fitness-coach/miniprogram/pages/index/index.js

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

Page({
  data: {
    statusBarHeight: 20,
    stats: null,
    bodyParts: [],
    equipment: [],
    featured: [],
    collections: [],
    loading: true,
    quickEntries: [
      { key: 'recommend', label: '智能推荐', emoji: '✨', url: '/pages/recommend/recommend' },
      { key: 'bodyPart', label: '按部位', emoji: '💪', url: '/pages/category/category?dimension=bodyPart' },
      { key: 'equipment', label: '按器械', emoji: '🏋️', url: '/pages/category/category?dimension=equipment' },
      { key: 'official', label: '官方计划', emoji: '📋', url: '/pages/collection/collection' },
      { key: 'myPlans', label: '我的计划', emoji: '🗂️', url: '/pages/my-plans/my-plans' },
      { key: 'mine', label: '我的', emoji: '👤', url: '/pages/profile/profile' }
    ]
  },

  onLoad() {
    this.setData({ statusBarHeight: app.globalData.statusBarHeight || 20 });
    this.loadData();
  },

  loadData() {
    this.setData({ loading: true });
    Promise.all([
      svc.getStats().catch(() => null),
      svc.listExercises({ pageSize: 8 }).catch(() => ({ items: [] })),
      svc.listCollections().catch(() => [])
    ]).then(([stats, list, collections]) => {
      this.setData({
        stats,
        bodyParts: (stats && stats.bodyParts) || [],
        equipment: (stats && stats.equipment) || [],
        featured: (list && list.items) || [],
        collections: collections || [],
        loading: false
      });
    }).catch(() => {
      this.setData({ loading: false });
    });
  },

  goRecommend() {
    wx.navigateTo({ url: '/pages/recommend/recommend' });
  },

  onQuick(e) {
    wx.navigateTo({ url: e.currentTarget.dataset.url });
  },

  onSearch() {
    wx.navigateTo({ url: '/pages/search/search' });
  },

  onScanBodyPart(e) {
    const { value, label } = e.currentTarget.dataset;
    wx.navigateTo({
      url: '/pages/category/category?dimension=bodyPart&value=' +
        encodeURIComponent(value) + '&title=' + encodeURIComponent(label)
    });
  },

  onScanEquipment(e) {
    const { value, label } = e.currentTarget.dataset;
    wx.navigateTo({
      url: '/pages/category/category?dimension=equipment&value=' +
        encodeURIComponent(value) + '&title=' + encodeURIComponent(label)
    });
  },

  onCollection(e) {
    wx.navigateTo({
      url: '/pages/collection-detail/collection-detail?slug=' +
        encodeURIComponent(e.currentTarget.dataset.slug)
    });
  },

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