const app = getApp();
Page({
  data: {
    data_list: [],
    data_page_total: 0,
    data_page: 1,
    data_list_loding_status: 1,
    data_bottom_line_status: false
  },

  onLoad() {
    this.get_data_list();
  },

  onShow() {
    tt.setNavigationBarTitle({title: app.data.common_pages_title.answer_list});
  },

  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
    this.setData({
      data_list_loding_status: 1
    });

    // 获取数据
    tt.request({
      url: app.get_request_url("common", "answer"),
      method: "POST",
      data: {
        page: this.data.data_page
      },
      dataType: "json",
      header: { 'content-type': 'application/x-www-form-urlencoded' },
      success: res => {
        tt.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
            });
          }
        } else {
          this.setData({
            data_list_loding_status: 0
          });

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

  // 头像加载错误
  user_avatar_error(e) {
    var index = e.currentTarget.dataset.index || 0;
    var temp_data_list = this.data_list;
    for(var i in temp_data_list)
    {
      if(i == index)
      {
        temp_data_list[i]['avatar'] = app.data.default_user_head_src
      }
    }
    this.setData({data_list: temp_data_list});
  },

});