from django.db import models
from common.base_model import BaseModel
from datetime import datetime

from ckeditor_uploader.fields import RichTextUploadingField


# Create your models here.
class GoodsCategory(BaseModel):
    """
    商品分类
    """
    id = models.AutoField(primary_key=True)
    name = models.CharField(verbose_name='分类名称', max_length=50, default='')
    parent = models.ForeignKey(verbose_name='父类', to="self", null=True, blank=True, on_delete=models.DO_NOTHING,
                               related_name='sub_cat')
    logo = models.ImageField(verbose_name='分类logo图片', upload_to='upload/cate_img')
    is_nav = models.BooleanField(verbose_name='是否显示在导航栏', default=False)
    sort = models.IntegerField(verbose_name='排序')

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = '商品分类'
        verbose_name_plural = '商品分类'
        db_table = 'd_goods_category'


class Goods(models.Model):
    """
    商品信息
    """
    STATUS = (
        (0, '正常'),
        (1, '下架')
    )
    name = models.CharField(verbose_name='商品名称', max_length=50, default='')
    category = models.ForeignKey(verbose_name='商品分类', to=GoodsCategory, on_delete=models.DO_NOTHING, blank=True,
                                 null=True)
    market_price = models.DecimalField(verbose_name='市场价', max_digits=8, decimal_places=2, default=0)
    price = models.DecimalField(verbose_name='实际价格', max_digits=8, decimal_places=2, default=0)
    unit = models.CharField(verbose_name='单位', max_length=10, blank=True, null=True)
    click_num = models.IntegerField(verbose_name='点击数', default=0)
    amount = models.IntegerField(verbose_name='销售量', default=0)
    stock_num = models.IntegerField(verbose_name='库存量', default=0)
    fav_num = models.IntegerField(verbose_name='收藏量', default=0)
    goods_desc = RichTextUploadingField(verbose_name='商品详情', default='')
    status = models.IntegerField(verbose_name='商品状态', default=0, choices=STATUS)
    main_img = models.ImageField(verbose_name='商品主图', upload_to='upload/goods_img', blank=True, null=True)
    is_recommend = models.BooleanField(verbose_name='是否推荐', default=False)
    user = models.ForeignKey(verbose_name='用户', to='', on_delete=models.DO_NOTHING, blank=True, null=True)
    create_datetime = models.DateTimeField(verbose_name='创建时间', default=datetime.now())

    def __str__(self):
        return self.name

    class Meta:
        verbose_name = '商品信息'
        verbose_name_plural = '商品信息'
        db_table = 'd_goods'


class Slide(BaseModel):
    """
    首页轮播图
    """
    goods = models.ForeignKey(verbose_name='商品', to=Goods, on_delete=models.DO_NOTHING)
    images = models.ImageField(verbose_name='轮播图片', upload_to='upload/slide_img')
    sort = models.IntegerField(verbose_name='排序', default=0)

    class Meta:
        verbose_name = '首页轮播'
        verbose_name_plural = '首页轮播'
        db_table = 'd_slide'