const app = getApp();

Component({
  properties: {
    _id: Number,
    name: String
  },
  data: {
    departments: []
  },
  methods: {
    onTapHeader() {
      if (!this.data.departments || this.data.departments.length == 0) {
        app.api("schools.departments.for_option")({
          school_id: this.data._id
        })
          .then(res => {
            let {
              departments
            } = res;
              this.setData({
                departments
              });
          });
      }
      this.setData({ showDepartments: !this.data.showDepartments });
    },
    onTapDepartment(e) {
      console.log(e);
      let { target: { dataset: { name: department_name, id: department_id } } } = e;
      if (!department_id) return;
      let { _id: school_id, name: school_name } = this.data;
      let data = { school_id, school_name, department_id, department_name };
      wx.setStorageSync("SET-SCHOOL-DEPARTMENT-KEY", data); 
      wx.navigateBack({
        delta:1
      });
    }
  }
})