import 'package:chicken_farm/core/api/api_client.dart';
import 'package:chicken_farm/core/config/app_config.dart';
import 'package:chicken_farm/core/utils/toast.dart';
import 'package:flutter/material.dart';

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

  @override
  State<ConfigDialog> createState() => _ConfigDialogState();
}

class _ConfigDialogState extends State<ConfigDialog> {
  final _formKey = GlobalKey<FormState>();
  late TextEditingController _baseUrlController;
  late TextEditingController _clientIdController;
  bool _isSaving = false; // 添加保存状态标识

  @override
  void initState() {
    super.initState();
    _baseUrlController = TextEditingController(text: AppConfig.baseUrl);
    _clientIdController = TextEditingController(text: AppConfig.clientId);
  }

  @override
  void dispose() {
    _baseUrlController.dispose();
    _clientIdController.dispose();
    super.dispose();
  }

  @override
  Widget build(BuildContext context) {
    return AlertDialog(
      title: const Text('配置服务器'),
      content: SizedBox(
        width: MediaQuery.of(context).size.width * 0.8,
        child: Form(
          key: _formKey,
          child: Column(
            mainAxisSize: MainAxisSize.min,
            children: [
              TextFormField(
                controller: _baseUrlController,
                decoration: const InputDecoration(
                  labelText: 'Base URL',
                  hintText: '例如: http://localhost:8080',
                  border: OutlineInputBorder(),
                ),
                validator: (value) {
                  if (value == null || value.isEmpty) {
                    return '请输入Base URL';
                  }
                  if (!value.startsWith('http')) {
                    return '请输入有效的URL地址';
                  }
                  return null;
                },
              ),
              const SizedBox(height: 16),
              TextFormField(
                controller: _clientIdController,
                decoration: const InputDecoration(
                  labelText: 'Client ID',
                  border: OutlineInputBorder(),
                ),
                validator: (value) {
                  if (value == null || value.isEmpty) {
                    return '请输入Client ID';
                  }
                  return null;
                },
              ),
            ],
          ),
        ),
      ),
      actions: [
        TextButton(
          onPressed: _isSaving ? null : () {
            // 保存过程中禁用取消按钮
            Navigator.of(context).pop();
          },
          child: const Text('取消'),
        ),
        ElevatedButton(
          onPressed: _isSaving ? null : () async {
            // 保存过程中禁用保存按钮
            if (_formKey.currentState!.validate()) {
              // 保存前取消当前焦点，避免输入法相关问题
              FocusManager.instance.primaryFocus?.unfocus();
              
              setState(() {
                _isSaving = true;
              });
              
              try {
                // 稍微延迟一下确保焦点完全失去
                await Future.delayed(const Duration(milliseconds: 50));
                
                // 保存配置
                await AppConfig.save(
                  _baseUrlController.text.trim(),
                  _clientIdController.text.trim(),
                );

                // 重新初始化API客户端
                ApiClient.clearDio();

                if (context.mounted) {
                  Navigator.of(context).pop(true);
                  ToastUtil.success('配置保存成功');
                }
              } catch (e) {
                // 发生错误时显示提示
                if (context.mounted) {
                  ToastUtil.error('保存配置失败: ${e.toString()}');
                }
                setState(() {
                  _isSaving = false;
                });
              }
            }
          },
          child: _isSaving 
              ? const SizedBox(
                  width: 20,
                  height: 20,
                  child: CircularProgressIndicator(strokeWidth: 2, color: Colors.white),
                )
              : const Text('保存'),
        ),
      ],
    );
  }
}