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


class User(AbstractUser):
    """Extended user model — Phase 3: quota in seconds."""
    email = models.EmailField(unique=True, verbose_name='邮箱')
    daily_seconds_limit = models.IntegerField(default=600, verbose_name='每日秒数上限')
    monthly_seconds_limit = models.IntegerField(default=6000, verbose_name='每月秒数上限')
    created_at = models.DateTimeField(auto_now_add=True, verbose_name='创建时间')
    updated_at = models.DateTimeField(auto_now=True, verbose_name='更新时间')

    class Meta:
        verbose_name = '用户'
        verbose_name_plural = '用户'

    def __str__(self):
        return self.username