feat: implement version comparison for updates, enhance TitleBar component with platform support, and improve language handling in settings

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 {