from datetime import datetime
from uuid import uuid4

from sqlalchemy import DateTime, String, UniqueConstraint, func
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column

from app.db.base import Base


class AuthSyncState(Base):
    __tablename__ = "auth_sync_state"
    __table_args__ = (UniqueConstraint("entity_type", "entity_id", name="uq_auth_sync_state_entity"),)

    id: Mapped[str] = mapped_column(UUID(as_uuid=False), primary_key=True, default=lambda: str(uuid4()))
    entity_type: Mapped[str] = mapped_column(String(32), nullable=False)
    entity_id: Mapped[str] = mapped_column(UUID(as_uuid=False), nullable=False)
    last_synced_at: Mapped[datetime | None] = mapped_column(DateTime(timezone=True))
    source_version: Mapped[str | None] = mapped_column(String(255))
    last_error: Mapped[str | None] = mapped_column(String)
    updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), nullable=False)