import {API_HOST, SERVICE_HOST} from '../../libs/config';
import {GET, POST} from '../../libs/request';
import {parseBrandListData, cancelFilterSelectState} from '../../utils/productList';
import {getChannelCode, getGenderCode, getRecPosCode, getRecommandContentCode} from '../../utils/home';
import objectAssign from '../../vendors/object-assign';

import {
  logEvent,
  YB_PAGE_OPEN_L,
} from '../../libs/analytics.js'

//获取应用实例
let app = getApp()

const  windowWidth = app.globalData.systemInfo.windowWidth;
const  windowHeight = app.globalData.systemInfo.windowHeight;

const DEVICE_WIDTH_RATIO = windowWidth / 320;

let listWidth = Math.ceil(137.5 * DEVICE_WIDTH_RATIO);
let listHeight = Math.ceil(254 * DEVICE_WIDTH_RATIO);

const IMAGE_WIDTH = 145;
const IMAGE_HEIGHT = 193;
const IMAGE_RATIO = IMAGE_HEIGHT / IMAGE_WIDTH;
let listImageTop = 31;
let listImageWidth = listWidth;
let listImageHeight = Math.ceil(listWidth * IMAGE_RATIO);

let listMarginHorizontal = (windowWidth - listWidth * 2) / 3;
let PV_ID = new Date().getTime() + '';

Page({
  data:{
    windowWidth,
    windowHeight,
    listWidth,
    listHeight,
    listImageWidth,
    listImageHeight,
    listImageTop,
    listMarginHorizontal,

    status: 0, // 0-search keyword, 1-fuzzy search, 2-product list

    keyword: '',

    order: '',

    from_page_name: '',
    from_page_param: '',
    current_page_name: 'search',
    current_page_param: '',


    isChangedQuery: false,
    terms_suggestion: [],
    suggestion_query: '',


    hotKeyword: {
      isLoading: false,
      error: null,
      data: null,
    },

    fuzzySearch: {
      isLoading: false,
      error: null,
      data: null,
    },

    searchHistory: [],

    list: {
      isLoading: false,
      error: null,
      data: null,
      pageSize: 60,
      currentPage: 0,
      pageCount: 0,
      total: 0,
      endReached: false,
    },

    filter: {
      item1: {
        key: 'item1',
        name: '默认',
        asc: '',
        isRadio: true,
        selected: true,
      },
      item2: {
        key: 'item2',
        name: '新品',
        asc: 's_t_desc',
        isRadio: true,
        selected: false,
      },
      item3: {
        key: 'item3',
        name: '价格',
        defaults: 'asc',
        asc: 's_p_asc',
        desc: 's_p_desc',
        isRadio: false,
        isAsc: true,
        selected: false,
      },
      item4: {
        key: 'item4',
        name: '折扣',
        defaults: 'desc',
        asc: 'p_d_desc',
        desc: 'p_d_asc',
        isRadio: false,
        isAsc: false,
        selected: false,
      },
    },
    filterGenderItem: {
      key: 'filterGenderItem',
      name: '男生',
      isRadio: true,
      selected: true,
      hiddenGenderSelectView: true,
    },
    genderFilter: {
      item1: {
        key: 'item1',
        name: '男生/BOYS',
        selected: true,
        value: '1',
        title: '男生',
      },
      item2: {
        key: 'item2',
        name: '女生/GIRLS',
        selected: false,
        value: '2',
        title: '女生',
      }
    },
  },

  resetChannelFilterInfo: function (gender) {
    let filterGenderItem = this.data.filterGenderItem;
    let genderFilter = this.data.genderFilter;
    filterGenderItem.name = gender;
    for (let itemKey in genderFilter) {
      if (genderFilter.hasOwnProperty(itemKey)) {
        if (genderFilter[itemKey].title == gender) {
          genderFilter[itemKey].selected = true;
        } else {
          genderFilter[itemKey].selected = false;
        }
      }
    }
    this.setData({ filterGenderItem, genderFilter });
  },

  onLoad:function(options){
    // 生命周期函数--监听页面加载
    var that = this
    let from_page_name = options.page_name ? options.page_name : '';
    let from_page_param = options.page_param ? options.page_param : '';
    this.setData({from_page_name, from_page_param});

    var pages = getCurrentPages()
    var currentPage = pages[pages.length - 1]
    var url = currentPage.route

    let params = {
      PAGE_NAME: that.data.current_page_name,
      PAGE_PARAM: that.data.current_page_param,
      FROM_PAGE_NAME: that.data.from_page_name,
      FROM_PAGE_PARAM: that.data.from_page_param,
      PV_ID: PV_ID,
      PAGE_PATH: url        
    };
    logEvent(YB_PAGE_OPEN_L, params);

    this.fetchHotKeyword();
  },
  onReady:function(){
    // 生命周期函数--监听页面初次渲染完成

  },
  onShow:function(){
    // 生命周期函数--监听页面显示

  },
  onHide:function(){
    // 生命周期函数--监听页面隐藏

  },
  onUnload:function(){
    // 生命周期函数--监听页面卸载

  },
  onPullDownRefresh: function() {
    // 页面相关事件处理函数--监听用户下拉动作
    var that = this
    let params = {
      PAGE_NAME: that.data.current_page_name,
      PAGE_PARAM: that.data.current_page_param,
      FROM_PAGE_NAME: that.data.from_page_name,
      FROM_PAGE_PARAM: that.data.from_page_param,
      PV_ID: PV_ID,
    };
    logEvent(YB_PAGE_OPEN_L, params);
  },
  onReachBottom: function() {
    // 页面上拉触底事件的处理函数

    this.fetchListData();
  },

  //搜索框文字改变
  inputChanged: function(event) {
    let keyword = event.detail.value;
    let status = keyword ? 1 : 0;
    
    this.setData({status, keyword});

    this.fuzzySearchList();
  },

  //搜索框获取焦点焦点
  focusChanged: function(event) {
    let status = this.data.keyword ? 1 : 0;
    
    this.setData({status});

    this.fuzzySearchList();
  },

  //搜索框键盘点击确定
  inputConfirmed: function(event) {
    let keyword = event.detail.value;
    let newList = objectAssign(this.data.list, {currentPage: 0, pageCount: 0, total: 0, endReached: false,});
    let newFilter = {
      item1: objectAssign(this.data.filter.item1, {selected: true}),
      item2: objectAssign(this.data.filter.item2, {selected: false}),
      item3: objectAssign(this.data.filter.item3, { selected: false }),
      item4: objectAssign(this.data.filter.item4, { selected: false }),
    };
    
    this.setData({status: 2, keyword, list: newList, filter: newFilter, order: ''});
    let paramters = {
      PAGE_NAME: 'searchResult',
      PAGE_PARAM: keyword ? keyword : '',
      FROM_PAGE_NAME: this.data.from_page_name,
      FROM_PAGE_PARAM: this.data.from_page_param,
      PV_ID: PV_ID,
    };
    logEvent(YB_PAGE_OPEN_L, paramters);
    this.fetchListData();
  },

  //热门搜索点击
  hotKeywordItemTapped: function(event) {
    let keyword = event.currentTarget.dataset.keyword;
    let newList = objectAssign(this.data.list, {currentPage: 0, pageCount: 0, total: 0, endReached: false,});
    let newFilter = {
      item1: objectAssign(this.data.filter.item1, {selected: true}),
      item2: objectAssign(this.data.filter.item2, {selected: false}),
      item3: objectAssign(this.data.filter.item3, { selected: false }),
      item4: objectAssign(this.data.filter.item4, { selected: false }),
    };
    
    this.setData({status: 2, keyword, list: newList, filter: newFilter, order: ''});
    let paramters = {
      PAGE_NAME: 'searchResult',
      PAGE_PARAM: keyword ? keyword : '',
      FROM_PAGE_NAME: this.data.from_page_name,
      FROM_PAGE_PARAM: this.data.from_page_param,
      PV_ID: PV_ID,
    };
    logEvent(YB_PAGE_OPEN_L, paramters);
    this.fetchListData();
  },

  //点击模糊搜索出来的条目
  fuzzySearchItemTapped: function(event) {
    let keyword = event.currentTarget.dataset.keyword;
    let newList = objectAssign(this.data.list, {currentPage: 0, pageCount: 0, total: 0, endReached: false,});
    let newFilter = {
      item1: objectAssign(this.data.filter.item1, {selected: true}),
      item2: objectAssign(this.data.filter.item2, {selected: false}),
      item3: objectAssign(this.data.filter.item3, { selected: false }),
      item4: objectAssign(this.data.filter.item4, { selected: false }),
    };
    
    this.setData({status: 2, keyword, list: newList, filter: newFilter, order: ''});
    let paramters = {
      PAGE_NAME: 'searchResult',
      PAGE_PARAM: keyword ? keyword : '',
      FROM_PAGE_NAME: this.data.from_page_name,
      FROM_PAGE_PARAM: this.data.from_page_param,
      PV_ID: PV_ID,
    };
    logEvent(YB_PAGE_OPEN_L, paramters);
    this.fetchListData();
  },

  //取消登录
  cancelSearch: function(event) {
    wx.navigateBack({
      delta: 1
    });
  },

  //点击筛选
  //点击筛选
  filterTapped: function (event) {
    let data = event.currentTarget.dataset;
    let key = data.key;

    let item = this.data.filter[key];
    // 单选
    if (item.isRadio) {
      // 已选中 结束
      if (item.selected) {
        return;
      }

      // 选中当前filter
      item.selected = true;

      // 遍历所有filter，设置非当前filter为不选中
      let newFilters = cancelFilterSelectState(this.data.filter, key);
      newFilters[key] = item;

      let newList = objectAssign(this.data.list, { currentPage: 0, pageCount: 0, total: 0, endReached: false, });
      this.setData({ filter: newFilters, order: item.asc, list: newList });

      this.fetchListData();
      // 多选
    } else {

      // 已选中
      if (item.selected) {

        // 修改当前filter排序
        item.isAsc = !item.isAsc;
        let order = item.isAsc ? item.asc : item.desc;
        let newFilters = this.data.filter;
        newFilters[key] = item;

        let newList = objectAssign(this.data.list, { currentPage: 0, pageCount: 0, total: 0, endReached: false, });
        this.setData({ order, filter: newFilters, list: newList });

        this.fetchListData();
        // 未选中
      } else {

        // 选中当前filter
        item.selected = true;
        // 读取当前filter默认排序
        let defaultKey = item.defaults;
        let order = item[defaultKey];

        item.isAsc = defaultKey == 'asc';
        
        // 遍历所有filter，设置非当前filter为不选中
        let newFilters = cancelFilterSelectState(this.data.filter, key);
        newFilters[key] = item;

        let newList = objectAssign(this.data.list, { currentPage: 0, pageCount: 0, total: 0, endReached: false, });
        this.setData({ order, filter: newFilters, list: newList });

        this.fetchListData();
      }
    }
  },

  //商品点击进入商品详情
  productCellTapped: function(event) {
    let data = event.currentTarget.dataset;
    let productSkn = data.productSkn;
    wx.navigateTo({
      url: '../goodsDetail/goodsDetail?productSkn=' + productSkn + '&page_name=' + this.data.current_page_name + '&page_param=' + this.data.current_page_param
    });
  },

  //查询热搜词
  fetchHotKeyword: function() {
    let param = {
      method: 'app.search.getTerms',
    }
    let hotKeyword = objectAssign(this.data.hotKeyword, {isLoading: true});
    this.setData({hotKeyword});
    GET(API_HOST, param)
    .then(data => {
      if (!data || !data.code || data.code != 200) {
        let hotKeyword = objectAssign(this.data.hotKeyword, {isLoading: false, error: {code: data.code, message: data.message}});
        this.setData({hotKeyword});
        return;
      }

      let hotKeyword = objectAssign(this.data.hotKeyword, {isLoading: false, error: null, data: data.data.hotTerms});
      this.setData({hotKeyword});
    })
    .catch(error => {
      let hotKeyword = objectAssign(this.data.hotKeyword, {isLoading: false, error});
      this.setData({hotKeyword});
    });
  },

  //查询模糊搜索条目列表
  fuzzySearchList: function() {
    let param = {
      method: 'app.search.fuzzy',
      keyword: this.data.keyword,
    }
    let fuzzySearch = objectAssign(this.data.fuzzySearch, {isLoading: true});
    this.setData({fuzzySearch});
    GET(API_HOST, param)
    .then(data => {
      if (!data || !data.code || data.code != 200) {
        let fuzzySearch = objectAssign(this.data.fuzzySearch, {isLoading: false, error: {code: data.code, message: data.message}});
        this.setData({fuzzySearch});
        return;
      }

      let fuzzySearch = objectAssign(this.data.fuzzySearch, {isLoading: false, error: null, data: data.data});
      this.setData({fuzzySearch});
    })
    .catch(error => {
      let fuzzySearch = objectAssign(this.data.fuzzySearch, {isLoading: false, error});
      this.setData({fuzzySearch});
    });
	},

  //根据关键词，查询商品列表
  fetchListData: function() {
    if (this.data.list.isLoading || this.data.list.endReached) {
      return;
    }

    let page = this.data.list.currentPage + 1;
    let param = {
      method: 'app.search.li',
      query: this.data.keyword,
      new_filter: 1,
      order: this.data.order,
      page,
      limit: this.data.list.pageSize,gender: this.data.gender,
      gender: this.data.filterGenderItem.name == '男生'?'1,3':'2,3',
    }
    let list = objectAssign(this.data.list, {isLoading: true,});
    this.setData({list});
    GET(API_HOST, param)
    .then(json => {
      if (!json || !json.code || json.code != 200) {
        let list = objectAssign(this.data.list, {isLoading: false, error: {code: json.code, message: json.message}});
        this.setData({list});
        return;
      }
      
      json = json.data;

      let currentPage = json && json.page ? json.page : 1;
      let pageCount = json && json.page_total ? json.page_total : 0;
      let total = json && json.total ? json.total : 0;
      let endReached = currentPage == pageCount;


      let isChangedQuery = json && json.isChangedQuery && json.isChangedQuery=='Y' ? true : false;
      let terms_suggestion = json && json.suggestion && json.suggestion.terms_suggestion ? json.suggestion.terms_suggestion : [];
      let suggestion_query = json && json.suggestion_query ? json.suggestion_query : '';
      
      let data = json.product_list;
      data = parseBrandListData(data, listImageWidth, listImageHeight);

      if (currentPage > 1) {
        let oldList = this.data.list.data;
        data = [...oldList, ...data];
      }

      let newList = {
        isLoading: false,
        data,
        currentPage,
        pageCount,
        total,
        endReached,
      };
      let list = objectAssign(this.data.list, newList);
      this.setData({
        list,
        isChangedQuery,
        terms_suggestion,
        suggestion_query,
      });
    })
    .catch(error => {
      let list = objectAssign(this.data.list, {isLoading: false, error,});
      this.setData({list});
    });
	},
  hiddenGenderFilter: function (event) {
    let filterGenderItem = this.data.filterGenderItem;
    filterGenderItem.hiddenGenderSelectView = true;
    this.setData({ filterGenderItem });
  },
  filterGenderItemTapped: function (event) {
    let filterGenderItem = this.data.filterGenderItem;
    filterGenderItem.hiddenGenderSelectView = !filterGenderItem.hiddenGenderSelectView;
    this.setData({ filterGenderItem });
  },

  maskTouchStart: function (event) {
    this.hiddenGenderFilter();
  },
  genderFilterTapped: function (event) {
    let data = event.currentTarget.dataset;
    let key = data.key;
    let item = this.data.genderFilter[key];

    if (item.selected) {
      this.hiddenGenderFilter();
      return;
    }

    let filterGenderItem = this.data.filterGenderItem;
    filterGenderItem.name = item.title;
    // 选中当前filter
    item.selected = true;
    // 遍历所有filter，设置非当前filter为不选中
    let newFilters = cancelFilterSelectState(this.data.genderFilter, key);
    newFilters[key] = item;

    let newList = objectAssign(this.data.list, { currentPage: 0, pageCount: 0, total: 0, endReached: false, });
    this.setData({ filterGenderItem, genderFilter: newFilters, list: newList, gender: item.value });
    this.hiddenGenderFilter();
    this.fetchListData();

  }
})