from django.contrib.auth.models import AbstractUser
from django.db import models
from django.urls import reverse
from django.utils.timezone import now
from django.utils.translation import gettext_lazy as _
from djangoblog.utils import get_current_site


# Create your models here.

class BlogUser(AbstractUser):
    #sjt 扩展Django内置用户模型，增加博客系统所需的用户属性
    nickname = models.CharField(_('nick name'), max_length=100, blank=True)  # sjt 用户昵称
    creation_time = models.DateTimeField(_('creation time'), default=now)  # sjt 账号创建时间
    last_modify_time = models.DateTimeField(_('last modify time'), default=now)  # sjt 信息最后修改时间
    source = models.CharField(_('create source'), max_length=100, blank=True)  # sjt 账号创建来源（如注册、后台添加）

    def get_absolute_url(self):
        #sjt 获取用户详情页的相对URL
        return reverse(
            'blog:author_detail', kwargs={
                'author_name': self.username})

    def __str__(self):
        #sjt 对象字符串表示，返回用户邮箱
        return self.email

    def get_full_url(self):
        #sjt 获取用户详情页的完整URL（包含域名）
        site = get_current_site().domain
        url = "https://{site}{path}".format(site=site,
                                            path=self.get_absolute_url())
        return url

    class Meta:
        ordering = ['-id']  # sjt 按ID倒序排列
        verbose_name = _('user')  # sjt 模型显示名称
        verbose_name_plural = verbose_name
        get_latest_by = 'id'  # sjt 最新记录按ID判断