import { getFirmProfile, listLawyers } from '../../api/open';
import type { Lawyer } from '../../types/card';

const ALL_OFFICES = '所有办公机构';
const ALL_AREAS = '全部专业领域';

let searchDebounceTimer: number | null = null;

Page({
  data: {
    keyword: '',
    selectedOffice: ALL_OFFICES,
    selectedArea: ALL_AREAS,
    officeOptions: [ALL_OFFICES],
    areaOptions: [ALL_AREAS],
    filteredLawyers: [] as Lawyer[],
    loading: false,
  },

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

  async initializePage() {
    this.setData({ loading: true });
    try {
      const firm = await getFirmProfile();
      this.setData({
        officeOptions: [ALL_OFFICES, ...firm.officeList],
        areaOptions: [ALL_AREAS, ...firm.practiceAreas],
      });
      await this.loadLawyers();
    } catch (error) {
      const message = error instanceof Error ? error.message : '加载列表失败';
      wx.showToast({ title: message, icon: 'none' });
    } finally {
      this.setData({ loading: false });
    }
  },

  onUnload() {
    if (searchDebounceTimer !== null) {
      clearTimeout(searchDebounceTimer);
      searchDebounceTimer = null;
    }
  },

  onSearchInput(event: WechatMiniprogram.CustomEvent<{ value: string }>) {
    const keyword = event.detail.value || '';
    this.setData({ keyword });

    if (searchDebounceTimer !== null) {
      clearTimeout(searchDebounceTimer);
    }

    searchDebounceTimer = setTimeout(() => {
      this.loadLawyers();
    }, 250) as unknown as number;
  },

  onSearchConfirm() {
    if (searchDebounceTimer !== null) {
      clearTimeout(searchDebounceTimer);
      searchDebounceTimer = null;
    }
    this.loadLawyers();
  },

  handleOfficeChange(event: WechatMiniprogram.CustomEvent<{ value: string }>) {
    this.setData({ selectedOffice: event.detail.value });
    this.loadLawyers();
  },

  handleAreaChange(event: WechatMiniprogram.CustomEvent<{ value: string }>) {
    this.setData({ selectedArea: event.detail.value });
    this.loadLawyers();
  },

  async loadLawyers() {
    this.setData({ loading: true });
    try {
      const filteredLawyers = await listLawyers({
        keyword: this.data.keyword.trim() || undefined,
        office: this.data.selectedOffice === ALL_OFFICES ? undefined : this.data.selectedOffice,
        practiceArea: this.data.selectedArea === ALL_AREAS ? undefined : this.data.selectedArea,
      });
      this.setData({ filteredLawyers });
    } catch (error) {
      const message = error instanceof Error ? error.message : '加载律师列表失败';
      wx.showToast({ title: message, icon: 'none' });
    } finally {
      this.setData({ loading: false });
    }
  },

  handleLawyerSelect(event: WechatMiniprogram.CustomEvent<{ id: string }>) {
    const lawyerId = event.detail.id;
    if (!lawyerId) {
      return;
    }
    wx.navigateTo({
      url: `/pages/lawyer-detail/index?id=${lawyerId}`,
    });
  },
});