from django.contrib.auth.models import User, Group
from django.db.models import Model
from mptt.fields import TreeForeignKey
from mptt.models import MPTTModel
from django.db import models


class Menu(MPTTModel):
    name = models.CharField(max_length=100)
    config = models.TextField()
    create_at = models.DateTimeField(auto_now_add=True)
    create_by = models.ForeignKey(User, blank=True, null=True, on_delete=models.CASCADE)
    parent = TreeForeignKey('self', blank=True, null=True, on_delete=models.CASCADE)
    code = models.CharField(max_length=100)

    class Meta:
        app_label = 'basic'
        db_table = 'basic_menu'
        verbose_name = '报表菜单'
        verbose_name_plural = '报表菜单列表'


class RouterMenu(MPTTModel):
    """
    前端路由备份，用作中间表做权限
    """
    name = models.CharField(max_length=50)
    path = models.CharField(max_length=50)
    title = models.CharField(max_length=50, null=True)
    url = models.CharField(max_length=50)
    parent = TreeForeignKey('self', blank=True, null=True, on_delete=models.CASCADE)

    class Meta:
        verbose_name = '前端菜单'
        verbose_name_plural = '前端菜单列表'


class GroupRouterMenu(Model):
    """
    前端菜单的权限与角色绑定
    """
    group = models.ForeignKey(Group, blank=True, null=True, on_delete=models.CASCADE)
    menu = models.ForeignKey(RouterMenu, blank=True, null=True, on_delete=models.CASCADE)

    class Meta:
        verbose_name = '前端菜单与角色的中间表'
        verbose_name_plural = '前端菜单和角色的中间表列表'