/**
 * U52 我的预约
 *
 * Phase 19：此前是硬编码假预约（取消只弹 Modal，不改数据）。
 * 现接入 GET /service-appointments（服务端按登录主体过滤）+ POST /{id}/cancel。
 */
const { serviceAppointmentService } = require('../../services');

const STATUS_LABEL = {
  submitted: '待确认',
  pending_confirmation: '待确认',
  confirmed: '已确认',
  completed: '已完成',
  cancelled: '已取消',
};

Page({
  data: {
    loading: true,
    error: '',
    appointments: [],
  },
  onShow() {
    this.load();
  },
  async load() {
    this.setData({ loading: true, error: '' });
    try {
      const list = await serviceAppointmentService.getMyAppointments();
      const appointments = (list || []).map((item) => ({
        id: item.id,
        title: item.serviceLocationName || '善缘丹阳公益服务站',
        status: STATUS_LABEL[item.status] || item.status || '',
        date: [item.preferredDate, item.preferredTimeSlot].filter(Boolean).join(' ') || '时间待确认',
        station: item.serviceLocationName || '',
        cancellable: item.status !== 'completed' && item.status !== 'cancelled',
      }));
      this.setData({ appointments, loading: false });
    } catch (error) {
      this.setData({ loading: false, error: '加载失败，请稍后重试' });
    }
  },
  cancel(event) {
    const id = event.currentTarget.dataset.id;
    wx.showModal({
      title: '取消预约',
      content: '确定取消本次服务预约吗？',
      confirmText: '确认取消',
      confirmColor: '#D94A4A',
      success: async (res) => {
        if (!res.confirm) {
          return;
        }
        try {
          await serviceAppointmentService.cancelAppointment(id, '用户取消');
          wx.showToast({ title: '已取消', icon: 'success' });
          this.load();
        } catch (error) {
          wx.showToast({ title: '取消失败，请稍后重试', icon: 'none' });
        }
      },
    });
  },
});