/**
 * 审核中页 U16 / H10（Phase 05 P05-T16）
 *
 * 重构要点（遵循 AGENTS.md 不变量）：
 *   - 数据：userStore.fetchReviewStatus + verificationService.getStatus（并行）
 *   - 状态自检：onShow 读取 userStore.state.userState.profileReviewStatus，
 *     若已 approved → reLaunch 首页；若 need_edit/rejected → redirectTo 审核驳回页
 *     （AGENTS 第 9 条：DB 是 Source of Truth，状态以服务端为准）
 *   - 路由：仅读 userState，不放宽 Required；只读展示，无修改入口
 *   - 帮助：底部提示联系平台工作人员
 */
const { userStore, appStore, getReviewRedirectPath } = require('../../stores');
const { verificationService } = require('../../services');
const { ROUTE, PROFILE_REVIEW } = require('../../constants');

// 审核步骤：1 已提交 → 2 审核中 → 3 审核完成
const REVIEW_STEPS = [
  { key: 'submitted', label: '提交资料', icon: '✓' },
  { key: 'reviewing', label: '人工审核', icon: '◉' },
  { key: 'done', label: '审核完成', icon: '○' },
];

Page({
  data: {
    statusBarHeight: 20,
    navBarHeight: 44,
    loading: true,
    refreshing: false,
    // 实名认证状态
    verificationStatus: 'pending',
    verificationLabel: '认证中',
    verificationKind: 'warning',
    // 资料审核状态
    profileReviewStatus: PROFILE_REVIEW.PENDING,
    profileReviewLabel: '审核中',
    profileReviewKind: 'warning',
    submittedAt: null,
    reviewedAt: null,
    // 步骤
    steps: REVIEW_STEPS,
    currentStepIndex: 1,
  },

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

  onShow() {
    // 路由守卫：若审核状态已变化，引导至合适页面
    // （用户可能在别的页面停留时被审核通过/驳回）
    const redirect = getReviewRedirectPath();
    if (redirect && redirect !== ROUTE.REVIEW.PENDING) {
      // 状态变为 need_edit/rejected → 跳驳回页
      wx.redirectTo({ url: redirect });
      return;
    }
    if (!redirect) {
      // 状态变为 approved → 跳首页
      wx.reLaunch({ url: ROUTE.TAB.HOME });
      return;
    }
    // 仍为 pending，正常展示
    this.loadStatus();
  },

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

  // ============ 数据加载 ============
  async loadStatus() {
    this.setData({ loading: true });
    try {
      // 并行拉取资料审核态 + 实名认证态；任一失败不阻塞另一个
      const [review, verification] = await Promise.all([
        userStore.fetchReviewStatus().catch(() => null),
        verificationService.getStatus().catch(() => null),
      ]);

      const profileReviewStatus = (review && review.status) || PROFILE_REVIEW.PENDING;

      // 取到最新状态后重新校验是否需要跳转（状态可能在审核中变为 approved/need_edit）
      if (profileReviewStatus === PROFILE_REVIEW.APPROVED) {
        wx.reLaunch({ url: ROUTE.TAB.HOME });
        return;
      }
      if (profileReviewStatus === PROFILE_REVIEW.NEED_EDIT || profileReviewStatus === PROFILE_REVIEW.REJECTED) {
        wx.redirectTo({ url: ROUTE.REVIEW.REJECTED });
        return;
      }
      const submittedAt = (review && review.submittedAt) || null;
      const reviewedAt = (review && review.reviewedAt) || null;

      const verificationStatus = (verification && verification.status) || 'pending';
      const verificationLabelMap = {
        not_submitted: '未提交',
        pending: '认证中',
        approved: '已完成',
        rejected: '未通过',
      };
      const verificationKindMap = {
        not_submitted: 'disabled',
        pending: 'warning',
        approved: 'success',
        rejected: 'danger',
      };

      const profileReviewLabelMap = {
        not_submitted: '未提交',
        pending: '审核中',
        approved: '已通过',
        need_edit: '需修改',
        rejected: '未通过',
      };
      const profileReviewKindMap = {
        not_submitted: 'disabled',
        pending: 'warning',
        approved: 'success',
        need_edit: 'warning',
        rejected: 'danger',
      };

      // 步骤索引：approved → 2（完成），pending → 1（审核中），其他 → 0
      let currentStepIndex = 1;
      if (profileReviewStatus === PROFILE_REVIEW.APPROVED) currentStepIndex = 2;
      else if (profileReviewStatus === PROFILE_REVIEW.NOT_SUBMITTED) currentStepIndex = 0;

      this.setData({
        loading: false,
        verificationStatus,
        verificationLabel: verificationLabelMap[verificationStatus] || '认证中',
        verificationKind: verificationKindMap[verificationStatus] || 'warning',
        profileReviewStatus,
        profileReviewLabel: profileReviewLabelMap[profileReviewStatus] || '审核中',
        profileReviewKind: profileReviewKindMap[profileReviewStatus] || 'warning',
        submittedAt,
        reviewedAt,
        currentStepIndex,
      });
    } catch (err) {
      this.setData({ loading: false });
      appStore.toastError(err, '加载失败');
    }
  },

  // ============ 下拉刷新 ============
  async onPullDownRefresh() {
    // 先刷新 userState（确保 getReviewRedirectPath 读到最新状态）
    try {
      await userStore.fetchStatus();
    } catch (e) { /* 不阻塞 */ }
    await this.loadStatus();
    wx.stopPullDownRefresh();
  },

  onRefresh() {
    this.loadStatus();
  },

  // ============ 导航 ============
  /**
   * 查看我的资料：跳转"我的"Tab
   * 不直接跳 profile-confirm，避免审核中再触发"提交审核"
   */
  onViewProfile() {
    wx.switchTab({ url: ROUTE.TAB.MINE });
  },

  /**
   * 联系工作人员：跳转帮助中心
   */
  onContactHelp() {
    wx.navigateTo({ url: ROUTE.SETTINGS.HELP_CENTER });
  },
});