app/pages/goods/seckill.vue

<!-- 秒杀商品详情 -->
<template>
  <s-layout :onShareAppMessage="shareInfo" navbar="goods">
    <!-- 标题栏 -->
    <detailNavbar />
    <!-- 骨架屏 -->
    <detailSkeleton v-if="state.skeletonLoading" />
    <!-- 下架/售罄提醒 -->
    <s-empty v-else-if="state.goodsInfo === null || state.goodsInfo.activity_type !== 'seckill'" text="活动不存在或已结束"
             icon="/static/soldout-empty.png" showAction actionText="再逛逛" actionUrl="/pages/goods/list" />
    <block v-else>
      <view class="detail-swiper-selector">
        <!-- 商品图轮播 -->
        <su-swiper class="ss-m-b-14" isPreview :list="state.goodsSwiper" dotStyle="tag" imageMode="widthFix"
                   dotCur="bg-mask-40" :seizeHeight="750" />

        <!-- 价格+标题 -->
        <view class="title-card ss-m-y-14 ss-m-x-20 ss-p-x-20 ss-p-y-34">
          <view class="price-box ss-flex ss-row-between ss-m-b-18">
            <view class="ss-flex">
              <view class="price-text ss-m-r-16">
                {{ fen2yuan(state.selectedSku.price || state.goodsInfo.price) }}
              </view>
              <view class="tig ss-flex ss-col-center">
                <view class="tig-icon ss-flex ss-col-center ss-row-center">
                  <text class="cicon-alarm"></text>
                </view>
                <view class="tig-title">秒杀价</view>
              </view>
            </view>
            <view class="countdown-box" v-if="endTime.ms > 0">
              <view class="countdown-title ss-m-b-20">距结束仅剩</view>
              <view class="ss-flex countdown-time">
                <view class="ss-flex countdown-h">{{ endTime.h }}</view>
                <view class="ss-m-x-4">:</view>
                <view class="countdown-num ss-flex ss-row-center">{{ endTime.m }}</view>
                <view class="ss-m-x-4">:</view>
                <view class="countdown-num ss-flex ss-row-center">{{ endTime.s }}</view>
              </view>
            </view>
            <view class="countdown-title" v-else> 活动已结束 </view>
          </view>
          <view class="ss-flex ss-row-between ss-m-b-60">
            <view class="origin-price ss-flex ss-col-center" v-if="state.goodsInfo.marketPrice">
              原价
              <view class="origin-price-text">
                {{ fen2yuan(state.selectedSku.marketPrice || state.goodsInfo.marketPrice) }}
              </view>
            </view>
            <detail-progress :percent="state.percent" />
          </view>

          <view class="title-text ss-line-2 ss-m-b-6">{{ state.goodsInfo.name || '' }}</view>
          <view class="subtitle-text ss-line-1">{{ state.goodsInfo.introduction }}</view>
        </view>

        <!-- 功能卡片 -->
        <view class="detail-cell-card detail-card ss-flex-col">
          <detail-cell-sku :sku="state.selectedSku" @tap="state.showSelectSku = true" />
        </view>
        <!-- 规格与数量弹框 -->
        <s-select-seckill-sku v-model="state.goodsInfo" :show="state.showSelectSku"
                              :single-limit-count="activity.singleLimitCount" @buy="onBuy" @change="onSkuChange"
                              @close="state.showSelectSku = false" />
      </view>

      <!-- 评价 -->
      <detail-comment-card class="detail-comment-selector" :goodsId="state.goodsInfo.id" />
      <!-- 详情 -->
      <detail-content-card class="detail-content-selector" :content="state.goodsInfo.description" />

      <!-- 详情tabbar -->
      <detail-tabbar v-model="state.goodsInfo">
        <!-- TODO: 缺货中 已售罄 判断 设计-->
        <view class="buy-box ss-flex ss-col-center ss-p-r-20">
          <button class="ss-reset-button origin-price-btn ss-flex-col" v-if="state.goodsInfo.marketPrice"
                  @tap="sheep.$router.go('/pages/goods/index', { id: state.goodsInfo.id })">
            <view>
              <view class="btn-price">{{ fen2yuan(state.goodsInfo.marketPrice) }}</view>
              <view>原价购买</view>
            </view>
          </button>
          <button v-else class="ss-reset-button origin-price-btn ss-flex-col">
            <view class="no-original" :class="
                state.goodsInfo.stock === 0 || timeStatusEnum !== TimeStatusEnum.STARTED ? '' : ''
              ">
              秒杀价
            </view>
          </button>
          <button class="ss-reset-button btn-box ss-flex-col" @tap="state.showSelectSku = true" :class="
              timeStatusEnum === TimeStatusEnum.STARTED && state.goodsInfo.stock != 0
                ? 'check-btn-box'
                : 'disabled-btn-box'
            " :disabled="state.goodsInfo.stock === 0 || timeStatusEnum !== TimeStatusEnum.STARTED">
            <view class="btn-price">{{ fen2yuan(state.goodsInfo.price) }}</view>
            <view v-if="timeStatusEnum === TimeStatusEnum.STARTED">
              <view v-if="state.goodsInfo.stock === 0">已售罄</view>
              <view v-else>立即秒杀</view>
            </view>
            <view v-else>{{ timeStatusEnum }}</view>
          </button>
        </view>
      </detail-tabbar>
    </block>
  </s-layout>
</template>

<script setup>
  import {
    reactive,
    computed,
    ref,
    unref
  } from 'vue';
  import {
    onLoad,
    onPageScroll
  } from '@dcloudio/uni-app';
  import sheep from '@/sheep';
  import {
    isEmpty,
    min
  } from 'lodash-es';
  import {
    useDurationTime,
    formatGoodsSwiper,
    fen2yuan
  } from '@/sheep/hooks/useGoods';
  import detailNavbar from './components/detail/detail-navbar.vue';
  import detailCellSku from './components/detail/detail-cell-sku.vue';
  import detailTabbar from './components/detail/detail-tabbar.vue';
  import detailSkeleton from './components/detail/detail-skeleton.vue';
  import detailCommentCard from './components/detail/detail-comment-card.vue';
  import detailContentCard from './components/detail/detail-content-card.vue';
  import detailProgress from './components/detail/detail-progress.vue';
  import SeckillApi from '@/sheep/api/promotion/seckill';
  import SpuApi from '@/sheep/api/product/spu';
  import {
    getTimeStatusEnum,
    TimeStatusEnum
  } from '@/sheep/util/const';

  const headerBg = sheep.$url.css('/static/img/shop/goods/seckill-bg.png');
  const btnBg = sheep.$url.css('/static/img/shop/goods/seckill-btn.png');
  const disabledBtnBg = sheep.$url.css('/static/img/shop/goods/activity-btn-disabled.png');
  const seckillBg = sheep.$url.css('/static/img/shop/goods/seckill-tip-bg.png');
  const grouponBg = sheep.$url.css('/static/img/shop/goods/groupon-tip-bg.png');

  onPageScroll(() => {});
  const state = reactive({
    skeletonLoading: true,
    goodsInfo: {},
    showSelectSku: false,
    goodsSwiper: [],
    selectedSku: {},
    showModel: false,
    total: 0,
    percent: 0,
    price: '',
  });

  const endTime = computed(() => {
    return useDurationTime(activity.value.endTime);
  });

  // 规格变更
  function onSkuChange(e) {
    state.selectedSku = e;
  }

  // 立即购买
  function onBuy(sku) {
    sheep.$router.go('/pages/order/confirm', {
      data: JSON.stringify({
        order_type: 'goods',
        buy_type: 'seckill',
        seckillActivityId: activity.value.id,
        items: [{
          skuId: sku.id,
          count: sku.count,
        }, ],
      }),
    });
  }

  // 分享信息
  const shareInfo = computed(() => {
    if (isEmpty(unref(activity))) return {};
    return sheep.$platform.share.getShareInfo({
      title: activity.value.name,
      image: sheep.$url.cdn(state.goodsInfo.picUrl),
      params: {
        page: '4',
        query: activity.value.id,
      },
    }, {
      type: 'goods', // 商品海报
      title: activity.value.name, // 商品标题
      image: sheep.$url.cdn(state.goodsInfo.picUrl), // 商品主图
      price: state.goodsInfo.price, // 商品价格
      marketPrice: state.goodsInfo.marketPrice, // 商品原价
    }, );
  });

  const activity = ref();
  const timeStatusEnum = ref('');

  // 查询活动
  const getActivity = async (id) => {
    const {
      data
    } = await SeckillApi.getSeckillActivity(id);
    activity.value = data;
    timeStatusEnum.value = getTimeStatusEnum(activity.value.startTime, activity.value.endTime);
    state.percent = 100 - data.stock / data.totalStock * 100;
    // 查询商品
    await getSpu(data.spuId);
  };

  // 查询商品
  const getSpu = async (id) => {
    const {
      data
    } = await SpuApi.getSpuDetail(id);
    data.activity_type = 'seckill';
    state.goodsInfo = data;
    // 处理轮播图
    state.goodsSwiper = formatGoodsSwiper(state.goodsInfo.sliderPicUrls);

    // 默认显示最低价
    state.goodsInfo.price = min([
      state.goodsInfo.price,
      ...activity.value.products.map((spu) => spu.seckillPrice),
    ]);

    // 价格、库存使用活动的
    data.skus.forEach((sku) => {
      const product = activity.value.products.find((product) => product.skuId === sku.id);
      if (product) {
        sku.price = product.seckillPrice;
        sku.stock = Math.min(sku.stock, product.stock);
      } else {
        // 找不到可能是没配置，则不能发起秒杀
        sku.stock = 0;
      }
      // 设置限购数量
      if (activity.value.totalLimitCount > 0 && activity.value.singleLimitCount > 0) {
        sku.limitCount = Math.min(activity.value.totalLimitCount, activity.value.singleLimitCount);
      } else if (activity.value.totalLimitCount > 0) {
        sku.limitCount = activity.value.totalLimitCount;
      } else if (activity.value.singleLimitCount > 0) {
        sku.limitCount = activity.value.singleLimitCount;
      }
    });

    state.skeletonLoading = false;
  };

  onLoad((options) => {
    // 非法参数
    if (!options.id) {
      state.goodsInfo = null;
      return;
    }

    // 查询活动
    getActivity(options.id);
  });
</script>

<style lang="scss" scoped>
  .disabled-btn-box[disabled] {
    background-color: transparent;
  }

  .detail-card {
    background-color: $white;
    margin: 14rpx 20rpx;
    border-radius: 10rpx;
    overflow: hidden;
  }

  // 价格标题卡片
  .title-card {
    width: 710rpx;
    box-sizing: border-box;
    // height: 320rpx;
    background-size: 100% 100%;
    border-radius: 10rpx;
    background-image: v-bind(headerBg);
    background-repeat: no-repeat;

    .price-box {
      .price-text {
        font-size: 30rpx;
        font-weight: 500;
        color: #fff;
        line-height: normal;
        font-family: OPPOSANS;

        &::before {
          content: '￥';
          font-size: 30rpx;
        }
      }
    }

    .origin-price {
      font-size: 24rpx;
      font-weight: 400;
      color: #fff;
      opacity: 0.7;

      .origin-price-text {
        text-decoration: line-through;

        font-family: OPPOSANS;

        &::before {
          content: '￥';
        }
      }
    }

    .tig {
      border: 2rpx solid #ffffff;
      border-radius: 4rpx;
      width: 126rpx;
      height: 38rpx;

      .tig-icon {
        width: 40rpx;
        height: 40rpx;
        margin-left: -2rpx;
        background: #ffffff;
        border-radius: 4rpx 0 0 4rpx;

        .cicon-alarm {
          font-size: 32rpx;
          color: #fc6e6f;
        }
      }

      .tig-title {
        width: 86rpx;
        font-size: 24rpx;
        font-weight: 500;
        line-height: normal;
        color: #ffffff;
        display: flex;
        justify-content: center;
        align-items: center;
      }
    }

    .countdown-title {
      font-size: 26rpx;
      font-weight: 500;
      color: #ffffff;
    }

    .countdown-time {
      font-size: 26rpx;
      font-weight: 500;
      color: #ffffff;

      .countdown-h {
        font-size: 24rpx;
        font-family: OPPOSANS;
        font-weight: 500;
        color: #ffffff;
        padding: 0 4rpx;
        height: 40rpx;
        background: rgba(#000000, 0.1);
        border-radius: 6rpx;
      }

      .countdown-num {
        font-size: 24rpx;
        font-family: OPPOSANS;
        font-weight: 500;
        color: #ffffff;
        width: 40rpx;
        height: 40rpx;
        background: rgba(#000000, 0.1);
        border-radius: 6rpx;
      }
    }

    .discounts-box {
      .discounts-tag {
        padding: 4rpx 10rpx;
        font-size: 24rpx;
        font-weight: 500;
        border-radius: 4rpx;
        color: var(--ui-BG-Main);
        // background: rgba(#2aae67, 0.05);
        background: var(--ui-BG-Main-tag);
      }

      .discounts-title {
        font-size: 24rpx;
        font-weight: 500;
        color: var(--ui-BG-Main);
        line-height: normal;
      }

      .cicon-forward {
        color: var(--ui-BG-Main);
        font-size: 24rpx;
        line-height: normal;
        margin-top: 4rpx;
      }
    }

    .title-text {
      font-size: 30rpx;
      font-weight: bold;
      line-height: 42rpx;
      color: #fff;
    }

    .subtitle-text {
      font-size: 26rpx;
      font-weight: 400;
      color: #ffffff;
      line-height: 42rpx;
      opacity: 0.9;
    }
  }

  // 购买
  .buy-box {
    .check-btn-box {
      width: 248rpx;
      height: 80rpx;
      font-size: 24rpx;
      font-weight: 600;
      margin-left: -36rpx;
      background-image: v-bind(btnBg);
      background-repeat: no-repeat;
      background-size: 100% 100%;
      color: #ffffff;
      line-height: normal;
      border-radius: 0px 40rpx 40rpx 0px;
    }

    .disabled-btn-box {
      width: 248rpx;
      height: 80rpx;
      font-size: 24rpx;
      font-weight: 600;
      margin-left: -36rpx;
      background-image: v-bind(disabledBtnBg);
      background-repeat: no-repeat;
      background-size: 100% 100%;
      color: #999999;
      line-height: normal;
      border-radius: 0px 40rpx 40rpx 0px;
    }

    .btn-price {
      font-family: OPPOSANS;

      &::before {
        content: '￥';
      }
    }

    .origin-price-btn {
      width: 236rpx;
      height: 80rpx;
      background: rgba(#ff5651, 0.1);
      color: #ff6000;
      border-radius: 40rpx 0px 0px 40rpx;
      line-height: normal;
      font-size: 24rpx;
      font-weight: 500;

      .no-original {
        font-size: 28rpx;
      }

      .btn-title {
        font-size: 28rpx;
      }
    }
  }

  //秒杀卡片
  .seckill-box {
    background: v-bind(seckillBg) no-repeat;
    background-size: 100% 100%;
  }

  .groupon-box {
    background: v-bind(grouponBg) no-repeat;
    background-size: 100% 100%;
  }

  //活动卡片
  .activity-box {
    width: 100%;
    height: 80rpx;
    box-sizing: border-box;
    margin-bottom: 10rpx;

    .activity-title {
      font-size: 26rpx;
      font-weight: 500;
      color: #ffffff;
      line-height: 42rpx;

      .activity-icon {
        width: 38rpx;
        height: 38rpx;
      }
    }

    .activity-go {
      width: 70rpx;
      height: 32rpx;
      background: #ffffff;
      border-radius: 16rpx;
      font-weight: 500;
      color: #ff6000;
      font-size: 24rpx;
      line-height: normal;
    }
  }

  .model-box {
    .title {
      font-size: 36rpx;
      font-weight: bold;
      color: #333333;
    }

    .subtitle {
      font-size: 26rpx;
      font-weight: 500;
      color: #333333;
    }
  }

  image {
    width: 100%;
    height: 100%;
  }
</style>