<template>
  <s-layout :onShareAppMessage="shareInfo" navbar="goods">
    <!-- 标题栏 -->
    <detailNavbar />
    <!-- 骨架屏 -->
    <detailSkeleton v-if="state.skeletonLoading" />
    <!-- 空置页 -->
    <s-empty
      v-else-if="
        state.goodsInfo === null ||
        !['groupon', 'groupon_ladder'].includes(state.goodsInfo.activity_type)
      "
      text="活动不存在或已结束"
      icon="/static/soldout-empty.png"
      showAction
      actionText="返回上一页"
      @clickAction="sheep.$router.back()"
    />
    <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 detail-card ss-m-y-14 ss-m-x-20 ss-p-x-20 ss-p-y-34">
          <view class="ss-flex ss-row-between ss-m-b-60">
            <view>
              <view class="price-box ss-flex ss-col-bottom ss-m-b-18">
                <view class="price-text ss-m-r-16">
                  {{ goodsPrice }}
                </view>
                <view class="tig ss-flex ss-col-center">
                  <view class="tig-icon ss-flex ss-col-center ss-row-center">
                    <view class="groupon-tag">
                      <image
                        :src="sheep.$url.static('/static/img/shop/goods/groupon-tag.png')"
                      ></image>
                    </view>
                  </view>
                  <view class="tig-title">拼团价</view>
                </view>
              </view>
              <view class="ss-flex ss-row-between">
                <view
                  class="origin-price ss-flex ss-col-center"
                  v-if="state.goodsInfo.original_price"
                >
                  单买价：
                  <view class="origin-price-text">
                    {{ state.goodsInfo.original_goods_price[0] || state.goodsInfo.original_price }}
                  </view>
                </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="title-text ss-line-2 ss-m-b-6">{{ state.goodsInfo.title }}</view>
          <view class="subtitle-text ss-line-1">{{ state.goodsInfo.subtitle }}</view>
        </view>

        <!-- 功能卡片 -->
        <view class="detail-cell-card detail-card ss-flex-col">
          <!-- 规格 -->
          <detail-cell-sku
            v-model="state.selectedSkuPrice.goods_sku_text"
            :skus="state.goodsInfo.skus"
            @tap="state.showSelectSku = true"
          />
          <!-- 服务 -->
          <detail-cell-service v-model="state.goodsInfo.service" />
          <!-- 参数 -->
          <detail-cell-params v-model="state.goodsInfo.params" />
          <!-- 玩法 -->
          <detail-cell
            v-if="state.goodsInfo.activity.richtext_id > 0"
            label="玩法"
            :value="state.goodsInfo.activity.richtext_title"
            @click="
              sheep.$router.go('/pages/public/richtext', {
                id: state.goodsInfo.activity.richtext_id,
                title: state.goodsInfo.activity.richtext_title,
              })
            "
          />
        </view>

        <!-- 参团列表 -->
        <groupon-card-list
          v-if="state.goodsInfo.activity.rules.is_team_card === '1'"
          v-model="state.goodsInfo"
          @join="onJoinGroupon"
        />

        <!-- 规格与数量弹框 -->
        <s-select-groupon-sku
          :show="state.showSelectSku"
          :goodsInfo="state.goodsInfo"
          :grouponAction="state.grouponAction"
          :grouponNum="state.grouponNum"
          @buy="onBuy"
          @ladder="onLadder"
          @change="onSkuChange"
          @close="onSkuClose"
        />
      </view>

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

      <!-- 商品tabbar -->
      <!-- TODO: 已售罄、预热 判断 设计-->
      <detail-tabbar v-model="state.goodsInfo">
        <view class="buy-box ss-flex ss-col-center ss-p-r-20">
          <button
            v-if="state.goodsInfo.activity.rules.is_alone == 1"
            class="ss-reset-button origin-price-btn ss-flex-col"
            @tap="sheep.$router.go('/pages/goods/index', { id: state.goodsInfo.id })"
          >
            <view class="btn-price">{{
              state.goodsInfo.original_goods_price[0] || state.goodsInfo.original_price
            }}</view>
            <view>原价购买</view>
          </button>
          <button v-else class="ss-reset-button origin-price-btn ss-flex-col">
            <view class="btn-title">{{
              state.grouponNum == 0 ? '阶梯团' : state.grouponNum + '人团'
            }}</view>
          </button>
          <button
            class="ss-reset-button btn-tox ss-flex-col"
            @tap="onCreateGroupon"
            :class="
              state.goodsInfo.activity.status === 'ing' && state.goodsInfo.stock != 0
                ? 'check-btn-box'
                : 'disabled-btn-box'
            "
            :disabled="state.goodsInfo.stock === 0 || state.goodsInfo.activity.status != 'ing'"
          >
            <view class="btn-price">{{ goodsPrice }}</view>
            <view v-if="state.goodsInfo.activity.status === 'ing'">
              <view v-if="state.goodsInfo.stock === 0">已售罄</view>
              <view v-else>立即开团</view>
            </view>
            <view v-else>{{ state.goodsInfo.activity.status_text }}</view>
          </button>
        </view>
      </detail-tabbar>
    </block>
    <!-- 轮播  -->
  </s-layout>
</template>

<script setup>
  import { reactive, getCurrentInstance, computed, ref } from 'vue';
  import { onLoad, onPageScroll } from '@dcloudio/uni-app';
  import sheep from '@/sheep';
  import { isEmpty } from 'lodash';
  import detailNavbar from './components/detail/detail-navbar.vue';
  import detailCell from './components/detail/detail-cell.vue';
  import detailCellSku from './components/detail/detail-cell-sku.vue';
  import detailCellService from './components/detail/detail-cell-service.vue';
  import detailCellParams from './components/detail/detail-cell-params.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 grouponCardList from './components/groupon/groupon-card-list.vue';
  import { useDurationTime, formatPrice, formatGoodsSwiper } from '@/sheep/hooks/useGoods';


  const headerBg = sheep.$url.css('/static/img/shop/goods/groupon-bg.png');
  const btnBg = sheep.$url.css('/static/img/shop/goods/groupon-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,  // 骨架屏
    goodsId: 0,             // 商品ID
    goodsInfo: {},          // 商品信息
    goodsSwiper: [],        // 商品轮播图
    showSelectSku: false,   // 显示规格弹框
    selectedSkuPrice: {},   // 选中的规格价格
    grouponId: 0,           // 团购ID
    grouponType: '',        // 团购类型
    grouponNum: 0,          // 团购人数
    grouponAction: 'create',  // 团购操作  
  });

  // 商品主价格
  const goodsPrice = computed(() => {
    if (isEmpty(state.selectedSkuPrice)) {
      return formatPrice(state.goodsInfo.price);
    }
	if(state.grouponNum === 0 && state.grouponType === 'groupon_ladder') {
		return formatPrice(state.goodsInfo.price)
	}
    if (state.grouponType === 'groupon') {
      return state.selectedSkuPrice.groupon_price;
    }
    if (state.grouponType === 'groupon_ladder') {
      return state.selectedSkuPrice.ladder_price;
    }
    return '';
  });

  // 倒计时
  const endTime = computed(() => {
    return useDurationTime(state.goodsInfo.activity.end_time);
  });

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

  // 阶梯变更
  function onLadder(e) {
    state.showSelectSku = false;
    state.grouponNum = e
    setTimeout(() => {
      state.showSelectSku = true;
    }, 80);
  }

  function onSkuClose() {
    state.showSelectSku = false;
  }

  // 发起拼团
  function onCreateGroupon() {
    state.grouponAction = 'create';
    state.grouponId = 0;
    state.showSelectSku = true;
  }

  // 点击参团
  function onJoinGroupon(groupon) {
    state.grouponAction = 'join';
    state.grouponId = groupon.id;
    state.grouponNum = groupon.num;
    state.showSelectSku = true;
  }

  // 立即购买
  function onBuy(e) {
    sheep.$router.go('/pages/order/confirm', {
      data: JSON.stringify({
        order_type: 'goods',
        buy_type: 'groupon',
        activity_id: state.goodsInfo.activity.id,
        groupon_id: state.grouponId,
        groupon_num: state.grouponNum,
        goods_list: [
          {
            goods_id: e.goods_id,
            goods_num: e.goods_num,
            goods_sku_price_id: e.id,
          },
        ],
      }),
    });
  }

  const shareInfo = computed(() => {
    if (isEmpty(state.goodsInfo?.activity)) return {};
    return sheep.$platform.share.getShareInfo(
      {
        title: state.goodsInfo.title,
        image: sheep.$url.cdn(state.goodsInfo.image),
        params: {
          page: '3',
          query: state.goodsInfo.id + ',' + state.goodsInfo.activity.id,
        },
      },
      {
        type: 'goods', // 商品海报
        title: state.goodsInfo.title, // 商品标题
        image: sheep.$url.cdn(state.goodsInfo.image), // 商品主图
        price: state.goodsInfo.price[0], // 商品价格
        original_price: state.goodsInfo.original_price, // 商品原价
      },
    );
  });

  onLoad(async (options) => {
    // 非法参数
    if (!options.id) {
      state.goodsInfo = null;
      return;
    }
    state.goodsId = options.id;
    // 加载商品信息
    const { error, data } = await sheep.$api.goods.detail(options.id, {
      activity_id: options.activity_id,
    });
    // 关闭骨架屏
    state.skeletonLoading = false;
    if (error === 0) {
      state.goodsInfo = data;
      state.grouponType = state.goodsInfo.activity_type;
      if (state.grouponType === 'groupon') {
        state.grouponNum = state.goodsInfo.activity.rules.team_num;
      }
      state.goodsSwiper = formatGoodsSwiper(state.goodsInfo.images);
    } else {
      // 未找到商品
      state.goodsInfo = null;
    }
  });
</script>

<style lang="scss" scoped>
  .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 {
        margin-left: -2rpx;
        width: 40rpx;
        height: 40rpx;
        background: #ffffff;
        border-radius: 4rpx 0 0 4rpx;

        .groupon-tag {
          width: 32rpx;
          height: 32rpx;
        }
      }

      .tig-title {
        font-size: 24rpx;
        font-weight: 500;
        line-height: normal;
        color: #ffffff;
        width: 86rpx;
        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;
      }
    }

    .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 {
    .disabled-btn-box[disabled] {
      background-color: transparent;
    }
    .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;
    }

    .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;

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

      &::before {
        content: '￥';
      }
    }
    .more-item-box {
      .more-item {
        width: 156rpx;
        height: 58rpx;
        font-size: 26rpx;
        font-weight: 500;
        color: #999999;
        border-radius: 10rpx;
      }
      .more-item-hover {
        background: rgba(#ffefe5, 0.32);
        color: #ff6000;
      }
    }
  }

  //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>