/**
 * 用户资料详情页 U21
 *
 * 重构要点（遵循 AGENTS.md 不变量）：
 *   - 数据获取：recommendationService.getUserDetail（API_INVENTORY 行 43），不再直连 api 模块
 *   - 喜欢：matchStore.like（mutualMatch=true 时跳转会话页，AGENTS 第 3/6 条）
 *   - 拉黑：blockUser 跨 Store 编排（MatchStore + MessageStore 同步停用，AGENTS 第 4 条）
 *   - 举报：跳转 report 页，不在本页处理
 *   - 敏感数据：profile.birthday/身份证/手机号 仅服务端持有，前端不缓存（AGENTS 第 8 条）
 *   - Required 不可放宽：本页只读展示，无任何放宽择偶条件的入口（AGENTS 第 2 条）
 */
const { matchStore, appStore, blockUser } = require('../../stores');
const { recommendationService } = require('../../services');
const { to, DANGER_ACTION, RELATION_STATUS, BUSINESS_ERROR_CODE, profileLabelOf, yesNoLabel, futureDanyangLabel } = require('../../constants');

Page({
  data: {
    userId: '',
    profile: null,
    loading: true,
    loadError: '',
    /** @type {import('../../types').RelationStatus} */
    relationStatus: RELATION_STATUS.NEUTRAL,
    isLiked: false,
    isMutual: false,
    canChat: false,
    actionLoading: false,
    statusBarHeight: 20,
    navBarHeight: 44,
    showBlockDialog: false,
    blockAction: DANGER_ACTION.BLOCK,
    /** 派生的展示字段 */
    displayName: '',
    ageText: '',
    metaLine: '',
    badges: [],
    basicInfo: [],
    attitudeInfo: [],
  },

  onLoad(options) {
    const userId = options.id || '';
    if (!userId) {
      this.setData({ loading: false, loadError: '用户不存在' });
      return;
    }
    // 状态栏高度由 app.js 注入到全局，这里读一次
    try {
      const sysInfo = wx.getSystemInfoSync ? wx.getSystemInfoSync() : null;
      if (sysInfo) {
        this.setData({
          statusBarHeight: sysInfo.statusBarHeight || 20,
          navBarHeight: 44,
        });
      }
    } catch (e) { /* 使用默认值 */ }

    this.setData({ userId });
    this.loadProfile();
  },

  async loadProfile() {
    this.setData({ loading: true, loadError: '' });
    try {
      const user = await recommendationService.getUserDetail(this.data.userId);
      this.setData({ loading: false, profile: user });
      this._deriveDisplay(user);
    } catch (err) {
      this.setData({
        loading: false,
        loadError: (err && err.message) || '加载失败',
      });
      appStore.toastError(err, '加载用户资料失败');
    }
  },

  /**
   * 把后端 User 字段派生为展示用结构，避免 wxml 内做条件拼接
   */
  _deriveDisplay(user) {
    if (!user) return;
    const relationStatus = user.relationStatus || RELATION_STATUS.NEUTRAL;
    const isLiked = relationStatus === RELATION_STATUS.LIKED || relationStatus === RELATION_STATUS.MUTUAL_MATCH;
    const isMutual = relationStatus === RELATION_STATUS.MUTUAL_MATCH;
    // AGENTS 第 3 条：只有 Mutual 后才能聊天
    const canChat = isMutual && relationStatus !== RELATION_STATUS.BLOCKED;

    const badges = [];
    if (user.verified || user.isRealNameVerified) {
      badges.push({ kind: 'success', label: '已实名' });
    }
    if (user.reviewed || user.profileReviewStatus === 'approved') {
      badges.push({ kind: 'info', label: '资料已审核' });
    }

    const metaParts = [];
    if (user.heightCm) metaParts.push(`${user.heightCm}cm`);
    if (user.regionName) metaParts.push(user.regionName);
    const eduLabel = profileLabelOf('educationCode', user.educationCode);
    if (eduLabel) metaParts.push(eduLabel);
    const occLabel = profileLabelOf('occupationCode', user.occupationCode);
    if (occLabel) metaParts.push(occLabel);

    const basicInfo = [];
    const maritalLabel = profileLabelOf('maritalStatus', user.maritalStatus);
    if (maritalLabel) basicInfo.push({ label: '婚姻状况', value: maritalLabel });
    if (user.childrenStatus || user.hasChildren !== undefined) {
      basicInfo.push({ label: '子女情况', value: user.childrenStatus ? profileLabelOf('childrenStatus', user.childrenStatus) : (user.hasChildren ? '有孩' : '无孩') });
    }
    if (eduLabel) basicInfo.push({ label: '学历', value: eduLabel });
    if (occLabel) basicInfo.push({ label: '职业', value: occLabel });
    const smokingLabel = profileLabelOf('smokingStatus', user.smokingStatus);
    if (smokingLabel) basicInfo.push({ label: '吸烟', value: smokingLabel });
    const drinkingLabel = profileLabelOf('drinkingStatus', user.drinkingStatus);
    if (drinkingLabel) basicInfo.push({ label: '饮酒', value: drinkingLabel });
    const longTermLabel = yesNoLabel(user.longTermDanyang);
    if (longTermLabel) basicInfo.push({ label: '定居意愿', value: longTermLabel, full: true });
    const futureLabel = futureDanyangLabel(user.futureDanyang);
    if (futureLabel) basicInfo.push({ label: '未来规划', value: futureLabel, full: true });

    const attitudeInfo = [];
    // relationshipGoal / marriagePlan 由后端返回中文文案（结婚 / 恋爱 等），未知码原样透传
    if (user.relationshipGoal) attitudeInfo.push({ label: '寻找', value: user.relationshipGoal, full: true });
    if (user.marriagePlan) attitudeInfo.push({ label: '结婚计划', value: user.marriagePlan, full: true });

    this.setData({
      relationStatus,
      isLiked,
      isMutual,
      canChat,
      displayName: user.displayName || '用户',
      ageText: user.age ? `${user.age}岁` : '',
      metaLine: metaParts.join(' · '),
      badges,
      basicInfo,
      attitudeInfo,
    });
  },

  onBack() {
    wx.navigateBack();
  },

  onRetry() {
    this.loadProfile();
  },

  /**
   * 喜欢（AGENTS 第 3/5/6 条：用户本人操作，mutualMatch 时跳聊天）
   */
  async onLike() {
    const { userId, actionLoading, isLiked } = this.data;
    if (!userId || actionLoading || isLiked) return;
    this.setData({ actionLoading: true });
    try {
      const result = await matchStore.like(userId);
      // 本地派生状态更新
      if (result && result.mutualMatch) {
        this.setData({
          isLiked: true,
          isMutual: true,
          canChat: true,
          relationStatus: RELATION_STATUS.MUTUAL_MATCH,
          actionLoading: false,
        });
        appStore.toastSuccess('双向意向匹配成功，可查看公益服务');
      } else {
        this.setData({
          isLiked: true,
          relationStatus: RELATION_STATUS.LIKED,
          actionLoading: false,
        });
        appStore.toastSuccess('已表达喜欢');
      }
    } catch (err) {
      this.setData({ actionLoading: false });
      if (err && err.code === BUSINESS_ERROR_CODE.DUPLICATE_ACTION) {
        appStore.toast('已表达过喜欢');
      } else {
        appStore.toastError(err, '操作失败');
      }
    }
  },


  /**
   * 举报：跳转 report 页，不在本页处理（AGENTS 第 7 条：举报内容不在此暴露）
   */
  onReport() {
    const { userId } = this.data;
    if (!userId) return;
    wx.navigateTo({ url: to.report(userId) });
  },

  /**
   * 拉黑入口：弹出 DangerActionDialog 二次确认（AGENTS 第 4 条）
   */
  onBlock() {
    if (!this.data.userId) return;
    this.setData({ showBlockDialog: true });
  },

  onConfirmBlock() {
    this.setData({ showBlockDialog: false });
    this._doBlock();
  },

  onCancelBlock() {
    this.setData({ showBlockDialog: false });
  },

  /**
   * 执行拉黑：调用跨 Store 编排 blockUser
   *  - MatchStore：从推荐/Mutual 列表移除
   *  - MessageStore：会话立即标记不可发消息
   */
  async _doBlock() {
    const { userId, actionLoading } = this.data;
    if (!userId || actionLoading) return;
    this.setData({ actionLoading: true });
    try {
      appStore.showLoading('处理中…');
      await blockUser(userId, '用户主动拉黑');
      appStore.hideLoading();
      appStore.toastSuccess('已拉黑');
      // 拉黑后离开当前页（AGENTS 第 4 条：Block 即时禁止互动）
      setTimeout(() => wx.navigateBack(), 800);
    } catch (err) {
      appStore.hideLoading();
      this.setData({ actionLoading: false });
      appStore.toastError(err, '拉黑失败');
    }
  },
});