<template>
  <!-- 商品详情页面 -->
  <view v-show="!isLoading" class="container" :style="appThemeStyle">
    <!-- 商品图片轮播 -->
    <SlideImage v-if="!isLoading" :video="goods.video" :videoCover="goods.videoCover" :images="goods.goods_images" />

    <!-- 商品信息 -->
    <view v-if="!isLoading" class="goods-info m-top20">
      <!-- 价格、销量 -->
      <view class="info-item info-item__top dis-flex flex-x-between flex-y-end">
        <view class="block-left dis-flex flex-y-center">
          <!-- 商品售价 -->
          <text class="floor-price__samll">￥</text>
          <text class="floor-price">{{ goods.goods_price_min }}</text>
          <!-- 会员价标签 -->
          <view v-if="goods.is_user_grade" class="user-grade">
            <text>会员价</text>
          </view>
          <!-- 划线价 -->
          <text v-if="goods.line_price_min > 0" class="original-price">￥{{ goods.line_price_min }}</text>
        </view>
        <view class="block-right dis-flex">
          <!-- 销量 -->
          <view class="goods-sales">
            <text>已售{{ goods.goods_sales }}件</text>
          </view>
        </view>
      </view>
      <!-- 标题、分享 -->
      <view class="info-item info-item__name dis-flex flex-y-center">
        <view class="goods-name flex-box">
          <text class="twoline-hide">{{ goods.goods_name }}</text>
        </view>
        <view class="goods-share__line"></view>
        <view class="goods-share">
          <button class="share-btn dis-flex flex-dir-column" @click="onShowShareSheet()">
            <text class="share__icon iconfont icon-fenxiang"></text>
            <text class="f-24">分享</text>
          </button>
        </view>
      </view>
      <!-- 商品卖点 -->
      <view v-if="goods.selling_point" class="info-item info-item_selling-point">
        <text>{{ goods.selling_point }}</text>
      </view>
    </view>

    <!-- 选择商品规格 -->
    <view v-if="goods.spec_type == 20" class="goods-choice m-top20 b-f" @click="onShowSkuPopup(1)">
      <view class="spec-list">
        <view class="flex-box">
          <text class="col-8">选择：</text>
          <text class="spec-name" v-for="(item, index) in goods.specList" :key="index">{{ item.spec_name }}</text>
        </view>
        <view class="f-26 col-9 t-r">
          <text class="iconfont icon-arrow-right"></text>
        </view>
      </view>
    </view>

    <!-- 商品服务 -->
    <Service v-if="!isLoading" :goods-id="goodsId" />

    <!-- 商品SKU弹窗 -->
    <SkuPopup v-if="!isLoading" v-model="showSkuPopup" :skuMode="skuMode" :goods="goods" @addCart="onAddCart" />

    <!-- 商品评价 -->
    <Comment v-if="!isLoading" :goods-id="goodsId" :limit="2" />

    <!-- 商品描述 -->
    <view v-if="!isLoading" class="goods-content m-top20">
      <view class="item-title b-f">
        <text>商品描述</text>
      </view>
      <view v-if="goods.content != ''" class="goods-content__detail b-f">
        <mp-html :content="goods.content" />
      </view>
    </view>

    <!-- 底部选项卡 -->
    <view class="footer-fixed">
      <view class="footer-container">
        <!-- 导航图标 -->
        <view class="foo-item-fast">
          <!-- 首页 -->
          <view class="fast-item fast-item--home" @click="onTargetHome">
            <view class="fast-icon">
              <text class="iconfont icon-shouye"></text>
            </view>
            <view class="fast-text">
              <text>首页</text>
            </view>
          </view>
          <!-- 客服 -->
          <customer-btn v-if="isShowCustomerBtn" :showCard="true" :cardTitle="goods.goods_name" :cardImage="goods.goods_image">
            <view class="fast-item">
              <view class="fast-icon">
                <text class="iconfont icon-kefu1"></text>
              </view>
              <view class="fast-text">
                <text>客服</text>
              </view>
            </view>
          </customer-btn>
          <!-- 购物车 -->
          <view class="fast-item fast-item--cart" @click="onTargetCart">
            <view v-if="cartTotal > 0" class="fast-badge fast-badge--fixed">{{ cartTotal > 99 ? '99+' : cartTotal }} </view>
            <view class="fast-icon">
              <text class="iconfont icon-gouwuche"></text>
            </view>
            <view class="fast-text">
              <text>购物车</text>
            </view>
          </view>
        </view>
        <!-- 操作按钮 -->
        <view class="foo-item-btn">
          <view class="btn-wrapper">
            <view v-if="isEnableCart" class="btn-item btn-item-deputy" @click="onShowSkuPopup(2)">
              <text>加入购物车</text>
            </view>
            <view class="btn-item btn-item-main" @click="onShowSkuPopup(3)">
              <text>立即购买</text>
            </view>
          </view>
        </view>
      </view>
    </view>

    <!-- 快捷导航 -->
    <!-- <shortcut bottom="120rpx" /> -->

    <!-- 分享菜单 -->
    <share-sheet v-model="showShareSheet" :shareTitle="goods.goods_name" :shareImageUrl="goods.goods_image" />
  </view>
</template>

<script>
import {getSceneData} from '@/core/app'
import * as GoodsApi from '@/api/goods'
import * as CartApi from '@/api/cart'
import SettingModel from '@/common/model/Setting'
import {GoodsTypeEnum} from '@/common/enum/goods'
import ShareSheet from '@/components/share-sheet'
import CustomerBtn from '@/components/customer-btn'
import SlideImage from './components/SlideImage'
import SkuPopup from './components/SkuPopup'
import Comment from './components/Comment'
import Service from './components/Service'

export default {
  components: {
    ShareSheet,
    CustomerBtn,
    SlideImage,
    SkuPopup,
    Comment,
    Service
  },
  data() {
    return {
      // 正在加载
      isLoading: true,
      // 当前商品ID
      goodsId: null,
      // 商品详情
      goods: {},
      // 购物车总数量
      cartTotal: 0,
      // 显示/隐藏SKU弹窗
      showSkuPopup: false,
      // 模式 1:都显示 2:只显示购物车 3:只显示立即购买
      skuMode: 1,
      // 显示/隐藏分享菜单
      showShareSheet: false,
      // 是否支持加入购物车
      isEnableCart: false,
      // 是否显示在线客服按钮
      isShowCustomerBtn: false
    }
  },

  /**
   * 生命周期函数--监听页面加载
   */
  async onLoad(options) {
    // 记录query参数
    this.onRecordQuery(options)
    // 加载页面数据
    this.onRefreshPage()
    // 是否显示在线客服按钮
    // this.isShowCustomerBtn = await SettingModel.isShowCustomerBtn()
  },

  methods: {
    // 记录query参数
    onRecordQuery(query) {
      const scene = getSceneData(query)
      this.goodsId = query.goodsId ? parseInt(query.goodsId) : parseInt(scene.gid)
    },

    // 刷新页面数据
    onRefreshPage() {
      const app = this
      app.isLoading = true
      Promise.all([app.getGoodsDetail(), app.getCartTotal()]).finally(() => (app.isLoading = false))
    },

    // 获取商品信息
    getGoodsDetail() {
      const app = this
      return new Promise((resolve, reject) => {
        GoodsApi.detail(app.goodsId)
          .then((result) => {
            app.goods = result.data.detail
            if (app.goods.goods_type == GoodsTypeEnum.PHYSICAL.value) {
              app.isEnableCart = true
            }
            resolve(result)
          })
          .catch(reject)
      })
    },

    // 获取购物车总数量
    getCartTotal() {
      const app = this
      return new Promise((resolve, reject) => {
        CartApi.total()
          .then((result) => {
            app.cartTotal = result.data.cartTotal
            resolve(result)
          })
          .catch(reject)
      })
    },

    // 更新购物车数量
    onAddCart(total) {
      this.cartTotal = total
    },

    /**
     * 显示/隐藏SKU弹窗
     * @param {skuMode} 模式 1:都显示 2:只显示购物车 3:只显示立即购买
     */
    onShowSkuPopup(skuMode = 1) {
      const app = this
      if (app.isEnableCart) {
        app.skuMode = skuMode
      } else {
        app.skuMode = 3
      }
      app.showSkuPopup = !app.showSkuPopup
    },

    // 显示隐藏分享菜单
    onShowShareSheet() {
      this.showShareSheet = !this.showShareSheet
    },

    // 跳转到首页
    onTargetHome(e) {
      this.$navTo('pages/index/index')
    },

    // 跳转到购物车页
    onTargetCart() {
      this.$navTo('pages/cart/index')
    }
  },

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

  /**
   * 分享到朋友圈
   * 本接口为 Beta 版本，暂只在 Android 平台支持，详见分享到朋友圈 (Beta)
   * https://developers.weixin.qq.com/miniprogram/dev/framework/open-ability/share-timeline.html
   */
  onShareTimeline() {
    const app = this
    // 构建页面参数
    const params = app.$getShareUrlParams({
      goodsId: app.goodsId
    })
    return {
      title: app.goods.goods_name,
      path: `/pages/goods/detail?${params}`
    }
  }
}
</script>

<style>
page {
  background: #fafafa;
}
</style>
<style lang="scss" scoped>
@import './detail.scss';
</style>
