from datetime import datetime
from uuid import uuid4

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

from app.db.base import Base


class PermissionGroupMember(Base):
    __tablename__ = "permission_group_members"
    __table_args__ = (UniqueConstraint("group_id", "authentik_sub", name="uq_permission_group_members_group_sub"),)

    id: Mapped[str] = mapped_column(UUID(as_uuid=False), primary_key=True, default=lambda: str(uuid4()))
    group_id: Mapped[str] = mapped_column(
        UUID(as_uuid=False), ForeignKey("permission_groups.id", ondelete="CASCADE"), nullable=False
    )
    authentik_sub: Mapped[str] = mapped_column(String(255), nullable=False)
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), nullable=False)