const H5_BASE = 'https://www.yuban.co/home';
const STARTUP_SOURCE_PARAMS = {
  fromStartup: '1',
  source: 'wechat-miniprogram',
};

Component({
  properties: {},

  data: {
    loading: false,
    webViewPath: '',
    slides: [1, 2, 3, 5],
    activeSlide: 0,
  },

  lifetimes: {
    attached: function () {
      this.preloadCommonSubpackage();
      this.prepareWebViewPath();
    },
  },

  methods: {
    /**
     * 点击「立即体验」按钮
     * 直接跳转到 H5，不依赖 Parse/fm-plugin，让 H5 自行处理鉴权
     */
    onEnter() {
      if (this.data.loading) return;
      this.setData({ loading: true });

      try {
        const webViewPath = this.data.webViewPath || this.buildWebViewPath();

        wx.navigateTo({
          url: webViewPath,
          fail: (err) => {
            console.error('❌ 跳转失败:', err);
            wx.showToast({ title: '跳转失败，请重试', icon: 'none' });
          },
          complete: () => this.setData({ loading: false }),
        });
      } catch (err) {
        console.error('❌ onEnter 异常:', err);
        this.setData({ loading: false });
        wx.showToast({ title: '加载失败，请重试', icon: 'none' });
      }
    },

    onSwiperChange(e) {
      const current = Number(e?.detail?.current ?? 0);
      this.setData({ activeSlide: current });
    },

    preloadCommonSubpackage() {
      if (typeof wx.loadSubpackage !== 'function') return;
      wx.loadSubpackage({
        name: 'common'
      });
    },

    prepareWebViewPath() {
      const webViewPath = this.buildWebViewPath();
      this.setData({ webViewPath });
    },

    buildWebViewPath() {
      let token = null;
      let userId = null;
      let mobile = null;
      try {
        const app = getApp();
        if (app && app.Parse) {
          const currentUser = app.Parse.User.current();
          if (currentUser) {
            token = currentUser.getSessionToken() || null;
            userId = currentUser.id || null;
            mobile = currentUser.get('mobile') || null;
          }
        }
      } catch (e) {
        // Parse 不可用时直接游客模式进入 H5
      }

      // 兜底：storage 里可能已有登录态
      try {
        if (!token) token = wx.getStorageSync('sessionToken') || null;
        if (!userId) userId = wx.getStorageSync('userLogin') || null;
        if (!mobile) {
          const userInfo = wx.getStorageSync('userInfo') || {};
          mobile = userInfo.mobile || null;
        }
      } catch (e) {
        // ignore
      }

      // 约定：直达 /home，勿进 /startup；fromStartup=1 触发 H5 欢迎语桥接
      const h5Url = this.appendQuery(H5_BASE, {
        ...STARTUP_SOURCE_PARAMS,
        token,
        userId,
        mobile,
      });
      const encodedUrl = encodeURIComponent(h5Url);
      return `/common-page/pages/web-view/index?path=${encodedUrl}&skipAuth=true`;
    },

    appendQuery(url, params = {}) {
      const query = Object.keys(params)
        .filter((key) => params[key] !== null && params[key] !== undefined && params[key] !== '')
        .map((key) => `${encodeURIComponent(key)}=${encodeURIComponent(params[key])}`)
        .join('&');

      if (!query) return url;
      return `${url}${url.indexOf('?') === -1 ? '?' : '&'}${query}`;
    }
  }
})