const app = getApp();
Page({

  data: {
    selectCount: 0
  },

  onLoad: function (options) {
    let {subject_id} = options;
    this.setData({subject_id});
    this.pullShixuns();
  },
  onChange(e){
    let {detail:{value}} = e;
    this.setData({selectCount: value.length});
    if(this.length>value.length)
      this.setData({isSelectAll: false});
    else
      this.setData({isSelectAll: true});
    
  },
  onTapSelectAll(e){
    let {detail} = e;
    let selectAll = !this.data.isSelectAll;
    let selectCount = selectAll?this.length:0;
    this.setData({isSelectAll: selectAll, selectAll, selectCount});
  },
  onSubmit(e){
    let {detail:{value:{shixun_ids}}} = e;
    if(shixun_ids.length==0)
      return wx.showToast({
        title: '请选择实训',icon:"none"
      })
    shixun_ids = shixun_ids.map(i=>parseInt(i));
    this.setData({shixun_ids, showSendDialog: true});

  },
  pullShixuns(){
    let {subject_id} = this.data;
    let apiName = "paths.choose_course";
    app.api(apiName)({subject_id})
    .then(res=>{
      let {stages} = res;
      this.setData({stages});
      let length = 0;
      console.log(stages);
      for(var i=0;i<stages.length;i++){
        length+=stages[i].shixuns.length;
      }
      this.length = length;
    }).catch(e=>{
      global.realTimeLog.error(e, apiName + " fail to call");
      app.showError(e);
    })
  },
})