import uuid
from datetime import datetime

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

from app.models.base import Base, GUID


class Utilisateur(Base):
    __tablename__ = "utilisateurs"

    id: Mapped[uuid.UUID] = mapped_column(GUID, primary_key=True, default=uuid.uuid4)
    email: Mapped[str] = mapped_column(String(255), unique=True, nullable=False, index=True)
    mot_de_passe_hash: Mapped[str] = mapped_column(String(255), nullable=False)
    nom: Mapped[str] = mapped_column(String(100), nullable=False)
    prenom: Mapped[str] = mapped_column(String(100), nullable=False)
    type_utilisateur: Mapped[str] = mapped_column(
        String(20), default="UTILISATEUR", nullable=False, index=True
    )
    bureau_genre_id: Mapped[str | None] = mapped_column(String(100), nullable=True)
    telephone: Mapped[str | None] = mapped_column(String(20), nullable=True)
    filiere: Mapped[str | None] = mapped_column(String(150), nullable=True)
    campus: Mapped[str | None] = mapped_column(String(150), nullable=True)
    avatar_url: Mapped[str | None] = mapped_column(String(500), nullable=True)
    est_actif: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    premiere_connexion: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
    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
    )
    derniere_connexion: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), nullable=True
    )

    # Relationships
    sessions: Mapped[list["Session"]] = relationship(
        "Session", back_populates="utilisateur", cascade="all, delete-orphan"
    )
    preferences: Mapped["Preference | None"] = relationship(
        "Preference", back_populates="utilisateur", uselist=False, cascade="all, delete-orphan"
    )
    signalements_soumis: Mapped[list["Signalement"]] = relationship(
        "Signalement",
        foreign_keys="[Signalement.utilisateur_id]",
        back_populates="utilisateur",
    )
    signalements_assignes: Mapped[list["Signalement"]] = relationship(
        "Signalement",
        foreign_keys="[Signalement.gestionnaire_id]",
        back_populates="gestionnaire",
    )


class Session(Base):
    """Tracks active JWT sessions for token revocation on logout."""

    __tablename__ = "sessions"

    id: Mapped[uuid.UUID] = mapped_column(GUID, primary_key=True, default=uuid.uuid4)
    utilisateur_id: Mapped[uuid.UUID] = mapped_column(
        GUID,
        ForeignKey("utilisateurs.id", ondelete="CASCADE"),
        nullable=False,
        index=True,
    )
    jti: Mapped[str] = mapped_column(String(100), unique=True, nullable=False, index=True)
    est_actif: Mapped[bool] = mapped_column(Boolean, default=True, nullable=False)
    date_creation: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False
    )
    date_expiration: Mapped[datetime] = mapped_column(DateTime(timezone=True), nullable=False)
    appareil: Mapped[str | None] = mapped_column(String(100), nullable=True)
    localisation: Mapped[str | None] = mapped_column(String(200), nullable=True)

    utilisateur: Mapped["Utilisateur"] = relationship("Utilisateur", back_populates="sessions")


# Late import to avoid circular references in type annotations
from app.models.signalement import Signalement  # noqa: E402, F401
from app.models.preference import Preference  # noqa: E402, F401