import 'dart:io';
import 'dart:convert';
import 'package:qhd_prevention/services/StorageService.dart';
import 'package:flutter/material.dart';
import 'package:qhd_prevention/customWidget/custom_alert_dialog.dart';
import 'package:qhd_prevention/customWidget/toast_util.dart';
import 'package:qhd_prevention/http/ApiService.dart';
import 'package:qhd_prevention/pages/main_tab.dart';
import 'package:qhd_prevention/pages/my_appbar.dart';
import 'package:qhd_prevention/services/SessionService.dart';
import 'package:qhd_prevention/services/auth_service.dart';
import 'package:qhd_prevention/tools/tools.dart';
import 'package:shared_preferences/shared_preferences.dart';

class MineChangeFirmPage extends StatefulWidget {
  const MineChangeFirmPage({super.key});

  @override
  State<MineChangeFirmPage> createState() => _MineChangeFirmPageState();
}

class _MineChangeFirmPageState extends State<MineChangeFirmPage> {
  // 入职企业列表
  List<dynamic> list = [];
  String joinedUnitId = '';

  @override
  void initState() {
    super.initState();
    Map jsonData = json.decode(
      StorageService.instance.getString('key.saveJoinFirmInfo') ?? '{}',
    );
    joinedUnitId = jsonData['unitId'] ?? '';
    _getList();
  }

  void _getList() async {
    LoadingDialogHelper.show();
    var res = await BasicInfoApi.getJoinFirmList();
    LoadingDialogHelper.dismiss();
    if (res['success'] == true) {
      setState(() {
        list = res['data'];
      });
    }
  }

  // 切换账号
  Future<void> _changeAccount(dynamic data) async {
    await CustomAlertDialog.showConfirm(
      context,
      title: '温馨提示',
      content: '确认切换到企业"${data['corpName']}"?',
      onConfirm: () async {
        LoadingDialogHelper.show();
        final prefs = await SharedPreferences.getInstance();
        final phone = prefs.getString('savePhone') ?? '';
        final pwd = prefs.getString('savePass') ?? '';
        var params = {'unitId': data['id']};
        try {
          var res = await AuthService.gbsLogin(phone, pwd, params);
          LoadingDialogHelper.dismiss();
          if (res['success'] == true) {
            Navigator.pushReplacement(
              context,
              MaterialPageRoute(
                builder: (_) => const MainPage(isChooseFirm: true),
              ),
            );
          } else {
            ToastUtil.showNormal(context, res['errMessage'] ?? '切换账户失败，请重试');
          }
        } catch (e) {
          LoadingDialogHelper.dismiss();
          ToastUtil.showNormal(context, '切换账户失败，请重试');
        }
      },
    );
  }

  @override
  Widget build(BuildContext context) {
    return Scaffold(
      // backgroundColor: Colors.white,
      appBar: MyAppbar(title: '切换账号'),
      body: Column(
        children: [
          Container(
            width: MediaQuery.of(context).size.width,
            color: Colors.blue.shade50,
            padding: const EdgeInsets.symmetric(vertical: 8),
            // height: 40,
            child: Center(child: Text('点击企业名称以切换账号')),
          ),
          const SizedBox(height: 10),
          Container(
            height: 40.0 * list.length,
            width: MediaQuery.of(context).size.width - 24,
            decoration: BoxDecoration(
              color: Colors.white,
              border: Border.all(color: Colors.grey.shade300),
            ),
            child:
                list.isEmpty
                    ? NoDataWidget.show()
                    : ListView.builder(
                      padding: EdgeInsets.zero,
                      itemCount: list.length,
                      itemBuilder: (context, index) {
                        if (index >= list.length) {
                          // 加载更多时在列表底部显示加载指示器
                          return Padding(
                            padding: const EdgeInsets.symmetric(vertical: 16.0),
                            child: Center(child: CircularProgressIndicator()),
                          );
                        }
                        var data = list[index];
                        return SizedBox(
                          height: 40.0,
                          child: Column(
                            children: [
                              GestureDetector(
                                onTap: () async {
                                  _changeAccount(data);
                                },
                                child: SizedBox(
                                  height: 39.0,
                                  child: Center(
                                    child: Row(
                                      mainAxisAlignment:
                                          MainAxisAlignment.center,
                                      children: [
                                        Text('${data['corpName'] ?? 'aaaa'}'),
                                        if (joinedUnitId ==
                                            data['id']) ...[
                                          const Icon(
                                            Icons.check,
                                            size: 20,
                                            color: Colors.green,
                                          ),
                                        ] else ...[
                                          const SizedBox(width: 20),
                                        ],
                                      ],
                                    ),
                                  ),
                                ),
                              ),
                              if (index < list.length - 1)
                                const Divider(height: 1),
                            ],
                          ),
                        );
                      },
                    ),
          ),
        ],
      ),
    );
  }
}