from __future__ import annotations
from datetime import datetime
from sqlalchemy import ForeignKey, String, func, DateTime, Column
from sqlalchemy.orm import Mapped, mapped_column, relationship
from app.db.session import Base

class Bot(Base):
    __tablename__ = "bots"

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    bot_id: Mapped[int] = mapped_column()  # Telegram bot ID
    owner_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"))
    name: Mapped[str] = mapped_column(String(64))
    username: Mapped[str | None] = mapped_column(String(64))
    token_enc: Mapped[str] = mapped_column(String(512))
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    owner = relationship("User")
    channels = relationship("Channel", back_populates="bot")