from typing import TYPE_CHECKING

from sqlalchemy import Table, Column, ForeignKey
from sqlalchemy.orm import Mapped, mapped_column, relationship

from models.base import BaseModel

if TYPE_CHECKING:
    from models import Project


project_module = Table(
    'project_module',
    BaseModel.metadata,
    Column('project_id', ForeignKey('projects.id')),
    Column('module_id', ForeignKey('modules.id')),
)


class Module(BaseModel):
    __tablename__ = 'modules'

    id: Mapped[int] = mapped_column(primary_key=True)
    key: Mapped[str] = mapped_column(unique=True, nullable=False)
    is_deleted: Mapped[bool] = mapped_column(default=False)

    projects: Mapped[list['Project']] = relationship(
        'Project',
        uselist=True,
        secondary='project_module',
        back_populates='modules',
        lazy='noload',
    )