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 Role(Base):
    __tablename__ = "roles"
    __table_args__ = (
        UniqueConstraint("system_id", "name", name="uq_roles_system_name"),
        UniqueConstraint("system_id", "role_code", name="uq_roles_system_role_code"),
    )

    id: Mapped[str] = mapped_column(UUID(as_uuid=False), primary_key=True, default=lambda: str(uuid4()))
    role_key: Mapped[str] = mapped_column(String(128), unique=True, nullable=False, index=True)
    role_code: Mapped[str] = mapped_column(String(255), nullable=False, index=True)
    system_id: Mapped[str] = mapped_column(UUID(as_uuid=False), ForeignKey("systems.id", ondelete="CASCADE"), nullable=False)
    name: Mapped[str] = mapped_column(String(255), nullable=False)
    description: Mapped[str | None] = mapped_column(String(1024))
    status: Mapped[str] = mapped_column(String(16), nullable=False, default="active")
    created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), nullable=False)
    updated_at: Mapped[datetime] = mapped_column(
        DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False
    )

    @property
    def provider_role_name(self) -> str:
        return self.name

    @provider_role_name.setter
    def provider_role_name(self, value: str) -> None:
        self.name = value