const store = require('../../utils/store.js');
const api = require('../../utils/api.js');

function todayStr() {
  const d = new Date();
  const p = (n) => (n < 10 ? '0' + n : '' + n);
  return d.getFullYear() + '-' + p(d.getMonth() + 1) + '-' + p(d.getDate());
}

function mapTask(t) {
  return {
    id: t.id,
    title: t.title,
    sub: t.description,
    priority: t.priority,
    done: t.done,
    sheet: t.sheet_type,
  };
}

Page({
  data: {
    pet: {},
    summary: { greeting: '', insights: [], week: [], advice: '', health_pct: 0, health_status: '正常' },
    tasks: [],
    firstArticle: null,
    selectedDate: '',
    taskLabel: '今日任务',
    todayDate: '',
    sheetShow: false,
    sheetType: '',
  },
  onLoad() {
    this.setData({ todayDate: todayStr() });
    this._unsub = store.subscribe((pet) => {
      this.setData({ pet });
      this.loadAll();
    });
  },
  onUnload() {
    if (this._unsub) this._unsub();
  },
  onShow() {
    if (typeof this.getTabBar === 'function' && this.getTabBar()) {
      this.getTabBar().setData({ selected: 0 });
    }
    store
      .ready()
      .then(() => {
        this.setData({ pet: store.getPet() });
        this.loadAll();
      })
      .catch((e) => wx.showToast({ title: e.message || '加载失败', icon: 'none' }));
  },
  loadAll() {
    this.loadSummary();
    this.loadTasks();
    if (!this.data.firstArticle) {
      api
        .listArticles()
        .then((list) => {
          if (list && list[0]) {
            this.setData({ firstArticle: { icon: list[0].icon, title: list[0].title, desc: list[0].description } });
          }
        })
        .catch(() => {});
    }
  },
  loadSummary() {
    const id = store.currentPetId();
    if (!id) return;
    api
      .homeSummary(id)
      .then((summary) => this.setData({ summary }))
      .catch(() => {});
  },
  loadTasks() {
    const id = store.currentPetId();
    if (!id) return;
    const date = this.data.selectedDate || this.data.todayDate;
    api
      .getTasks(id, date)
      .then((tasks) => this.setData({ tasks: (tasks || []).map(mapTask) }))
      .catch(() => {});
  },
  onTapDay(e) {
    const { date, active } = e.currentTarget.dataset;
    if (!date) return;
    const parts = date.split('-');
    this.setData({
      selectedDate: date,
      taskLabel: active ? '今日任务' : +parts[1] + '月' + +parts[2] + '日',
    });
    this.loadTasks();
  },
  backToToday() {
    this.setData({ selectedDate: this.data.todayDate, taskLabel: '今日任务' });
    this.loadTasks();
  },
  onTapTask(e) {
    const i = e.currentTarget.dataset.index;
    const t = this.data.tasks[i];
    if (t.sheet) {
      this.openSheetType(t.sheet);
      return;
    }
    api
      .toggleTask(t.id)
      .then((res) => {
        this.setData({ [`tasks[${i}].done`]: res.done });
        this.loadSummary();
      })
      .catch(() => {});
  },
  completeTasks() {
    const id = store.currentPetId();
    if (!id) return;
    api
      .completeAllTasks(id)
      .then((tasks) => {
        this.setData({ tasks: (tasks || []).map(mapTask) });
        this.loadSummary();
      })
      .catch(() => {});
  },
  openSheet(e) {
    this.openSheetType(e.currentTarget.dataset.type);
  },
  openSheetType(type) {
    this.setData({ sheetType: type, sheetShow: true });
  },
  closeSheet() {
    this.setData({ sheetShow: false });
    this.loadAll();
  },
  onSheetSave() {},
  onAddPet() {
    this.openSheetType('addPet');
  },
  onEditPet() {
    this.openSheetType('editPet');
  },
  onFab() {
    this.openSheetType('ai');
  },
  goProfile() {
    wx.navigateTo({ url: '/pages/profile/profile' });
  },
  goLearn() {
    wx.navigateTo({ url: '/pages/learn/learn' });
  },
  goRecord() {
    wx.switchTab({ url: '/pages/record/record' });
  },
});