from datetime import datetime
from typing import TYPE_CHECKING

from sqlalchemy.orm import mapped_column, Mapped, relationship

from models.base import BaseModel

if TYPE_CHECKING:
    from board import Board
    from attribute import Attribute
    from module import Module
    from card_tag import CardTag


class Project(BaseModel):
    __tablename__ = 'projects'

    id: Mapped[int] = mapped_column(primary_key=True)
    name: Mapped[str] = mapped_column(nullable=False)
    created_at: Mapped[datetime] = mapped_column(nullable=False)
    is_deleted: Mapped[bool] = mapped_column(default=False)

    boards: Mapped[list['Board']] = relationship(
        'Board',
        back_populates='project',
        lazy='noload',
    )

    attributes: Mapped[list['Attribute']] = relationship(
        'Attribute',
        secondary='project_attribute',
        back_populates='projects',
        lazy='selectin',
    )

    modules: Mapped[list['Module']] = relationship(
        'Module',
        secondary='project_module',
        back_populates='projects',
        lazy='selectin',
        order_by='asc(Module.id)',
    )

    tags: Mapped[list['CardTag']] = relationship(
        'CardTag',
        back_populates='project',
        primaryjoin="and_(Project.id == CardTag.project_id, CardTag.is_deleted == False)",
        order_by='asc(CardTag.id)',
        lazy='selectin',
    )