from datetime import datetime, timezone
from typing import Optional, TYPE_CHECKING

from sqlalchemy import String, DateTime, ForeignKey
from sqlalchemy.dialects.postgresql import BYTEA
from sqlalchemy.orm import Mapped, mapped_column, relationship

from models.base import BaseModel
from models.mixins import IdMixin

if TYPE_CHECKING:
    from models.auth import User


class CeleryTask(BaseModel, IdMixin):
    __tablename__ = "celery_taskmeta"

    task_id: Mapped[int] = mapped_column(String(155), unique=True)
    status: Mapped[int] = mapped_column(String(50))
    result: Mapped[bytes] = mapped_column(BYTEA)
    date_done: Mapped[datetime] = mapped_column(
        DateTime(timezone=True),
        default=lambda: datetime.now(timezone.utc),
    )
    traceback: Mapped[str] = mapped_column()
    name: Mapped[str] = mapped_column(String(155))
    args: Mapped[bytes] = mapped_column(BYTEA)
    kwargs: Mapped[bytes] = mapped_column(BYTEA)
    worker: Mapped[str] = mapped_column(String(155))
    retries: Mapped[int] = mapped_column()
    queue: Mapped[str] = mapped_column(String(155))

    user_id: Mapped[int] = mapped_column(ForeignKey("users.id"))
    user: Mapped["User"] = relationship(
        back_populates="celery_tasks",
        lazy="noload",
    )


class CeleryActiveTask(BaseModel):
    __tablename__ = "celery_taskmeta_active"

    task_id: Mapped[str] = mapped_column(
        String(155),
        primary_key=True,
    )
    status: Mapped[str] = mapped_column(String(50))
    name: Mapped[str] = mapped_column(String(155))
    is_notification_hidden: Mapped[bool] = mapped_column(
        default=False,
        server_default="0",
    )

    user_id: Mapped[Optional[int]] = mapped_column(ForeignKey("users.id"))
    user: Mapped[Optional["User"]] = relationship(
        back_populates="celery_active_tasks",
        lazy="noload",
    )