const storage = require('../../utils/storage');

Page({
  data: {
    avatarUrl: '',
    nickname: '',
    prefs: { taste: '都可以', priceRange: 'all', allergies: '' },
    shoppingList: []
  },
  onShow() {
    const prefs = storage.get('user_prefs', { taste: '都可以', priceRange: 'all', allergies: '' });
    const shoppingList = storage.get('shopping_list', []);
    this.setData({ prefs, shoppingList });
  },
  setPref(e) {
    const { key, val } = e.currentTarget.dataset;
    const prefs = { ...this.data.prefs, [key]: val };
    this.setData({ prefs });
    storage.set('user_prefs', prefs);
  },
  setAllergies(e) {
    const prefs = { ...this.data.prefs, allergies: e.detail.value };
    this.setData({ prefs });
    storage.set('user_prefs', prefs);
  },
  toggleItem(e) {
    const idx = e.currentTarget.dataset.index;
    const list = this.data.shoppingList;
    list[idx].checked = !list[idx].checked;
    this.setData({ shoppingList: list });
    storage.set('shopping_list', list);
  },
  clearShopping() {
    wx.showModal({
      title: '清空清单',
      content: '确定清空所有购物清单吗？',
      success: (res) => {
        if (res.confirm) {
          this.setData({ shoppingList: [] });
          storage.set('shopping_list', []);
        }
      }
    });
  }
});