from datetime import datetime

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

from app.db.base import Base


class Rating(Base):
    __tablename__ = "ratings"
    __table_args__ = (UniqueConstraint("user_id", "spot_id", name="uq_user_spot_rating"),)

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    spot_id: Mapped[int] = mapped_column(Integer, ForeignKey("spots.id"), nullable=False, index=True)
    user_id: Mapped[int] = mapped_column(Integer, ForeignKey("users.id"), nullable=False)
    score: Mapped[int] = mapped_column(Integer, nullable=False)
    short_comment: Mapped[str | None] = mapped_column(String(200))
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())

    user = relationship("User", lazy="selectin")

    def __repr__(self) -> str:
        return f"<Rating {self.id} spot={self.spot_id} score={self.score}>"