const app = getApp();
let KEY = "no-nav-to-course-after-send";

Component({
  properties: {
    shixun_ids:Array,
    subject_id:{
      type:Number,
      value:0
    },
    open_type:{
      type:String,
      value:"navigateTo"
    },
    show: {
      type:Boolean,
      value:false,
      observer:function(v){
        if(v){
          if(this.data.status!=200||this.user_id!=app.user().user_id){
            this.pullCourse({refresh:1});
            this.user_id = app.user().user_id;
          }
          this.setData({auto_nav: !wx.getStorageSync(KEY)})
        }
      }
    }
  },

  data: {
    courses:[],
    auto_nav: !wx.getStorageSync(KEY)
  }, 
  created(){
    this.options = {page:1, limit:10};
  },

  methods: {
    onClose(){
      this.setData({checked: false});
      this.setData({show:false});
      this.course_id = null;
    },
    changeOption(e){
      //console.log(e); 
      this.setData({auto_nav: !this.data.auto_nav});
      wx.setStorageSync(KEY, !this.data.auto_nav);
    },
    send(){
      let {course_id} = this;
      let {shixun_ids, subject_id} = this.data;
      if(shixun_ids.length==0){
        return wx.showToast({
          title: '请选择实训',
          icon:"none"
        })
      }
      if(!course_id){
        return wx.showToast({
          title: '请选择课堂',
          icon:"none"
        })
      }
      //console.log(shixun_ids, course_id);
      if(subject_id>0){
        var api_name = 'paths.send_to_course';
        wx.showLoading({
          title: '发送中',
        })
      }else{
        var api_name = "shixuns.batch_send_to_course";
      }
      app.api(api_name)({subject_id, course_id, shixun_ids})
      .then(res=>{
        this.triggerEvent("success",{});
        wx.hideLoading();
        //console.log(res);
        app.showMsg(res);
        this.onClose();
        if(this.data.auto_nav)
          setTimeout(()=>{
            app[this.data.open_type]({
              url:`{course}?course_id=${course_id}&module_type=shixun_homework`
            })
          },420);
      }).catch(e=>{
        app.showError(e);
      });
    },
    onChange(e){
      let {detail:{value}} = e;
      this.course_id = parseInt(value);
      //console.log(e, value);
    },
    onReachBottom(){
      this.pullCourse();
    },
    pullCourse({refresh=0}={}){
      if(refresh){
        this.options.page=1;
      }else{
        this.options.page++;
      }
      app.api("courses.search_slim")(this.options)
      .then(res=>{
        let {courses} = res;
        if(!refresh)
          courses = this.data.courses.concat(courses);
        this.setData({courses, status:200});
      }).catch(e=>{
        global.realTimeLog.error(e, "courses.search_slim fail");
      })
    }
  }
})