from django.db import models
from django.contrib.auth.models import AbstractUser
from django.contrib.auth.models import Group as BuiltinGroup

class User(AbstractUser):
    groups = models.ManyToManyField(
        'auth.Group',
        related_name='user_groups',
        blank=True,
    )
    user_permissions = models.ManyToManyField(
        'auth.Permission',
        related_name='user_permissions',
        blank=True,
    )

class Group(BuiltinGroup):
    class Meta:
        proxy = True

class Berichtsheft(models.Model):
    id = models.AutoField(primary_key=True)
    user = models.TextField()
    year = models.PositiveIntegerField()
    week = models.PositiveSmallIntegerField()
    content = models.JSONField()
    created = models.DateTimeField(auto_now_add=True)

    def __str__(self):
        return f"Berichtsheft: {self.user.username}, Year: {self.year}, Week: {self.week}"

class Approval:
    id = models.AutoField(primary_key=True)
    user = models.TextField()
    report = models.ForeignKey(Berichtsheft, on_delete=models.CASCADE, related_name="report")