from datetime import datetime

from sqlalchemy import Boolean, DateTime, Integer, String, BigInteger, func
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.database import Base


class User(Base):
    __tablename__ = "users"

    id: Mapped[int] = mapped_column(Integer, primary_key=True)
    telegram_id: Mapped[int] = mapped_column(BigInteger, unique=True, nullable=False)
    username: Mapped[str | None] = mapped_column(String(64), nullable=True)
    full_name: Mapped[str] = mapped_column(String(128), nullable=False)
    language_code: Mapped[str] = mapped_column(String(8), default="ru")
    is_active: Mapped[bool] = mapped_column(Boolean, default=True)
    created_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now()
    )
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now()
    )

    payments: Mapped[list["Payment"]] = relationship(
        back_populates="user", cascade="all, delete-orphan"
    )
    notifications: Mapped[list["Notification"]] = relationship(
        back_populates="user", cascade="all, delete-orphan"
    )

    def __repr__(self) -> str:
        return f"<User id={self.id} tg={self.telegram_id} {self.username}>"