var api = require('../../utils/api');
Page(require('../../utils/page-header').page({
  onShareAppMessage: function () { return require('../../utils/share').message(); },
  data: {
    // Keep the original H5 pixels, but avoid public-network requests for the
    // first screen's background, brand and guest icon.
    bgUrl: '../../assets/startup/bg-login-h5.webp',
    brandUrl: '../../assets/startup/brand-login.png',
    guestIconUrl: '../../assets/startup/icon-guest.png',
    agreed: false, busy: false, checking: true, showPolicy: false,
    message: '正在检查登录状态…'
  },
  onLoad: function (query) { this.chooseAccount = !!(query && query.switch === '1'); this.alive = true; this.entrySeq = 0; },
  onShow: function () {
    var that = this;
    this.alive = true;
    if (this.data.busy) return;
    var seq = this.entrySeq = (this.entrySeq || 0) + 1;
    if (this.chooseAccount) { this.setData({ checking: false, message: '淘宝登录可保存报告；游客仅限本次体验。' }); return; }
    this.setData({ checking: true });
    api.restore().then(function (user) {
      if (!that.alive || seq !== that.entrySeq) return;
      if (user) { my.redirectTo({ url: '/pages/splash/splash' }); return; }
      that.setData({ message: '淘宝登录可保存报告；游客仅限本次体验。' });
    }).catch(function (err) {
      if (that.alive && seq === that.entrySeq) that.setData({ message: err.status === 401 ? '登录已过期，请重新登录或选择游客体验。' : '暂时无法检查登录状态，请重试或选择游客体验。' });
    }).then(function () { if (that.alive && seq === that.entrySeq) that.setData({ checking: false }); });
  },
  onUnload: function () { this.alive = false; this.entrySeq++; },
  onToggleAgree: function () { if (!this.data.busy) this.setData({ agreed: !this.data.agreed }); },
  onOpenPolicy: function () { this.setData({ showPolicy: true }); },
  onClosePolicy: function () { this.setData({ showPolicy: false }); },
  enter: function (guest) {
    if (this.data.busy || (!guest && this.data.checking)) return;
    if (!this.data.agreed) { this.setData({ message: '请先阅读并同意用户协议和隐私政策' }); return; }
    var that = this, seq = this.entrySeq = (this.entrySeq || 0) + 1;
    this.setData({ busy: true, checking: false, message: guest ? '正在开始游客体验…' : '正在登录淘宝账号…' });
    var task;
    try { task = guest ? api.loginGuest(true) : api.login(true); } catch (error) { task = Promise.reject(error); }
    Promise.resolve(task).then(function () {
      if (that.alive && seq === that.entrySeq) my.redirectTo({ url: '/pages/splash/splash' });
    }).catch(function (err) { if (that.alive && seq === that.entrySeq && !(err && err.canceled)) {
      that.setData({ message: err && err.message || '暂时无法进入，请重试' });
    } })
      .then(function () { if (that.alive && seq === that.entrySeq) that.setData({ busy: false }); });
  },
  onTaobaoLogin: function () { this.enter(false); },
  onGuest: function () { this.enter(true); },
  noop: function () {}
}, typeof my === 'undefined' ? {} : my, { nativeTitleFallback: true }));