const app = getApp();
Page({
  data: {
    tidings:[],
    current: 0,
    list:[
      {text:"全部", type:""},
      {text:"课堂提醒",type:"course"},      
      {text:"审核",type:"apply"},
      {text:"通知", type:"notice"},
      {text:"互动提醒", type:"interaction"},
    ]
  },
  onTapMessage(){
    let tidings = this.data.tidings.filter(i=>{
      return i.tiding_type =='Apply'&&i.status==0
    });
    if(this.data.course_apply_count==tidings.length){
      var flag = true;
      var course_id = tidings[0].belong_container_id;
      for(var k=1;k<tidings.length;k++){
        flag = flag&&(course_id == tidings[k].belong_container_id);
      }
      if(flag){
        app.navigateTo({
          url:`{teacher_apply}?course_id=${course_id}`
        })
      }
      else
        this.setData({current:2});
    }else
      this.setData({current: 2});
  },
  changeType({detail:{current, value}}){
    this.options.type=value.type;
    this.refresh({refresh:1})
    .then(res=>{
      this.setData({scrollTop:0});
    });
  },
  refresh({refresh=0, showError=1}={}){
    if(refresh){
      this.setData({ loading: 1 });
      if(refresh==1){
        this.options.page=1;
        var { options } = this;
      }else if(refresh==2){
        var { per_page, page, type} = this.options;
        var options = {per_page:per_page*page, page:1, type};
      }
    }else{
      this.options.page++;
      var {options} = this;
    }
    return app.api("users.tidings")(options).then(res => {
      let {tidings, course_apply_count} = res;
      if(!refresh)
        tidings = this.data.tidings.concat(tidings);
      this.setData({ tidings,course_apply_count ,loading:0});
      return res;
    }).catch(e=>{
      if(e.code==401&&refresh)
        this.setData({tidings:[]});
      if(showError)
        app.showError(e);
      this.setData({loading:0});
      return e;
    })
  },
  onLoad: function (options) {
    let key = `cache-users.tidings-${app.user().user_id}`;
    let cache_tidings = wx.getStorageSync(key);
    if(cache_tidings)
      this.setData({tidings: cache_tidings});
    this.options = { page: 1, per_page: 10 };
    this.refresh({refresh:1}).then(res=>{
      console.log("pull", res);
      this.loaded = 1;
      if(res.tidings)
        wx.setStorageSync(key, res.tidings);
    })
  },
  _onReachBottom(){
    this.refresh();
  },
  onShow: function () {
    let index = 2;
    if(this.loaded)
      this.refresh({refresh:2, showError:0})
    wx.hideTabBarRedDot({index});
    wx.removeTabBarBadge({index});
  },

  onPullDownRefresh: function () {
    this.refresh({refresh:2});
  },

  onShareAppMessage: function () {

  }
})