mathtool/lib/tools/advanced_ide.dart

// tools/advanced_ide.dart
import 'package:flutter/material.dart';
import 'package:flutter_code_editor/flutter_code_editor.dart';
import 'package:flutter_js/flutter_js.dart';
import 'package:flutter/services.dart';
import 'package:highlight/languages/javascript.dart';
import 'package:path_provider/path_provider.dart';
import 'package:path/path.dart' as path;
import 'package:file_picker/file_picker.dart';
import 'dart:io';
import 'dart:convert';
import 'dart:typed_data';
import 'package:flutter_highlight/themes/github.dart'; // 确保这个导入存在
import 'package:flutter_highlight/themes/vs.dart'; // 添加更多主题选择
import 'package:flutter_highlight/themes/darcula.dart';

class AdvancedIdePage extends StatefulWidget {
  @override
  _AdvancedIdePageState createState() => _AdvancedIdePageState();
}

class _AdvancedIdePageState extends State<AdvancedIdePage> {
  late CodeController _codeController;
  JavascriptRuntime? _jsRuntime;
  String _output = '';
  bool _isExecuting = false;
  bool _isInitialized = false;
  Map<String, TextStyle> _currentTheme = githubTheme; // 默认主题

  @override
  void initState() {
    super.initState();
    _initializeCodeEditor();
  }

  Future<void> _initializeCodeEditor() async {
    try {
      _codeController = CodeController(
        text: _getExampleCode(),
        language: javascript,
      );

      setState(() {
        _isInitialized = true;
      });
    } catch (e) {
      print('初始化代码编辑器失败: $e');
      setState(() {
        _output = '初始化失败: $e';
        _isInitialized = true;
      });
    }
  }

  // 切换主题的方法
  void _changeTheme(String themeName) {
    setState(() {
      switch (themeName) {
        case 'github':
          _currentTheme = githubTheme;
          break;
        case 'vs':
          _currentTheme = vsTheme;
          break;
        case 'darcula':
          _currentTheme = darculaTheme;
          break;
        default:
          _currentTheme = githubTheme;
      }
    });
  }

  // 在 build 方法中，修改代码编辑器部分：
  @override
  Widget build(BuildContext context) {
    return Scaffold(
      appBar: AppBar(
        title: Text('JavaScript IDE', style: TextStyle(color: Colors.black)),
        backgroundColor: Colors.white,
        elevation: 1,
        actions: [
          // 主题切换按钮
          PopupMenuButton<String>(
            icon: Icon(Icons.palette, color: Colors.purple, size: 20),
            itemBuilder: (context) => [
              PopupMenuItem(
                value: 'github',
                child: Row(
                  children: [
                    Icon(Icons.brightness_5, color: Colors.blue),
                    SizedBox(width: 8),
                    Text('GitHub 主题'),
                  ],
                ),
              ),
              PopupMenuItem(
                value: 'vs',
                child: Row(
                  children: [
                    Icon(Icons.brightness_5, color: Colors.grey),
                    SizedBox(width: 8),
                    Text('VS 主题'),
                  ],
                ),
              ),
              PopupMenuItem(
                value: 'darcula',
                child: Row(
                  children: [
                    Icon(Icons.brightness_2, color: Colors.green),
                    SizedBox(width: 8),
                    Text('Darcula 主题'),
                  ],
                ),
              ),
            ],
            onSelected: _changeTheme,
            tooltip: '切换主题',
          ),
          IconButton(
            icon: Icon(Icons.save_as, color: Colors.blue, size: 20),
            onPressed: _saveAs,
            tooltip: '另存为',
          ),
          IconButton(
            icon: Icon(Icons.folder_open, color: Colors.blue, size: 20),
            onPressed: _loadFromFile,
            tooltip: '从文件加载',
          ),
          IconButton(
            icon: Icon(Icons.play_arrow, color: Colors.green, size: 20),
            onPressed: _isInitialized ? _executeCode : null,
            tooltip: '运行代码（全新环境）',
          ),
          IconButton(
            icon: Icon(Icons.clear, color: Colors.red, size: 20),
            onPressed: _clearOutput,
            tooltip: '清空输出',
          ),
          IconButton(
            icon: Icon(Icons.refresh, color: Colors.blue, size: 20),
            onPressed: _resetCode,
            tooltip: '重置代码',
          ),
        ],
      ),
      body: !_isInitialized
      ? Center(
        child: Column(
          mainAxisAlignment: MainAxisAlignment.center,
          children: [
            CircularProgressIndicator(),
            SizedBox(height: 16),
            Text('正在初始化代码编辑器...'),
          ],
        ),
      )
      : Column(
        children: [
          Expanded(
            flex: 3,
            child: Container(
              margin: EdgeInsets.all(8),
              decoration: BoxDecoration(
                border: Border.all(color: Colors.blue[300]!),
                borderRadius: BorderRadius.circular(8),
              ),
              child: Column(
                children: [
                  Container(
                    padding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
                    decoration: BoxDecoration(
                      color: Colors.blue[50],
                      borderRadius: BorderRadius.only(
                        topLeft: Radius.circular(8),
                        topRight: Radius.circular(8),
                      ),
                    ),
                    child: Row(
                      children: [
                        Icon(Icons.code, size: 16, color: Colors.blue[700]!),
                        SizedBox(width: 8),
                        Text(
                          'JavaScript 代码编辑器',
                          style: TextStyle(
                            fontSize: 14,
                            fontWeight: FontWeight.bold,
                            color: Colors.blue[700]!,
                          ),
                        ),
                        Spacer(),
                        // 显示当前主题
                        Container(
                          padding: EdgeInsets.symmetric(horizontal: 8, vertical: 4),
                          decoration: BoxDecoration(
                            color: Colors.white,
                            borderRadius: BorderRadius.circular(12),
                            border: Border.all(color: Colors.blue[300]!),
                          ),
                          child: Text(
                            _getCurrentThemeName(),
                            style: TextStyle(fontSize: 12, color: Colors.blue[700]!),
                          ),
                        ),
                        SizedBox(width: 8),
                        IconButton(
                          icon: Icon(Icons.info_outline, size: 16),
                          onPressed: () {
                            showDialog(
                              context: context,
                              builder: (context) => AlertDialog(
                                title: Text('使用说明'),
                                content: Text(
                                  '• 使用本功能需要了解js基本语法\n'
                                  '• math.js的版本是12.4.3\n'
                                  '• 每次运行代码都会创建全新的JavaScript环境\n'
                                  '• 之前的变量和状态不会保留\n'
                                  '• math.js库会在每次运行时重新加载\n'
                                  '• 执行速度可能稍慢（因为要重新初始化）\n'
                                  '• 使用console.log()输出结果\n'
                                  '• 点击调色板图标可以切换语法高亮主题'
                                ),
                                actions: [
                                  TextButton(
                                    onPressed: () => Navigator.pop(context),
                                    child: Text('确定'),
                                  ),
                                ],
                              ),
                            );
                          },
                          tooltip: '使用说明',
                        ),
                      ],
                    ),
                  ),
                  Expanded(
                    child: CodeTheme(  // 添加 CodeTheme 包装
                      data: CodeThemeData(styles: _currentTheme),
                      child: SingleChildScrollView(
                        child: CodeField(
                          controller: _codeController,
                          textStyle: TextStyle(fontFamily: 'Monospace', fontSize: 14),
                          gutterStyle: GutterStyle(
                            showLineNumbers: true,
                            showErrors: true,
                            showFoldingHandles: true,
                          ),
                        ),
                      ),
                    ),
                  ),
                ],
              ),
            ),
          ),

          SizedBox(height: 8),

          // 输出区域
          // 输出区域
Expanded(
  flex: 2,
  child: Container(
    margin: EdgeInsets.all(8),
    decoration: BoxDecoration(
      border: Border.all(color: Colors.grey[300]!),
      borderRadius: BorderRadius.circular(8),
    ),
    child: Column(
      children: [
        Container(
          padding: EdgeInsets.symmetric(horizontal: 16, vertical: 8),
          decoration: BoxDecoration(
            color: Colors.grey[100],
            borderRadius: BorderRadius.only(
              topLeft: Radius.circular(8),
              topRight: Radius.circular(8),
            ),
          ),
          child: Row(
            children: [
              Icon(Icons.output, size: 16, color: Colors.grey[600]!),
              SizedBox(width: 8),
              Text(
                '执行输出',
                style: TextStyle(
                  fontSize: 14,
                  fontWeight: FontWeight.bold,
                  color: Colors.grey[600]!,
                ),
              ),
              Spacer(),
              if (_isExecuting)
                Row(
                  children: [
                    SizedBox(
                      width: 16,
                      height: 16,
                      child: CircularProgressIndicator(strokeWidth: 2),
                    ),
                    SizedBox(width: 8),
                    Text(
                      '执行中...',
                      style: TextStyle(
                        fontSize: 12,
                        color: Colors.orange,
                      ),
                    ),
                  ],
                ),
            ],
          ),
        ),
        Expanded(
          child: SingleChildScrollView(
            padding: EdgeInsets.all(16),
            child: SelectableText(  // 修改这里：Text -> SelectableText
              _output,
              style: TextStyle(
                fontFamily: 'Monospace',
                fontSize: 12,
              ),
            ),
          ),
        ),
      ],
    ),
  ),
),
        ],
      ),
    );
  }

  // 获取当前主题名称
  String _getCurrentThemeName() {
    if (_currentTheme == githubTheme) return 'GitHub';
    if (_currentTheme == vsTheme) return 'VS';
    if (_currentTheme == darculaTheme) return 'Darcula';
    return '默认';
  }

  // 其他方法保持不变...
  Future<void> _initializeJsRuntime() async {
    try {
      if (_jsRuntime != null) {
        _jsRuntime!.dispose();
        _jsRuntime = null;
      }

      _jsRuntime = getJavascriptRuntime();

      // 设置非浏览器环境的console重写
      _setupConsoleOverride();

      // 加载math.js库
      final String mathJsCode = await rootBundle.loadString('assets/javascripts/math.js');
      final JsEvalResult mathResult = _jsRuntime!.evaluate(mathJsCode);

      if (mathResult.isError) {
        print('加载math.js失败: ${mathResult.stringResult}');
        throw Exception('加载math.js失败: ${mathResult.stringResult}');
      } else {
        print('math.js加载成功');
      }
    } catch (e) {
      print('初始化JavaScript运行时失败: $e');
      if (_jsRuntime != null) {
        _jsRuntime!.dispose();
        _jsRuntime = null;
      }
      throw e;
    }
  }

  void _setupConsoleOverride() {
  if (_jsRuntime == null) return;
  
  const String consoleOverride = '''
    // 创建全局输出数组
    var __consoleOutput = [];
    
    // 保存原始console方法（如果存在）
    var originalConsole = {
      log: typeof console !== 'undefined' ? console.log : function() {},
      warn: typeof console !== 'undefined' ? console.warn : function() {},
      error: typeof console !== 'undefined' ? console.error : function() {},
      info: typeof console !== 'undefined' ? console.info : function() {}
    };
    
    // 重写console方法
    if (typeof console !== 'undefined') {
      console.log = function(...args) {
        originalConsole.log.apply(console, args);
        const message = args.map(arg => 
          typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
        ).join(' ');
        __consoleOutput.push('[LOG] ' + message);
      };
      
      console.warn = function(...args) {
        originalConsole.warn.apply(console, args);
        const message = args.map(arg => 
          typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
        ).join(' ');
        __consoleOutput.push('[WARN] ' + message);
      };
      
      console.error = function(...args) {
        originalConsole.error.apply(console, args);
        const message = args.map(arg => 
          typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
        ).join(' ');
        __consoleOutput.push('[ERROR] ' + message);
      };
      
      console.info = function(...args) {
        originalConsole.info.apply(console, args);
        const message = args.map(arg => 
          typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
        ).join(' ');
        __consoleOutput.push('[INFO] ' + message);
      };
    } else {
      // 如果console不存在，创建它
      var console = {
        log: function(...args) {
          const message = args.map(arg => 
            typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
          ).join(' ');
          __consoleOutput.push('[LOG] ' + message);
        },
        warn: function(...args) {
          const message = args.map(arg => 
            typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
          ).join(' ');
          __consoleOutput.push('[WARN] ' + message);
        },
        error: function(...args) {
          const message = args.map(arg => 
            typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
          ).join(' ');
          __consoleOutput.push('[ERROR] ' + message);
        },
        info: function(...args) {
          const message = args.map(arg => 
            typeof arg === 'object' ? JSON.stringify(arg, null, 2) : String(arg)
          ).join(' ');
          __consoleOutput.push('[INFO] ' + message);
        }
      };
    }
    
    // 清空输出数组的方法
    var __clearConsoleOutput = function() {
      __consoleOutput = [];
    };
    
    // 获取输出内容的方法（修复换行问题）
    var __getConsoleOutput = function() {
      return __consoleOutput.join('\\n'); // 关键修复：使用单个换行符
    };
  ''';
  
  _jsRuntime!.evaluate(consoleOverride);
}

  @override
  void dispose() {
    _codeController.dispose();
    if (_jsRuntime != null) {
      _jsRuntime!.dispose();
      _jsRuntime = null;
    }
    super.dispose();
  }

  String _getExampleCode() {
    return '''// JavaScript IDE
// math.js 库已自动加载，可以使用所有数学函数

// 创建共享的作用域对象
const scope = {};

// 1. 基本算术运算
console.log('1. 基本算术运算:');
console.log('2 + 3 =', math.evaluate('2 + 3'));
console.log('10 - 4 =', math.evaluate('10 - 4'));
console.log('6 * 7 =', math.evaluate('6 * 7'));
console.log('15 / 3 =', math.evaluate('15 / 3'));
console.log('2^8 =', math.evaluate('2^8'));
console.log('10 % 3 =', math.evaluate('10 % 3'));
console.log('');

// 2. 复杂表达式和运算符优先级
console.log('2. 复杂表达式和运算符优先级:');
console.log('2 + 3 * 4 =', math.evaluate('2 + 3 * 4'));
console.log('(2 + 3) * 4 =', math.evaluate('(2 + 3) * 4'));
console.log('3 + 4 * 2 / (1 - 5)^2 =', math.evaluate('3 + 4 * 2 / (1 - 5)^2'));
console.log('');

// 3. 数学常数
console.log('3. 数学常数:');
console.log('pi =', math.evaluate('pi'));
console.log('e =', math.evaluate('e'));
console.log('Infinity =', math.evaluate('Infinity'));
console.log('');

// 4. 内置函数
console.log('4. 内置函数:');
console.log('sqrt(25) =', math.evaluate('sqrt(25)'));
console.log('sin(pi/2) =', math.evaluate('sin(pi/2)'));
console.log('cos(pi) =', math.evaluate('cos(pi)'));
console.log('tan(0) =', math.evaluate('tan(0)'));
console.log('log(100) =', math.evaluate('log(100)'));
console.log('log(100, 10) =', math.evaluate('log(100, 10)'));
console.log('exp(2) =', math.evaluate('exp(2)'));
console.log('abs(-5.5) =', math.evaluate('abs(-5.5)'));
console.log('round(3.7) =', math.evaluate('round(3.7)'));
console.log('floor(4.9) =', math.evaluate('floor(4.9)'));
console.log('ceil(4.1) =', math.evaluate('ceil(4.1)'));
console.log('max(1, 5, 3) =', math.evaluate('max(1, 5, 3)'));
console.log('min(1, 5, 3) =', math.evaluate('min(1, 5, 3)'));
console.log('');

// 5. 变量和赋值
console.log('5. 变量和赋值:');
console.log('x = 5:', math.evaluate('x = 5', scope));
console.log('y = x + 3:', math.evaluate('y = x + 3', scope));
console.log('x * y =', math.evaluate('x * y', scope));
console.log('');

// 6. 矩阵和数组运算
console.log('6. 矩阵和数组运算:');
console.log('[1, 2, 3] =', math.evaluate('[1, 2, 3]'));
console.log('[[1,2],[3,4]] =', math.evaluate('[[1,2],[3,4]]'));
console.log('size([1,2,3,4]) =', math.evaluate('size([1,2,3,4])'));
console.log('[1,2,3] + [4,5,6] =', math.evaluate('[1,2,3] + [4,5,6]'));
console.log('2 * [1,2,3] =', math.evaluate('2 * [1,2,3]'));
console.log('');

// 7. 复数运算
console.log('7. 复数运算:');
console.log('2 + 3i =', math.evaluate('2 + 3i'));
console.log('re(2+3i) =', math.evaluate('re(2+3i)'));
console.log('im(2+3i) =', math.evaluate('im(2+3i)'));
console.log('');

// 8. 单位换算
console.log('8. 单位换算:');
console.log('5 inch to cm =', math.evaluate('5 inch to cm'));
console.log('100 km/hour to m/s =', math.evaluate('100 km/hour to m/s'));
console.log('');

// 9. 布尔运算和比较
console.log('9. 布尔运算和比较:');
console.log('2 > 3 =', math.evaluate('2 > 3'));
console.log('5 == 5 =', math.evaluate('5 == 5'));
console.log('3 != 4 =', math.evaluate('3 != 4'));
console.log('true and false =', math.evaluate('true and false'));
console.log('true or false =', math.evaluate('true or false'));
console.log('not true =', math.evaluate('not true'));
console.log('');

// 10. 条件表达式
console.log('10. 条件表达式:');
console.log('2 > 3 ? "yes" : "no" =', math.evaluate('2 > 3 ? "yes" : "no"'));
console.log('x > 0 ? "positive" : "non-positive" =', math.evaluate('x > 0 ? "positive" : "non-positive"', scope));
console.log('');

// 11. 字符串操作
console.log('11. 字符串操作:');
console.log('concat("hello", " ", "world") =', math.evaluate('concat("hello", " ", "world")'));
console.log('');

// 12. 自定义函数
console.log('12. 自定义函数:');
math.evaluate('f(x) = x^2 + 2*x + 1', scope);
console.log('f(3) =', math.evaluate('f(3)', scope));
console.log('f(5) =', math.evaluate('f(5)', scope));
console.log('');

// 13. 统计函数
console.log('13. 统计函数:');
console.log('mean([1, 2, 3, 4, 5]) =', math.evaluate('mean([1, 2, 3, 4, 5])'));
console.log('median([1, 2, 3, 4, 5]) =', math.evaluate('median([1, 2, 3, 4, 5])'));
console.log('std([1, 2, 3, 4, 5]) =', math.evaluate('std([1, 2, 3, 4, 5])'));
console.log('sum([1, 2, 3, 4, 5]) =', math.evaluate('sum([1, 2, 3, 4, 5])'));
console.log('');

// 14. 大数运算
console.log('14. 大数运算:');
console.log('123456789012345678901234567890 + 1 =', math.evaluate('123456789012345678901234567890 + 1'));
console.log('2^100 =', math.evaluate('2^100'));
console.log('');

// 15. 链式操作示例
console.log('15. 链式操作示例:');
try {
    const result = math.chain(5)
        .add(3)
        .multiply(2)
        .divide(4)
        .done();
    console.log('(5 + 3) * 2 / 4 =', result);
} catch (error) {
    console.log('链式操作出错:', error.message);
}
console.log('');

// 16. 多表达式执行
console.log('16. 多表达式执行:');
const multiResult = math.evaluate(`
    a = 10;
    b = 20;
    c = a + b;
    c * 2
`);
console.log('多表达式结果:', multiResult);
console.log('');

// 17. 数值格式和精度
console.log('17. 数值格式和精度:');
console.log('format(1/3, 14) =', math.evaluate('format(1/3, 14)'));
console.log('');

// 18. 角度和弧度转换
console.log('18. 角度和弧度转换:');
console.log('sin(90 deg) =', math.evaluate('sin(90 deg)'));
console.log('cos(180 deg) =', math.evaluate('cos(180 deg)'));
console.log('');

// 19. 随机数生成
console.log('19. 随机数生成:');
console.log('random() =', math.evaluate('random()'));
console.log('random(10) =', math.evaluate('random(10)'));
console.log('randomInt(10) =', math.evaluate('randomInt(10)'));
console.log('random(5, 10) =', math.evaluate('random(5, 10)'));
console.log('');

// 20. 位运算
console.log('20. 位运算:');
console.log('5 & 3 =', math.evaluate('5 & 3'));
console.log('5 | 3 =', math.evaluate('5 | 3'));
console.log('');

// 21. 阶乘和组合
console.log('21. 阶乘和组合:');
console.log('5! =', math.evaluate('5!'));
console.log('combinations(5, 2) =', math.evaluate('combinations(5, 2)'));
console.log('');

// 22. 进制转换
console.log('22. 进制转换:');
console.log('0b1010 =', math.evaluate('0b1010'));
console.log('0o777 =', math.evaluate('0o777'));
console.log('0xFF =', math.evaluate('0xFF'));
console.log('');

// 23. 关系运算
console.log('23. 关系运算:');
console.log('2 < 3 =', math.evaluate('2 < 3'));
console.log('2 <= 2 =', math.evaluate('2 <= 2'));
console.log('3 >= 4 =', math.evaluate('3 >= 4'));
console.log('');

// 24. 分数运算
console.log('24. 分数运算:');
console.log("4/8 + 1 -1/3 = ", math.simplify('4/8 + 1 -1/3').toString());
''';
  }

  Future<void> _saveAs() async {
  try {
    final String codeText = _codeController.text;
    final Uint8List codeBytes = Uint8List.fromList(utf8.encode(codeText));

    String? outputPath = await FilePicker.platform.saveFile(
      dialogTitle: '另存为JavaScript文件',
      fileName: 'javascript_code.js',
      allowedExtensions: ['js'],
      bytes: codeBytes,
    );
    
    if (outputPath != null) {
      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('文件已保存'),
            backgroundColor: Colors.green,
          ),
        );
      }
    }
  } catch (e) {
    print('保存文件错误: $e');
    if (mounted) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text('保存文件失败: $e'),
          backgroundColor: Colors.red,
        ),
      );
    }
  }
}

  Future<void> _loadFromFile() async {
  try {
    FilePickerResult? result = await FilePicker.platform.pickFiles(
      type: FileType.custom,
      allowedExtensions: ['js'],
      dialogTitle: '选择JavaScript文件',
    );
    
    if (result != null && result.files.isNotEmpty) {
      final PlatformFile platformFile = result.files.single;
      
      if (platformFile.path == null && platformFile.bytes == null) {
        if (mounted) {
          ScaffoldMessenger.of(context).showSnackBar(
            SnackBar(
              content: Text('无法获取文件内容'),
              backgroundColor: Colors.red,
            ),
          );
        }
        return;
      }
      
      // 读取文件内容
      String contents;
      if (platformFile.bytes != null) {
        // 直接从字节数据读取
        contents = utf8.decode(platformFile.bytes!);
      } else {
        // 从文件路径读取
        final file = File(platformFile.path!);
        contents = await file.readAsString();
      }
      
      setState(() {
        _codeController.text = contents;
        _output = '文件已加载: ${platformFile.name}';
      });

      if (mounted) {
        ScaffoldMessenger.of(context).showSnackBar(
          SnackBar(
            content: Text('文件加载成功: ${platformFile.name}'),
            backgroundColor: Colors.green,
          ),
        );
      }
    }
  } catch (e) {
    print('加载文件错误: $e');
    if (mounted) {
      ScaffoldMessenger.of(context).showSnackBar(
        SnackBar(
          content: Text('加载文件失败: $e'),
          backgroundColor: Colors.red,
        ),
      );
    }
  }
}

  Future<void> _executeCode() async {
    if (_isExecuting || !_isInitialized) return;

    setState(() {
      _isExecuting = true;
      _output = '正在初始化JavaScript环境...\\n';
    });

    try {
      await _initializeJsRuntime();

      final String code = _codeController.text;

      setState(() {
        _output += '执行代码中...\\n';
      });

      _jsRuntime!.evaluate('__clearConsoleOutput();');

      final JsEvalResult result = _jsRuntime!.evaluate(code);

      final JsEvalResult consoleOutputResult = _jsRuntime!.evaluate('__getConsoleOutput();');
      final String consoleOutput = consoleOutputResult.stringResult;

      setState(() {
        _output = '执行完成!\n';
        
        if (result.isError) {
          _output += '❌ 执行错误: ${result.stringResult}\n';
        } else {
          _output += '✅ 执行成功!\n';
          if (result.stringResult != 'null' && result.stringResult.isNotEmpty) {
            _output += '📊 返回值: ${result.stringResult}\n';
          } else {
            _output += '\n';
          }
        }
        
        if (consoleOutput.isNotEmpty) {
          _output += '--- 控制台输出 ---\n$consoleOutput';
        } else {
          _output += 'ℹ️ 没有控制台输出';
        }
      });
    } catch (e) {
      setState(() {
        _output = '执行出错: $e';
      });
    } finally {
      setState(() {
        _isExecuting = false;
      });
    }
  }

  void _clearOutput() {
    setState(() {
      _output = '';
    });
  }

  void _resetCode() {
    setState(() {
      _codeController.text = _getExampleCode();
      _output = '';
    });
  }

  void _injectMathJs() async {
    try {
      await _initializeJsRuntime();
      
      setState(() {
        _output = 'math.js重新加载成功! JavaScript环境已重置。';
      });
    } catch (e) {
      setState(() {
        _output = '重新加载math.js失败: $e';
      });
    }
  }
}