<template>
  <view v-if="!isLoading && detail && goods" class="container" :style="appThemeStyle">
    <!-- 背景区块 -->
    <view class="bg-layer"></view>

    <!-- 商品信息 -->
    <view class="goods-info" @click="onTargetGoods()">
      <view class="goods-image">
        <view v-if="detail.active_type != ActiveTypeEnum.NORMAL.value" class="label">
          <text>{{ ActiveTypeEnum[detail.active_type].name2 }}</text>
        </view>
        <image class="image" :src="goods.goods_image"></image>
      </view>
      <view class="goods-detail">
        <view class="goods-name">
          <text class="twoline-hide">{{ goods.goods_name }}</text>
        </view>
        <view class="goods-price">
          <text class="f-26 col-m">￥</text>
          <text class="m-price">{{ goods.groupon_price }}</text>
          <text class="line-price">￥{{ goods.original_price }}</text>
        </view>
        <view class="goods-tag">
          <text class="tag-item">{{ detail.people }}人团</text>
          <text v-if="goods.diff_price != '0.00'" class="tag-item">拼团省{{ goods.diff_price }}元</text>
        </view>
      </view>
    </view>
    <!-- 拼团成员 -->
    <view class="main">
      <!-- 拼团状态 (成功、失败) -->
      <view v-if="detail.status == TaskStatusEnum.FAIL.value" class="main_status main_status__fail">
        <text class="status-icon iconfont icon-shibai"></text>
        <text>超过有效时间，拼团失败</text>
      </view>
      <view v-if="detail.status == TaskStatusEnum.SUCCESS.value" class="main_status main_status__success">
        <text class="status-icon iconfont icon-success"></text>
        <text>拼团已成功</text>
      </view>
      <!-- 参团用户 -->
      <view class="main-user">
        <view v-for="(item, index) in detail.users" :key="item.id" class="user-item">
          <avatar-image :url="item.userInfo.avatar_url" :width="100" />
          <view v-if="item.is_leader" class="user-role"><text class="role-name">团长</text></view>
        </view>
        <!-- 虚位以待 -->
        <view v-for="(val, idx) in detail.people - detail.joined_people" :key="idx" class="user-item user-item__wait">
          <text class="iconfont icon-wenhao"></text>
        </view>
      </view>
      <!-- 拼单状态：拼团中 -->
      <view v-if="detail.status == TaskStatusEnum.NORMAL.value" class="main_tiem">
        <text>还差</text>
        <text class="main_timer_color">{{ detail.people - detail.joined_people }}</text>
        <text>个名额，</text>
        <!-- 倒计时 -->
        <count-down :date="detail.end_time" separator="colon" theme="custom" customBgColor="#FE5246" />
        <text>后结束</text>
      </view>
      <!-- 操作按钮 -->
      <block v-if="detail.status == TaskStatusEnum.NORMAL.value">
        <view v-if="!detail.is_join" class="button" @click="onShowSkuPopup()">立即参团</view>
        <!-- 分享给朋友 -->
        <button v-else open-type="share" class="button btn-normal" @click="handleShareBtn()">
          <view class="btn-item btn-item__main"><text>立即分享</text></view>
        </button>
      </block>
      <view v-else class="button" @click="onTargetGoods()">去开团</view>
    </view>
    <!-- 拼团须知 -->
    <view class="notice" @click="handleShowRules()">
      <text class="f-30">拼团须知</text>
      <text class="t-brief">{{ setting.ruleBrief }}</text>
      <text class="icon-arrow"></text>
    </view>

    <!-- 商品SKU弹窗 -->
    <SkuPopup v-model="showSkuPopup" :skuMode="skuMode" :goods="goods" :buyMode="1" :taskId="detail.task_id" :stepPeople="detail.people" />

    <!-- 拼团规则弹窗 -->
    <u-modal v-model="showRules" title="拼团规则">
      <scroll-view style="height: 610rpx; touch-action: none;" :scroll-y="true">
        <view class="pops-content">
          <text>{{ setting.ruleDetail }}</text>
        </view>
      </scroll-view>
    </u-modal>
    <!-- 商品推荐 -->
    <recommended />
  </view>
</template>

<script>
  import WxofficialMixin from '@/core/mixins/wxofficial'
  import { getCurrentPage, buildUrL } from '@/core/app'
  import AvatarImage from '@/components/avatar-image'
  import CountDown from '@/components/countdown'
  import Recommended from '@/components/recommended'
  import SkuPopup from '../goods/components/SkuPopup'
  import { ActiveTypeEnum, ActiveStatusEnum, TaskStatusEnum } from '@/common/enum/groupon'
  import * as TaskApi from '@/api/groupon/task'
  import StoreModel from '@/common/model/Store'
  import GrouponSettingModel from '@/common/model/groupon/Setting'

  export default {
    components: {
      AvatarImage,
      SkuPopup,
      CountDown,
      Recommended
    },
    mixins: [WxofficialMixin],
    data() {
      return {
        // 正在加载
        isLoading: true,
        // 枚举类
        ActiveTypeEnum,
        ActiveStatusEnum,
        TaskStatusEnum,
        // 显示拼团规则
        showRules: false,
        // 显示/隐藏SKU弹窗
        showSkuPopup: false,
        // 按钮模式 1:都显示 2:只显示购物车 3:只显示立即购买
        skuMode: 3,
        // 当前拼单ID
        taskId: null,
        // 拼单详情
        detail: null,
        // 拼团商品
        goods: null,
        // 拼团设置
        setting: {}
      }
    },

    /**
     * 生命周期函数--监听页面加载
     */
    onLoad({ taskId }) {
      // 记录拼单ID
      this.taskId = taskId
      // 获取拼团设置
      this.getSetting()
      // 获取拼单详情
      this.getTaskDetail()
    },

    methods: {

      // 获取拼团设置
      getSetting() {
        GrouponSettingModel.data().then(setting => (this.setting = setting))
      },

      // 获取拼单详情
      getTaskDetail() {
        const { taskId } = this
        this.isLoading = true
        TaskApi.detail(taskId)
          .then(result => {
            this.detail = result.data.detail
            this.goods = result.data.goods
            // 设置微信公众号链接分享卡片内容
            this.setWxofficialShareData()
          })
          .finally(() => (this.isLoading = false))
      },

      // 跳转到拼团商品详情
      onTargetGoods() {
        const { goods } = this
        this.$navTo('pages/groupon/goods/index', { grouponGoodsId: goods.groupon_goods_id })
      },

      // 点击分享按钮
      handleShareBtn() {
        // #ifndef MP
        this.handleCopyLink()
        // #endif
      },

      // 复制当前页面链接
      handleCopyLink() {
        const app = this
        app.getShareUrl().then(shareUrl => {
          // 复制到剪贴板
          uni.setClipboardData({
            data: shareUrl,
            success: () => app.$toast('复制链接成功，快去发送给朋友吧'),
            fail: ({ errMsg }) => app.$toast('复制失败 ' + errMsg)
          })
        })
      },

      // 获取分享链接 (H5外链)
      getShareUrl() {
        const { path, query } = getCurrentPage()
        return new Promise((resolve, reject) => {
          // 获取h5站点地址
          StoreModel.h5Url().then(baseUrl => {
            // 生成完整的分享链接
            const shareUrl = buildUrL(baseUrl, path, query)
            resolve(shareUrl)
          })
        })
      },

      // 显示拼团规则
      handleShowRules() {
        this.showRules = true
      },

      // 显示/隐藏SKU弹窗
      onShowSkuPopup() {
        this.showSkuPopup = !this.showSkuPopup
      },

      // 设置微信公众号链接分享卡片内容
      setWxofficialShareData() {
        const { detail, goods } = this
        this.updateShareCardData({
          title: goods.goods_name,
          desc: goods.selling_point,
          imgUrl: goods.goods_image
        })
      },

    },

    /**
     * 分享当前页面
     */
    onShareAppMessage() {
      // 构建页面参数
      const app = this
      const params = app.$getShareUrlParams({ taskId: app.taskId })
      return {
        title: app.goods.goods_name,
        path: `/pages/groupon/task/index?${params}`
      }
    },

    /**
     * 分享到朋友圈
     */
    onShareTimeline() {
      // 构建页面参数
      const app = this
      const params = app.$getShareUrlParams({ taskId: app.taskId })
      return {
        title: app.goods.goods_name,
        path: `/pages/groupon/task/index?${params}`
      }
    },

  }
</script>

<style lang="scss" scoped>
  .container {
    position: relative;
    overflow: hidden;
  }

  // 箭头图标
  .icon-arrow {
    display: inline-block;
    width: 0;
    height: 0;
    border-width: 10rpx;
    border-style: solid;
    border-color: transparent transparent transparent #ccc;
  }

  // 背景区块
  .bg-layer {
    position: absolute;
    top: 0;
    width: 100%;
    z-index: 0;
    height: 250rpx;
    text-align: center;
    line-height: 100rpx;

    &::after {
      width: 140%;
      height: 250rpx;
      position: absolute;
      left: -20%;
      top: 0;
      z-index: -1;
      content: '';
      border-radius: 0 0 50% 50%;
      background-image: linear-gradient(180deg, #ff5644, #fd7524);
    }
  }

  // 商品信息
  .goods-info {
    position: relative;
    margin: auto;
    margin-top: 30rpx;
    padding: 28rpx;
    padding-bottom: 22rpx;
    width: 92%;
    background: #fff;
    border-radius: 10rpx;
    box-sizing: border-box;
    box-shadow: 0px 5px 12px rgba(226, 226, 226, 0.62);
    display: flex;

    .goods-image {
      position: relative;
      margin-right: 30rpx;

      .label {
        position: absolute;
        top: 0;
        left: 0;
        z-index: 1;
        background: linear-gradient(to right, #ffa600, #f5b914);
        color: #fff;
        font-size: 24rpx;
        padding: 6rpx 8rpx;
        border-radius: 8rpx;
      }

      .image {
        display: block;
        width: 240rpx;
        height: 240rpx;
        border-radius: 10rpx;
      }
    }

    .goods-detail {
      background: #fff;

      .goods-name {
        display: block;
        font-size: 28rpx;
        line-height: 1.5;
      }

      .goods-price {
        margin: 20rpx 0;
        color: #eb5841;

        .m-price {
          display: inline-block;
          font-size: 40rpx;
        }

        .line-price {
          display: inline-block;
          margin: 10rpx;
          font-size: 24rpx;
          color: #8e8e8e;
          text-decoration: line-through;
        }
      }

      .goods-tag {
        margin-bottom: -10rpx;

        .tag-item {
          display: inline-block;
          padding: 4rpx 12rpx;
          font-size: 24rpx;
          line-height: 36rpx;
          border-radius: 5rpx;
          color: #fa3534;
          background: #fef0f0;
          margin-right: 10rpx;
          margin-bottom: 10rpx;
          box-sizing: border-box;
        }
      }
    }

    &:after {
      display: block;
      clear: both;
      content: '';
      visibility: hidden;
      height: 0;
    }
  }

  // 拼团成员
  .main {
    position: relative;
    margin: auto;
    margin-top: 30rpx;
    padding: 50rpx 20rpx;
    background: #fff;
    box-sizing: border-box;

    .main-user {
      display: flex;
      flex-wrap: wrap;
      justify-content: center;
      margin: 0 auto;
      width: 600rpx;
      margin-bottom: 30rpx;

      .user-item {
        width: 100rpx;
        height: 100rpx;
        margin: 0 25rpx 25rpx 0;
        position: relative;
        box-sizing: border-box;

        &:nth-child(5n + 0) {
          margin-right: 0;
        }

        .user-role {
          width: 100%;
          text-align: center;
          height: 40rpx;
          position: absolute;
          left: 0;
          bottom: -1rpx;

          .role-name {
            background: #eb5841;
            border-radius: 15rpx;
            display: inline-block;
            line-height: 1.4;
            font-size: 24rpx;
            color: #fff;
            width: 78rpx;
          }
        }

        &.user-item__wait {
          border-radius: 50%;
          background: #f8f8f8;
          border: 1rpx dashed #dbdbdb;
          display: flex;
          justify-content: center;
          align-items: center;

          text {
            color: #dbdbdb;
            font-size: 38rpx;
          }
        }
      }
    }

    .button {
      display: block;
      margin-top: 40rpx;
      width: 550rpx;
      line-height: 84rpx;
      font-size: 28rpx;
      background-image: linear-gradient(90deg, #fe5246, #fb265a);
      border: none;
      box-shadow: 0px 3px 8px rgba(255, 8, 15, 0.25);
      text-align: center;
      margin: 0 auto;
      color: #fff;
      border-radius: 40rpx;
      animation: btn_anim 0.9s linear infinite;
      transform-origin: center;
    }
  }

  // 按钮动画
  @keyframes btn_anim {
    0% {
      -webkit-transform: scale(1);
      transform: scale(1);
    }

    40% {
      -webkit-transform: scale(1.05);
      transform: scale(1.05);
    }
  }

  /* 拼团状态 */
  .main_status {
    margin-bottom: 40rpx;
    font-size: 35rpx;
    text-align: center;

    .status-icon {
      margin-right: 15rpx;
    }
  }

  .main_status__fail {
    color: $main-bg;
  }

  .main_status__success {
    color: #08b625;
  }

  /* 倒计时 */
  .main_tiem {
    margin-bottom: 50rpx;
    font-size: 30rpx;
    text-align: center;
    display: flex;
    justify-content: center;

    .main_timer_color {
      color: #fc8434;
      margin: 0 6rpx;
    }
  }

  // 拼团须知
  .notice {
    display: flex;
    margin: auto;
    margin-top: 30rpx;
    padding: 35rpx 20rpx;
    background: #fff;
    border-radius: 10rpx;
    box-sizing: border-box;
    justify-content: space-between;
    align-items: center;

    .t-brief {
      font-size: 26rpx;
      color: #a6a6a6;
    }
  }

  // 拼团规则 (弹窗)
  .pops-content {
    padding: 30rpx 48rpx;
    font-size: 28rpx;
    line-height: 44rpx;
    text-align: left;
    color: #606266;
    min-height: 320rpx;
    max-height: 640rpx;
    box-sizing: border-box;
  }
</style>