/// 时间: 2026-03-29
/// 功能: 填写投票凭证弹窗组件
/// 介绍: 提供投票功能的用户凭证填写功能

import 'package:flutter/material.dart';
import '../../../constants/app_constants.dart';
import '../../../utils/http/vote_api.dart';

class LoginRegisterDialog extends StatefulWidget {
  final VoidCallback? onLoginSuccess;

  const LoginRegisterDialog({super.key, this.onLoginSuccess});

  @override
  State<LoginRegisterDialog> createState() => _LoginRegisterDialogState();
}

class _LoginRegisterDialogState extends State<LoginRegisterDialog> {
  final _formKey = GlobalKey<FormState>();
  final _usernameController = TextEditingController();
  bool _isLoading = false;

  @override
  void dispose() {
    _usernameController.dispose();
    super.dispose();
  }

  String? _validateUsername(String? value) {
    if (value == null || value.isEmpty) {
      return '请输入投票凭证';
    }
    final phoneRegex = RegExp(r'^1[3456789]\d{9}$');
    final emailRegex = RegExp(
      r'^[a-zA-Z0-9._%+-]+@[a-zA-Z0-9.-]+\.[a-zA-Z]{2,}$',
    );
    final wechatRegex = RegExp(r'^[a-zA-Z0-9_-]{6,20}$');
    if (!phoneRegex.hasMatch(value) &&
        !emailRegex.hasMatch(value) &&
        !wechatRegex.hasMatch(value)) {
      return '请输入正确的手机号、邮箱或微信号';
    }
    return null;
  }

  Future<void> _submit() async {
    if (!_formKey.currentState!.validate()) {
      return;
    }

    setState(() {
      _isLoading = true;
    });

    try {
      final deviceType = await VoteApi.getDeviceType();
      final username = _usernameController.text.trim();
      const password = '123456';

      try {
        await VoteApi.login(username: username, password: password);
        if (mounted) {
          Navigator.pop(context);
          widget.onLoginSuccess?.call();
          ScaffoldMessenger.of(context).showSnackBar(
            const SnackBar(
              content: Text('验证成功'),
              backgroundColor: AppConstants.successColor,
            ),
          );
        }
      } catch (loginError) {
        await VoteApi.register(
          username: username,
          password: password,
          userIdentifier: deviceType,
        );
        await VoteApi.login(username: username, password: password);
        if (mounted) {
          Navigator.pop(context);
          widget.onLoginSuccess?.call();
          ScaffoldMessenger.of(context).showSnackBar(
            const SnackBar(
              content: Text('注册并验证成功'),
              backgroundColor: AppConstants.successColor,
            ),
          );
        }
      }
    } catch (e) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text(e.toString().replaceAll('Exception: ', '')),
            backgroundColor: AppConstants.errorColor,
          ),
        );
      }
    } finally {
      if (mounted) {
        setState(() {
          _isLoading = false;
        });
      }
    }
  }

  @override
  Widget build(BuildContext context) {
    return Dialog(
      shape: RoundedRectangleBorder(borderRadius: BorderRadius.circular(16)),
      child: Container(
        padding: const EdgeInsets.all(20),
        child: Column(
          mainAxisSize: MainAxisSize.min,
          children: [
            Row(
              mainAxisAlignment: MainAxisAlignment.spaceBetween,
              children: [
                const Text(
                  '填写投票凭证',
                  style: TextStyle(fontSize: 20, fontWeight: FontWeight.bold),
                ),
                IconButton(
                  icon: const Icon(Icons.close),
                  onPressed: () => Navigator.pop(context),
                ),
              ],
            ),
            const SizedBox(height: 20),
            Form(
              key: _formKey,
              child: Column(
                children: [
                  TextFormField(
                    controller: _usernameController,
                    decoration: const InputDecoration(
                      labelText: '投票凭证',
                      hintText: '手机号/邮箱/微信号',
                      border: OutlineInputBorder(),
                      prefixIcon: Icon(Icons.person),
                    ),
                    validator: _validateUsername,
                  ),
                  const SizedBox(height: 24),
                  SizedBox(
                    width: double.infinity,
                    child: ElevatedButton(
                      onPressed: _isLoading ? null : _submit,
                      style: ElevatedButton.styleFrom(
                        backgroundColor: AppConstants.primaryColor,
                        padding: const EdgeInsets.symmetric(vertical: 14),
                        shape: RoundedRectangleBorder(
                          borderRadius: BorderRadius.circular(8),
                        ),
                      ),
                      child: _isLoading
                          ? const SizedBox(
                              width: 20,
                              height: 20,
                              child: CircularProgressIndicator(
                                strokeWidth: 2,
                                valueColor: AlwaysStoppedAnimation<Color>(
                                  Colors.white,
                                ),
                              ),
                            )
                          : const Text('验证', style: TextStyle(fontSize: 16)),
                    ),
                  ),
                ],
              ),
            ),
          ],
        ),
      ),
    );
  }
}