// pages/user/my-preview/index.js
const { museumApi } = require('../../../utils/api.js');

Page({

  /**
   * 页面的初始数据
   */
  data: {
    reservations: [],
    pageNum: 1,
    pageSize: 10,
    hasMore: true,
    loading: false,
    type: 0 // 预约类型：0-全部，1-参观，2-活动
  },

  /**
   * 生命周期函数--监听页面加载
   */
  onLoad(options) {
    // 重置数据并加载第一页
    this.setData({
      reservations: [],
      pageNum: 1,
      hasMore: true
    });
    this.loadReservations();
  },

  /**
   * 生命周期函数--监听页面初次渲染完成
   */
  onReady() {

  },

  /**
   * 生命周期函数--监听页面显示
   */
  onShow() {

  },

  /**
   * 生命周期函数--监听页面隐藏
   */
  onHide() {

  },

  /**
   * 生命周期函数--监听页面卸载
   */
  onUnload() {

  },

  /**
   * 页面相关事件处理函数--监听用户下拉动作
   */
  onPullDownRefresh() {
    // 重置数据并重新加载
    this.setData({
      reservations: [],
      pageNum: 1,
      hasMore: true
    });
    this.loadReservations().finally(() => {
      wx.stopPullDownRefresh();
    });
  },

  /**
   * 页面上拉触底事件的处理函数
   */
  onReachBottom() {
    this.loadMoreReservations();
  },

  /**
   * 用户点击右上角分享
   */
  onShareAppMessage() {

  },

  /**
   * 加载预约数据
   */
  loadReservations() {
    if (this.data.loading) return Promise.resolve();
    
    this.setData({ loading: true });
    
    return museumApi.getMyReservations({
      pageNum: this.data.pageNum,
      pageSize: this.data.pageSize,
      type: this.data.type
    }).then(res => {
      console.log('预约列表数据:', res);
      
      if (res) {
        const newReservations = this.formatReservationData(res.records || []);
        const allReservations = this.data.pageNum === 1 ? newReservations : [...this.data.reservations, ...newReservations];
        
        this.setData({
          reservations: allReservations,
          hasMore: res.records && res.records.length === this.data.pageSize,
          loading: false
        });
      } else {
        wx.showToast({
          title: res.message || '获取预约数据失败',
          icon: 'none'
        });
        this.setData({ loading: false });
      }
    }).catch(error => {
      console.error('获取预约数据失败:', error);
      // wx.showToast({
      //   title: '网络错误，请重试',
      //   icon: 'none'
      // });
      this.setData({ loading: false });
    });
  },

  /**
   * 加载更多预约数据
   */
  loadMoreReservations() {
    if (!this.data.hasMore || this.data.loading) return;
    
    this.setData({
      pageNum: this.data.pageNum + 1
    });
    this.loadReservations();
  },

  /**
   * 格式化预约数据
   */
  formatReservationData(records) {
    const currentDate = new Date();
    currentDate.setHours(0, 0, 0, 0); // 设置为当天0点，便于日期比较
    
    return records.map(item => {
      const appointmentDate = new Date(item.appointmentTime);
      appointmentDate.setHours(0, 0, 0, 0);
      const isExpired = appointmentDate < currentDate;
      
      return {
        id: item.id,
        type: item.type === 1 ? 'normal' : 'activity', // 1-参观，2-活动
        date: this.formatDate(item.appointmentTime),
        time: item.time || '',
        activityName: item.activityTitle || '',
        status: item.status,
        visitors: item.visitors || [],
        isExpired: isExpired
      };
    });
  },

  /**
   * 格式化日期
   */
  formatDate(dateString) {
    if (!dateString) return '';
    const date = new Date(dateString);
    const year = date.getFullYear();
    const month = String(date.getMonth() + 1).padStart(2, '0');
    const day = String(date.getDate()).padStart(2, '0');
    return `${year}.${month}.${day}`;
  },

  /**
   * 取消预约
   */
  cancelReservation(e) {
    const reservationId = e.currentTarget.dataset.id;
    
    wx.showModal({
      title: '确认取消',
      content: '确定要取消这个预约吗？',
      success: (res) => {
        if (res.confirm) {
          // 这里调用取消预约的API
          this.performCancelReservation(reservationId);
        }
      }
    });
  },

  /**
   * 执行取消预约操作
   */
  performCancelReservation(reservationId) {
    wx.showLoading({
      title: '取消中...'
    });
    
    museumApi.cancelReservation(reservationId).then(res => {
      wx.hideLoading();
      console.log('取消预约结果:', res);
      if (res) {
        wx.showToast({
          title: '取消成功',
          icon: 'success'
        });
        
        // 重新获取列表数据
        this.setData({
          reservations: [],
          pageNum: 1,
          hasMore: true
        });
        this.loadReservations();
      } else {
        wx.showToast({
          title: res.message || '取消失败',
          icon: 'none'
        });
      }
    }).catch(error => {
      wx.hideLoading();
      console.error('取消预约失败:', error);
      wx.showToast({
        title: '网络错误，请重试',
        icon: 'none'
      });
    });
  }
})