from sqlalchemy import ForeignKey, Index, String
from sqlalchemy.orm import Mapped, mapped_column

from app.models.base import Base, TimestampMixin


class TeamJoinRequest(Base, TimestampMixin):
    __tablename__ = "team_join_requests"
    __table_args__ = (
        Index("ix_tjr_team_status", "team_id", "status"),
    )

    id: Mapped[str] = mapped_column(String(32), primary_key=True)
    team_id: Mapped[str] = mapped_column(String(32), ForeignKey("teams.id"), index=True, nullable=False)
    user_id: Mapped[str] = mapped_column(String(32), ForeignKey("users.id"), index=True, nullable=False)
    invitation_id: Mapped[str | None] = mapped_column(String(32), ForeignKey("team_invitations.id"), nullable=True)
    status: Mapped[str] = mapped_column(String(16), default="pending", server_default="pending", nullable=False)
    note: Mapped[str | None] = mapped_column(String(256), nullable=True)
    handled_by: Mapped[str | None] = mapped_column(String(32), nullable=True)