<template>
  <view>
    <uni-popup ref="popupRef" type="bottom" @change="changeShow">
      <view class="pop">
        <scroll-view scroll-y class="scroll">
            <view class="image">
              <swiper class="swiper" :current="current" autoplay style="width: 100%;height: 100%;" @change="changeCurrent">
                <block v-if="product.slider_image && product.slider_image.length>0">
                  <swiper-item v-for="(item,index) in product.slider_image" :key="index">
                    <image class="img" :src="item"></image>
                  </swiper-item>
                </block>
                <swiper-item v-else>
                  <image class="img" :src="datas.image||defualtImg"></image>
                </swiper-item>
              </swiper>
              <view class="current">{{current+1}}/{{product.slider_image && product.slider_image.length||1}}</view>
              <image class="close" src="@/static/images/icon/close.png" @click="close()"></image>
              <view class="border"></view>
            </view>
            <view class="white_card">
              <view class="flex flex_end">
                <block v-if="datas.limited_price">
                  <view class="price">￥<text class="pro">{{leftPrice2}}.</text>{{rightPrice2}}
                  </view>
                  <view class="price" style="text-decoration: line-through;color: #999;font-weight: 400;font-size: 28rpx;">原价: ￥<text>{{leftPrice}}.</text>{{rightPrice}}</view>
                </block>
                <view v-else class="price">￥<text>{{leftPrice}}.</text>{{rightPrice}}</view>
                <!-- <view>订货价</view> -->
              </view>
              <view class="short_name">{{datas.store_name}}</view>
              <view class="flex">
                <view class="shop_name">
                  <image class="icon" src="@/static/images/icon/short.png"></image>
                  <view>{{datas.merchant.mer_name}}</view>
                </view>
              </view>
              <u-line></u-line>
              <block name="规格选中" v-for="(att, indexw) in attr" :key="indexw">
                <view class="m_title">{{att.attr_name}}</view>
                <view class="flex" style="flex-wrap: wrap;">
                  <view class="attr" :class="{'attr_active': item.check}" 
                    v-for="(item, indexn) in att.attr_value" :key="indexn"
                    @click="changeAttr(indexw, indexn)">
                    {{item.attr}}
                  </view>
                </view>
              </block>
              <view class="m_title num">
                <view>购买数量</view>
                <view class="input">
                  <view class="input_item sub" @click="subCartNum">-</view>
                  <input class="input_item input_view" v-model="cart_num" type="number" @input="inputCartNum" />
                  <view class="input_item plus" @click="plusCartNum">+</view>
                </view>
              </view>
              <view>
                商品库存 <text style="margin-left: 20rpx;">{{(sku[changeSkuKey] && sku[changeSkuKey].stock)||change.stock}}</text>
              </view>
            </view>
        </scroll-view>
        <view class="button">
          <!-- <view class="b_icon" @click="navgoCart()">
            <image src="@/static/images/icon/car.png"></image>
            <view>购物车</view>
            <view class="badge" v-if="goodsNum">{{goodsNum}}</view>
          </view> -->
          <view class="btn" @click.stop="$u.throttle(addcart, 1500)"> {{isBuy?'立即购买':'加入购物车'}} </view>
        </view>
      </view>
    </uni-popup>
  </view>
</template>

<script>
  import {
    postCartAdd,
    getProductDetail
  } from '@/api/store.js';
import { Toast } from '../libs/uniApi';
import { data } from '../uni_modules/uview-ui/libs/mixin/mixin';
  export default {
    name: "shortPopup",
    props: {
      source:{
        type: Number,
        default: null
      },
      isBuy: {
        type: Boolean,
        default: false
      }
    },
    data() {
      return {
        isShow: false, //当前是否打开弹窗
        defualtImg: 'https://lihai001.oss-cn-chengdu.aliyuncs.com/uploads/20230130/00ebcfdf75684f5494c0193075055d1.png',
        datas: {
          image: '',
          store_name: '',
          merchant: {
            mer_name: ''
          },
          price: '',
        },
        product: {},
        attrValue: [],
        attr: [], //多级规格
        changeSkuKey: '', //多级规格选中的key
        sku: {}, //规格
        sku_key_list: [], //规格名称列表
        changeSkuKey: '', //选中的规格名称
        change: {
          stock: ''
        },
        cart_num: 1, //购买数量
        goodsNum: 0, //购物车数量
        current: 0, //轮播图当前滑块
      };
    },
    mounted() {},
    computed:{
      leftPrice(){
        return this.sku[this.changeSkuKey]?.price?.split('.')[0]||'0';
      },
      rightPrice(){
        return this.sku[this.changeSkuKey]?.price?.split('.')[1]||'00';
      },
      leftPrice2(){
        return this.datas.limited_price.split('.')[0]||'0';
      },
      rightPrice2(){
        return this.datas.limited_price.split('.')[1]||'00';
      }
    },
    methods: {
      // 注入参数,
      setDatas(datas, goodsNum) {
        getProductDetail(datas.product_id).then((res)=>{
          this.attr = res.data.attr;
          if(this.attr.length>0) this.attr.forEach((item, index)=>{
            this.changeAttr(index, 0);
          })
          else this.changeSkuKey = '';
        })
        this.goodsNum = goodsNum;
        this.datas = datas;
        this.product = datas.product;
        this.attrValue = datas.product?.attrValue;
        this.change = this.attrValue[0];
        this.cart_num = 1;
        this.sku = datas.sku||{};
        this.sku_key_list = Object.keys(this.sku);
      },
      // 输入购买数量
      inputCartNum(e) {
        if(this.sku){
          if (+e.detail.value > this.sku[this.changeSkuKey].stock) {
            uni.showToast({
              icon: 'none',
              title: '不能超出库存哦'
            })
            this.$nextTick(() => {
              this.cart_num = this.sku[this.changeSkuKey].stock;
            })
          }
        }else if (this.change.stock <= this.cart_num) {
            uni.showToast({
              icon: 'none',
              title: '不能超出库存哦'
            })
            this.$nextTick(() => {
              this.cart_num = this.change.stock;
            })
          }
      },
      // 减少购买数量
      subCartNum() {
        if (this.cart_num <= 1) {
          return uni.showToast({
            icon: 'none',
            title: '最少要买一件哦'
          })
        }
        this.cart_num--;
      },
      // 增加购买数量
      plusCartNum() {
        return Toast('最多购买一件哦');
        if(this.sku){
          if (this.sku[this.changeSkuKey].stock <= this.cart_num) {
            return uni.showToast({
              icon: 'none',
              title: '不能超出库存哦'
            })
          }
        }else if (this.change.stock <= this.cart_num) {
            return uni.showToast({
              icon: 'none',
              title: '不能超出库存哦'
            })
          }
        this.cart_num++;
      },
      changeAttr: function(indexw, indexn) {
      	let that = this;
      	this.$set(this.attr[indexw], 'index', this.attr[indexw].attr_values[indexn]);
        this.attr[indexw].attr_value.forEach((item, index)=>{
          if(index==indexn)item.check = true;
          else item.check = false;
        })
      	let value = that.getCheckedValue().join(",");
        this.changeSkuKey = value;
      },
      //获取被选中属性；
      getCheckedValue: function() {
      	let productAttr = this.attr;
      	let value = [];
      	for (let i = 0; i < productAttr.length; i++) {
      		for (let j = 0; j < productAttr[i].attr_values.length; j++) {
      			if (productAttr[i].index === productAttr[i].attr_values[j]) {
      				value.push(productAttr[i].attr_values[j]);
      			}
      		}
      	}
      	return value;
      },
      // 加入购物车
      addcart() {
        if (this.sku[this.changeSkuKey]) {
          if (this.cart_num > this.sku[this.changeSkuKey].stock) return uni.showToast({
            icon: 'none',
            title: '不能超出库存哦'
          })
          let data = {
            cart_num: this.cart_num,
            is_new: 0,
            product_attr_unique: this.sku[this.changeSkuKey].unique,
            product_id: this.datas.product_id,
            product_type: this.datas.product_type,
            source: this.source, 
            spread_id: "",
          }
          let that = this
          let res = postCartAdd({
            ...data
          }).then((res, err) => {
            if(this.isBuy) return uni.navigateTo({
            	url: `/pages/users/order_confirm/index?cartId=${res.data.cart_id}&type_id=${this.datas.merchant.type_id}&source=${this.source}`
            });
            uni.showToast({
              title: "加入成功",
              duration: 1000,
            })
            this.$emit('addCart');
            this.close();
            if(this.isBuy){
              this.navgoCart();
            }
          }).catch(err => {
            uni.showToast({
              title: err,
              icon: "none",
              duration: 1000,
            })
          })
        } else {
          uni.showToast({
            icon: 'none',
            title: '商品规格不存在'
          })
        }
      },
      // 滑动轮播图
      changeCurrent(e){
        this.current = e.detail.current;
      },
      navgoCart(url=null) {
        if(!url) {
          if(this.source) url = '/pages/order_addcart/order_addcart?source='+this.source;
          else url = '/pages/order_addcart/order_addcart';
        }
        uni.navigateTo({
          url
        })
      },
      open() {
        this.$refs.popupRef.open();
      },
      close() {
        this.$refs.popupRef.close();
      },
      changeShow(e) {
        this.isShow = e.show;
      }
    }
  }
</script>

<style lang="scss">
  .pop {
    background-color: #fff;
    border-radius: 31.54rpx 31.54rpx 0rpx 0rpx;
    overflow: hidden;
    position: relative;
    
    .scroll{
      height: calc(90vh - 150rpx);
    }

    .flex_end {
      align-items: flex-end;
    }
    

    .image {
      height: 750rpx;
      width: 750rpx;
      position: relative;
      
      .current{
        position: absolute;
        bottom: 70rpx;
        left: 30rpx;
        width: 67rpx;
        height: 37rpx;
        background: rgba(#333, 0.2);
        border-radius: 11rpx 11rpx 11rpx 11rpx;
        text-align: center;
        color: #fff;
        font-size: 26rpx;
        font-family: PingFang SC-Regular, PingFang SC;
        font-weight: 400;
      }

      .img {
        width: 100%;
        height: 100%;
        border-radius: 31.54rpx 31.54rpx 0rpx 0rpx;
        overflow: hidden;
      }

      .close {
        position: absolute;
        top: 30rpx;
        right: 30rpx;
        width: 50.82rpx;
        height: 50.82rpx;
      }

      .border {
        position: absolute;
        bottom: -1rpx;
        left: 0;
        background-color: #fff;
        height: 40rpx;
        width: 100%;
        border-radius: 40rpx 40rpx 0 0;
      }
    }

    .white_card {
      border-radius: 31.54rpx 31.54rpx 0rpx 0rpx;
      background-color: #fff;
      margin: 0 28rpx;
      padding-bottom: 30rpx;
      color: #737373;
      font-size: 26.29rpx;

      .price {
        font-size: 35rpx;
        font-family: SF Pro Display-Semibold, SF Pro Display;
        font-weight: 600;
        color: #F84221;
        padding-right: 30rpx;

        .pro {
          font-size: 49.07rpx;
        }
      }

      .short_name {
        font-size: 33rpx;
        font-family: PingFang SC-Semibold, PingFang SC;
        font-weight: 600;
        color: #333333;
      }

      .shop_name {
        display: flex;
        background: #FEF5F3;
        padding: 0 16rpx;
        border-radius: 26rpx 26rpx 26rpx 26rpx;
        margin-top: 30rpx;
        margin-bottom: 20rpx;
        align-items: center;

        .icon {
          width: 31.54rpx;
          height: 31.54rpx;
          margin-right: 10rpx;
        }
      }

      .m_title {
        font-size: 30rpx;
        font-family: PingFang SC-Medium, PingFang SC;
        font-weight: 500;
        color: #333333;
        margin-top: 31rpx;
        margin-bottom: 21rpx;
      }

      .attr {
        opacity: 1;
        border: 1rpx solid #F84221;
        color: #333333;
        padding: 15rpx 30rpx;
        margin-right: 20rpx;
        height: 63rpx;
        line-height: 60rpx;
        border-radius: 63rpx;
        display: flex;
        align-items: center;
        justify-content: center;
      }
      
      .attr_active{
        // background-color: #FEF5F3;
        // color: #F84221;
        background-color: #F84221;
        color: #fff;
      }

      .num {
        display: flex;
        justify-content: space-between;
        align-items: center;

        .input {
          display: flex;
          align-items: center;
          height: 48rpx;

          .input_item {
            width: 44rpx;
            height: 44rpx;
            text-align: center;
            line-height: 40rpx;
            border: 2rpx solid #fff;
            font-size: 26rpx;
            color: #333;
          }

          .input_view {
            width: 60rpx;
          }

          .sub {
            border: 2rpx solid #FCB9AD;
            border-radius: 7rpx 0rpx 0rpx 7rpx;
            background: #FFFFFF;
            font-size: 26rpx;
            color: #B3B3B3;
          }

          .plus {
            border: 2rpx solid #FCB9AD;
            border-radius: 0rpx 7rpx 7rpx 0rpx;
            background: #FFFFFF;
            font-size: 26rpx;
            color: #B3B3B3;
          }
        }
      }

    }

    .button {
      padding: 28rpx;
      margin-bottom: 28rpx;
      background-color: #fff;
      display: flex;
      justify-content: space-around;
      padding-bottom: constant(safe-area-inset-bottom); ///兼容 IOS<11.2/
      padding-bottom: env(safe-area-inset-bottom); ///兼容 IOS>11.2/
      padding-bottom: constant(safe-area-inset-bottom); ///兼容 IOS<11.2/
      padding-bottom: env(safe-area-inset-bottom); ///兼容 IOS>11.2/

      .b_icon {
        display: flex;
        flex-direction: column;
        align-items: center;
        font-size: 19rpx;
        font-weight: 400;
        color: #333333;
        position: relative;

        image {
          width: 50.82rpx;
          height: 50.82rpx;
        }

        .badge {
          position: absolute;
          top: -5rpx;
          right: -10rpx;
          color: #fff;
          min-width: 28rpx;
          height: 28rpx;
          text-align: center;
          line-height: 24rpx;
          background: #F84221;
          border-radius: 16rpx 16rpx 16rpx 16rpx;
          border: 2rpx solid #FFFFFF;
        }
      }

      .btn {
        width: 575rpx;
        height: 84rpx;
        background: linear-gradient(270deg, #FF6D20 0%, #F84221 100%);
        border-radius: 42rpx 42rpx 42rpx 42rpx;
        display: flex;
        justify-content: center;
        align-items: center;
        font-size: 30rpx;
        font-family: PingFang SC-Medium, PingFang SC;
        font-weight: 500;
        color: #FFFFFF;
      }
    }
  }
</style>