from sqlalchemy import String, DateTime, ForeignKey, func
from sqlalchemy.orm import Mapped, mapped_column, relationship

from app.db.base import Base


class ApiKey(Base):
    __tablename__ = "api_keys"

    id: Mapped[int] = mapped_column(primary_key=True)
    user_id: Mapped[int] = mapped_column(ForeignKey("users.id", ondelete="CASCADE"), index=True, nullable=False)
    
    key_hash: Mapped[str] = mapped_column(String(255), unique=True, index=True, nullable=False)
    name: Mapped[str] = mapped_column(String(200), nullable=False)
    
    created_at: Mapped[DateTime] = mapped_column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    last_used_at: Mapped[DateTime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    expires_at: Mapped[DateTime | None] = mapped_column(DateTime(timezone=True), nullable=True)
    
    user = relationship("User", back_populates="api_keys")