<template>
  <view class="content">
    <u-navbar :background="navObj" :is-back="false">
      <mSearch ref="mSearch" class="mSearch-input-box" @clickLeft="back" :mode="2" :placeholder="defaultKeyword"
        @search="doSearch(false)" @confirm="doSearch(false)" @SwitchType="doSearchSwitch()" v-model="keyword"
        :isFocusVal="!isShowSeachGoods"></mSearch>
    </u-navbar>

    <view class="search-keyword" v-if="!isShowSeachGoods">
      <scroll-view class="keyword-list-box" v-show="isShowKeywordList" scroll-y>
        <block v-for="(row, index) in keywordList" :key="index">
          <view class="keyword-entry" hover-class="keyword-entry-tap">
            <view class="keyword-text" @tap.stop="doSearch(keywordList[index].words)">
              <rich-text :nodes="row.words"></rich-text>
            </view>
          </view>
        </block>
      </scroll-view>
      <div class="keyword-box" v-show="!isShowKeywordList">
        <view class="keyword-block add1">
          <view class="keyword-list-header">
            <view class="u-tips">热门搜索</view>
          </view>
          <view class="keyword keywordBox">
            <view class="wes" v-for="(keyword, index) in hotKeywordList" @tap="doSearch(keyword)" :key="index">
              {{ keyword }}</view>
          </view>
        </view>
        <view class="keyword-block" v-if="oldKeywordList.length > 0">
          <view class="keyword-list-header">
            <view class="u-tips">搜索历史</view>
          </view>
          <div class="oldKeyList">
            <div class="oldKeyItem" v-if="keyword" v-for="(keyword, index) in oldKeywordList" :key="index"
              @click="doSearch(keyword)">
              <span>{{ keyword }} </span>
            </div>
						
            <div @click="showMore" v-if="oldKeywordIndex > loadIndex" class="oldKeyItem">展示更多</div>
          </div>
        </view>

        <div class="clear mp-iphonex-bottom" @tap="oldDelete">清空搜索历史</div>
      </div>
    </view>
    <!-- 搜索 -->
    <view class="goods-content" v-if="isShowSeachGoods">
      <view class="navbar">
        <view class="nav-item" :class="{ current: filterIndex === 0 }" @click="tabClick(0)">综合排序</view>
        <view class="nav-item" :class="{ current: filterIndex === 3 }" @click="tabClick(3, 'buyCount')">
          <text>销量</text>
          <view class="p-box">
            <view class="index-nav-arrow">
              <image class="img" src="/static/index/arrow-up-1.png"
                v-if="params.sort === 'buyCount' && params.order === 'asc'" mode="aspectFit"></image>
              <image class="img" src="/static/index/arrow-up.png" v-else mode="aspectFit"></image>
            </view>
            <view class="index-nav-arrow">
              <image class="img" src="/static/index/arrow-down.png"
                v-if="params.sort === 'buyCount' && params.order === 'desc'" mode="aspectFit"></image>
              <image class="img" src="/static/index/arrow-down-1.png" v-else mode="aspectFit"></image>
            </view>
          </view>
        </view>
        <view class="nav-item" :class="{ current: filterIndex === 4 }" @click="tabClick(4, 'price')">
          <text>价格</text>
          <view class="p-box">
            <view class="index-nav-arrow">
              <image class="img" src="/static/index/arrow-up-1.png"
                v-if="params.sort === 'price' && params.order === 'asc'" mode="aspectFit"></image>
              <image class="img" src="/static/index/arrow-up.png" v-else mode="aspectFit"></image>
            </view>
            <view class="index-nav-arrow">
              <image class="img" src="/static/index/arrow-down.png"
                v-if="params.sort === 'price' && params.order === 'desc'" mode="aspectFit"></image>
              <image class="img" src="/static/index/arrow-down-1.png" v-else mode="aspectFit"></image>
            </view>
          </view>
        </view>
        <view class="nav-item" @click="sortGoods">筛选</view>
      </view>
      <!-- 一行一个商品展示 -->
      <div v-if="isSWitch">
        <scroll-view :style="{ height: goodsHeight }" enableBackToTop="true" lower-threshold="250"
          @scrolltolower="loadmore()" scroll-with-animation scroll-y class="scoll-page">
          <goodsList :res='goodsList' type='oneColumns' :keyword='keyword' />
          <uni-load-more :status="loadingType" @loadmore="loadmore()"></uni-load-more>
        </scroll-view>
      </div>
      <!-- 一行两个商品展示 -->
      <div v-if="
          !isSWitch &&
          !(goodsList == [] || goodsList == '' || goodsList == null)
        ">
        <scroll-view :style="{ height: goodsHeight }" scroll-anchoring enableBackToTop="true"
          @scrolltolower="loadmore()" scroll-with-animation scroll-y lower-threshold="250" class="scoll-page">
					<goodsList :res='goodsList' :keyword='keyword' />
          <uni-load-more :status="loadingType"></uni-load-more>
        </scroll-view>
      </div>
    </view>

    <u-popup border-radius="20" mode="right" width="90%" v-model="sortPopup">
      <view class="status_bar"></view>
      <view class="sort-box  ">
        <view class="sort-list">
          <view class="sort-item">
            <view class="sort-title"> 品牌 </view>
            <view class="flex" v-if="sortData.brands">
              <view class="sort-brand-item" :key="brandsIndex" v-for="(brand, brandsIndex) in sortData.brands"
                @click="handleSort(brand, brandsIndex, 'brand')">
                <view class="sort-radius" :class="{
                    'sort-active': brand.__selected,
                  }">
                  {{ brand.name }}
                </view>
              </view>
            </view>
            <!-- <u-empty v-else text="暂无品牌" mode="list"></u-empty> -->
          </view>
          <view class="sort-item">
            <view class="sort-title"> 全部分类 </view>
            <view class="flex" style="flex-wrap: wrap;" v-if="sortData.categories">
              <view class="sort-brand-item" :key="categoriesIndex"
                v-for="(categoryId, categoriesIndex) in sortData.categories"
                @click="handleSort(categoryId, categoriesIndex, 'categoryId')">
                <view class="sort-radius" :class="{
                    'sort-active': categoryId.__selected,
                  }">
                  {{ categoryId.name }}
                </view>
              </view>
            </view>
            <!-- <u-empty v-else text="暂无分类" mode="list"></u-empty> -->
          </view>
        </view>
        <view class="sort-list">
          <view class="sort-item">
            <view class="sort-title"> 价格区间 </view>
            <view style="display:flex;  margin-top:20rpx;    align-items: center;">
              <view class="sort-brand-item uinput">
                <view class="sort-radius">
                  <u-input v-model="minPrice" type="number" placeholder="最低价" input-align="center" />
                </view>
              </view>
              <view>-</view>
              <view class="sort-brand-item uinput">
                <view class="sort-radius">
                  <u-input v-model="maxPrice" type="number" placeholder="最高价" input-align="center" />
                </view>
              </view>
            </view>
          </view>
        </view>

        <view class="sort-list" v-if="sortData.paramOptions">
          <view class="sort-item" :key="paramIndex" v-for="(param, paramIndex) in sortData.paramOptions">
            <view class="sort-title"> {{ param.key }} </view>
            <view class="flex" style="flex-warp:warp" v-if="param.values">
              <view class="sort-brand-item" :key="i" v-for="(value, i) in param.values"
                @click="handleSort(value, i, 'prop', param)">
                <view class="sort-radius" :class="{
                    'sort-active': value.__selected,
                  }">
                  {{ value.title }}
                </view>
              </view>
            </view>
          </view>
        </view>

        <div class="null-view"></div>
        <view class="sort-btn mp-iphonex-bottom">
          <view class="sort-btn-repick" @click="repick">重置</view>
          <view class="sort-btn-confim" @click="sortConfim">确定</view>
        </view>
      </view>
    </u-popup>
	<div class="empty" v-if="empty">
		<view>
			<image style="width: 320rpx; height: 240rpx" src="/static/nodata.png">
	
			</image>
		</view>
		<view>
			<p>没有找到相关的商品信息</p>
			<p>请换一个关键词试试吧</p>
		</view>
	</div>
    <u-back-top :scroll-top="scrollTop"></u-back-top>
  </view>
</template>

<script>
import { getGoodsList, getGoodsRelated } from "@/api/goods.js";
import goodsList from '@/components/m-goods-list/list.vue'
import { getHotKeywords } from "@/api/home.js";
import mSearch from "@/components/m-search-revision/m-search-revision.vue";
import storage from "@/utils/storage";
export default {
  data() {
    return {
	  empty:false,
      scrollTop: 0,
      loadIndex: 10,
      oldKeywordIndex: 0,
      selectedWay: {
        brand: [],
        categoryId: [],
        prop: [],
      },

      sortPopup: false, //筛选的开关
      navObj: {
        background: "#fff",
      },
      typeSortData: {
        type: "",
        index: "",
      },
      goodsHeight: "",
      defaultKeyword: "",
      keyword: "",
      oldKeywordList: [],
      hotKeywordList: [],
      keywordList: [],
      goodsList: [],

      cateMaskState: 0, //分类面板展开状态
      loadingType: "more", //加载更多状态
      filterIndex: 0,
      cateId: 0, //已选三级分类id
      priceOrder: 0, //1 价格从低到高 2价格从高到低
      cateList: [],
      isShowSeachGoods: false,
      isShowKeywordList: false,
      sortData: "",
      isSWitch: false,

      params: {
        pageNumber: 1,
        pageSize: 10,
        // sort: 'grade_asc',
      
        keyword: "",
      },
      minPrice: "",
      maxPrice: "",
      sortParams: {
        pageNumber: 1,
        pageSize: 10,

        // price: "", //价格,示例值(10_30)
        // prop: "", //属性:参数名_参数值@参数名_参数值,示例值(屏幕类型_LED@屏幕尺寸_15英寸)
        // brandId:"", //品牌,可以多选 品牌Id@品牌Id@品牌Id
        categoryId: "",
      },

      routerVal: "",
    };
  },
	
  onPageScroll(e) {
    console.log(e);
    this.scrollTop = e.scrollTop;
  },
  onLoad(val) {
    this.init();
    //  this.initSortGoods();
    // 接收分类的数据

    this.routerVal = val;

    // 有值
    if (this.routerVal.category) {
      this.params.categoryId = this.routerVal.category;
      this.sortParams.categoryId = this.routerVal.category;
      this.isShowSeachGoods = true;
      this.$nextTick(()=>{
          this.$refs.mSearch.isShowSeachGoods = true;
      })
    }
    if (this.routerVal.keyword) {
      this.params.keyword = this.routerVal.keyword;
      this.isShowSeachGoods = true;
    }
    if (this.routerVal.storeId) {
      this.params.storeId = this.routerVal.storeId;
      this.isShowSeachGoods = true;
    }
    this.loadData();
  },
  components: {
    mSearch,
		goodsList
  },
  watch: {
    /**
     * 将搜索的字和热词进行匹配,如果为热词则不改商品搜索关键字
     */
    keyword(val) {
      if (val) {
        if (val) {
          this.defaultKeyword = val;
        }
      } else {
        this.defaultKeyword = "请输入搜索商品";
      }
    },
    sortPopup(val) {
      if (val) {
        this.selectedWay = { brand: [], categoryId: [], prop: [] };
        console.log(this.selectedWay);
      }
    },
  },

  onReachBottom() {
    this.params.pageNumber++;
    this.loadData();
  },

  mounted() {
    const { windowWidth, windowHeight } = uni.getSystemInfoSync();

    let topHeight = 0;
    let navHeight = 0;

    uni.getSystemInfo({
      success: function (res) {
        // res - 各种参数

        let top = uni.createSelectorQuery().select(".u-navbar");
        top
          .boundingClientRect(function (data) {
            if (data && data.height) {
              //data - 各种参数
              topHeight = data.height; // 获取元素宽度
            }
          })
          .exec();
        let nav = uni.createSelectorQuery().select(".navbar");
        nav
          .boundingClientRect(function (data) {
            if (data && data.height) {
              //data - 各种参数
              navHeight = data.height; // 获取元素宽度
            }
          })
          .exec();
      },
    });
    this.goodsHeight = windowHeight - navHeight - topHeight;
    // #ifdef APP-PLUS
    this.goodsHeight = this.goodsHeight - 100;
    // #endif
    this.goodsHeight += "px";
  },

  methods: {
    // 数据去重一下 只显示一次 减免 劵 什么的
    getPromotion(item) {
      if (item.promotionMap) {
        let array = [];
        Object.keys(item.promotionMap).forEach((child) => {
          if (!array.includes(child.split("-")[0])) {
            array.push(child.split("-")[0]);
          }
        });

        return array;
      }
    },
    // 展示更多数据
    showMore() {
      this.loadOldKeyword(this.oldKeywordIndex);
    },

    // 点击确定进行筛选
    sortConfim() {
      // 处理品牌（多选
      if (!this.params.brandId) {
        this.params.brandId = [];
      } else {
        this.params.brandId = [this.params.brandId];
      }

      // 如果选中品牌 赋值
      this.selectedWay["brand"].forEach((item) => {
        if (item.__selected) {
          this.params.brandId.push(item.value);
        }
      });

      this.params.brandId = this.params.brandId.join("@") || "";

      console.log(this.params.brandId);
      // 处理分类 (单选)
      if (this.selectedWay["categoryId"][0]) {
        this.params.categoryId = this.selectedWay["categoryId"][0].value;
      }
      if (!this.params.prop) {
        this.params.prop = [];
      } else {
        this.params.prop = [this.params.prop];
      }
     
      this.selectedWay["prop"].forEach((item) => {
        if (item.__selected) {
          this.params.prop.push(`${item.parent}_${item.title}`);
        }
      });
      this.params.prop = this.params.prop.join("@");
      // 处理价格
      if (this.minPrice || this.maxPrice) {
        this.params.price = `${this.minPrice}_${this.maxPrice}`;
      } else {
        this.params.price = 0;
      }

      this.goodsList = [];
      
      this.params.pageNumber = 1;
      this.sortParams = this.params;

     
      this.loadData();
      this.sortPopup = false;
    },

    // 重置
    repick() {
      this.sortParams = {
        pageNumber: 1,
        pageSize: 10,
        categoryId: this.routerVal.category || "",
      };
      this.sortPopup = false;
      this.initSortGoods();
      this.minPrice = "";
      this.maxPrice = "";
      this.params = {
        pageNumber: 1,
        pageSize: 10,
        categoryId: this.routerVal.category || "",
      };
      this.goodsList = [];
      this.loadData();
    },

    // 点击筛选的内容
    handleSort(val, index, type, parent) {
      if (type == "prop") {
        val.parent = parent.key;
      }
      this.selectedWay[type].push(val);
      if (type == "categoryId") {
        this.sortData.categories.forEach((item) => {
          item.__selected = false;
        });
        val.__selected = true;
      } else {
        val.__selected ? (val.__selected = false) : (val.__selected = true);
      }
    },

    init() {
      // 加载搜索记录
      this.loadOldKeyword(this.loadIndex);
      // 加载热词
      this.loadHotKeyword();
    },
    blur() {
      uni.hideKeyboard();
    },
    back() {
      uni.navigateBack({
        delta: 1,
      });
    },
    // 跳转到商品详情
    navigateToDetailPage(item) {
      uni.navigateTo({
        url: `/pages/product/goods?id=${item.content.id}&goodsId=${item.content.goodsId}`,
      });
    },
    // 跳转地址
    navigateToStoreDetailPage(item) {
      uni.navigateTo({
        url: `/pages/product/shopPage?id=${item.content.storeId}`,
      });
    },
    loadmore() {
      this.params.pageNumber++;
      this.loadData();
    },
    initSortGoods() {
      getGoodsRelated(this.sortParams).then((res) => {
        if (res.data.success) {
          for (let item of Object.keys(res.data.result)) {
            res.data.result[item].forEach((child) => {
              child.__selected = false;

              // 循环出和品牌分类一样的数据格式
              if (child.values) {
                child.values = child.values.map((item) => ({
                  title: item,
                  __selected: false,
                }));
              }
            });
          }
          this.sortData = res.data.result;
        }
      });
    },

    // 筛选商品
    sortGoods() {
      this.sortPopup = true;
    },

    tabClick(index, type) {
      this.params.pageNumber = 1;
      this.params.pageSize = 10;
      // this.params.order = "desc";
      if (this.params.sort == type) {
        this.params.order == "asc"
          ? (this.params.order = "desc")
          : (this.params.order = "asc");

        this.$set(this.params, "sort", type);
      } else {
        this.params.order = "desc";
        this.$set(this.params, "sort", type);
      }

      if (index == 0) {
        this.params.sort = "releaseTime";
        this.params.order = "desc";
      }

      this.filterIndex = index;

      uni.pageScrollTo({
        duration: 300,
        scrollTop: 0,
      });
      this.loadData("refresh", 1);
      uni.showLoading({
        title: "正在加载",
      });
    },
    //加载默认搜索关键字
    loadDefaultKeyword() {
      /**
       * 定义默认搜索关键字会根据当前热门搜索来进行显示
       * 如果当前热门搜索没有的话，则会显示默认关键字
       */
      if (this.hotKeywordList.length != 0) {
        //
        this.defaultKeyword = this.hotKeywordList[0];
      } else {
        this.defaultKeyword = "请输入搜索商品";
      }
    },
    //加载历史搜索,自动读取本地Storage
    loadOldKeyword(index) {
      this.oldKeywordList = [];
      uni.getStorage({
        key: "OldKeys",
        success: (res) => {
          var OldKeys = JSON.parse(res.data);
          this.oldKeywordIndex = OldKeys.length;
          for (let i = 0; i < index; i++) {
            this.oldKeywordList.push(OldKeys[i]);
          }
        },
      });
    },

    /**
     * 加载热门搜索
     * 1.5分钟之后更新缓存
     * 2.如果有缓存热门关键字则去请求缓存
     */
    async loadHotKeyword() {
      this.hotKeywordList = [];
      if (
        !storage.getHotWords().time ||
        storage.getHotWords().time <= new Date().getTime() / 1000
      ) {
        // 没有缓存或者第一次进入请求接口保存缓存
        let res = await getHotKeywords(10);
        let keywords = res.data.result;

        keywords.forEach((item) => {
          this.hotKeywordList.push(item);
        });

        let hotData = {
          time: new Date().getTime() / 1000 + 30 * 5,
          keywords: keywords,
        };
        storage.setHotWords(hotData);
      } else {
        let keywords = storage.getHotWords().keywords;

        keywords.forEach((item) => {
          this.hotKeywordList.push(item);
        });
      }
      this.loadDefaultKeyword();
    },
    //加载商品 ，带下拉刷新和上滑加载
    async loadData(type, loading) {
      this.loadingType = "loading";
      if (type == "refresh") {
        this.goodsList = [];
      }
      //没有更多直接返回 #TODO
      let goodsList = await getGoodsList(this.params);

      if (goodsList.data.result.content.length < 10) {
		  this.loadingType = "noMore";
		  this.empty = true
	    } else {
		  this.empty = false
	    }
      this.goodsList.push(...goodsList.data.result.content);
      this.initSortGoods();
      uni.hideLoading();
    },

    //高亮关键字
    drawCorrelativeKeyword(keywords, keyword) {
      var len = keywords.length,
        keywordArr = [];
      for (var i = 0; i < len; i++) {
        var row = keywords[i];
        //定义高亮#9f9f9f
        var html = row[0].replace(
          keyword,
          "<span style='color: #9f9f9f;'>" + keyword + "</span>"
        );
        html = "<div>" + html + "</div>";
        var tmpObj = {
          keyword: row[0],
          htmlStr: html,
        };
        keywordArr.push(tmpObj);
      }
      return keywordArr;
    },
    //顶置关键字
    setKeyword(index) {
      this.keyword = this.keywordList[index].keyword;
    },
    //清除历史搜索
    oldDelete() {
      uni.showModal({
        content: "确定清除历史搜索记录？",
        success: (res) => {
          if (res.confirm) {
            this.oldKeywordList = [];
            uni.removeStorage({
              key: "OldKeys",
            });
          }
        },
      });
    },

    // 样式修改布局
    doSearchSwitch() {
      this.isSWitch = !this.isSWitch;
      this.isShowSeachGoods = true;
			this.params.pageNumber = 1 
			this.params.pageSize = 10
			this.loadData("refresh", 1);
    },

    /**
     * 执行搜索
     */
    doSearch(keyword) {
      //  用户自行搜索/热门搜索/搜索历史
      keyword = keyword === false ? this.keyword : keyword;

      if (!keyword) {
        /**
         * 进行空搜索
         * 第一次搜索如果没有关键词会将热门搜索中第一个热词进行判定
         * 如果没有热词则会展示一个空词搜索
         */
        keyword = (this.hotKeywordList.length && this.hotKeywordList[0]) || "";
      }
      this.defaultKeyword == "请输入搜索商品" ? (keyword = "") : "";
      // this.keyword = keyword;
      keyword ? (this.keyword = keyword) : "";
      this.saveKeyword(keyword); //保存为历史
      this.isShowSeachGoods = true;
      this.$refs.mSearch.isShowSeachGoods = true;
      this.params.keyword = this.keyword;
      this.params.pageNumber = 1;
      this.$set(this.sortParams, "keyword", keyword);
      this.loadData("refresh", 1);
    },
    //保存关键字到历史记录
    saveKeyword(keyword) {
      if (!keyword) return false;
      uni.getStorage({
        key: "OldKeys",
        success: (res) => {
          var OldKeys = JSON.parse(res.data);
          var findIndex = OldKeys.indexOf(keyword);
          if (findIndex == -1) {
            OldKeys.unshift(keyword);
          } else {
            OldKeys.splice(findIndex, 1);
            OldKeys.unshift(keyword);
          }
          //最多10个纪录
          OldKeys.length > 10 && OldKeys.pop();

          uni.setStorage({
            key: "OldKeys",
            data: JSON.stringify(OldKeys),
          });
          this.oldKeywordList = OldKeys; //更新历史搜索
        },
        fail: (e) => {
          var OldKeys = [keyword];
          uni.setStorage({
            key: "OldKeys",
            data: JSON.stringify(OldKeys),
          });
          this.oldKeywordList = OldKeys; //更新历史搜索
        },
      });
    },
  },
};
</script>
<style lang="scss" scoped>
@import "./search.scss";
</style>