from datetime import datetime

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

from app.db.base import Base


class Report(Base):
    __tablename__ = "reports"

    id: Mapped[int] = mapped_column(primary_key=True, autoincrement=True)
    reporter_id: Mapped[int] = mapped_column(Integer, ForeignKey("users.id"), nullable=False)
    target_type: Mapped[str] = mapped_column(String(50), nullable=False, index=True)
    target_id: Mapped[int] = mapped_column(Integer, nullable=False)
    reason: Mapped[str] = mapped_column(Text, nullable=False)
    status: Mapped[str] = mapped_column(String(20), default="pending")
    handler_id: Mapped[int | None] = mapped_column(Integer, ForeignKey("users.id"), nullable=True)
    conclusion: Mapped[str | None] = mapped_column(Text)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
    resolved_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))

    reporter = relationship("User", foreign_keys=[reporter_id], lazy="selectin")
    handler = relationship("User", foreign_keys=[handler_id], lazy="selectin")

    def __repr__(self) -> str:
        return f"<Report {self.id} {self.target_type}:{self.target_id}>"