const app = getApp();
const svc = require('../../services/exercise');

Page({
  data: {
    statusBarHeight: 20,
    id: '',
    exercise: null,
    related: [],
    loading: true
  },

  onLoad(query) {
    const id = query.id || '';
    this.setData({ statusBarHeight: app.globalData.statusBarHeight || 20, id });
    this.load();
  },

  load() {
    this.setData({ loading: true });
    svc.getExercise(this.data.id).then((ex) => {
      this.setData({ exercise: ex, loading: false });
      if (ex && ex.target) {
        svc.listExercises({ target: ex.target, pageSize: 6 }).then((res) => {
          const related = ((res && res.items) || [])
            .filter(i => i.id !== ex.id)
            .slice(0, 6);
          this.setData({ related });
        }).catch(() => {});
      }
    }).catch(() => {
      this.setData({ loading: false });
    });
  },

  onAdd() {
    wx.showToast({ title: '已加入今日训练', icon: 'success' });
  },

  onBack() {
    const pages = getCurrentPages();
    if (pages.length > 1) {
      wx.navigateBack();
    } else {
      wx.reLaunch({ url: '/pages/index/index' });
    }
  },

  onExercise(e) {
    wx.navigateTo({ url: '/pages/detail/detail?id=' + encodeURIComponent(e.detail.id) });
  },

  onShareAppMessage() {
    const ex = this.data.exercise || {};
    return {
      title: ex.name ? ('FITCOACH · ' + ex.name) : 'FITCOACH 智能健身教练',
      path: '/pages/detail/detail?id=' + this.data.id
    };
  },

  onShareTimeline() {
    return {
      title: 'FITCOACH · 精准训练推荐',
      query: 'id=' + this.data.id
    };
  }
});