import uuid
from datetime import datetime

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

from app.models.base import Base, GUID


class Poste(Base):
    __tablename__ = "postes"

    id: Mapped[uuid.UUID] = mapped_column(GUID, primary_key=True, default=uuid.uuid4)
    titre: Mapped[str] = mapped_column(String(255), nullable=False)
    contenu: Mapped[str] = mapped_column(Text, nullable=False)
    auteur_id: Mapped[uuid.UUID | None] = mapped_column(
        GUID,
        ForeignKey("utilisateurs.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    statut: Mapped[str] = mapped_column(
        String(20), default="NOUVEAU", nullable=False, index=True
    )
    approuver_par_id: Mapped[uuid.UUID | None] = mapped_column(
        GUID,
        ForeignKey("utilisateurs.id", ondelete="SET NULL"),
        nullable=True,
        index=True,
    )
    est_epingle: Mapped[bool] = mapped_column(Boolean, default=False, nullable=False)
    categorie: Mapped[str | None] = mapped_column(String(100), nullable=True)
    image_url: Mapped[str | None] = mapped_column(String(500), nullable=True)
    tags: Mapped[list[str]] = mapped_column(
        JSON, default=list, nullable=False, server_default="[]"
    )
    style_metadata: Mapped[dict | None] = mapped_column(
        JSON, default=dict, nullable=True, server_default="{}"
    )
    date_creation: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), nullable=False, index=True
    )
    date_modification: Mapped[datetime | None] = mapped_column(
        DateTime(timezone=True), onupdate=func.now(), nullable=True
    )

    auteur: Mapped["Utilisateur | None"] = relationship(
        "Utilisateur", foreign_keys=[auteur_id]
    )
    approuver_par: Mapped["Utilisateur | None"] = relationship(
        "Utilisateur", foreign_keys=[approuver_par_id]
    )
    commentaires: Mapped[list["Commentaire"]] = relationship(
        "Commentaire", back_populates="poste", cascade="all, delete-orphan"
    )
    reactions: Mapped[list["Reaction"]] = relationship(
        "Reaction", back_populates="poste", cascade="all, delete-orphan"
    )


from app.models.utilisateur import Utilisateur  # noqa: E402, F401
from app.models.commentaire import Commentaire  # noqa: E402, F401
from app.models.reaction import Reaction  # noqa: E402, F401