<template>
    <view class="container">

      <!-- 基础信息 -->

      <view class="basic_info">

        <!-- 轮播图 -->
        <swiper
          class="swiperImage"
          :indicator-dots="true"
          :autoplay="true"
          :interval="4000"
          :duration="500"
        >
          <swiper-item

            v-for="(item, index) in carousel"

            :key="index"
          >
            <image
              :src="item"
              mode="scaleToFill"
            ></image>
          </swiper-item>
        </swiper>
        <!-- 产品价格及购买人数 -->
        <view class="info_pay">

          <view>￥{{goodsInfo.price || '暂无'}}<span
              v-if="goodsInfo.discountPrice"
              class="info_pay_discount"
            >¥{{goodsInfo.discountPrice}}</span></view>
          <span class="info_pay_number">{{goodsInfo.tradeNumber || '暂无'}}人购买过</span>

        </view>
        <!-- 产品名称 -->
        <view class="info_name">

          <text class="info_name_name">{{goodsInfo.name || '暂无'}}</text>

          <view
            @tap="confirmShare"
            class="info_name_share"
          >

            <image src="/static/img/detail/share-icon.png"></image>
            <text>分享</text>
          </view>

        </view>
        <!-- 产品售后信息 -->
        <view class="info_after">
          <span>支持7天无理由退货</span>
          <span>顺丰发货</span>
          <span>30天质量保证</span>
        </view>
      </view>

      <!-- 详细信息 -->

      <view class="detail_info">
        <!-- 详细信息菜单 -->
        <view class="screen_bar">
          <view

            v-for="(item, index) in screenItems"
            :key="index"
            @click="tabChange(index)"

          >
            <view
              class="screen_item"

              v-bind:class="{ item_active: item_current === index }"
            >{{ screenItems[index] || '暂无' }}</view>
          </view>
        </view>
        <!-- 商品介绍 -->
        <view
          class="screen_item"
          v-if="item_current === 0"
        >
          <Introduce :tag="tag" />
        </view>
        <!-- 规格参数 -->
        <view
          class="screen_item"
          v-if="item_current === 1"
        >
          <view class="specification">
            <view
              class="spe_item"
              v-for="(item, index) in specification"
              :key="index"
            >
              <image
                class="spe_image"
                v-bind:src="item.img"
              ></image>
              <span>{{item.standard || '暂无'}}</span>
              <span>{{item.slength || '暂无'}}</span>
            </view>

          </view>
        </view>
        <!-- 售后保障 -->
        <view
          class="screen_item"
          v-if="item_current === 2"
        >
          <AfterSails />
        </view>
      </view>

      <!-- 评价 -->
      <template v-if="item_current !== 2">
        <view class="evaluate">
          <!-- 标题 -->
          <view class="evaluate_title">
            <view><span>宝贝好评率</span><span class="title_rate">{{evaluate.rate}}</span></view>
            <!-- 星星 -->
            <view class="evaluate_star">
              <view
                class="star"
                v-for="(item, index) in evaluate.star"
                :key="index"
              >
                <image
                  src="../../static/img/detail/d_star.png"
                  mode="aspectFill"
                  style="height: 26rpx; width: 28rpx;"
                ></image>
              </view>
            </view>
          </view>
          <!-- 标签 -->
          <view class="evaluate_tag">
            <view
              v-for="(item, index) in evaluate.tag"
              :key="index"
            >{{item.name}}</view>
          </view>
        </view>
      </template>
      <!-- 商品详情页 -->
      <template v-if="current !==2">
        <view class="more_info">
          <view
            class="more_fixed1"
            @click="consolg(goodInfo.prodIntro1)"
          >
            <image src="/static/img/detail/hr.png"></image>
            <view>商品详情</view>
            <image src="/static/img/detail/hr.png"></image>
          </view>
          <view
            class="more_all"
            v-html="more"
          >
          </view>
        </view>
      </template>
      <!-- 底部菜单 -->
      <view class="menu">
        <view
          @tap="toCart()"
          class="menu_1"
        >
          <view class="cart_icon">
            <image src="/static/tab-cart.png" />
            <text>{{cartNumber}}</text>
          </view>
          <view class="menu_image">购物车</view>
        </view>
        <view class="menu_2">
          <view
            class="menu_input"
            @tap="showBottom(1)"
          >加入购物车</view>
          <view
            class="menu_now"
            @click="showBottom(2)"
          >立即购买</view>
        </view>
      </view>

      <!-- 参数选择 -->

      <template v-if="isShowBottom">
        <BottomSheet
          :isCart="isCart"
          @addCart="addCart"
          :pid="pid"
          :goodInfo="goodInfo"
          :isShowBottom="isShowBottom"
          @closeBottom="closeBottom"
        ></BottomSheet>
      </template>

      <!-- 分享 -->
      <template>
        <uni-popup
          ref="popupShare"
          type="share"
        >
          <uni-popup-share @select="selectShare"></uni-popup-share>
        </uni-popup>
      </template>
      <!-- 分享海报 -->
      <template>
        <uni-popup
          ref="uniPopupPost"
          type="center"
        >
          <uni-popup-post :postUrl="postUrl"></uni-popup-post>
        </uni-popup>
      </template>

    </view>
  </template>
  
  <script>
  import store from '@/store'

  import Introduce from './components/Introduce' // 商品介绍基本信息组件

  import AfterSails from './components/AfterSails' // 售后保障组件

  import uniPopupShare from '@/components/uni-popup/uni-popup-share.vue' // 分享组件
  import uniPopupPost from '@/components/uni-popup/uni-popup-post.vue' // 分享组件

  import BottomSheet from '@/components/BottomSheet/BottomSheet.vue' // 参数选择组件

  
  export default {

    components: {

      Introduce,

      AfterSails,

      BottomSheet,

      uniPopupShare,
      uniPopupPost,

    },

    data () {
      return {
        pid: 7, // 产品ID

        skId: undefined, // skuId
        // 详细信息菜单
        item_current: 0,
        screenItems: [

          '商品介绍',
          '规格参数',
          '售后保障',

        ],

        showPostImg: false, // 是否展示分享海报

        isShowBottom: false, // 是否展示参数选择
        isCart: 1, // 参数选择 按钮判断

      }
    },
    onLoad({ pid = this.pid, sk_id: skId }) {

      // 根据页面传参请求页面数据

      this.pid = pid

      this.skId = skId

  
      // 获取产品详情
      this.getDetails({ pid, skId })

      // 获取购物车数据
      this.getCartNum()

    },
    computed: {

      // 获取轮播图数据

      goodInfo() {
        return this.$store.state.details.goodInfo
      },
      // 获取轮播图数据

      carousel() {
        return this.$store.state.details.carousel
      },
      // 商品基本信息
      goodsInfo() {
        return this.$store.state.details.goodsInfo
      },

      // 商品介绍商品标签
      tag() {
        return this.$store.state.details.tag
      },
      // 规格参数
      specification() {
        return this.$store.state.details.specification
      },
      // 评价
      evaluate() {
        return this.$store.state.details.evaluate
      },
      // 商品详情
      more() {
        return this.$store.state.details.more
      },
      // 购物车数目
      cartNumber() {
        return this.$store.state.details.cartNumber
      },

      // 购物车数目
      skuList() {
        return this.$store.state.details.skuList
      },
      // 分享海报
      postUrl() {
        return this.$store.state.details.postUrl
      },

    },
    methods: {
      // 获取产品详情
      getDetails({ pid, skId }) {

        store.dispatch('details/details', {

          pid,
          sk_id: skId,

        })

        store.dispatch('read/fetch', {
          pid,
          sk_id: skId,
        })

      },

      // 获取购物车数目
      getCartNum() {
        store.dispatch('details/getCartNumber')
      },

      // 切换详细信息菜单
      tabChange (e) {
        if (this.current !== e) {
          this.item_current = e
        }

      },

      // 打开分享界面
      confirmShare() {
        this.$refs.popupShare.open()
      },
      // 选择分享
      selectShare(e, done) {
        switch (e.item.name) {
          // 分享到好物圈
          case 'recommend':
            this.shareRecommend()
            break
          // 分享到朋友圈
          case 'friend':
            break
          // 生成海报
          case 'poster':
            uni.showLoading({
              title: '生成图片中',
            })
            this.sharePost()
            break
          default:
            break
        }
        done()
      },
      // 分享到好物圈
      shareRecommend() {
        if (wx.openBusinessView) {
          wx.openBusinessView({
            businessType: 'friendGoodsRecommend',
            extraData: {
              product: {
                item_code: '58_68',
                title: this.goodsInfo.name,
                image_list: this.carousel,
              },
            },
            success: function (res) {
              uni.showToast({
                title: '好物圈分享成功！',
                icon: 'none',
                duration: 2000,
              })
              // 向服务器报告这个事情
              // TODO:::记录这个用户的推广过程。
              console.log('好物圈分享成功！', res)
            },
            fail: function (res) {
              console.log('好物圈分享失败！', res)
            },
          })
        }
      },
      // 分享到朋友/圈
      shareFriend() {
        this.onShareAppMessage()
      },
      // 朋友圈设置页面
      onShareAppMessage() {
        let myName = this.$store.state.user.userInfo.nickName
        if (myName === '' || myName.length < 1 || myName === '匿名用户' || typeof myName === 'undefined') {
          myName = '【神秘人】'
        } else {
          myName = '【' + myName + '】'
        }
        const uid = uni.getStorageSync('uid')
        return {
          title: 'Hi，' + myName + '送你300元来试戴最新潮流眼镜！', // 默认是小程序的名称(可以写slogan等)
          path: '/pages/index/detail/index?uid=' + uid + '&sid=0&pid=' + this.pid,
          imageUrl: this.skuList[0].pic, // 不传入 imageUrl 则使用默认截图。显示图片长宽比是 5:4
          success: function (res) {
            if (res.errMsg === 'shareAppMessage:ok') {
              console.log('分享成功！', res)
            }
          },
          fail: function (res) {
            if (res.errMsg === 'shareAppMessage:fail cancel') {
              console.log('fail', '放弃分享')
            } else if (res.errMsg === 'shareAppMessage:fail') {
              console.log('fail', '分享失败')
            }
          },
        }
      },
      // 生成海报
      sharePost() {
        const fromsid = this.$store.state.user.fromInfo.fromsid || 'undefined'
  
        store.dispatch('details/post', {
          pid: this.pid,
          sid: fromsid === 'undefined' ? 0 : fromsid,
        }).then((data) => {
          uni.hideLoading()
          this.$refs.uniPopupPost.open()
        })
      },

      // 参数选择弹窗开关
      showBottom(isCart) {
        this.isCart = isCart
        this.isShowBottom = true
      },
      closeBottom() {
        this.isShowBottom = false
      },
      // 前往购物车
      toCart() {
        uni.switchTab({
          url: '/pages/cart/cart',
          success: res => {},
          fail: (error) => { console.log('跳转购物车失败======>', error) },
          complete: () => { console.log('toCart') },
        })
      },
      // 加入购物车
      addCart (mpId, num, checkedSKU, skId) {
        this.addCartList.mp_id = mpId
        this.addCartList.sk_id = skId
        this.addCartList.num = num
        this.addCartList.checkedSKU = checkedSKU
        console.log('添加购物车的参数', this.addCartList)
        store.dispatch('cart/addCart', this.addCartList).then((res) => {
          if (res.code === 1) {
            uni.showToast({
              title: '添加成功~',
              icon: 'success',
            })
          }
          // 再次请求购物车接口，实现实时更新
          store.dispatch('cart/getCartList', {
            uid: this.$store.state.user.userInfo.uid,
          })
        })
      },

    },
  }
  </script>
  
  <style lang="scss">
  .container {
    background-color: #f8f8f8;
    font-family: "PingFangSC-Regular";
    // 板块样式
    > view {
      background: #ffffff;
      margin-bottom: 10px;
      padding: 8px 20px 8px 20px;
      box-sizing: border-box;
    }

    // 基础信息板块
    .basic_info {

      // 轮播图
      .swiperImage {
        width: 684rpx;
        height: 480rpx;
        image {
          max-width: 100%;
          max-height: 100%;
          border-radius: 16rpx;
        }
      }
      // 产品价格及购买人数
      .info_pay {
        color: #eb5d3b;
        font-size: 18px;
        margin-top: 5px;
        font-family: "PingFangSC-Semibold";
        display: flex;
        justify-content: space-between;

        .info_pay_discount {
          text-decoration: line-through;
          margin-left: 8rpx;
          color: #999;
          font-size: 14px;
        }

        .info_pay_number {
          color: #999;
          font-size: 14px;

          font-family: PingFangSC-Regular;

        }
      }
      // 产品名称
      .info_name {

        margin-top: 5px;

        display: flex;
        justify-content: space-between;
        .info_name_name {

          margin-right: 10px;

          font-size: 16px;
          font-family: "PingFangSC-Semibold";
          max-width: 592rpx;
        }
        .info_name_share {
          display: flex;
          flex-direction: column;
          justify-content: space-between;
          align-items: center;
          margin-top: 14rpx;
          > image {
            height: 40rpx;
            width: 40rpx;
          }
          > text {
            font-family: PingFangSC-Regular;
            font-size: 12px;
            color: #999;
            letter-spacing: -0.23px;
          }

        }
      }
      // 售后服务
      .info_after {
        font-size: 10px;
        color: #999;

        margin-top: 20rpx;

        > span {
          height: 14px;
          margin-right: 10px;
        }
      }
    }

    // 详细信息
    .detail_info {

      margin-bottom: 20rpx;

      .screen_bar {
        width: 670rpx;
        margin-top: 20rpx;
        margin-bottom: 24rpx;
        display: flex;
        flex-direction: row;
        justify-content: space-between;
        align-items: center;
        font-size: 14px;
        color: #333333;
        transition: all 0.2s;
      }
      .item_active {
        border-bottom: 4rpx solid #ff6b4a;
      }
      .screen_item {
        font-size: 32rpx;
        color: #333333;
        display: flex;
        transition: all 0.2s;

        // 规格参数
        .specification {
          margin-bottom: 4px;
          .spe_item {
            image {
              width: 50px;
              height: 25px;
              margin-right: 6px;
              vertical-align: middle;
            }
            span {
              margin-left: 24rpx;
            }
          }
        }
      }
      //
    }
    // 宝贝好评率
    .evaluate {
      .evaluate_title {
        font-size: 14px;
        color: #333333;
        display: flex;
        justify-content: space-between;
        .title_rate {
          margin-left: 10rpx;
        }
        .evaluate_star {
          width: 90px;
          display: flex;
          align-items: center;
          justify-content: space-between;
        }
        view {
          font-size: 14px;
          color: #333333;
          font-weight: bold;
        }
      }
      .evaluate_tag {
        view {
          display: inline-block;
          margin-right: 20rpx;
          min-width: 180rpx;
          margin-top: 10px;
          height: 48rpx;
          background: #f2f2f2;
          border-radius: 2px;
          font-family: PingFangSC-Regular;
          font-size: 12px;
          color: #666666;
          letter-spacing: -0.23px;
          text-align: center;
          padding: 0 48rpx;
          line-height: 48rpx;
        }
      }
    }
    // 商品详情
    .more_info {
      .more_fixed1 {
        display: flex;
        justify-content: space-between;
        align-content: center;
        margin-bottom: 12px;
        view {
          font-size: 14px;
          color: #333333;
          font-weight: bold;
          font-family: "PingFangSC-Medium";
          line-height: 24px;
        }
        image {
          width: 240rpx;
          height: 3px;
          margin-top: 10px;
        }
      }
      .more_all {
        width: 100%;
        margin-top: 30rpx;
        margin-right: 30rpx;
        margin-bottom: 180rpx;
        font-family: "PingFangSC-Regular";
      }
    }
    // 菜单
    .menu {
      position: fixed;
      bottom: 0;
      height: 74px;
      width: 100%;
      background: #ffffff;
      padding: 20px 20px 8px 20px;
      font-family: "PingFangSC-Regular";
      box-sizing: border-box;
      display: flex;
      justify-content: space-between;
      align-content: center;
      margin: 0;

      /* iphonex 等安全区设置，底部安全区适配 */
      /* #ifndef APP-NVUE */
      padding-bottom: constant(safe-area-inset-bottom);
      padding-bottom: env(safe-area-inset-bottom);

      .menu_1 {
        width: 20%;
        height: 100%;
        text-align: center;
        color: #989898;
        .cart_icon {
          position: relative;
          text {
            position: absolute;
            color: white;
            font-size: 17px;
            background-color: red;
            min-height: 24px;
            min-width: 24px;
            line-height: 24px;
            right: -12%;
            top: -12px;
            text-align: center;
            border-radius: 24px;
            padding: 2px;
          }
        }
      }
      image {
        width: 42%;
        height: 26px;
      }
      .menu_image {
        font-size: 12px;
        text-align: center;
      }
      .menu_2 {
        width: 74%;
        height: 86%;
        display: grid;
        grid-template-columns: 50% 50%;
      }
      .menu_input {
        display: inline-flex;
        align-items: center;
        justify-content: space-around;
        background: #fff0ec;
        font-size: 16px;
        color: #ff6b4a;
        border-radius: 20px 0 0 20px;
      }
      .menu_now {
        display: inline-flex;
        align-items: center;
        justify-content: space-around;
        background: #ff6b4a;
        font-size: 16px;
        color: #ffffff;
        border-radius: 0 20px 20px 0;

      }
    }

  }
  </style>