/**
 * 职业与生活页 U07（Phase 04 P04-T22）
 *
 * 重构要点（遵循 AGENTS.md 不变量）：
 *   - 数据：profileService.getProfile + userStore.updateProfile（第 9 条）
 *   - 草稿恢复：onLoad 读 ONBOARDING_DRAFT.lifestyle，保存前写回（验收条件"Draft退出后可恢复"）
 *   - 下一步：跳 profile-photos
 */
const { userStore, appStore } = require('../../stores');
const { profileService } = require('../../services');
const { ROUTE, STORAGE_KEYS } = require('../../constants');

const OCCUPATION_CATEGORY_OPTIONS = [
  '机关事业单位', '教育', '医疗', '企业职员',
  '技术人员', '个体经营', '自由职业', '服务行业',
  '农业', '其他',
];

const WORK_REGION_OPTIONS = ['丹阳', '镇江市区', '镇江其他辖区', '南京', '不限'];

const SMOKING_OPTIONS = [
  { value: 'never', label: '不吸烟' },
  { value: 'occasional', label: '偶尔' },
  { value: 'often', label: '经常' },
];

const DRINKING_OPTIONS = [
  { value: 'never', label: '不饮酒' },
  { value: 'occasional', label: '偶尔' },
  { value: 'often', label: '经常' },
];

const LONG_TERM_OPTIONS = [
  { value: 'yes', label: '是' },
  { value: 'no', label: '否' },
];

const FUTURE_DANYANG_OPTIONS = [
  { value: 'willing', label: '愿意' },
  { value: 'uncertain', label: '不确定' },
  { value: 'unwilling', label: '不愿意' },
];

Page({
  data: {
    statusBarHeight: 20,
    navBarHeight: 44,
    loading: false,
    saving: false,
    occupationCategory: '',
    workRegion: '',
    smokingStatus: '',
    drinkingStatus: '',
    longTermDanyang: '',
    futureDanyang: '',
    // 选项
    occupationCategoryOptions: OCCUPATION_CATEGORY_OPTIONS,
    workRegionOptions: WORK_REGION_OPTIONS,
    smokingOptions: SMOKING_OPTIONS,
    drinkingOptions: DRINKING_OPTIONS,
    longTermOptions: LONG_TERM_OPTIONS,
    futureDanyangOptions: FUTURE_DANYANG_OPTIONS,
    occupationCategoryIndex: -1,
    workRegionIndex: -1,
    smokingIndex: -1,
    drinkingIndex: -1,
    longTermIndex: -1,
    futureDanyangIndex: -1,
  },

  onLoad() {
    this._initSystemInfo();
    this._applyDraft();
    this.loadProfile();
  },

  _initSystemInfo() {
    try {
      const sysInfo = wx.getSystemInfoSync();
      this.setData({
        statusBarHeight: sysInfo.statusBarHeight || 20,
        navBarHeight: 44,
      });
    } catch (e) { /* 使用默认值 */ }
  },

  async loadProfile() {
    this.setData({ loading: true });
    try {
      const profile = await profileService.getProfile();
      this._mergeProfile(profile);
    } catch (err) { /* 首次填写无资料 */ } finally {
      this.setData({ loading: false });
    }
  },

  _mergeProfile(profile) {
    if (!profile) return;
    const d = this._readDraft();
    const occupationCategory = d.occupationCategory || profile.occupationCategory || '';
    const workRegion = d.workRegion || profile.workRegion || '';
    const smokingStatus = d.smokingStatus || profile.smokingStatus || '';
    const drinkingStatus = d.drinkingStatus || profile.drinkingStatus || '';
    const longTermDanyang = d.longTermDanyang || profile.longTermDanyang || '';
    const futureDanyang = d.futureDanyang || profile.futureDanyang || '';
    this.setData({
      occupationCategory,
      workRegion,
      smokingStatus,
      drinkingStatus,
      longTermDanyang,
      futureDanyang,
      occupationCategoryIndex: OCCUPATION_CATEGORY_OPTIONS.indexOf(occupationCategory),
      workRegionIndex: WORK_REGION_OPTIONS.indexOf(workRegion),
      smokingIndex: SMOKING_OPTIONS.findIndex((o) => o.value === smokingStatus),
      drinkingIndex: DRINKING_OPTIONS.findIndex((o) => o.value === drinkingStatus),
      longTermIndex: LONG_TERM_OPTIONS.findIndex((o) => o.value === longTermDanyang),
      futureDanyangIndex: FUTURE_DANYANG_OPTIONS.findIndex((o) => o.value === futureDanyang),
    });
  },

  // ============ 草稿 ============
  _readDraft() {
    try {
      const draft = wx.getStorageSync(STORAGE_KEYS.ONBOARDING_DRAFT) || {};
      return draft.lifestyle || {};
    } catch (e) {
      return {};
    }
  },

  _applyDraft() {
    const d = this._readDraft();
    if (!d || Object.keys(d).length === 0) return;
    this.setData({
      occupationCategory: d.occupationCategory || '',
      workRegion: d.workRegion || '',
      smokingStatus: d.smokingStatus || '',
      drinkingStatus: d.drinkingStatus || '',
      longTermDanyang: d.longTermDanyang || '',
      futureDanyang: d.futureDanyang || '',
      occupationCategoryIndex: OCCUPATION_CATEGORY_OPTIONS.indexOf(d.occupationCategory || ''),
      workRegionIndex: WORK_REGION_OPTIONS.indexOf(d.workRegion || ''),
      smokingIndex: SMOKING_OPTIONS.findIndex((o) => o.value === (d.smokingStatus || '')),
      drinkingIndex: DRINKING_OPTIONS.findIndex((o) => o.value === (d.drinkingStatus || '')),
      longTermIndex: LONG_TERM_OPTIONS.findIndex((o) => o.value === (d.longTermDanyang || '')),
      futureDanyangIndex: FUTURE_DANYANG_OPTIONS.findIndex((o) => o.value === (d.futureDanyang || '')),
    });
  },

  _writeDraft() {
    try {
      const draft = wx.getStorageSync(STORAGE_KEYS.ONBOARDING_DRAFT) || {};
      draft.lifestyle = {
        occupationCategory: this.data.occupationCategory,
        workRegion: this.data.workRegion,
        smokingStatus: this.data.smokingStatus,
        drinkingStatus: this.data.drinkingStatus,
        longTermDanyang: this.data.longTermDanyang,
        futureDanyang: this.data.futureDanyang,
      };
      draft.currentStep = 'lifestyle';
      wx.setStorageSync(STORAGE_KEYS.ONBOARDING_DRAFT, draft);
    } catch (e) { /* ignore */ }
  },

  // ============ 表单交互 ============
  onOccupationCategoryChange(e) {
    const idx = Number(e.detail.value);
    this.setData({ occupationCategoryIndex: idx, occupationCategory: OCCUPATION_CATEGORY_OPTIONS[idx] });
  },

  onWorkRegionChange(e) {
    const idx = Number(e.detail.value);
    this.setData({ workRegionIndex: idx, workRegion: WORK_REGION_OPTIONS[idx] });
  },

  onSmokingChange(e) {
    const idx = Number(e.detail.value);
    this.setData({ smokingIndex: idx, smokingStatus: SMOKING_OPTIONS[idx].value });
  },

  onDrinkingChange(e) {
    const idx = Number(e.detail.value);
    this.setData({ drinkingIndex: idx, drinkingStatus: DRINKING_OPTIONS[idx].value });
  },

  onLongTermChange(e) {
    const idx = Number(e.detail.value);
    this.setData({ longTermIndex: idx, longTermDanyang: LONG_TERM_OPTIONS[idx].value });
  },

  onFutureDanyangChange(e) {
    const idx = Number(e.detail.value);
    this.setData({ futureDanyangIndex: idx, futureDanyang: FUTURE_DANYANG_OPTIONS[idx].value });
  },

  // ============ 导航 ============
  onBack() {
    this._writeDraft();
    wx.navigateBack();
  },

  async onNext() {
    if (this.data.saving) return;
    const { occupationCategory, workRegion, smokingStatus, drinkingStatus, longTermDanyang, futureDanyang } = this.data;
    if (!occupationCategory) return appStore.toast('请选择职业类别');
    if (!workRegion) return appStore.toast('请选择工作区域');

    this.setData({ saving: true });
    this._writeDraft();
    try {
      await userStore.updateProfile({
        occupationCategory,
        workRegion,
        smokingStatus,
        drinkingStatus,
        longTermDanyang,
        futureDanyang,
      });
      this.setData({ saving: false });
      wx.navigateTo({ url: ROUTE.ONBOARDING.PROFILE_PHOTOS });
    } catch (err) {
      this.setData({ saving: false });
      appStore.toastError(err, '保存失败');
    }
  },
});