from __future__ import annotations

import uuid

from sqlalchemy import Boolean, ForeignKey, JSON, String, Text
from sqlalchemy.dialects.postgresql import UUID
from sqlalchemy.orm import Mapped, mapped_column

from cpv3.db.base import Base, BaseModelMixin


class Notification(Base, BaseModelMixin):
    __tablename__ = "notifications"

    user_id: Mapped[uuid.UUID] = mapped_column(
        UUID(as_uuid=True), ForeignKey("users.id", ondelete="CASCADE"), index=True
    )
    job_id: Mapped[uuid.UUID | None] = mapped_column(
        UUID(as_uuid=True), ForeignKey("jobs.id", ondelete="SET NULL"), nullable=True
    )
    project_id: Mapped[uuid.UUID | None] = mapped_column(
        UUID(as_uuid=True),
        ForeignKey("projects.id", ondelete="SET NULL"),
        nullable=True,
    )

    notification_type: Mapped[str] = mapped_column(String(32))
    title: Mapped[str] = mapped_column(String(255))
    message: Mapped[str | None] = mapped_column(Text, nullable=True)
    payload: Mapped[dict | None] = mapped_column(JSON, nullable=True)
    is_read: Mapped[bool] = mapped_column(Boolean, default=False)