/* ═════ 历史报告:api.request('reports') 拉列表 + 点条目进报告页
   对照 H5 index.html #s-history(L32-42) 与 app.js renderHistoryList()/openHistory()(L1944-2001)
   跳转前把 payload 放进 globalData,由 pages/report 渲染。 ═════ */
var api = require('../../utils/api');

function pad2(n) { return (n < 10 ? '0' : '') + n; }
// H5 用 toLocaleDateString('sv-SE'),即 YYYY-MM-DD 零填充
function formatDate(value) {
  var d = new Date(value);
  return d.getFullYear() + '-' + pad2(d.getMonth() + 1) + '-' + pad2(d.getDate());
}

Page(require('../../utils/page-header').page({
  onShareAppMessage: function () { return require('../../utils/share').message(); },
  data: {
    bgUrl: api.assetUrl('img/ui-20261009/bg-history-h5.jpg'),
    items: [], loading: false, error: '',
    signedIn: false, guest: false, accountLabel: '尚未登录',
    countText: '正在读取报告…',   // H5 #history-count 初值
    identityNote: '',
    toastText: '', toastOn: false, identityChecking: true, identityError: ''
  },
  onShow: function () {
    this.visible = true;
    if (!api.user()) { this.setData({ items: [] }); my.redirectTo({ url: '/pages/login/login' }); return; }
    this.ownerId = api.user().id;
    if (api.user().kind === 'taobao_guest') { this.showGuest(); return; }
    var that = this, owner = this.ownerId, seq = this.identitySeq = (this.identitySeq || 0) + 1;
    this.identityPending = true; this.setData({ identityChecking: true, identityError: '' });
    return (typeof api.restore === 'function' ? api.restore() : Promise.resolve(api.user())).then(function (user) {
      if (!that.visible || seq !== that.identitySeq) return;
      if (!user || user.id !== owner) { that.setData({ items: [], countText: '', identityNote: '' }); my.redirectTo({ url: '/pages/login/login' }); return; }
      that.identityPending = false;
      that.setData({ identityChecking: false, signedIn: true, guest: false, accountLabel: '淘宝已登录' });
      that.load();
    }).catch(function (err) {
      if (!that.visible || seq !== that.identitySeq) return;
      if (err.status === 401 || !api.user() || api.user().id !== owner) {
        that.setData({ items: [], countText: '', identityNote: '' }); my.redirectTo({ url: '/pages/login/login' }); return;
      }
      that.setData({ identityChecking: false, identityError: '网络异常，暂时无法确认当前账号，请重试。' });
    });
  },
  onHide: function () {
    this.visible = false; this.closed = true; this.loadSeq = (this.loadSeq || 0) + 1; this.identitySeq = (this.identitySeq || 0) + 1;
    if (api.user() && api.user().kind !== 'taobao_guest') { this.identityPending = true; this.setData({ identityChecking: true, identityError: '' }); }
  },
  onUnload: function () { this.onHide(); clearTimeout(this.toastTimer); },
  showGuest: function () {
    this.identityPending = false;
    this.setData({ guest: true, signedIn: false, accountLabel: '游客体验', items: [], loading: false, error: '',
      identityChecking: false, identityError: '', countText: '游客报告不计入历史记录', identityNote: '游客报告仅供本次查看，不保存照片、档案或历史报告。' });
  },
  onRetryIdentity: function () { return this.onShow(); },
  onLogin: function () { my.navigateTo({ url: '/pages/login/login?switch=1' }); },

  // H5 .toast
  toast: function (msg) {
    var that = this;
    this.setData({ toastText: msg, toastOn: true });
    clearTimeout(this.toastTimer);
    this.toastTimer = setTimeout(function () {
      that.setData({ toastOn: false });
    }, Math.max(1800, String(msg).length * 130));
  },

  load: function () {
    if (this.identityPending) return;
    var that = this;
    if (!api.user()) { my.redirectTo({ url: '/pages/login/login' }); return; }
    if (api.user().kind === 'taobao_guest') { this.showGuest(); return; }
    var owner = api.user().id, seq = this.loadSeq = (this.loadSeq || 0) + 1;
    this.closed = false;
    this.setData({ guest: false, loading: true, error: '', items: [] });
    function current() { return !that.closed && seq === that.loadSeq && api.user() && api.user().id === owner; }
    api.request('reports').then(function (data) {
      if (!current()) return;
      that.setData({
        countText: '您最近已进行过' + data.total + '次面部问题检测',
        identityNote: '保留最近 5 份报告，同一淘宝账号可跨手机查看。',
        items: data.items.map(function (item) {
          return { id: item.id, date: formatDate(item.created_at) };
        })
      });
    }).catch(function (err) {
      if (current()) that.setData({ error: err.message, countText: '暂时无法读取' });
      else if (!api.user() && err.status === 401 && that.visible) my.redirectTo({ url: '/pages/login/login' });
    }).then(function () { if (current()) that.setData({ loading: false }); });
  },

  onOpen: function (e) {
    if (this.identityPending) return;
    if (this.data.loading) return;
    if (!api.user() || api.user().kind === 'taobao_guest') return;
    var id = e.currentTarget.dataset.id;
    if (!id) return;
    var that = this;
    var owner = api.user().id, seq = this.loadSeq = (this.loadSeq || 0) + 1;
    this.closed = false;
    this.setData({ loading: true });
    api.request('reports', { id: id }).then(function (data) {
      if (that.closed || seq !== that.loadSeq || !api.user() || api.user().id !== owner) return;
      getApp().globalData.photos = data.report.photos;
      getApp().globalData.payload = Object.assign({}, data.report.payload, { vm: data.report.vm, presentation: data.report.presentation });
      my.navigateTo({ url: '/pages/report/report' });
    }).catch(function (err) {
      if (that.closed || seq !== that.loadSeq) return;
      if (err.status === 401) { that.setData({ items: [] }); my.redirectTo({ url: '/pages/login/login' }); }
      else that.toast(err.message);
    })
      .then(function () { if (!that.closed && seq === that.loadSeq) that.setData({ loading: false }); });
  },

  // H5 data-action="logout-wechat"(历史页右上角)
  onLogout: function () {
    var that = this;
    api.logout().then(function () {
      that.setData({ signedIn: false, accountLabel: '尚未登录', items: [], countText: '', identityNote: '' });
      my.redirectTo({ url: '/pages/login/login' });
    }).catch(function (err) { that.toast(err.message); });
  }
}, typeof my === 'undefined' ? {} : my));