import uuid
from datetime import datetime

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

from app.core.actors import GuestSessionStatus
from app.models.base import Base, GUID


class GuestSession(Base):
    __tablename__ = "guest_sessions"

    id: Mapped[uuid.UUID] = mapped_column(GUID, primary_key=True, default=uuid.uuid4)
    statut: Mapped[str] = mapped_column(
        String(20),
        nullable=False,
        default=GuestSessionStatus.ACTIVE.value,
        index=True,
    )
    telephone_hash: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
    telephone_chiffre: Mapped[str | None] = mapped_column(String(255), nullable=True)
    device_fingerprint: Mapped[str | None] = mapped_column(String(500), nullable=True)

    date_creation: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    date_modification: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), onupdate=func.now(), nullable=True
    )
    last_seen_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)

    merged_into_user_id: Mapped[uuid.UUID | None] = mapped_column(
        GUID,
        ForeignKey("utilisateurs.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    merged_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True), nullable=True)

    merged_into_user: Mapped["Utilisateur | None"] = relationship("Utilisateur")


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