const { customerApi } = require('../../utils/api');

Page({
  data: {
    customers: [],
    page: 1,
    hasMore: true,
    loading: false,
    showAddModal: false,
    newCustomer: {
      name: '',
      company: '',
      country: '',
      phone: '',
      whatsapp_id: '',
      email: '',
    },
  },

  onLoad() {
    this.loadCustomers();
  },

  onReachBottom() {
    if (this.data.hasMore && !this.data.loading) {
      this.setData({ page: this.data.page + 1 });
      this.loadCustomers(true);
    }
  },

  async loadCustomers(isAppend = false) {
    if (this.data.loading) return;

    this.setData({ loading: true });
    try {
      const result = await customerApi.list(this.data.page);
      this.setData({
        customers: isAppend ? [...this.data.customers, ...result.items] : result.items,
        hasMore: result.items.length >= result.size,
        loading: false,
      });
    } catch (err) {
      wx.showToast({ title: err.message || '加载失败', icon: 'none' });
      this.setData({ loading: false });
    }
  },

  showAdd() {
    this.setData({ showAddModal: true });
  },

  hideAdd() {
    this.setData({ showAddModal: false });
  },

  onInput(e) {
    const field = e.currentTarget.dataset.field;
    const value = e.detail.value;
    this.setData({
      [`newCustomer.${field}`]: value,
    });
  },

  async addCustomer() {
    const { newCustomer } = this.data;
    if (!newCustomer.name) {
      wx.showToast({ title: '请输入客户名称', icon: 'none' });
      return;
    }

    try {
      await customerApi.create(newCustomer);
      wx.showToast({ title: '添加成功', icon: 'success' });
      this.hideAdd();
      this.setData({ page: 1, customers: [] });
      this.loadCustomers();
    } catch (err) {
      wx.showToast({ title: err.message || '添加失败', icon: 'none' });
    }
  },

  async deleteCustomer(e) {
    const id = e.currentTarget.dataset.id;
    wx.showModal({
      title: '确认删除',
      content: '确定要删除该客户吗？',
      success: async (res) => {
        if (res.confirm) {
          try {
            await customerApi.delete(id);
            wx.showToast({ title: '已删除', icon: 'success' });
            this.setData({ page: 1, customers: [] });
            this.loadCustomers();
          } catch (err) {
            wx.showToast({ title: '删除失败', icon: 'none' });
          }
        }
      },
    });
  },

  viewDetail(e) {
    const id = e.currentTarget.dataset.id;
    wx.navigateTo({ url: `/pages/customers/detail?id=${id}` });
  },

  getStatusClass(status) {
    const map = {
      lead: 'text-primary',
      negotiating: 'text-warning',
      closed: 'text-success',
    };
    return map[status] || '';
  },

  onPullDownRefresh() {
    this.setData({ page: 1, customers: [] });
    this.loadCustomers();
    wx.stopPullDownRefresh();
  },
});