const app = getApp();
const navData= [
  {
    text: "全部",
    exercise_status: "all",
    course_identities: [2, 5, 6]
  },
  {
    text: '提交中',
    exercise_status: 2,
    course_identities: [2, 5, 6]
  },
  {
    text: '已截止',
    exercise_status: 3,
    course_identities: [2, 5, 6]
  },
  {
    text: "未发布",
    exercise_status: 1,
    course_identities: [2]
  }
]
Component({
  options: {
    pureDataPattern: /^_/
  },
  properties: {
    course_id:{
      type:Number
    },
    id_:{
      type:Number
    },
    refresh:{
      type:Boolean,
      observer:function(v){
        if(v) {
        this.onPullDownRefresh();
        this.setData({ refresh: false });
        }
      }
    }
  },
  data: {
    imgDir: global.config.imgDir,
    loading: true,
    require_login: false,
    page_status: 0,
    exercises: [],
    current_status: "all",
    navList:navData,
    currentTab: 0,
    navScrollLeft: 0,
    user:{}
  },

  attached(){
    app.api("courses.top_banner")({ course_id: this.data.course_id })
      .then(res => {
        this.setData({ course: res })
        
      })
    this.pull_exercise();
    this.setData({ require_login: false });
  },
  methods: {
    switchNav({detail:{current,value}}){
      this.setData({ current_status: value.exercise_status});
    },  
    pull_exercise: function () {
      app.api("courses.exercises")({ course_id: this.data.course_id })
        .then(res => {
          ;
          if (res.exercises) {
            this.setData({ exercises: res.exercises, loading: false });
          }
          
        })
        .catch(e => {
          app.showError(e)
        });
    },
    see_exercise: function ({ currentTarget: { dataset } }) {
      app.navigateTo({
        url: '{exercise}?exercise_id=' + dataset.exercise_id,
      });
    },
    onPullDownRefresh: function () {
      this.pull_exercise();
    }
  }
})