import uuid
from datetime import datetime

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

from app.models.base import Base, GUID


class InscriptionEvenement(Base):
    __tablename__ = "inscriptions_evenements"
    __table_args__ = (
        UniqueConstraint("calendrier_id", "utilisateur_id", name="uq_inscription_calendrier_user"),
    )

    id: Mapped[uuid.UUID] = mapped_column(GUID, primary_key=True, default=uuid.uuid4)
    calendrier_id: Mapped[uuid.UUID] = mapped_column(
        GUID,
        ForeignKey("calendriers.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    utilisateur_id: Mapped[uuid.UUID] = mapped_column(
        GUID,
        ForeignKey("utilisateurs.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    statut: Mapped[str] = mapped_column(String(20), default="INSCRIT", nullable=False)
    # Possible values: INSCRIT, ASSISTE, ANNULE
    date_inscription: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )

    calendrier: Mapped["Calendrier"] = relationship("Calendrier", back_populates="inscriptions")
    utilisateur: Mapped["Utilisateur"] = relationship("Utilisateur")


from app.models.calendrier import Calendrier  # noqa: E402, F401
from app.models.utilisateur import Utilisateur  # noqa: E402, F401