<template>
  <goods-sku-popup :modelValue="modelValue" @input="onChangeValue" border-radius="20" :localdata="goodsInfo" :mode="skuMode" :maskCloseAble="true"
    :priceColor="appTheme.mainBg" :buyNowBackgroundColor="appTheme.mainBg" :addCartColor="appTheme.viceText"
    :addCartBackgroundColor="appTheme.viceBg"
    :activedStyle="{ color: appTheme.mainBg, borderColor: appTheme.mainBg, backgroundColor: activedBtnBackgroundColor }"
    @open="openSkuPopup" @close="closeSkuPopup" @add-cart="addCart" @buy-now="buyNow" buyNowText="立即购买" :maxBuyNum="maxBuyNum" />
</template>

<script>
  import { setCartTotalNum } from '@/core/app'
  import { hex2rgba } from '@/utils/color'
  import * as CartApi from '@/api/cart'
  import GoodsSkuPopup from '@/components/goods-sku-popup'

  export default {
    components: {
      GoodsSkuPopup
    },
    emits: ['update:modelValue'],
    props: {
      // 控制组件显示隐藏
      modelValue: {
        Type: Boolean,
        default: false
      },
      // 模式 1:都显示 2:只显示购物车 3:只显示立即购买
      skuMode: {
        type: Number,
        default: 1
      },
      // 商品详情信息
      goods: {
        type: Object,
        default: {}
      }
    },
    data() {
      return {
        // 商品信息
        goodsInfo: {},
        // 限购数量
        maxBuyNum: null
      }
    },
    computed: {
      // 规格按钮选中时的背景色
      activedBtnBackgroundColor() {
        return hex2rgba(this.appTheme.mainBg, 0.1)
      }
    },
    created() {
      const app = this
      const { goods } = app
      app.goodsInfo = {
        _id: goods.goods_id,
        name: goods.goods_name,
        goods_thumb: goods.goods_image,
        sku_list: app.getSkuList(),
        spec_list: app.getSpecList()
      }
      app.maxBuyNum = app.getMaxBuyNum()
    },

    methods: {

      // 监听组件显示隐藏
      onChangeValue(val) {
        this.$emit('update:modelValue', val)
      },

      // 整理商品SKU列表
      getSkuList() {
        const app = this
        const { goods: { goods_name, goods_image, skuList } } = app
        const skuData = []
		if(skuList && skuList.length > 0){
			skuList.forEach(item => {
			  skuData.push({
			    _id: item.id,
			    goods_sku_id: item.goods_sku_id,
			    goods_id: item.goods_id,
			    goods_name: goods_name,
			    image: item.image_url ? item.image_url : goods_image,
			    price: item.goods_price * 100,
			    stock: item.stock_num,
			    spec_value_ids: item.spec_value_ids,
			    sku_name_arr: app.getSkuNameArr(item.spec_value_ids)
			  })
			})
		}
        
        return skuData
      },

      // 获取sku记录的规格值列表
      getSkuNameArr(specValueIds) {
        const app = this
        const defaultData = ['默认']
        const skuNameArr = []
        if (specValueIds) {
          specValueIds.forEach((valueId, groupIndex) => {
            const specValueName = app.getSpecValueName(valueId, groupIndex)
            skuNameArr.push(specValueName)
          })
        }
        return skuNameArr.length ? skuNameArr : defaultData
      },

      // 获取指定的规格值名称
      getSpecValueName(valueId, groupIndex) {
        const app = this
        const { goods: { specList } } = app
        const res = specList[groupIndex].valueList.find(specValue => {
          return specValue.spec_value_id == valueId
        })
        return res.spec_value
      },

      // 整理规格数据
      getSpecList() {
        const { goods: { specList } } = this
        const defaultData = [{ name: '默认', list: [{ name: '默认' }] }]
        const specData = []
        if(specList && specList.length > 0){
			specList.forEach(group => {
			  const children = []
			  group.valueList.forEach(specValue => {
			    children.push({ name: specValue.spec_value })
			  })
			  specData.push({
			    name: group.spec_name,
			    list: children
			  })
			})
		}
        return specData.length ? specData : defaultData
      },

      // 限购数量
      getMaxBuyNum() {
        const { goods } = this
        return goods.is_restrict ? goods.restrict_single : null
      },

      // sku组件 开始-----------------------------------------------------------
      openSkuPopup() {
        // console.log("监听 - 打开sku组件")
      },

      closeSkuPopup() {
        // console.log("监听 - 关闭sku组件")
      },

      // 加入购物车按钮
      addCart(selectShop) {
        const app = this
        const { goods_id, goods_sku_id, buy_num } = selectShop
        CartApi.add(goods_id, goods_sku_id, buy_num)
          .then(result => {
            // 显示成功
            app.$toast(result.message)
            // 隐藏当前弹窗
            app.onChangeValue(false)
            // 购物车商品总数量
            const cartTotal = result.data.cartTotal
            // 缓存购物车数量
            setCartTotalNum(cartTotal)
            // 传递给父级
            app.$emit('addCart', cartTotal)
          })
      },

      // 立即购买
      buyNow(selectShop) {
        // 跳转到订单结算页
        this.$navTo('pages/sureOrder/index', {
          mode: 'buyNow',
          goodsId: selectShop.goods_id,
          goodsSkuId: selectShop.goods_sku_id,
          goodsNum: selectShop.buy_num
        })
        // 隐藏当前弹窗
        this.onChangeValue(false)
      }

    }
  }
</script>

<style lang="scss" scoped>

</style>