION_FILENAME_TEMPLATE
+      ),
+      enabled: options.enabled ?? true
+    }
+
+    const created = subscriptionManager.add(payload)
+    void subscriptionScheduler.runNow(created.id)
+    return created
+  }
+
+  @IpcMethod()
+  update(
+    _context: IpcContext,
+    id: string,
+    updates: SubscriptionUpdatePayload
+  ): SubscriptionRule | undefined {
+    const normalized: SubscriptionUpdatePayload = { ...updates }
+    if (typeof normalized.namingTemplate === 'string') {
+      normalized.namingTemplate = sanitizeFilenameTemplate(normalized.namingTemplate)
+    }
+    return subscriptionManager.update(id, normalized)
+  }
+
+  @IpcMethod()
+  remove(_context: IpcContext, id: string): boolean {
+    return subscriptionManager.remove(id)
+  }
+
+  @IpcMethod()
+  async refresh(_context: IpcContext, id?: string): Promise<void> {
+    await subscriptionScheduler.runNow(id)
+  }
+
+  @IpcMethod()
+  async queueItem(_context: IpcContext, id: string, itemId: string): Promise<boolean> {
+    return subscriptionScheduler.queueItem(id, itemId)
+  }
+}
+
+export { SubscriptionService }

src/main/ipc/services/update-service.ts

@@ -3,6 +3,33 @@ import { type IpcContext, IpcMethod, IpcService } from 'electron-ipc-decorator'
 import { autoUpdater } from 'electron-updater'
 import { settingsManager } from '../../settings'
 
+const isNewerVersion = (latest: string, current: string): boolean => {
+  const toSegments = (version: string) =>
+    version.split(/[.-]/).map((segment) => {
+      const parsed = Number.parseInt(segment, 10)
+      return Number.isNaN(parsed) ? 0 : parsed
+    })
+
+  const latestSegments = toSegments(latest)
+  const currentSegments = toSegments(current)
+  const maxLength = Math.max(latestSegments.length, currentSegments.length)
+
+  for (let index = 0; index < maxLength; index += 1) {
+    const latestValue = latestSegments[index] ?? 0
+    const currentValue = currentSegments[index] ?? 0
+
+    if (latestValue > currentValue) {
+      return true
+    }
+
+    if (latestValue < currentValue) {
+      return false
+    }
+  }
+
+  return false
+}
+
 class UpdateService extends IpcService {
   static readonly groupName = 'update'
 
@@ -11,11 +38,20 @@ class UpdateService extends IpcService {
     _context: IpcContext
   ): Promise<{ available: boolean; version?: string; error?: string }> {
     try {
-      // In production, use checkForUpdatesAndNotify for automatic notifications
-      const result = await autoUpdater.checkForUpdatesAndNotify()
+      const currentVersion = app.getVersion()
+      const result = await autoUpdater.checkForUpdates()
+      const latestVersion = result?.updateInfo?.version
+
+      if (latestVersion && isNewerVersion(latestVersion, currentVersion)) {
+        return {
+          available: true,
+          version: latestVersion
+        }
+      }
+
       return {
-        available: result !== null,
-        version: result?.updateInfo?.version
+        available: false,
+        version: latestVersion ?? currentVersion
       }
     } catch (error) {
       return {

src/main/lib/database-path.ts

@@ -0,0 +1,6 @@
+import { join } from 'node:path'
+import { app } from 'electron'
+
+export const getDatabaseFilePath = (): string => {
+  return join(app.getPath('userData'), 'vidbee.db')
+}

src/main/lib/database/migrate.ts

@@ -0,0 +1,97 @@
+import { existsSync } from 'node:fs'
+import { join, resolve } from 'node:path'
+import { sql } from 'drizzle-orm'
+import type { BetterSQLite3Database } from 'drizzle-orm/better-sqlite3'
+import { migrate } from 'drizzle-orm/better-sqlite3/migrator'
+import { type MigrationMeta, readMigrationFiles } from 'drizzle-orm/migrator'
+import { app } from 'electron'
+import log from 'electron-log/main'
+
+const MIGRATIONS_RELATIVE_PATH = 'resources/drizzle'
+const MIGRATIONS_TABLE = '__drizzle_migrations'
+const KNOWN_TABLES = ['download_history', 'subscriptions', 'subscription_items']
+
+const migrationsTableDefinition = sql`
+  CREATE TABLE IF NOT EXISTS ${sql.identifier(MIGRATIONS_TABLE)} (
+    id SERIAL PRIMARY KEY,
+    hash text NOT NULL,
+    created_at numeric
+  )
+`
+
+export const runMigrations = (database: BetterSQLite3Database): void => {
+  const migrationsFolder = resolveMigrationsFolder()
+  if (!migrationsFolder) {
+    log.warn('database: drizzle migrations folder not found, skipping migrations')
+    return
+  }
+
+  try {
+    ensureBaseline(database, migrationsFolder)
+    migrate(database, { migrationsFolder, migrationsTable: MIGRATIONS_TABLE })
+  } catch (error) {
+    log.error('database: failed to run drizzle migrations', error)
+  }
+}
+
+const resolveMigrationsFolder = (): string | null => {
+  const candidates = new Set<string>()
+  candidates.add(resolve(process.cwd(), MIGRATIONS_RELATIVE_PATH))
+  candidates.add(resolve(__dirname, '../../../../', MIGRATIONS_RELATIVE_PATH))
+
+  if (process.resourcesPath) {
+    candidates.add(join(process.resourcesPath, MIGRATIONS_RELATIVE_PATH))
+    candidates.add(join(process.resourcesPath, 'app.asar.unpacked', MIGRATIONS_RELATIVE_PATH))
+  }
+
+  try {
+    candidates.add(join(app.getAppPath(), MIGRATIONS_RELATIVE_PATH))
+  } catch {
+    // app might not be ready yet, ignore
+  }
+
+  for (const candidate of candidates) {
+    if (existsSync(candidate)) {
+      return candidate
+    }
+  }
+
+  return null
+}
+
+const ensureBaseline = (database: BetterSQLite3Database, migrationsFolder: string): void => {
+  if (hasTable(database, MIGRATIONS_TABLE)) {
+    return
+  }
+
+  const hasExistingSchema = KNOWN_TABLES.some((table) => hasTable(database, table))
+  if (!hasExistingSchema) {
+    return
+  }
+
+  log.info('database: detected existing schema, seeding drizzle migrations baseline')
+  database.run(migrationsTableDefinition)
+
+  let migrations: MigrationMeta[]
+  try {
+    migrations = readMigrationFiles({ migrationsFolder, migrationsTable: MIGRATIONS_TABLE })
+  } catch (error) {
+    log.error('database: failed to read drizzle migrations while seeding baseline', error)
+    return
+  }
+
+  database.transaction((tx) => {
+    for (const migration of migrations) {
+      tx.run(
+        sql`INSERT INTO ${sql.identifier(MIGRATIONS_TABLE)} ("hash", "created_at") VALUES(${migration.hash}, ${migration.folderMillis})`
+      )
+    }
+  })
+}
+
+const hasTable = (database: BetterSQLite3Database, tableName: string): boolean => {
+  const rows = database.all<{ name: string }>(
+    sql`SELECT name FROM sqlite_master WHERE type = 'table' AND name = ${tableName}`
+  )
+  return rows.length > 0
+}

src/main/lib/database/schema.ts

@@ -0,0 +1,83 @@
+import { index, integer, primaryKey, sqliteTable, text } from 'drizzle-orm/sqlite-core'
+
+export const downloadHistoryTable = sqliteTable('download_history', {
+  id: text('id').primaryKey(),
+  url: text('url').notNull(),
+  title: text('title').notNull(),
+  thumbnail: text('thumbnail'),
+  type: text('type').notNull(),
+  status: text('status').notNull(),
+  downloadPath: text('download_path'),
+  savedFileName: text('saved_file_name'),
+  fileSize: integer('file_size', { mode: 'number' }),
+  duration: integer('duration', { mode: 'number' }),
+  downloadedAt: integer('downloaded_at', { mode: 'number' }).notNull(),
+  completedAt: integer('completed_at', { mode: 'number' }),
+  sortKey: integer('sort_key', { mode: 'number' }).notNull(),
+  error: text('error'),
+  description: text('description'),
+  channel: text('channel'),
+  uploader: text('uploader'),
+  viewCount: integer('view_count', { mode: 'number' }),
+  tags: text('tags'),
+  origin: text('origin'),
+  subscriptionId: text('subscription_id'),
+  selectedFormat: text('selected_format'),
+  playlistId: text('playlist_id'),
+  playlistTitle: text('playlist_title'),
+  playlistIndex: integer('playlist_index', { mode: 'number' }),
+  playlistSize: integer('playlist_size', { mode: 'number' })
+})
+
+export const subscriptionsTable = sqliteTable('subscriptions', {
+  id: text('id').primaryKey(),
+  title: text('title').notNull(),
+  sourceUrl: text('source_url').notNull(),
+  feedUrl: text('feed_url').notNull(),
+  platform: text('platform').notNull(),
+  keywords: text('keywords').notNull(),
+  tags: text('tags').notNull(),
+  onlyDownloadLatest: integer('only_latest', { mode: 'number' }).notNull(),
+  enabled: integer('enabled', { mode: 'number' }).notNull(),
+  coverUrl: text('cover_url'),
+  latestVideoTitle: text('latest_video_title'),
+  latestVideoPublishedAt: integer('latest_video_published_at', { mode: 'number' }),
+  lastCheckedAt: integer('last_checked_at', { mode: 'number' }),
+  lastSuccessAt: integer('last_success_at', { mode: 'number' }),
+  status: text('status').notNull(),
+  lastError: text('last_error'),
+  createdAt: integer('created_at', { mode: 'number' }).notNull(),
+  updatedAt: integer('updated_at', { mode: 'number' }).notNull(),
+  downloadDirectory: text('download_directory'),
+  namingTemplate: text('naming_template')
+})
+
+export const subscriptionItemsTable = sqliteTable(
+  'subscription_items',
+  {
+    subscriptionId: text('subscription_id').notNull(),
+    itemId: text('item_id').notNull(),
+    title: text('title').notNull(),
+    url: text('url').notNull(),
+    publishedAt: integer('published_at', { mode: 'number' }).notNull(),
+    thumbnail: text('thumbnail'),
+    added: integer('added', { mode: 'number' }).notNull(),
+    downloadId: text('download_id'),
+    createdAt: integer('created_at', { mode: 'number' }).notNull(),
+    updatedAt: integer('updated_at', { mode: 'number' }).notNull()
+  },
+  (table) => ({
+    pk: primaryKey({
+      columns: [table.subscriptionId, table.itemId],
+      name: 'subscription_items_pk'
+    }),
+    subscriptionIdx: index('subscription_items_subscription_idx').on(table.subscriptionId)
+  })
+)
+
+export type DownloadHistoryRow = typeof downloadHistoryTable.$inferSelect
+export type DownloadHistoryInsert = typeof downloadHistoryTable.$inferInsert
+export type SubscriptionRow = typeof subscriptionsTable.$inferSelect
+export type SubscriptionInsert = typeof subscriptionsTable.$inferInsert
+export type SubscriptionItemRow = typeof subscriptionItemsTable.$inferSelect
+export type SubscriptionItemInsert = typeof subscriptionItemsTable.$inferInsert

src/main/lib/ffmpeg-manager.ts

@@ -0,0 +1,105 @@
+import { execSync } from 'node:child_process'
+import fs from 'node:fs'
+import os from 'node:os'
+import path from 'node:path'
+import { scopedLoggers } from '../utils/logger'
+
+class FfmpegManager {
+  private ffmpegPath: string | null = null
+
+  async initialize(): Promise<void> {
+    this.ffmpegPath = await this.findFfmpegBinary()
+    scopedLoggers.engine.info('ffmpeg initialized at:', this.ffmpegPath)
+  }
+
+  getPath(): string {
+    if (!this.ffmpegPath) {
+      throw new Error('ffmpeg not initialized. Call initialize() first.')
+    }
+    return this.ffmpegPath
+  }
+
+  private getResourcesPath(): string {
+    if (process.env.NODE_ENV === 'development') {
+      return path.join(process.cwd(), 'resources')
+    }
+    return path.join(process.resourcesPath, 'app.asar.unpacked', 'resources')
+  }
+
+  private async findFfmpegBinary(): Promise<string> {
+    const platform = os.platform()
+    const resourceCandidates: string[] = []
+
+    if (process.env.FFMPEG_PATH && fs.existsSync(process.env.FFMPEG_PATH)) {
+      scopedLoggers.engine.info('Using ffmpeg from FFMPEG_PATH:', process.env.FFMPEG_PATH)
+      return process.env.FFMPEG_PATH
+    }
+
+    if (platform === 'win32') {
+      resourceCandidates.push('ffmpeg.exe')
+    } else if (platform === 'darwin') {
+      resourceCandidates.push('ffmpeg_macos', 'ffmpeg')
+    } else {
+      resourceCandidates.push('ffmpeg_linux', 'ffmpeg')
+    }
+
+    const resourcesPath = this.getResourcesPath()
+    for (const candidate of resourceCandidates) {
+      const fullPath = path.join(resourcesPath, candidate)
+      if (fs.existsSync(fullPath)) {
+        if (platform !== 'win32') {
+          try {
+            fs.chmodSync(fullPath, 0o755)
+          } catch (error) {
+            scopedLoggers.engine.warn(
+              'Failed to set executable permission on ffmpeg binary:',
+              error
+            )
+          }
+        }
+        scopedLoggers.engine.info('Using bundled ffmpeg:', fullPath)
+        return fullPath
+      }
+    }
+
+    if (platform === 'darwin') {
+      const commonPaths = ['/opt/homebrew/bin/ffmpeg', '/usr/local/bin/ffmpeg']
+      for (const candidate of commonPaths) {
+        if (fs.existsSync(candidate)) {
+          scopedLoggers.engine.info('Using system ffmpeg:', candidate)
+          return candidate
+        }
+      }
+    }
+
+    if (platform === 'linux' || platform === 'freebsd') {
+      try {
+        const systemPath = execSync('which ffmpeg').toString().trim()
+        if (systemPath && fs.existsSync(systemPath)) {
+          scopedLoggers.engine.info('Using system ffmpeg:', systemPath)
+          return systemPath
+        }
+      } catch (_error) {
+        // Ignore error and continue
+      }
+    }
+
+    if (platform === 'win32') {
+      try {
+        const output = execSync('where ffmpeg').toString().split(/\r?\n/)[0]
+        if (output && fs.existsSync(output)) {
+          scopedLoggers.engine.info('Using system ffmpeg:', output)
+          return output
+        }
+      } catch (_error) {
+        // Ignore error and continue
+      }
+    }
+
+    throw new Error(
+      'ffmpeg not found. Bundle it under resources/ (asarUnpack) or set the FFMPEG_PATH environment variable.'
+    )
+  }
+}
+
+export const ffmpegManager = new FfmpegManager()

src/main/lib/history-manager.ts

@@ -1,52 +1,476 @@
-// Use require for electron-store to avoid CommonJS/ESM issues
-const ElectronStore = require('electron-store')
-// Access the default export
-const Store = ElectronStore.default || ElectronStore
-
+import { existsSync, readFileSync, renameSync } from 'node:fs'
+import { join } from 'node:path'
+import DatabaseConstructor from 'better-sqlite3'
+import { eq, inArray, sql } from 'drizzle-orm'
+import type { BetterSQLite3Database } from 'drizzle-orm/better-sqlite3'
+import { drizzle } from 'drizzle-orm/better-sqlite3'
+import { integer, sqliteTable, text } from 'drizzle-orm/sqlite-core'
+import { app } from 'electron'
+import log from 'electron-log/main'
 import type { DownloadHistoryItem } from '../../shared/types'
+import { runMigrations } from './database/migrate'
+import {
+  type DownloadHistoryInsert,
+  type DownloadHistoryRow,
+  downloadHistoryTable
+} from './database/schema'
+import { getDatabaseFilePath } from './database-path'
+
+const logger = log.scope('history-manager')
+
+const TAG_SEPARATOR = '\n'
+
+const createDownloadHistoryTableSql = sql`
+  CREATE TABLE IF NOT EXISTS download_history (
+    id TEXT PRIMARY KEY,
+    url TEXT NOT NULL,
+    title TEXT NOT NULL,
+    thumbnail TEXT,
+    type TEXT NOT NULL,
+    status TEXT NOT NULL,
+    download_path TEXT,
+    saved_file_name TEXT,
+    file_size INTEGER,
+    duration INTEGER,
+    downloaded_at INTEGER NOT NULL,
+    completed_at INTEGER,
+    sort_key INTEGER NOT NULL,
+    error TEXT,
+    description TEXT,
+    channel TEXT,
+    uploader TEXT,
+    view_count INTEGER,
+    tags TEXT,
+    origin TEXT,
+    subscription_id TEXT,
+    selected_format TEXT,
+    playlist_id TEXT,
+    playlist_title TEXT,
+    playlist_index INTEGER,
+    playlist_size INTEGER
+  )
+`
+
+const renameDownloadHistoryTableSql = sql`
+  ALTER TABLE download_history RENAME TO download_history_legacy
+`
+
+const dropLegacyDownloadHistoryTableSql = sql`
+  DROP TABLE download_history_legacy
+`
+
+const copyDownloadHistoryFromLegacySql = sql`
+  INSERT INTO download_history (
+    id,
+    url,
+    title,
+    thumbnail,
+    type,
+    status,
+    download_path,
+    saved_file_name,
+    file_size,
+    duration,
+    downloaded_at,
+    completed_at,
+    sort_key,
+    error,
+    description,
+    channel,
+    uploader,
+    view_count,
+    tags,
+    origin,
+    subscription_id,
+    selected_format,
+    playlist_id,
+    playlist_title,
+    playlist_index,
+    playlist_size
+  )
+  SELECT
+    id,
+    url,
+    title,
+    thumbnail,
+    type,
+    status,
+    download_path,
+    saved_file_name,
+    file_size,
+    duration,
+    downloaded_at,
+    completed_at,
+    sort_key,
+    error,
+    description,
+    channel,
+    uploader,
+    view_count,
+    tags,
+    origin,
+    subscription_id,
+    selected_format,
+    playlist_id,
+    playlist_title,
+    playlist_index,
+    playlist_size
+  FROM download_history_legacy
+`
+
+const sanitizeList = (values?: string[]): string[] => {
+  if (!values || values.length === 0) {
+    return []
+  }
+  return values
+    .map((value) => value.trim())
+    .filter((value, index, array) => value.length > 0 && array.indexOf(value) === index)
+}
+
+const serializeTags = (values?: string[]): string | null => {
+  const sanitized = sanitizeList(values)
+  return sanitized.length > 0 ? sanitized.join(TAG_SEPARATOR) : null
+}
+
+const parseTags = (value: string | null): string[] | undefined => {
+  if (!value) {
+    return undefined
+  }
+  const parsed = value
+    .split(TAG_SEPARATOR)
+    .map((tag) => tag.trim())
+    .filter((tag, index, array) => tag.length > 0 && array.indexOf(tag) === index)
+  return parsed.length > 0 ? parsed : undefined
+}
+
+const legacyDownloadHistoryTable = sqliteTable('download_history_legacy', {
+  id: text('id').primaryKey(),
+  status: text('status').notNull(),
+  downloadedAt: integer('downloaded_at', { mode: 'number' }).notNull(),
+  completedAt: integer('completed_at', { mode: 'number' }),
+  sortKey: integer('sort_key', { mode: 'number' }).notNull(),
+  payload: text('payload').notNull()
+})
+type LegacyDownloadHistoryRow = typeof legacyDownloadHistoryTable.$inferSelect
 
 class HistoryManager {
-  // biome-ignore lint/suspicious/noExplicitAny: electron-store requires dynamic import
-  private store: any
+  private db: BetterSQLite3Database | null = null
   private history: Map<string, DownloadHistoryItem> = new Map()
+  private schemaChecked = false
+  private migrationChecked = false
 
   constructor() {
-    this.store = new Store({
-      name: 'download-history',
-      defaults: {
-        items: []
-      }
-    })
-    this.loadHistory()
+    this.initialize()
   }
 
-  private loadHistory(): void {
+  private initialize(): void {
     try {
-      const historyArray = this.store.get('items', [])
-      this.history = new Map(historyArray.map((item) => [item.id, item]))
+      this.getDatabase()
+      this.ensureStructuredSchema()
+      this.ensureLegacyMigration()
+      this.loadHistoryFromDatabase()
     } catch (error) {
-      console.error('Failed to load download history:', error)
+      logger.error('history-db failed to initialize', error)
     }
   }
 
-  private saveHistory(): void {
+  private getDatabase(): BetterSQLite3Database {
+    if (this.db) {
+      return this.db
+    }
+
+    const databasePath = this.getDatabasePath()
+
+    const sqlite = new DatabaseConstructor(databasePath, { timeout: 5000 })
+    sqlite.pragma('journal_mode = WAL')
+    sqlite.pragma('foreign_keys = ON')
+
+    const database = drizzle(sqlite)
+    runMigrations(database)
+
+    this.db = database
+    logger.info(`history-db initialized at ${databasePath}`)
+    return this.db
+  }
+
+  private getDatabasePath(): string {
+    return getDatabaseFilePath()
+  }
+
+  private getLegacyStorePath(): string {
+    return join(app.getPath('userData'), 'download-history.json')
+  }
+
+  private ensureStructuredSchema(): void {
+    if (this.schemaChecked) {
+      return
+    }
+    this.schemaChecked = true
+
     try {
-      const historyArray = Array.from(this.history.values())
-      this.store.set('items', historyArray)
+      const database = this.getDatabase()
+      const columns = database.all<{ name: string }>(sql`PRAGMA table_info(download_history)`)
+      const hasPayloadColumn = columns.some((column) => column.name === 'payload')
+      const hasUrlColumn = columns.some((column) => column.name === 'url')
+      if (hasPayloadColumn || !hasUrlColumn) {
+        this.migrateLegacyPayloadTable()
+        return
+      }
+
+      const deprecatedColumns = ['subscription_title', 'format', 'quality', 'codec']
+      const needsRebuild = columns.some((column) => deprecatedColumns.includes(column.name))
+      if (needsRebuild) {
+        this.rebuildDownloadHistoryTable()
+      }
     } catch (error) {
-      console.error('Failed to save download history:', error)
+      logger.error('history-db failed to inspect schema', error)
+    }
+  }
+
+  private migrateLegacyPayloadTable(): void {
+    const database = this.getDatabase()
+    logger.info('history-db migrating legacy payload schema to structured columns')
+
+    try {
+      let migratedCount = 0
+      database.transaction(
+        (tx) => {
+          tx.run(renameDownloadHistoryTableSql)
+          tx.run(createDownloadHistoryTableSql)
+
+          const legacyRows = tx.select().from(legacyDownloadHistoryTable).all()
+          migratedCount = legacyRows.length
+          for (const legacyRow of legacyRows) {
+            const normalized = this.normalizeItem(this.mapLegacyRowToItem(legacyRow))
+            tx.insert(downloadHistoryTable).values(this.mapItemToInsert(normalized)).run()
+          }
+
+          tx.run(dropLegacyDownloadHistoryTableSql)
+        },
+        { behavior: 'immediate' }
+      )
+      logger.info(`history-db migrated ${migratedCount} rows to new schema`)
+    } catch (error) {
+      logger.error('history-db failed to migrate legacy payload rows', error)
+      throw error
+    }
+  }
+
+  private rebuildDownloadHistoryTable(): void {
+    const database = this.getDatabase()
+    logger.info('history-db rebuilding download_history table to latest schema')
+
+    try {
+      database.transaction(
+        (tx) => {
+          tx.run(renameDownloadHistoryTableSql)
+          tx.run(createDownloadHistoryTableSql)
+          tx.run(copyDownloadHistoryFromLegacySql)
+          tx.run(dropLegacyDownloadHistoryTableSql)
+        },
+        { behavior: 'immediate' }
+      )
+      logger.info('history-db rebuilt download_history table')
+    } catch (error) {
+      logger.error('history-db failed to rebuild download_history schema', error)
+      throw error
+    }
+  }
+
+  private mapLegacyRowToItem(row: LegacyDownloadHistoryRow): DownloadHistoryItem {
+    try {
+      const parsed = JSON.parse(row.payload) as DownloadHistoryItem
+      return {
+        ...parsed,
+        status: (parsed.status ?? row.status) as DownloadHistoryItem['status'],
+        downloadedAt: parsed.downloadedAt ?? row.downloadedAt,
+        completedAt: parsed.completedAt ?? row.completedAt ?? undefined
+      }
+    } catch (error) {
+      logger.warn('history-db falling back while migrating payload row', { id: row.id, error })
+      return {
+        id: row.id,
+        url: row.id,
+        title: `Download ${row.id}`,
+        type: 'video',
+        status: row.status as DownloadHistoryItem['status'],
+        downloadedAt: row.downloadedAt,
+        completedAt: row.completedAt ?? undefined
+      }
+    }
+  }
+
+  private ensureLegacyMigration(): void {
+    if (this.migrationChecked) {
+      return
+    }
+    this.migrationChecked = true
+
+    const legacyPath = this.getLegacyStorePath()
+    if (!existsSync(legacyPath)) {
+      return
+    }
+
+    try {
+      const raw = readFileSync(legacyPath, 'utf-8')
+      const parsed = JSON.parse(raw) as { items?: DownloadHistoryItem[] }
+      const items = parsed.items ?? []
+      if (items.length === 0) {
+        return
+      }
+
+      const database = this.getDatabase()
+      for (const legacyItem of items) {
+        const normalized = this.normalizeItem(legacyItem)
+        const insertPayload = this.mapItemToInsert(normalized)
+        database
+          .insert(downloadHistoryTable)
+          .values(insertPayload)
+          .onConflictDoUpdate({
+            target: downloadHistoryTable.id,
+            set: this.mapItemToUpdate(insertPayload)
+          })
+          .run()
+      }
+
+      try {
+        renameSync(legacyPath, `${legacyPath}.bak`)
+      } catch (renameError) {
+        logger.warn(
+          'history-db migrated legacy store but could not rename original file',
+          renameError
+        )
+      }
+
+      logger.info(`history-db migrated ${items.length} entries from legacy electron-store data`)
+    } catch (error) {
+      logger.error('history-db failed to migrate legacy store', error)
+    }
+  }
+
+  private loadHistoryFromDatabase(): void {
+    try {
+      const database = this.getDatabase()
+      const rows = database.select().from(downloadHistoryTable).all()
+      this.history = new Map(rows.map((row) => [row.id, this.mapRowToItem(row)]))
+    } catch (error) {
+      logger.error('history-db failed to load rows', error)
+      this.history = new Map()
+    }
+  }
+
+  private normalizeItem(item: DownloadHistoryItem): DownloadHistoryItem {
+    const fallbackTimestamp = Date.now()
+    const downloadedAt = item.downloadedAt ?? item.completedAt ?? fallbackTimestamp
+    const status = item.status ?? 'pending'
+
+    return {
+      ...item,
+      status,
+      downloadedAt
+    }
+  }
+
+  private mapItemToInsert(item: DownloadHistoryItem): DownloadHistoryInsert {
+    return {
+      id: item.id,
+      url: item.url,
+      title: item.title,
+      thumbnail: item.thumbnail ?? null,
+      type: item.type,
+      status: item.status,
+      downloadPath: item.downloadPath ?? null,
+      savedFileName: item.savedFileName ?? null,
+      fileSize: item.fileSize ?? null,
+      duration: item.duration ?? null,
+      downloadedAt: item.downloadedAt,
+      completedAt: item.completedAt ?? null,
+      sortKey: item.completedAt ?? item.downloadedAt,
+      error: item.error ?? null,
+      description: item.description ?? null,
+      channel: item.channel ?? null,
+      uploader: item.uploader ?? null,
+      viewCount: item.viewCount ?? null,
+      tags: serializeTags(item.tags) ?? null,
+      origin: item.origin ?? null,
+      subscriptionId: item.subscriptionId ?? null,
+      selectedFormat: item.selectedFormat ? JSON.stringify(item.selectedFormat) : null,
+      playlistId: item.playlistId ?? null,
+      playlistTitle: item.playlistTitle ?? null,
+      playlistIndex: item.playlistIndex ?? null,
+      playlistSize: item.playlistSize ?? null
+    }
+  }
+
+  private mapItemToUpdate(payload: DownloadHistoryInsert): Omit<DownloadHistoryInsert, 'id'> {
+    const { id: _id, ...rest } = payload
+    return rest
+  }
+
+  private mapRowToItem(row: DownloadHistoryRow): DownloadHistoryItem {
+    let selectedFormat: DownloadHistoryItem['selectedFormat']
+    if (row.selectedFormat) {
+      try {
+        selectedFormat = JSON.parse(row.selectedFormat) as DownloadHistoryItem['selectedFormat']
+      } catch (error) {
+        logger.warn('history-db failed to parse stored selectedFormat', { id: row.id, error })
+      }
+    }
+
+    const tags = parseTags(row.tags ?? null)
+
+    return {
+      id: row.id,
+      url: row.url,
+      title: row.title,
+      thumbnail: row.thumbnail ?? undefined,
+      type: row.type as DownloadHistoryItem['type'],
+      status: row.status as DownloadHistoryItem['status'],
+      downloadPath: row.downloadPath ?? undefined,
+      savedFileName: row.savedFileName ?? undefined,
+      fileSize: row.fileSize ?? undefined,
+      duration: row.duration ?? undefined,
+      downloadedAt: row.downloadedAt,
+      completedAt: row.completedAt ?? undefined,
+      error: row.error ?? undefined,
+      description: row.description ?? undefined,
+      channel: row.channel ?? undefined,
+      uploader: row.uploader ?? undefined,
+      viewCount: row.viewCount ?? undefined,
+      tags,
+      origin: row.origin ? (row.origin as DownloadHistoryItem['origin']) : undefined,
+      subscriptionId: row.subscriptionId ?? undefined,
+      selectedFormat,
+      playlistId: row.playlistId ?? undefined,
+      playlistTitle: row.playlistTitle ?? undefined,
+      playlistIndex: row.playlistIndex ?? undefined,
+      playlistSize: row.playlistSize ?? undefined
     }
   }
 
   addHistoryItem(item: DownloadHistoryItem): void {
-    this.history.set(item.id, item)
-    this.saveHistory()
+    const normalized = this.normalizeItem(item)
+    const insertPayload = this.mapItemToInsert(normalized)
+    try {
+      const database = this.getDatabase()
+      database
+        .insert(downloadHistoryTable)
+        .values(insertPayload)
+        .onConflictDoUpdate({
+          target: downloadHistoryTable.id,
+          set: this.mapItemToUpdate(insertPayload)
+        })
+        .run()
+      this.history.set(normalized.id, normalized)
+    } catch (error) {
+      logger.error('history-db failed to upsert item', { id: normalized.id, error })
+    }
   }
 
   getHistory(): DownloadHistoryItem[] {
     return Array.from(this.history.values()).sort((a, b) => {
-      const aTime = a.completedAt || a.downloadedAt
-      const bTime = b.completedAt || b.downloadedAt
+      const aTime = a.completedAt ?? a.downloadedAt
+      const bTime = b.completedAt ?? b.downloadedAt
       return bTime - aTime
     })
   }
@@ -56,30 +480,107 @@ class HistoryManager {
   }
 
   removeHistoryItem(id: string): boolean {
-    const deleted = this.history.delete(id)
-    if (deleted) {
-      this.saveHistory()
+    try {
+      const database = this.getDatabase()
+      const result = database
+        .delete(downloadHistoryTable)
+        .where(eq(downloadHistoryTable.id, id))
+        .run()
+      const removedFromMap = this.history.delete(id)
+      return result.changes > 0 || removedFromMap
+    } catch (error) {
+      logger.error('history-db failed to delete item', { id, error })
+      return false
+    }
+  }
+
+  removeHistoryItems(ids: string[]): number {
+    const uniqueIds = Array.from(new Set(ids)).filter((id) => id.trim().length > 0)
+    if (uniqueIds.length === 0) {
+      return 0
+    }
+    let removedCount = 0
+    try {
+      const database = this.getDatabase()
+      const result = database
+        .delete(downloadHistoryTable)
+        .where(inArray(downloadHistoryTable.id, uniqueIds))
+        .run()
+      for (const id of uniqueIds) {
+        if (this.history.delete(id)) {
+          removedCount++
+        }
+      }
+      if ((result.changes ?? 0) > removedCount) {
+        removedCount = result.changes ?? removedCount
+      }
+      return removedCount
+    } catch (error) {
+      logger.error('history-db failed to delete items', { count: uniqueIds.length, error })
+      return removedCount
+    }
+  }
+
+  removeHistoryByPlaylistId(playlistId: string): number {
+    const normalized = playlistId.trim()
+    if (!normalized) {
+      return 0
+    }
+    let removedCount = 0
+    try {
+      const database = this.getDatabase()
+      const result = database
+        .delete(downloadHistoryTable)
+        .where(eq(downloadHistoryTable.playlistId, normalized))
+        .run()
+      for (const [id, item] of this.history.entries()) {
+        if (item.playlistId === normalized) {
+          this.history.delete(id)
+          removedCount++
+        }
+      }
+      if ((result.changes ?? 0) > removedCount) {
+        removedCount = result.changes ?? removedCount
+      }
+      return removedCount
+    } catch (error) {
+      logger.error('history-db failed to delete playlist items', { playlistId: normalized, error })
+      return removedCount
     }
-    return deleted
   }
 
   clearHistory(): void {
-    this.history.clear()
-    this.saveHistory()
+    try {
+      const database = this.getDatabase()
+      database.delete(downloadHistoryTable).run()
+      this.history.clear()
+    } catch (error) {
+      logger.error('history-db failed to clear items', error)
+    }
   }
 
   clearHistoryByStatus(status: DownloadHistoryItem['status']): number {
     let removedCount = 0
-    for (const [id, item] of this.history.entries()) {
-      if (item.status === status) {
-        this.history.delete(id)
-        removedCount++
+    try {
+      const database = this.getDatabase()
+      const result = database
+        .delete(downloadHistoryTable)
+        .where(eq(downloadHistoryTable.status, status))
+        .run()
+      for (const [id, item] of this.history.entries()) {
+        if (item.status === status) {
+          this.history.delete(id)
+          removedCount++
+        }
       }
+      if ((result.changes ?? 0) > removedCount) {
+        removedCount = result.changes ?? removedCount
+      }
+      return removedCount
+    } catch (error) {
+      logger.error('history-db failed to clear items by status', { status, error })
+      return removedCount
     }
-    if (removedCount > 0) {
-      this.saveHistory()
-    }
-    return removedCount
   }
 
   getHistoryCount(): {
@@ -111,6 +612,15 @@ class HistoryManager {
 
     return counts
   }
+
+  hasHistoryForUrl(url: string): boolean {
+    for (const item of this.history.values()) {
+      if (item.url === url) {
+        return true
+      }
+    }
+    return false
+  }
 }
 
 export const historyManager = new HistoryManager()

src/main/lib/subscription-manager.ts

@@ -0,0 +1,643 @@
+import { randomUUID } from 'node:crypto'
+import { EventEmitter } from 'node:events'
+import fs from 'node:fs'
+import type { Database as BetterSqlite3Instance } from 'better-sqlite3'
+import DatabaseConstructor from 'better-sqlite3'
+import { and, desc, eq, inArray } from 'drizzle-orm'
+import type { BetterSQLite3Database } from 'drizzle-orm/better-sqlite3'
+import { drizzle } from 'drizzle-orm/better-sqlite3'
+import log from 'electron-log/main'
+import type {
+  SubscriptionCreatePayload,
+  SubscriptionFeedItem,
+  SubscriptionRule,
+  SubscriptionStatus,
+  SubscriptionUpdatePayload
+} from '../../shared/types'
+import { sanitizeFilenameTemplate } from '../download-engine/args-builder'
+import { runMigrations } from './database/migrate'
+import {
+  type SubscriptionInsert,
+  type SubscriptionItemRow,
+  type SubscriptionRow,
+  subscriptionItemsTable,
+  subscriptionsTable
+} from './database/schema'
+import { getDatabaseFilePath } from './database-path'
+
+const sanitizeList = (values?: string[]): string[] => {
+  if (!values || values.length === 0) {
+    return []
+  }
+  return values
+    .map((value) => value.trim())
+    .filter((value, index, array) => value.length > 0 && array.indexOf(value) === index)
+}
+
+const ensureDirectoryExists = (dir?: string): void => {
+  if (!dir) {
+    return
+  }
+  try {
+    fs.mkdirSync(dir, { recursive: true })
+  } catch (error) {
+    log.error('Failed to ensure subscription directory:', error)
+  }
+}
+
+const booleanToNumber = (value: boolean): number => (value ? 1 : 0)
+const numberToBoolean = (value: number | null | undefined): boolean => value === 1
+
+const parseStringArray = (value: string | null | undefined): string[] => {
+  if (!value) {
+    return []
+  }
+  try {
+    const parsed = JSON.parse(value) as unknown
+    return Array.isArray(parsed) ? sanitizeList(parsed as string[]) : []
+  } catch {
+    return []
+  }
+}
+
+const stringifyArray = (values: string[]): string => JSON.stringify(sanitizeList(values))
+
+export class SubscriptionManager extends EventEmitter {
+  private sqlite: BetterSqlite3Instance | null = null
+  private db: BetterSQLite3Database | null = null
+
+  constructor() {
+    super()
+    try {
+      this.getDatabase()
+      this.migrateLegacyStore()
+    } catch (error) {
+      log.error('subscriptions: failed to initialize database', error)
+    }
+  }
+
+  getAll(): SubscriptionRule[] {
+    const database = this.getDatabase()
+    const rows = database
+      .select()
+      .from(subscriptionsTable)
+      .orderBy(desc(subscriptionsTable.updatedAt))
+      .all()
+    return this.attachFeedItems(rows.map((row) => this.mapRowToRecord(row)))
+  }
+
+  getById(id: string): SubscriptionRule | undefined {
+    const database = this.getDatabase()
+    const row = database
+      .select()
+      .from(subscriptionsTable)
+      .where(eq(subscriptionsTable.id, id))
+      .get()
+    if (!row) {
+      return undefined
+    }
+    return this.attachFeedItems([this.mapRowToRecord(row)])[0]
+  }
+
+  add(payload: SubscriptionCreatePayload): SubscriptionRule {
+    const timestamp = Date.now()
+    const keywords = sanitizeList(payload.keywords)
+    const tags = sanitizeList(payload.tags)
+    const record: SubscriptionRule = {
+      id: randomUUID(),
+      title: payload.sourceUrl,
+      sourceUrl: payload.sourceUrl,
+      feedUrl: payload.feedUrl,
+      platform: payload.platform,
+      keywords,
+      tags,
+      onlyDownloadLatest: payload.onlyDownloadLatest ?? true,
+      enabled: payload.enabled ?? true,
+      coverUrl: undefined,
+      latestVideoTitle: undefined,
+      latestVideoPublishedAt: undefined,
+      lastCheckedAt: undefined,
+      lastSuccessAt: undefined,
+      status: 'idle',
+      lastError: undefined,
+      createdAt: timestamp,
+      updatedAt: timestamp,
+      downloadDirectory: payload.downloadDirectory,
+      namingTemplate: payload.namingTemplate
+        ? sanitizeFilenameTemplate(payload.namingTemplate)
+        : undefined,
+      items: []
+    }
+
+    ensureDirectoryExists(payload.downloadDirectory)
+    this.insertRecord(record)
+    this.emitUpdates()
+    return record
+  }
+
+  update(
+    id: string,
+    updates: SubscriptionUpdatePayload & Partial<SubscriptionRule>
+  ): SubscriptionRule | undefined {
+    const existing = this.getById(id)
+    if (!existing) {
+      return undefined
+    }
+
+    const keywords = updates.keywords ? sanitizeList(updates.keywords) : undefined
+    const tags = updates.tags ? sanitizeList(updates.tags) : undefined
+    const next: SubscriptionRule = {
+      ...existing,
+      ...updates,
+      keywords: keywords ?? existing.keywords,
+      tags: tags ?? existing.tags,
+      updatedAt: Date.now()
+    }
+
+    // If sourceUrl is updated but title is not explicitly set, update title to match sourceUrl
+    if (updates.sourceUrl && !updates.title && updates.sourceUrl !== existing.sourceUrl) {
+      next.title = updates.sourceUrl
+    }
+
+    if (updates.namingTemplate) {
+      next.namingTemplate = sanitizeFilenameTemplate(updates.namingTemplate)
+    }
+
+    ensureDirectoryExists(next.downloadDirectory)
+    this.updateRecord(next)
+    this.emitUpdates()
+    return next
+  }
+
+  remove(id: string): boolean {
+    const database = this.getDatabase()
+    const result = database.delete(subscriptionsTable).where(eq(subscriptionsTable.id, id)).run()
+    if ((result.changes ?? 0) > 0) {
+      database
+        .delete(subscriptionItemsTable)
+        .where(eq(subscriptionItemsTable.subscriptionId, id))
+        .run()
+      this.emitUpdates()
+      return true
+    }
+    return false
+  }
+
+  replaceFeedItems(
+    subscriptionId: string,
+    items: SubscriptionFeedItem[],
+    silent: boolean = false
+  ): void {
+    const database = this.getDatabase()
+    const orderedItems = [...items].sort((a, b) => b.publishedAt - a.publishedAt)
+    const now = Date.now()
+    database.transaction((tx) => {
+      tx.delete(subscriptionItemsTable)
+        .where(eq(subscriptionItemsTable.subscriptionId, subscriptionId))
+        .run()
+      for (const item of orderedItems) {
+        tx.insert(subscriptionItemsTable)
+          .values({
+            subscriptionId,
+            itemId: item.id,
+            title: item.title,
+            url: item.url,
+            publishedAt: item.publishedAt,
+            thumbnail: item.thumbnail ?? null,
+            added: booleanToNumber(item.addedToQueue),
+            downloadId: item.downloadId ?? null,
+            createdAt: item.publishedAt,
+            updatedAt: now
+          })
+          .run()
+      }
+    })
+    if (!silent) {
+      this.emitUpdates()
+    }
+  }
+
+  updateFeedItemQueueState(
+    subscriptionId: string,
+    itemId: string,
+    updates: { added?: boolean; downloadId?: string | null }
+  ): void {
+    if (updates.added === undefined && !Object.hasOwn(updates, 'downloadId')) {
+      return
+    }
+
+    const setPayload: Partial<typeof subscriptionItemsTable.$inferInsert> = {
+      updatedAt: Date.now()
+    }
+
+    if (updates.added !== undefined) {
+      setPayload.added = booleanToNumber(updates.added)
+    }
+    if (Object.hasOwn(updates, 'downloadId')) {
+      setPayload.downloadId = updates.downloadId ?? null
+    }
+
+    const database = this.getDatabase()
+    const result = database
+      .update(subscriptionItemsTable)
+      .set(setPayload)
+      .where(
+        and(
+          eq(subscriptionItemsTable.subscriptionId, subscriptionId),
+          eq(subscriptionItemsTable.itemId, itemId)
+        )
+      )
+      .run()
+
+    if ((result.changes ?? 0) > 0) {
+      this.emitUpdates()
+    }
+  }
+
+  private attachFeedItems(records: SubscriptionRule[]): SubscriptionRule[] {
+    if (records.length === 0) {
+      return records
+    }
+    const ids = records.map((record) => record.id)
+    const database = this.getDatabase()
+    const rows = database
+      .select()
+      .from(subscriptionItemsTable)
+      .where(inArray(subscriptionItemsTable.subscriptionId, ids))
+      .orderBy(desc(subscriptionItemsTable.publishedAt))
+      .all()
+
+    const grouped = new Map<string, SubscriptionFeedItem[]>()
+    for (const row of rows) {
+      const item = this.mapItemRowToFeedItem(row)
+      const list = grouped.get(row.subscriptionId)
+      if (list) {
+        list.push(item)
+      } else {
+        grouped.set(row.subscriptionId, [item])
+      }
+    }
+
+    return records.map((record) => ({
+      ...record,
+      items: grouped.get(record.id) ?? []
+    }))
+  }
+
+  private getDatabase(): BetterSQLite3Database {
+    if (this.db) {
+      return this.db
+    }
+
+    const databasePath = this.getDatabasePath()
+    this.sqlite = new DatabaseConstructor(databasePath, { timeout: 5000 })
+    this.sqlite.pragma('journal_mode = WAL')
+    this.sqlite.pragma('foreign_keys = ON')
+    this.db = drizzle(this.sqlite)
+    runMigrations(this.db)
+    this.ensureSubscriptionsSchema()
+    this.ensureItemsSchema()
+    log.info('subscriptions: database initialized at', databasePath)
+    return this.db
+  }
+
+  private ensureItemsSchema(): void {
+    if (!this.sqlite) {
+      return
+    }
+    try {
+      const columns = this.sqlite.prepare(`PRAGMA table_info(subscription_items)`).all() as Array<{
+        name: string
+      }>
+      const hasAdded = columns.some((column) => column.name === 'added')
+      if (!hasAdded) {
+        this.sqlite
+          .prepare(`ALTER TABLE subscription_items ADD COLUMN added INTEGER NOT NULL DEFAULT 0`)
+          .run()
+      }
+      const hasDownloaded = columns.some((column) => column.name === 'downloaded')
+      const hasLegacyStatus = columns.some((column) => column.name === 'status')
+      const needsMigration = hasDownloaded || hasLegacyStatus
+      if (needsMigration) {
+        if (hasDownloaded) {
+          this.sqlite.prepare(`UPDATE subscription_items SET added = 1 WHERE downloaded = 1`).run()
+        }
+        const sqlite = this.sqlite
+        const migrate = sqlite.transaction(() => {
+          sqlite.prepare(`DROP TABLE IF EXISTS subscription_items_new`).run()
+          sqlite
+            .prepare(
+              `CREATE TABLE subscription_items_new (
+                subscription_id TEXT NOT NULL,
+                item_id TEXT NOT NULL,
+                title TEXT NOT NULL,
+                url TEXT NOT NULL,
+                published_at INTEGER NOT NULL,
+                thumbnail TEXT,
+                added INTEGER NOT NULL,
+                download_id TEXT,
+                created_at INTEGER NOT NULL,
+                updated_at INTEGER NOT NULL,
+                PRIMARY KEY (subscription_id, item_id)
+              )`
+            )
+            .run()
+          sqlite
+            .prepare(
+              `INSERT INTO subscription_items_new (
+                subscription_id,
+                item_id,
+                title,
+                url,
+                published_at,
+                thumbnail,
+                added,
+                download_id,
+                created_at,
+                updated_at
+              )
+              SELECT
+                subscription_id,
+                item_id,
+                title,
+                url,
+                published_at,
+                thumbnail,
+                added,
+                download_id,
+                created_at,
+                updated_at
+              FROM subscription_items`
+            )
+            .run()
+          sqlite.prepare(`DROP TABLE subscription_items`).run()
+          sqlite.prepare(`ALTER TABLE subscription_items_new RENAME TO subscription_items`).run()
+          sqlite
+            .prepare(
+              'CREATE INDEX IF NOT EXISTS subscription_items_subscription_idx ON subscription_items (subscription_id)'
+            )
+            .run()
+        })
+        migrate()
+        log.info('subscriptions: removed legacy columns from subscription_items')
+      }
+    } catch (error) {
+      log.warn('subscriptions: failed to ensure subscription_items schema', error)
+    }
+  }
+
+  private ensureSubscriptionsSchema(): void {
+    if (!this.sqlite) {
+      return
+    }
+    try {
+      const columns = this.sqlite.prepare(`PRAGMA table_info(subscriptions)`).all() as Array<{
+        name: string
+      }>
+      const hasLegacyColumns = columns.some((column) =>
+        ['seen_item_ids', 'last_item_id'].includes(column.name)
+      )
+      if (!hasLegacyColumns) {
+        return
+      }
+      const sqlite = this.sqlite
+      const migrate = sqlite.transaction(() => {
+        sqlite.prepare(`DROP TABLE IF EXISTS subscriptions_new`).run()
+        sqlite
+          .prepare(
+            `CREATE TABLE subscriptions_new (
+              id TEXT PRIMARY KEY,
+              title TEXT NOT NULL,
+              source_url TEXT NOT NULL,
+              feed_url TEXT NOT NULL,
+              platform TEXT NOT NULL,
+              keywords TEXT NOT NULL,
+              tags TEXT NOT NULL,
+              only_latest INTEGER NOT NULL,
+              enabled INTEGER NOT NULL,
+              cover_url TEXT,
+              latest_video_title TEXT,
+              latest_video_published_at INTEGER,
+              last_checked_at INTEGER,
+              last_success_at INTEGER,
+              status TEXT NOT NULL,
+              last_error TEXT,
+              created_at INTEGER NOT NULL,
+              updated_at INTEGER NOT NULL,
+              download_directory TEXT,
+              naming_template TEXT
+            )`
+          )
+          .run()
+        sqlite
+          .prepare(
+            `INSERT INTO subscriptions_new (
+              id,
+              title,
+              source_url,
+              feed_url,
+              platform,
+              keywords,
+              tags,
+              only_latest,
+              enabled,
+              cover_url,
+              latest_video_title,
+              latest_video_published_at,
+              last_checked_at,
+              last_success_at,
+              status,
+              last_error,
+              created_at,
+              updated_at,
+              download_directory,
+              naming_template
+            )
+            SELECT
+              id,
+              title,
+              source_url,
+              feed_url,
+              platform,
+              keywords,
+              tags,
+              only_latest,
+              enabled,
+              cover_url,
+              latest_video_title,
+              latest_video_published_at,
+              last_checked_at,
+              last_success_at,
+              status,
+              last_error,
+              created_at,
+              updated_at,
+              download_directory,
+              naming_template
+            FROM subscriptions`
+          )
+          .run()
+        sqlite.prepare(`DROP TABLE subscriptions`).run()
+        sqlite.prepare(`ALTER TABLE subscriptions_new RENAME TO subscriptions`).run()
+      })
+      migrate()
+      log.info('subscriptions: removed legacy seen_item_ids and last_item_id columns')
+    } catch (error) {
+      log.warn('subscriptions: failed to ensure subscriptions schema', error)
+    }
+  }
+
+  private getDatabasePath(): string {
+    return getDatabaseFilePath()
+  }
+
+  private migrateLegacyStore(): void {
+    try {
+      const ElectronStore = require('electron-store')
+      // Access the default export
+      const LegacyStore = ElectronStore.default || ElectronStore
+      const store = new LegacyStore({
+        name: 'subscriptions',
+        defaults: {
+          subscriptions: []
+        }
+      })
+      const legacyData = store.get('subscriptions') as SubscriptionRule[] | undefined
+      if (!legacyData || legacyData.length === 0) {
+        return
+      }
+
+      if (this.getAll().length > 0) {
+        return
+      }
+
+      for (const legacyItem of legacyData) {
+        try {
+          const normalized: SubscriptionRule = {
+            ...legacyItem,
+            keywords: sanitizeList(legacyItem.keywords),
+            tags: sanitizeList(legacyItem.tags),
+            items: []
+          }
+          this.insertRecord(normalized)
+          const legacyFeedItemsRaw = Array.isArray(
+            (legacyItem as { items?: SubscriptionFeedItem[] }).items
+          )
+            ? ((legacyItem as { items?: SubscriptionFeedItem[] }).items ?? [])
+            : []
+          if (legacyFeedItemsRaw.length > 0) {
+            const converted = legacyFeedItemsRaw.map((item) => ({
+              id: item.id,
+              url: item.url,
+              title: item.title,
+              publishedAt: item.publishedAt,
+              thumbnail: item.thumbnail,
+              addedToQueue: Boolean((item as { downloaded?: boolean }).downloaded),
+              downloadId: item.downloadId
+            }))
+            this.replaceFeedItems(normalized.id, converted, true)
+          }
+        } catch (error) {
+          log.error('subscriptions: failed to migrate legacy record', error)
+        }
+      }
+
+      store.clear()
+      this.emitUpdates()
+      log.info(`subscriptions: migrated ${legacyData.length} legacy entries`)
+    } catch (error) {
+      log.warn('subscriptions: legacy migration skipped', error)
+    }
+  }
+
+  private insertRecord(record: SubscriptionRule): void {
+    const database = this.getDatabase()
+    const payload = this.mapRecordToInsert(record)
+    database
+      .insert(subscriptionsTable)
+      .values(payload)
+      .onConflictDoUpdate({ target: subscriptionsTable.id, set: payload })
+      .run()
+  }
+
+  private updateRecord(record: SubscriptionRule): void {
+    const database = this.getDatabase()
+    const payload = this.mapRecordToInsert(record)
+    database
+      .insert(subscriptionsTable)
+      .values(payload)
+      .onConflictDoUpdate({ target: subscriptionsTable.id, set: payload })
+      .run()
+  }
+
+  private mapRecordToInsert(record: SubscriptionRule): SubscriptionInsert {
+    return {
+      id: record.id,
+      title: record.title,
+      sourceUrl: record.sourceUrl,
+      feedUrl: record.feedUrl,
+      platform: record.platform,
+      keywords: stringifyArray(record.keywords),
+      tags: stringifyArray(record.tags),
+      onlyDownloadLatest: booleanToNumber(record.onlyDownloadLatest),
+      enabled: booleanToNumber(record.enabled),
+      coverUrl: record.coverUrl,
+      latestVideoTitle: record.latestVideoTitle,
+      latestVideoPublishedAt: record.latestVideoPublishedAt ?? null,
+      lastCheckedAt: record.lastCheckedAt ?? null,
+      lastSuccessAt: record.lastSuccessAt ?? null,
+      status: record.status,
+      lastError: record.lastError,
+      createdAt: record.createdAt,
+      updatedAt: record.updatedAt,
+      downloadDirectory: record.downloadDirectory,
+      namingTemplate: record.namingTemplate
+        ? sanitizeFilenameTemplate(record.namingTemplate)
+        : undefined
+    }
+  }
+
+  private mapRowToRecord(row: SubscriptionRow): SubscriptionRule {
+    return {
+      id: row.id,
+      title: row.title,
+      sourceUrl: row.sourceUrl,
+      feedUrl: row.feedUrl,
+      platform: row.platform as SubscriptionRule['platform'],
+      keywords: parseStringArray(row.keywords),
+      tags: parseStringArray(row.tags),
+      onlyDownloadLatest: numberToBoolean(row.onlyDownloadLatest),
+      enabled: numberToBoolean(row.enabled),
+      coverUrl: row.coverUrl ?? undefined,
+      latestVideoTitle: row.latestVideoTitle ?? undefined,
+      latestVideoPublishedAt: row.latestVideoPublishedAt ?? undefined,
+      lastCheckedAt: row.lastCheckedAt ?? undefined,
+      lastSuccessAt: row.lastSuccessAt ?? undefined,
+      status: row.status as SubscriptionStatus,
+      lastError: row.lastError ?? undefined,
+      createdAt: row.createdAt,
+      updatedAt: row.updatedAt,
+      downloadDirectory: row.downloadDirectory ?? undefined,
+      namingTemplate: row.namingTemplate ? sanitizeFilenameTemplate(row.namingTemplate) : undefined,
+      items: []
+    }
+  }
+
+  private mapItemRowToFeedItem(row: SubscriptionItemRow): SubscriptionFeedItem {
+    return {
+      id: row.itemId,
+      url: row.url,
+      title: row.title,
+      publishedAt: row.publishedAt,
+      thumbnail: row.thumbnail ?? undefined,
+      addedToQueue: numberToBoolean(row.added),
+      downloadId: row.downloadId ?? undefined
+    }
+  }
+
+  private emitUpdates(): void {
+    this.emit('subscriptions:updated', this.getAll())
+  }
+}
+
+export const subscriptionManager = new SubscriptionManager()

src/main/lib/subscription-scheduler.ts

@@ -0,0 +1,532 @@
+import { EventEmitter } from 'node:events'
+import fs from 'node:fs'
+import log from 'electron-log/main'
+import Parser from 'rss-parser'
+import type { SubscriptionFeedItem, SubscriptionRule } from '../../shared/types'
+import { DEFAULT_SUBSCRIPTION_FILENAME_TEMPLATE } from '../../shared/types'
+import { settingsManager } from '../settings'
+import { downloadEngine } from './download-engine'
+import { historyManager } from './history-manager'
+import { subscriptionManager } from './subscription-manager'
+
+const logger = log.scope('subscriptions')
+
+type ParserItem = {
+  title?: string
+  link?: string
+  guid?: string
+  id?: string
+  isoDate?: string
+  pubDate?: string
+  youtubeId?: string
+  content?: string
+  contentSnippet?: string
+  contentEncoded?: string
+  summary?: string
+  description?: string
+  mediaThumbnail?: Array<{ url?: string }> | { url?: string }
+  mediaContent?: Array<{ url?: string }> | { url?: string }
+  enclosure?: Array<{ url?: string; type?: string }> | { url?: string; type?: string }
+  [key: string]: unknown
+}
+
+type TrackedDownload = {
+  subscriptionId: string
+  itemId: string
+  url: string
+  retries: number
+  downloadId: string
+}
+
+type FeedItem = {
+  id: string
+  url: string
+  title: string
+  publishedAt: number
+  thumbnail?: string
+}
+
+const parser = new Parser<Record<string, never>, ParserItem>({
+  customFields: {
+    item: [
+      ['yt:videoId', 'youtubeId'],
+      ['media:thumbnail', 'mediaThumbnail'],
+      ['media:content', 'mediaContent'],
+      ['enclosure', 'enclosure'],
+      ['content:encoded', 'contentEncoded'],
+      ['description', 'description']
+    ]
+  }
+})
+
+const sanitizeDownloadId = (subscriptionId: string, itemId: string): string => {
+  const base = Buffer.from(`${subscriptionId}:${itemId}`).toString('base64url')
+  return `sub_${base}`
+}
+
+const ensureDirectoryExists = (dir?: string): void => {
+  if (!dir) {
+    return
+  }
+  try {
+    fs.mkdirSync(dir, { recursive: true })
+  } catch (error) {
+    logger.warn('Failed to ensure subscription download directory:', error)
+  }
+}
+
+export class SubscriptionScheduler extends EventEmitter {
+  private timer?: NodeJS.Timeout
+  private checking = false
+  private pendingRun = false
+  private downloads: Map<string, TrackedDownload> = new Map()
+
+  constructor() {
+    super()
+    downloadEngine.on('download-completed', (id: string) => {
+      const tracked = this.downloads.get(id)
+      if (!tracked) {
+        return
+      }
+      this.downloads.delete(id)
+      subscriptionManager.update(tracked.subscriptionId, {
+        status: 'up-to-date',
+        lastSuccessAt: Date.now()
+      })
+      subscriptionManager.updateFeedItemQueueState(tracked.subscriptionId, tracked.itemId, {
+        downloadId: id
+      })
+    })
+
+    downloadEngine.on('download-error', (id: string, error: Error) => {
+      const tracked = this.downloads.get(id)
+      if (!tracked) {
+        return
+      }
+      const currentRetries = tracked.retries ?? 0
+      if (currentRetries < 1) {
+        logger.warn('Retrying failed subscription download', { id, error })
+        this.queueDownload(
+          tracked.subscriptionId,
+          tracked.itemId,
+          tracked.url,
+          currentRetries + 1
+        ).catch((queueError) => {
+          logger.error('Retry queue failed:', queueError)
+        })
+        return
+      }
+
+      this.downloads.delete(id)
+      subscriptionManager.update(tracked.subscriptionId, {
+        status: 'failed',
+        lastCheckedAt: Date.now()
+      })
+      subscriptionManager.updateFeedItemQueueState(tracked.subscriptionId, tracked.itemId, {
+        downloadId: null
+      })
+    })
+  }
+
+  start(): void {
+    this.scheduleNextRun(0)
+  }
+
+  refreshInterval(): void {
+    if (this.timer) {
+      clearTimeout(this.timer)
+    }
+    this.scheduleNextRun()
+  }
+
+  async runNow(subscriptionId?: string): Promise<void> {
+    if (subscriptionId) {
+      const target = subscriptionManager.getById(subscriptionId)
+      if (target?.enabled) {
+        await this.checkSubscription(target)
+      }
+      return
+    }
+    await this.checkAll()
+  }
+
+  async queueItem(subscriptionId: string, itemId: string): Promise<boolean> {
+    const subscription = subscriptionManager.getById(subscriptionId)
+    if (!subscription) {
+      return false
+    }
+    const item = subscription.items.find((entry) => entry.id === itemId)
+    if (!item || item.addedToQueue) {
+      return false
+    }
+    await this.queueDownload(subscriptionId, itemId, item.url)
+    return true
+  }
+
+  private scheduleNextRun(initialDelay?: number): void {
+    if (this.timer) {
+      clearTimeout(this.timer)
+    }
+    const intervalHours = 3 // Default check interval: 3 hours
+    const delayMs = initialDelay ?? intervalHours * 60 * 60 * 1000
+    this.timer = setTimeout(() => {
+      void this.checkAll().finally(() => this.scheduleNextRun())
+    }, delayMs)
+  }
+
+  private async checkAll(): Promise<void> {
+    if (this.checking) {
+      this.pendingRun = true
+      return
+    }
+    this.checking = true
+    try {
+      const subscriptions = subscriptionManager
+        .getAll()
+        .filter((subscription) => subscription.enabled)
+      for (const subscription of subscriptions) {
+        await this.checkSubscription(subscription)
+      }
+    } catch (error) {
+      logger.error('Failed to run subscription sync', error)
+    } finally {
+      this.checking = false
+      if (this.pendingRun) {
+        this.pendingRun = false
+        void this.checkAll()
+      }
+    }
+  }
+
+  private async checkSubscription(subscription: SubscriptionRule): Promise<void> {
+    const startedAt = Date.now()
+    subscriptionManager.update(subscription.id, {
+      status: 'checking',
+      lastCheckedAt: startedAt,
+      lastError: undefined
+    })
+
+    try {
+      const feed = await parser.parseURL(subscription.feedUrl)
+      const feedItems = Array.isArray(feed.items) ? feed.items : []
+      const normalizedItems = this.normalizeFeedItems(feedItems as ParserItem[])
+      const recentItems = this.filterRecentItems(subscription, normalizedItems)
+      const unseenItems = this.filterNewItems(subscription, recentItems)
+      const keywords = subscription.keywords.map((keyword) => keyword.toLowerCase())
+      const keywordFiltered =
+        keywords.length > 0
+          ? unseenItems.filter((item) => {
+              const lowered = item.title.toLowerCase()
+              return keywords.some((keyword) => lowered.includes(keyword))
+            })
+          : unseenItems
+
+      const deduped = keywordFiltered
+        .filter((item) => !historyManager.hasHistoryForUrl(item.url))
+        .sort((a, b) => b.publishedAt - a.publishedAt)
+
+      const itemsToDownload =
+        subscription.onlyDownloadLatest && deduped.length > 0 ? [deduped[0]] : deduped
+
+      subscriptionManager.replaceFeedItems(
+        subscription.id,
+        this.buildFeedItems(normalizedItems, subscription)
+      )
+
+      if (itemsToDownload.length > 0) {
+        for (const item of itemsToDownload) {
+          await this.queueDownload(subscription.id, item.id, item.url)
+        }
+      }
+
+      const latestItem = normalizedItems[0]
+      const coverUrl = this.resolveSubscriptionCover(
+        feed,
+        normalizedItems,
+        feedItems as ParserItem[]
+      )
+      subscriptionManager.update(subscription.id, {
+        status: 'up-to-date',
+        lastSuccessAt: Date.now(),
+        lastError: undefined,
+        latestVideoTitle: latestItem?.title ?? subscription.latestVideoTitle,
+        latestVideoPublishedAt: latestItem?.publishedAt ?? subscription.latestVideoPublishedAt,
+        coverUrl: coverUrl ?? subscription.coverUrl,
+        title:
+          typeof feed.title === 'string' && feed.title.trim().length > 0
+            ? feed.title.trim()
+            : subscription.title,
+        sourceUrl:
+          typeof feed.link === 'string' && feed.link.trim().length > 0
+            ? feed.link.trim()
+            : subscription.sourceUrl
+      })
+    } catch (error) {
+      const message = error instanceof Error ? error.message : 'Unknown RSS error'
+      subscriptionManager.update(subscription.id, {
+        status: 'failed',
+        lastError: message,
+        lastCheckedAt: Date.now()
+      })
+      logger.error('Subscription check failed:', { id: subscription.id, error })
+    }
+  }
+
+  private normalizeFeedItems(items: ParserItem[]): FeedItem[] {
+    const normalized: FeedItem[] = []
+    for (const item of items) {
+      const id = this.resolveItemId(item)
+      if (!id || !item.link || !item.title) {
+        continue
+      }
+      normalized.push({
+        id,
+        url: item.link,
+        title: item.title,
+        publishedAt: this.resolvePublishedAt(item),
+        thumbnail: this.resolveThumbnail(item)
+      })
+    }
+
+    return normalized.sort((a, b) => b.publishedAt - a.publishedAt)
+  }
+
+  private buildFeedItems(
+    items: FeedItem[],
+    subscription: SubscriptionRule
+  ): SubscriptionFeedItem[] {
+    const existingItems = new Map(subscription.items.map((item) => [item.id, item]))
+    return items.map((item) => {
+      const tracked = this.getTrackedDownloadByUrl(item.url)
+      const existing = existingItems.get(item.id)
+      return {
+        id: item.id,
+        url: item.url,
+        title: item.title,
+        publishedAt: item.publishedAt,
+        thumbnail: item.thumbnail,
+        addedToQueue:
+          Boolean(tracked) || existing?.addedToQueue || historyManager.hasHistoryForUrl(item.url),
+        downloadId: tracked?.downloadId ?? existing?.downloadId
+      }
+    })
+  }
+
+  private resolveItemId(item: ParserItem): string | null {
+    const idCandidate =
+      item.youtubeId || item.guid || item.id || (typeof item.link === 'string' ? item.link : null)
+    if (!idCandidate) {
+      return null
+    }
+    return idCandidate.trim()
+  }
+
+  private resolvePublishedAt(item: ParserItem): number {
+    const candidates = [item.isoDate, item.pubDate]
+    for (const candidate of candidates) {
+      if (!candidate) {
+        continue
+      }
+      const timestamp = Date.parse(candidate)
+      if (!Number.isNaN(timestamp)) {
+        return timestamp
+      }
+    }
+    return Date.now()
+  }
+
+  private resolveThumbnail(item: ParserItem): string | undefined {
+    // Try media:thumbnail first
+    const thumbnail = item.mediaThumbnail
+    if (Array.isArray(thumbnail)) {
+      const found = thumbnail.find((entry) => entry?.url)
+      if (found?.url) return found.url
+    }
+    if (thumbnail && typeof thumbnail === 'object' && 'url' in thumbnail) {
+      return thumbnail.url as string | undefined
+    }
+
+    // Try enclosure (for RSS feeds with image/jpeg type)
+    const enclosure = item.enclosure
+    if (Array.isArray(enclosure)) {
+      const imageEnclosure = enclosure.find(
+        (entry) => entry?.url && entry?.type?.startsWith('image/')
+      )
+      if (imageEnclosure?.url) return imageEnclosure.url
+    }
+    if (enclosure && typeof enclosure === 'object' && 'url' in enclosure) {
+      const enc = enclosure as { url?: string; type?: string }
+      if (enc.url && enc.type?.startsWith('image/')) {
+        return enc.url
+      }
+    }
+
+    // Try media:content as fallback
+    const mediaContent = item.mediaContent
+    if (Array.isArray(mediaContent)) {
+      const found = mediaContent.find((entry) => entry?.url)
+      if (found?.url) return found.url
+    }
+    if (mediaContent && typeof mediaContent === 'object' && 'url' in mediaContent) {
+      return mediaContent.url as string | undefined
+    }
+
+    // Try to parse an image from HTML fields
+    const htmlCandidates = [
+      item.content,
+      item.contentEncoded,
+      item.description,
+      item.summary,
+      item.contentSnippet
+    ]
+    for (const html of htmlCandidates) {
+      const imageUrl = this.extractImageFromHtml(html)
+      if (imageUrl) {
+        return imageUrl
+      }
+    }
+
+    return undefined
+  }
+
+  private resolveSubscriptionCover(
+    feed: Parser.Output<ParserItem>,
+    items: FeedItem[],
+    rawItems: ParserItem[]
+  ): string | undefined {
+    const feedImageUrl = typeof feed.image?.url === 'string' ? feed.image.url : undefined
+    if (feedImageUrl) {
+      return feedImageUrl
+    }
+
+    const itunesImageUrl = typeof feed.itunes?.image === 'string' ? feed.itunes.image : undefined
+    if (itunesImageUrl) {
+      return itunesImageUrl
+    }
+
+    const itemThumbnail = items.find((item) => item.thumbnail)?.thumbnail
+    if (itemThumbnail) {
+      return itemThumbnail
+    }
+
+    for (const item of rawItems) {
+      const thumbnail = this.resolveThumbnail(item)
+      if (thumbnail) {
+        return thumbnail
+      }
+    }
+
+    return undefined
+  }
+
+  private extractImageFromHtml(html?: string): string | undefined {
+    if (!html) {
+      return undefined
+    }
+
+    const srcMatch = html.match(
+      /<img\b[^>]*\b(?:src|data-src|data-original)\b\s*=\s*(['"]?)([^'">\s]+)\1/i
+    )
+    if (srcMatch?.[2]) {
+      return srcMatch[2]
+    }
+
+    const srcsetMatch = html.match(/<img[^>]+srcset\s*=\s*(['"])([^'"]+)\1/i)
+    if (srcsetMatch?.[2]) {
+      const firstCandidate = srcsetMatch[2].split(',')[0]?.trim().split(/\s+/)[0]
+      if (firstCandidate) {
+        return firstCandidate
+      }
+    }
+
+    return undefined
+  }
+
+  private filterRecentItems(subscription: SubscriptionRule, items: FeedItem[]): FeedItem[] {
+    const lastKnownPublishedAt = this.getLastKnownPublishedAt(subscription)
+    if (lastKnownPublishedAt === 0) {
+      return subscription.onlyDownloadLatest ? items.slice(0, 1) : items
+    }
+    return items.filter((item) => item.publishedAt > lastKnownPublishedAt)
+  }
+
+  private getLastKnownPublishedAt(subscription: SubscriptionRule): number {
+    const fromItems = subscription.items.reduce((max, item) => Math.max(max, item.publishedAt), 0)
+    return Math.max(subscription.latestVideoPublishedAt ?? 0, fromItems)
+  }
+
+  private filterNewItems(subscription: SubscriptionRule, items: FeedItem[]): FeedItem[] {
+    const seenIds = new Set(subscription.items.map((item) => item.id))
+    return items.filter((item) => !seenIds.has(item.id))
+  }
+
+  private async queueDownload(
+    subscriptionId: string,
+    itemId: string,
+    url: string,
+    retryCount = 0
+  ): Promise<void> {
+    const downloadId = sanitizeDownloadId(subscriptionId, itemId)
+    const isRetry = retryCount > 0
+    if (this.downloads.has(downloadId) && !isRetry) {
+      return
+    }
+
+    const subscription = subscriptionManager.getById(subscriptionId)
+    if (!subscription) {
+      return
+    }
+
+    const settings = settingsManager.getAll()
+    const downloadDirectory = subscription.downloadDirectory?.trim() || settings.downloadPath
+    const namingTemplate =
+      subscription.namingTemplate?.trim() || DEFAULT_SUBSCRIPTION_FILENAME_TEMPLATE
+    ensureDirectoryExists(downloadDirectory)
+
+    const tags = Array.from(new Set([subscription.platform, ...subscription.tags]))
+
+    try {
+      downloadEngine.startDownload(downloadId, {
+        url,
+        type: 'video',
+        customDownloadPath: downloadDirectory,
+        customFilenameTemplate: namingTemplate,
+        tags,
+        origin: 'subscription',
+        subscriptionId
+      })
+
+      this.downloads.set(downloadId, {
+        subscriptionId,
+        itemId,
+        url,
+        retries: retryCount,
+        downloadId
+      })
+      subscriptionManager.updateFeedItemQueueState(subscriptionId, itemId, {
+        added: true,
+        downloadId
+      })
+    } catch (error) {
+      logger.error('Failed to start subscription download', { subscriptionId, itemId, error })
+      subscriptionManager.update(subscriptionId, {
+        status: 'failed'
+      })
+      subscriptionManager.updateFeedItemQueueState(subscriptionId, itemId, {
+        added: false,
+        downloadId: null
+      })
+    }
+  }
+
+  private getTrackedDownloadByUrl(url: string): TrackedDownload | undefined {
+    for (const tracked of this.downloads.values()) {
+      if (tracked.url === url) {
+        return tracked
+      }
+    }
+    return undefined
+  }
+}
+
+export const subscriptionScheduler = new SubscriptionScheduler()

src/main/lib/thumbnail-cache.ts

@@ -2,8 +2,9 @@ import crypto from 'node:crypto'
 import fs from 'node:fs'
 import fsPromises from 'node:fs/promises'
 import path from 'node:path'
-import { pathToFileURL } from 'node:url'
+import { APP_PROTOCOL_SCHEME } from '@shared/constants'
 import { app } from 'electron'
+import { scopedLoggers } from '../utils/logger'
 
 const SUPPORTED_EXTENSIONS = new Set(['.jpg', '.jpeg', '.png', '.webp', '.gif'])
 
@@ -37,7 +38,11 @@ export class ThumbnailCache {
       return null
     }
 
-    if (originalUrl.startsWith('file://') || originalUrl.startsWith('data:')) {
+    if (
+      originalUrl.startsWith(APP_PROTOCOL_SCHEME) ||
+      originalUrl.startsWith('file://') ||
+      originalUrl.startsWith('data:')
+    ) {
       return originalUrl
     }
 
@@ -59,7 +64,7 @@ export class ThumbnailCache {
 
       const existingPath = await this.findExistingPath(basePath, defaultExtension)
       if (existingPath) {
-        return pathToFileURL(existingPath).toString()
+        return this.toAppProtocolUrl(existingPath)
       }
 
       const response = await fetch(originalUrl)
@@ -75,9 +80,9 @@ export class ThumbnailCache {
       const finalPath = `${basePath}${extension}`
 
       await fsPromises.writeFile(finalPath, buffer)
-      return pathToFileURL(finalPath).toString()
+      return this.toAppProtocolUrl(finalPath)
     } catch (error) {
-      console.error('Failed to cache thumbnail:', error)
+      scopedLoggers.thumbnail.error('Failed to cache thumbnail:', error)
       return null
     }
   }
@@ -132,6 +137,13 @@ export class ThumbnailCache {
     const basePath = path.join(cacheDir, `${hash}`)
     return { basePath, defaultExtension: extension }
   }
+
+  private toAppProtocolUrl(filePath: string): string {
+    const userDataPath = app.getPath('userData')
+    const relativePath = path.relative(userDataPath, filePath).replace(/\\/g, '/')
+
+    return `${APP_PROTOCOL_SCHEME}${relativePath}`
+  }
 }
 
 export const thumbnailCache = new ThumbnailCache()

src/main/lib/ytdlp-manager.ts

@@ -3,6 +3,7 @@ import fs from 'node:fs'
 import os from 'node:os'
 import path from 'node:path'
 import type YTDlpWrap from 'yt-dlp-wrap-plus'
+import { scopedLoggers } from '../utils/logger'
 
 // Use require for yt-dlp-wrap-plus to handle CommonJS/ESM compatibility
 const YTDlpWrapModule = require('yt-dlp-wrap-plus')
@@ -12,11 +13,13 @@ type YTDlpWrapInstance = InstanceType<typeof YTDlpWrapCtor>
 class YtDlpManager {
   private ytdlpPath: string | null = null
   private ytdlpInstance: YTDlpWrapInstance | null = null
+  private jsRuntimeArgs: string[] = []
 
   async initialize(): Promise<void> {
     this.ytdlpPath = await this.findOrDownloadYtDlp()
     this.ytdlpInstance = new YTDlpWrapCtor(this.ytdlpPath)
-    console.log('yt-dlp initialized at:', this.ytdlpPath)
+    this.jsRuntimeArgs = this.resolveJsRuntimeArgs()
+    scopedLoggers.engine.info('yt-dlp initialized at:', this.ytdlpPath)
   }
 
   getInstance(): YTDlpWrapInstance {
@@ -33,6 +36,10 @@ class YtDlpManager {
     return this.ytdlpPath
   }
 
+  getJsRuntimeArgs(): string[] {
+    return [...this.jsRuntimeArgs]
+  }
+
   private getResourcesPath(): string {
     // In development, read from project root's resources
     if (process.env.NODE_ENV === 'development') {
@@ -57,7 +64,7 @@ class YtDlpManager {
 
     // Check environment variable first
     if (process.env.YTDLP_PATH && fs.existsSync(process.env.YTDLP_PATH)) {
-      console.log('Using yt-dlp from YTDLP_PATH:', process.env.YTDLP_PATH)
+      scopedLoggers.engine.info('Using yt-dlp from YTDLP_PATH:', process.env.YTDLP_PATH)
       return process.env.YTDLP_PATH
     }
 
@@ -65,13 +72,13 @@ class YtDlpManager {
     const resourcesPath = this.getResourcesPath()
     const bundledPath = path.join(resourcesPath, bundledName)
     if (fs.existsSync(bundledPath)) {
-      console.log('Using bundled yt-dlp:', bundledPath)
+      scopedLoggers.engine.info('Using bundled yt-dlp:', bundledPath)
       // Make executable on Unix-like systems if needed
       if (platform !== 'win32') {
         try {
           fs.chmodSync(bundledPath, 0o755)
         } catch (error) {
-          console.warn('Failed to set executable permission:', error)
+          scopedLoggers.engine.warn('Failed to set executable permission:', error)
         }
       }
       return bundledPath
@@ -82,7 +89,7 @@ class YtDlpManager {
       const possiblePaths = ['/opt/homebrew/bin/yt-dlp', '/usr/local/bin/yt-dlp']
       for (const p of possiblePaths) {
         if (fs.existsSync(p)) {
-          console.log('Using system yt-dlp:', p)
+          scopedLoggers.engine.info('Using system yt-dlp:', p)
           return p
         }
       }
@@ -93,7 +100,7 @@ class YtDlpManager {
       try {
         const systemPath = execSync('which yt-dlp').toString().trim()
         if (systemPath && fs.existsSync(systemPath)) {
-          console.log('Using system yt-dlp:', systemPath)
+          scopedLoggers.engine.info('Using system yt-dlp:', systemPath)
           return systemPath
         }
       } catch (_error) {
@@ -115,6 +122,92 @@ class YtDlpManager {
     )
   }
 
+  private resolveJsRuntimeArgs(): string[] {
+    const runtime = (process.env.YTDLP_JS_RUNTIME || 'deno').trim()
+    if (!runtime || runtime === 'none') {
+      return []
+    }
+
+    const runtimePath = this.resolveJsRuntimePath(runtime)
+    if (runtimePath) {
+      return ['--js-runtimes', `${runtime}:${runtimePath}`]
+    }
+
+    if (process.env.YTDLP_JS_RUNTIME) {
+      scopedLoggers.engine.warn(
+        `Requested JS runtime "${runtime}" was not found. Falling back to yt-dlp default detection.`
+      )
+    } else {
+      scopedLoggers.engine.warn(
+        'JS runtime not found. YouTube support may be limited without an external JS runtime.'
+      )
+    }
+
+    return process.env.YTDLP_JS_RUNTIME ? ['--js-runtimes', runtime] : []
+  }
+
+  private resolveJsRuntimePath(runtime: string): string | null {
+    const envPath = process.env.YTDLP_JS_RUNTIME_PATH?.trim()
+    if (envPath && fs.existsSync(envPath)) {
+      scopedLoggers.engine.info('Using JS runtime from YTDLP_JS_RUNTIME_PATH:', envPath)
+      return envPath
+    }
+
+    const platform = os.platform()
+    const resourcesPath = this.getResourcesPath()
+    const resourceCandidates: string[] = []
+
+    if (runtime === 'deno') {
+      resourceCandidates.push(platform === 'win32' ? 'deno.exe' : 'deno')
+    } else if (runtime === 'node') {
+      resourceCandidates.push(platform === 'win32' ? 'node.exe' : 'node')
+    } else if (runtime === 'bun') {
+      resourceCandidates.push(platform === 'win32' ? 'bun.exe' : 'bun')
+    } else if (runtime === 'quickjs') {
+      resourceCandidates.push(platform === 'win32' ? 'qjs.exe' : 'qjs')
+    } else {
+      resourceCandidates.push(runtime)
+      if (platform === 'win32' && !runtime.endsWith('.exe')) {
+        resourceCandidates.push(`${runtime}.exe`)
+      }
+    }
+
+    for (const candidate of resourceCandidates) {
+      const fullPath = path.join(resourcesPath, candidate)
+      if (fs.existsSync(fullPath)) {
+        if (platform !== 'win32') {
+          try {
+            fs.chmodSync(fullPath, 0o755)
+          } catch (error) {
+            scopedLoggers.engine.warn('Failed to set executable permission on JS runtime:', error)
+          }
+        }
+        scopedLoggers.engine.info('Using bundled JS runtime:', fullPath)
+        return fullPath
+      }
+    }
+
+    try {
+      if (platform === 'win32') {
+        const output = execSync(`where ${runtime}`).toString().split(/\r?\n/)[0]
+        if (output && fs.existsSync(output)) {
+          scopedLoggers.engine.info('Using system JS runtime:', output)
+          return output
+        }
+      } else {
+        const systemPath = execSync(`which ${runtime}`).toString().trim()
+        if (systemPath && fs.existsSync(systemPath)) {
+          scopedLoggers.engine.info('Using system JS runtime:', systemPath)
+          return systemPath
+        }
+      }
+    } catch (_error) {
+      // Runtime not found in PATH
+    }
+
+    return null
+  }
+
   // Removed runtime download/update to avoid network dependency in production builds
 }
 

src/main/local-api.ts

@@ -0,0 +1,191 @@
+import crypto from 'node:crypto'
+import http from 'node:http'
+import type { AddressInfo } from 'node:net'
+
+import log from 'electron-log/main'
+
+import { downloadEngine } from './lib/download-engine'
+
+const PORT_RANGE_START = 27100
+const PORT_RANGE_END = 27120
+const TOKEN_TTL_MS = 60_000
+
+type TokenRecord = {
+  expiresAt: number
+}
+
+let server: http.Server | null = null
+let serverPort: number | null = null
+const tokens = new Map<string, TokenRecord>()
+
+const isLoopbackAddress = (address?: string | null): boolean => {
+  if (!address) return false
+  return address === '127.0.0.1' || address === '::1' || address === '::ffff:127.0.0.1'
+}
+
+const writeJson = (res: http.ServerResponse, status: number, body: unknown): void => {
+  res.writeHead(status, {
+    'Content-Type': 'application/json; charset=utf-8',
+    'Access-Control-Allow-Origin': '*',
+    'Access-Control-Allow-Methods': 'GET, OPTIONS',
+    'Access-Control-Allow-Headers': 'Content-Type'
+  })
+  res.end(JSON.stringify(body))
+}
+
+const writeEmpty = (res: http.ServerResponse, status: number): void => {
+  res.writeHead(status, {
+    'Access-Control-Allow-Origin': '*',
+    'Access-Control-Allow-Methods': 'GET, OPTIONS',
+    'Access-Control-Allow-Headers': 'Content-Type'
+  })
+  res.end()
+}
+
+const issueToken = (): string => {
+  const token = crypto.randomBytes(16).toString('hex')
+  tokens.set(token, { expiresAt: Date.now() + TOKEN_TTL_MS })
+  return token
+}
+
+const consumeToken = (token?: string | null): boolean => {
+  if (!token) return false
+  const record = tokens.get(token)
+  if (!record) return false
+  if (Date.now() > record.expiresAt) {
+    tokens.delete(token)
+    return false
+  }
+  tokens.delete(token)
+  return true
+}
+
+const handleRequest = async (
+  req: http.IncomingMessage,
+  res: http.ServerResponse
+): Promise<void> => {
+  try {
+    if (!isLoopbackAddress(req.socket.remoteAddress)) {
+      writeJson(res, 403, { error: 'Forbidden' })
+      return
+    }
+
+    if (req.method === 'OPTIONS') {
+      writeEmpty(res, 204)
+      return
+    }
+
+    if (!req.url) {
+      writeJson(res, 400, { error: 'Missing URL' })
+      return
+    }
+
+    const requestUrl = new URL(req.url, 'http://127.0.0.1')
+    const pathname = requestUrl.pathname
+
+    if (req.method !== 'GET') {
+      writeJson(res, 405, { error: 'Method not allowed' })
+      return
+    }
+
+    if (pathname === '/token') {
+      const token = issueToken()
+      writeJson(res, 200, { token, expiresInMs: TOKEN_TTL_MS })
+      return
+    }
+
+    if (pathname === '/video-info') {
+      const token = requestUrl.searchParams.get('token')
+      if (!consumeToken(token)) {
+        writeJson(res, 401, { error: 'Invalid token' })
+        return
+      }
+
+      const targetUrl = requestUrl.searchParams.get('url')
+      if (!targetUrl || !targetUrl.trim()) {
+        writeJson(res, 400, { error: 'Missing url' })
+        return
+      }
+
+      try {
+        const info = await downloadEngine.getVideoInfo(targetUrl.trim())
+        writeJson(res, 200, {
+          title: info.title,
+          thumbnail: info.thumbnail,
+          duration: info.duration,
+          formats: info.formats ?? []
+        })
+      } catch (error) {
+        const message = error instanceof Error ? error.message : 'Failed to fetch video info'
+        const details =
+          error instanceof Error
+            ? error.stack
+            : typeof error === 'object' && error && 'stderr' in error
+              ? String((error as { stderr?: unknown }).stderr ?? '')
+              : undefined
+        writeJson(res, 500, { error: message, details })
+      }
+      return
+    }
+
+    if (pathname === '/status') {
+      writeJson(res, 200, { ok: true })
+      return
+    }
+
+    writeJson(res, 404, { error: 'Not found' })
+  } catch (error) {
+    const message = error instanceof Error ? error.message : 'Unhandled request error'
+    writeJson(res, 500, { error: message })
+  }
+}
+
+const startServerOnPort = (port: number): Promise<http.Server> =>
+  new Promise((resolve, reject) => {
+    const httpServer = http.createServer((req, res) => {
+      void handleRequest(req, res)
+    })
+
+    httpServer.once('error', (error) => {
+      httpServer.close()
+      reject(error)
+    })
+
+    httpServer.listen(port, '127.0.0.1', () => resolve(httpServer))
+  })
+
+export async function startExtensionApiServer(): Promise<number | null> {
+  if (server && serverPort) {
+    return serverPort
+  }
+
+  for (let port = PORT_RANGE_START; port <= PORT_RANGE_END; port += 1) {
+    try {
+      server = await startServerOnPort(port)
+      const address = server.address() as AddressInfo | null
+      serverPort = address?.port ?? port
+      log.info(`Extension API listening on 127.0.0.1:${serverPort}`)
+      return serverPort
+    } catch (error) {
+      const err = error as NodeJS.ErrnoException
+      if (err.code !== 'EADDRINUSE') {
+        log.warn('Extension API failed to start on port:', port, err)
+      }
+    }
+  }
+
+  log.error(`Extension API failed to bind any port in range ${PORT_RANGE_START}-${PORT_RANGE_END}`)
+  return null
+}
+
+export async function stopExtensionApiServer(): Promise<void> {
+  if (!server) return
+
+  await new Promise<void>((resolve) => {
+    server?.close(() => resolve())
+  })
+
+  server = null
+  serverPort = null
+  tokens.clear()
+}

src/main/settings.ts

@@ -1,13 +1,32 @@
+import fs from 'node:fs'
 import os from 'node:os'
 import path from 'node:path'
 import type { AppSettings } from '../shared/types'
 import { defaultSettings } from '../shared/types'
+import { scopedLoggers } from './utils/logger'
 
 // Use require for electron-store to avoid CommonJS/ESM issues
 const ElectronStore = require('electron-store')
 // Access the default export
 const Store = ElectronStore.default || ElectronStore
 
+const OLD_DEFAULT_DOWNLOAD_PATH = path.join(os.homedir(), 'Downloads')
+const ensureDirectoryExists = (dir: string) => {
+  try {
+    fs.mkdirSync(dir, { recursive: true })
+  } catch (error) {
+    scopedLoggers.system.error('Failed to ensure download directory:', error)
+  }
+}
+
+const resolveDefaultDownloadPath = () => {
+  const downloadDir = path.join(os.homedir(), 'Downloads', 'VidBee')
+  ensureDirectoryExists(downloadDir)
+  return downloadDir
+}
+
+const DEFAULT_DOWNLOAD_PATH = resolveDefaultDownloadPath()
+
 class SettingsManager {
   // biome-ignore lint/suspicious/noExplicitAny: electron-store requires dynamic import
   private store: any
@@ -16,9 +35,10 @@ class SettingsManager {
     this.store = new Store({
       defaults: {
         ...defaultSettings,
-        downloadPath: path.join(os.homedir(), 'Downloads')
+        downloadPath: DEFAULT_DOWNLOAD_PATH
       }
     })
+    this.ensureDownloadDirectory()
   }
 
   get<K extends keyof AppSettings>(key: K): AppSettings[K] {
@@ -26,15 +46,25 @@ class SettingsManager {
   }
 
   set<K extends keyof AppSettings>(key: K, value: AppSettings[K]): void {
+    if (key === 'downloadPath' && typeof value === 'string') {
+      ensureDirectoryExists(value)
+    }
     this.store.set(key, value)
   }
 
   getAll(): AppSettings {
-    return this.store.store
+    return {
+      ...defaultSettings,
+      downloadPath: DEFAULT_DOWNLOAD_PATH,
+      ...this.store.store
+    }
   }
 
   setAll(settings: Partial<AppSettings>): void {
     for (const [key, value] of Object.entries(settings)) {
+      if (key === 'downloadPath' && typeof value === 'string') {
+        ensureDirectoryExists(value)
+      }
       this.store.set(key as keyof AppSettings, value as AppSettings[keyof AppSettings])
     }
   }
@@ -43,8 +73,25 @@ class SettingsManager {
     this.store.clear()
     this.store.set({
       ...defaultSettings,
-      downloadPath: path.join(os.homedir(), 'Downloads')
+      downloadPath: DEFAULT_DOWNLOAD_PATH
     })
+    ensureDirectoryExists(DEFAULT_DOWNLOAD_PATH)
+  }
+
+  private ensureDownloadDirectory(): void {
+    try {
+      const currentPath: string | undefined = this.store.get('downloadPath')
+      const normalizedDownloadPath =
+        !currentPath || currentPath === OLD_DEFAULT_DOWNLOAD_PATH
+          ? DEFAULT_DOWNLOAD_PATH
+          : currentPath
+      if (normalizedDownloadPath !== currentPath) {
+        this.store.set('downloadPath', normalizedDownloadPath)
+      }
+      ensureDirectoryExists(normalizedDownloadPath)
+    } catch (error) {
+      scopedLoggers.system.error('Failed to verify download directory:', error)
+    }
   }
 }
 

src/main/tray.ts

@@ -1,5 +1,7 @@
+import { normalizeLanguageCode } from '@shared/languages'
 import { app, BrowserWindow, Menu, nativeImage, Tray } from 'electron'
 import appIcon from '../../resources/icon.png?asset'
+import trayIcon from '../../resources/tray-icon.png?asset'
 import { settingsManager } from './settings'
 
 let tray: Tray | null = null
@@ -8,7 +10,7 @@ let tray: Tray | null = null
  * Get translated text based on current language setting
  */
 function t(key: 'showHome' | 'quit'): string {
-  const language = settingsManager.get('language') || 'en'
+  const language = normalizeLanguageCode(settingsManager.get('language'))
 
   const translations = {
     en: {
@@ -16,12 +18,12 @@ function t(key: 'showHome' | 'quit'): string {
       quit: 'Quit'
     },
     zh: {
-      showHome: '打开首页',
-      quit: '关闭应用'
+      showHome: '显示主页',
+      quit: '退出应用'
     }
   }
 
-  const displayLang = language.startsWith('en') ? 'en' : 'zh'
+  const displayLang = language.startsWith('zh') ? 'zh' : 'en'
   return translations[displayLang][key]
 }
 
@@ -85,9 +87,17 @@ export function createTray(): void {
     return
   }
 
-  const trayIcon = nativeImage.createFromPath(appIcon)
+  // Use 16x16 icon for macOS tray, fallback to app icon for other platforms
+  const iconPath = process.platform === 'darwin' ? trayIcon : appIcon
+  const trayIconImage = nativeImage.createFromPath(iconPath)
 
-  tray = new Tray(trayIcon)
+  // For macOS, ensure the icon is properly sized
+  if (process.platform === 'darwin') {
+    // Resize to 16x16 for macOS tray
+    trayIconImage.setTemplateImage(true)
+  }
+
+  tray = new Tray(trayIconImage)
 
   // Set tooltip
   tray.setToolTip('VidBee')

src/main/utils/auto-launch.ts

@@ -0,0 +1,38 @@
+import { app } from 'electron'
+import log from 'electron-log/main'
+
+const SUPPORTED_PLATFORMS = new Set(['darwin', 'win32'])
+
+export function isAutoLaunchSupported(): boolean {
+  return SUPPORTED_PLATFORMS.has(process.platform)
+}
+
+export function applyAutoLaunchSetting(enabled: boolean): void {
+  if (!isAutoLaunchSupported()) {
+    log.info('Auto launch is not supported on this platform, skipping setting update')
+    return
+  }
+
+  const updateSetting = () => {
+    try {
+      const options: Parameters<typeof app.setLoginItemSettings>[0] = {
+        openAtLogin: enabled
+      }
+
+      if (process.platform === 'darwin') {
+        options.openAsHidden = true
+      }
+
+      app.setLoginItemSettings(options)
+      log.info(`Auto launch ${enabled ? 'enabled' : 'disabled'}`)
+    } catch (error) {
+      log.error('Failed to update login item settings:', error)
+    }
+  }
+
+  if (app.isReady()) {
+    updateSetting()
+  } else {
+    app.once('ready', updateSetting)
+  }
+}

src/main/utils/dock.ts

@@ -0,0 +1,16 @@
+import { app } from 'electron'
+
+/**
+ * Apply Dock visibility preference on macOS.
+ */
+export function applyDockVisibility(hideDockIcon: boolean): void {
+  if (process.platform !== 'darwin' || !app.dock) {
+    return
+  }
+
+  if (hideDockIcon) {
+    app.dock.hide()
+  } else {
+    app.dock.show()
+  }
+}

src/main/utils/logger.ts

@@ -0,0 +1,25 @@
+/**
+ * Main process logger utility
+ * Directly use electron-log/main
+ */
+
+import log from 'electron-log/main'
+
+// Export electron-log instance
+export default log
+
+// Export commonly used logging methods
+export const logger = log
+
+// Predefined scoped loggers
+export const scopedLoggers = {
+  main: log.scope('main'),
+  ipc: log.scope('ipc'),
+  window: log.scope('window'),
+  download: log.scope('download'),
+  engine: log.scope('engine'),
+  system: log.scope('system'),
+  storage: log.scope('storage'),
+  thumbnail: log.scope('thumbnail'),
+  history: log.scope('history')
+}

src/main/utils/path-helpers.ts

@@ -0,0 +1,19 @@
+import os from 'node:os'
+import path from 'node:path'
+
+export const resolvePathWithHome = (rawPath?: string | null): string | undefined => {
+  const trimmed = rawPath?.trim()
+  if (!trimmed) {
+    return undefined
+  }
+
+  if (trimmed === '~') {
+    return os.homedir()
+  }
+
+  if (trimmed.startsWith('~/') || trimmed.startsWith('~\\')) {
+    return path.join(os.homedir(), trimmed.slice(2))
+  }
+
+  return trimmed
+}