from django.db import models
from django.contrib.auth.models import AbstractUser


class RoleChoices(models.TextChoices):
    SUPER = "super", "超级管理员"
    ADMIN = "admin", "管理员"
    NORMAL = "normal", "普通"


class User(AbstractUser):
    first_name = None
    last_name = None

    role = models.CharField(
        max_length=20,
        choices=RoleChoices.choices,
        default=RoleChoices.NORMAL,
        verbose_name="权限",
    )
    raw_password = models.CharField(
        max_length=20,
        null=True,
        blank=True,
        verbose_name="明文密码",
    )
    classname = models.CharField(
        max_length=50,
        blank=True,
        default="",
        verbose_name="班级",
    )

    def save(self, *args, **kwargs):
        if self.username:
            if self.is_superuser:
                self.role = RoleChoices.SUPER
            super().save(*args, **kwargs)

    def set_password(self, raw_password):
        super().set_password(raw_password)
        self.raw_password = raw_password
        self.save()

    class Meta:
        ordering = ("-id",)
        verbose_name = "用户"
        verbose_name_plural = verbose_name