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

from app.core.database import Base


class ExiledGame(Base):
    """Изгнанные игры участника - не будут выпадать при спине"""
    __tablename__ = "exiled_games"
    __table_args__ = (
        UniqueConstraint("participant_id", "game_id", name="unique_participant_game_exile"),
    )

    id: Mapped[int] = mapped_column(primary_key=True)
    participant_id: Mapped[int] = mapped_column(
        Integer, ForeignKey("participants.id", ondelete="CASCADE"), index=True
    )
    game_id: Mapped[int] = mapped_column(
        Integer, ForeignKey("games.id", ondelete="CASCADE")
    )
    assignment_id: Mapped[int | None] = mapped_column(
        Integer, ForeignKey("assignments.id", ondelete="SET NULL"), nullable=True
    )
    exiled_at: Mapped[datetime] = mapped_column(DateTime, default=datetime.utcnow)
    exiled_by: Mapped[str] = mapped_column(String(20))  # "user" | "organizer" | "admin"
    reason: Mapped[str | None] = mapped_column(String(500), nullable=True)

    # Soft-delete для истории
    is_active: Mapped[bool] = mapped_column(Boolean, default=True, index=True)
    unexiled_at: Mapped[datetime | None] = mapped_column(DateTime, nullable=True)
    unexiled_by: Mapped[str | None] = mapped_column(String(20), nullable=True)

    # Relationships
    participant: Mapped["Participant"] = relationship("Participant")
    game: Mapped["Game"] = relationship("Game")
    assignment: Mapped["Assignment"] = relationship("Assignment")