const app = getApp();
Page({
  data: {
    data_list_loding_status: 1,
    data_bottom_line_status: false,
    data_list: [],
    data_page_total: 0,
    data_page: 1,
    params: null,
    post_data: {},
    is_show_popup_form: false,
    popup_form_loading_status: false,
    search_nav_sort_list: [
      { name: "综合", field: "default", sort: "asc", "icon": null },
      { name: "销量", field: "sales_count", sort: "asc", "icon": "default" },
      { name: "价格", field: "min_price", sort: "asc", "icon": "default" },
    ],
  },

  onLoad(params) {
    this.setData({params: params, post_data: params});
    this.init();
  },

  onShow() {
    wx.setNavigationBarTitle({title: app.data.common_pages_title.goods_search});
  },

  // 初始化
  init() {
    // 获取数据
    this.get_data_list();
  },

  // 搜索
  search_event() {
    this.setData({
      data_list: [],
      data_page: 1
    });
    this.get_data_list(1);
  },

  // 获取数据列表
  get_data_list(is_mandatory) {
    // 分页是否还有数据
    if ((is_mandatory || 0) == 0) {
      if (this.data.data_bottom_line_status == true) {
        return false;
      }
    }

    // 加载loding
    wx.showLoading({title: "加载中..." });
    this.setData({
      data_list_loding_status: 1
    });

    // 参数
    var params = this.data.params;
    var post_data = this.data.post_data;
    post_data['page'] = this.data.data_page;
    post_data['category_id'] = params['category_id'] || 0;

    // 获取数据
    wx.request({
      url: app.get_request_url("index", "search"),
      method: "POST",
      data: post_data,
      dataType: "json",
      header: { 'content-type': 'application/x-www-form-urlencoded' },
      success: res => {
        wx.hideLoading();
        wx.stopPullDownRefresh();
        if (res.data.code == 0) {
          if (res.data.data.data.length > 0) {
            if (this.data.data_page <= 1) {
              var temp_data_list = res.data.data.data;
            } else {
              var temp_data_list = this.data.data_list;
              var temp_data = res.data.data.data;
              for (var i in temp_data) {
                temp_data_list.push(temp_data[i]);
              }
            }
            this.setData({
              data_list: temp_data_list,
              data_total: res.data.data.total,
              data_page_total: res.data.data.page_total,
              data_list_loding_status: 3,
              data_page: this.data.data_page + 1
            });

            // 是否还有数据
            if (this.data.data_page > 1 && this.data.data_page > this.data.data_page_total)
            {
              this.setData({ data_bottom_line_status: true });
            } else {
              this.setData({data_bottom_line_status: false});
            }
          } else {
            this.setData({
              data_list_loding_status: 0,
            });
            if (this.data.data_page <= 1) {
              this.setData({
                data_list: [],
                data_bottom_line_status: false,
              });
            }
          }
        } else {
          this.setData({
            data_list_loding_status: 0
          });

          app.showToast(res.data.msg);
        }
      },
      fail: () => {
        wx.hideLoading();
        wx.stopPullDownRefresh();

        this.setData({
          data_list_loding_status: 2
        });
        app.showToast("服务器请求出错");
      }
    });
  },

  // 下拉刷新
  onPullDownRefresh() {
    this.setData({
      data_page: 1
    });
    this.get_data_list(1);
  },

  // 滚动加载
  scroll_lower(e) {
    this.get_data_list();
  },

  // 搜索条件
  form_submit_event(e) {
    this.setData({ post_data: e.detail.value, data_page: 1});
    this.popup_form_event_close();
    this.get_data_list(1);
  },

  // 筛选条件关闭
  popup_form_event_close(e) {
    this.setData({ is_show_popup_form: false});
  },

  // 筛选条件开启
  popup_form_event_show(e) {
    this.setData({ is_show_popup_form: true });
  },

  // 筛选
  nav_sort_event(e) {
    var index = e.currentTarget.dataset.index || 0;
    var temp_post_data = this.data.post_data;
    var temp_search_nav_sort = this.data.search_nav_sort_list;
    var temp_sort = (temp_search_nav_sort[index]['sort'] == 'desc') ? 'asc' : 'desc';
    for (var i in temp_search_nav_sort) {
      if(i != index) {
        if (temp_search_nav_sort[i]['icon'] != null) {
          temp_search_nav_sort[i]['icon'] = 'default';
        }
        temp_search_nav_sort[i]['sort'] = 'desc';
      }
    }

    temp_search_nav_sort[index]['sort'] = temp_sort;
    if (temp_search_nav_sort[index]['icon'] != null) {
      temp_search_nav_sort[index]['icon'] = temp_sort;
    }

    temp_post_data['order_by_field'] = temp_search_nav_sort[index]['field'];
    temp_post_data['order_by_type'] = temp_sort;

    this.setData({
      post_data: temp_post_data,
      search_nav_sort_list: temp_search_nav_sort,
      data_page: 1,
    });
    this.get_data_list(1);
  },
});
