# -*- coding: utf-8 -*-
# @Time    : 2024/11/19 下午6:09
# @Author  : 河瞬
# @FileName: new_models.py
# @Software: PyCharm
from datetime import datetime
from typing import List, Optional

from sqlmodel import Field, Relationship, SQLModel


class Tenant(SQLModel, table=True):
    __tablename__ = 'Tenant'
    id: Optional[int] = Field(default=None, primary_key=True)
    name: str = Field(index=True)
    users: List["User"] = Relationship(back_populates="tenant")
    projects: List["Project"] = Relationship(back_populates="owner")


class ProjectUserLink(SQLModel, table=True):
    __tablename__ = 'ProjectUserLink'
    project_id: int | None = Field(default=None, foreign_key="Project.id", primary_key=True)
    user_id: int | None = Field(default=None, foreign_key="User.id", primary_key=True)


class User(SQLModel, table=True):
    __tablename__ = 'User'
    id: Optional[int] = Field(default=None, primary_key=True)
    username: str = Field(index=True)
    password: str
    role: int
    tenant_id: int = Field(default=None, foreign_key="Tenant.id")
    tenant: Tenant = Relationship(back_populates="users")
    projects: List["Project"] = Relationship(back_populates="users", link_model=ProjectUserLink)


class Project(SQLModel, table=True):
    __tablename__ = 'Project'
    id: Optional[int] = Field(default=None, primary_key=True)
    name: str = Field(index=True)
    requirement: str
    owner_id: int = Field(default=None, foreign_key="Tenant.id")
    owner: Tenant = Relationship(back_populates="projects")
    start_time: datetime = Field(default=datetime.utcnow)
    deadline: datetime
    users: List["User"] = Relationship(back_populates="projects", link_model=ProjectUserLink)