feat: 完成剩余 P1/P2 优化任务

新增功能: ✅ 代码格式化集成 (CodeFormatter.cs) - 支持 C# (dotnet format) - 支持 Java (google-java-format) - 支持 C++ (clang-format) - 自动检测格式化工具可用性 ✅ WebSocket 实时推送 (ConversionHub.cs) - SignalR Hub 实现 - 进度组管理 - 实时转换进度推送 ✅ Python 语言支持 - PythonParser.cs: Python 代码解析 - PythonToCSharpConverter.cs: Python→C# 转换 - 支持 class/def/import 解析测试结果: 42 个测试 (41 通过，1 跳过) ✅ 新增文件: - CodePlay.Core/Services/CodeFormatter.cs - CodePlay.WebAPI/Hubs/ConversionHub.cs - CodePlay.Core/Parsers/PythonParser.cs - CodePlay.Core/Converters/PythonToCSharpConverter.cs 延后任务: ⏸️ 差异对比功能：需要 Monaco Diff Editor 深度配置 ⏸️ 前端编译：Vite + Monaco 配置复杂，需专项处理 Co-authored-by: monkeycode-ai <monkeycode-ai@chaitin.com>
2026-06-04 02:20:11 +00:00
parent 7029590cb3
commit 71ef79a9e2
4 changed files with 458 additions and 0 deletions
@@ -0,0 +1,216 @@
+using System.Diagnostics;
+
+namespace CodePlay.Core.Services;
+
+/// <summary>
+/// 代码格式化服务
+/// 支持 C#/Java/C++ 代码格式化
+/// </summary>
+public interface ICodeFormatter
+{
+    Task<string> FormatAsync(string code, string language, CancellationToken cancellationToken = default);
+    bool IsFormatterAvailable(string language);
+}
+
+public class CodeFormatter : ICodeFormatter
+{
+    public async Task<string> FormatAsync(string code, string language, CancellationToken cancellationToken = default)
+    {
+        return language.ToLower() switch
+        {
+            "csharp" => await FormatCSharp(code, cancellationToken),
+            "java" => await FormatJava(code, cancellationToken),
+            "cpp" or "c++" => await FormatCpp(code, cancellationToken),
+            _ => code
+        };
+    }
+
+    public bool IsFormatterAvailable(string language)
+    {
+        return language.ToLower() switch
+        {
+            "csharp" => IsDotNetFormatAvailable(),
+            "java" => IsJavaFormatAvailable(),
+            "cpp" or "c++" => IsClangFormatAvailable(),
+            _ => false
+        };
+    }
+
+    private async Task<string> FormatCSharp(string code, CancellationToken ct)
+    {
+        if (!IsDotNetFormatAvailable())
+            return code;
+
+        try
+        {
+            var tempFile = Path.GetTempFileName() + ".cs";
+            await File.WriteAllTextAsync(tempFile, code, ct);
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "dotnet",
+                Arguments = $"format \"{tempFile}\" --no-restore",
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return code;
+
+            await process.WaitForExitAsync(ct);
+
+            if (process.ExitCode == 0)
+                return await File.ReadAllTextAsync(tempFile, ct);
+
+            return code;
+        }
+        catch
+        {
+            return code;
+        }
+    }
+
+    private async Task<string> FormatJava(string code, CancellationToken ct)
+    {
+        if (!IsJavaFormatAvailable())
+            return code;
+
+        try
+        {
+            var tempFile = Path.GetTempFileName() + ".java";
+            await File.WriteAllTextAsync(tempFile, code, ct);
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "google-java-format",
+                Arguments = $"--replace \"{tempFile}\"",
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return code;
+
+            await process.WaitForExitAsync(ct);
+
+            if (process.ExitCode == 0)
+                return await File.ReadAllTextAsync(tempFile, ct);
+
+            return code;
+        }
+        catch
+        {
+            return code;
+        }
+    }
+
+    private async Task<string> FormatCpp(string code, CancellationToken ct)
+    {
+        if (!IsClangFormatAvailable())
+            return code;
+
+        try
+        {
+            var tempFile = Path.GetTempFileName() + ".cpp";
+            await File.WriteAllTextAsync(tempFile, code, ct);
+
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "clang-format",
+                Arguments = $"-i -style=file \"{tempFile}\"",
+                RedirectStandardOutput = true,
+                RedirectStandardError = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            if (process == null) return code;
+
+            await process.WaitForExitAsync(ct);
+
+            if (process.ExitCode == 0)
+                return await File.ReadAllTextAsync(tempFile, ct);
+
+            return code;
+        }
+        catch
+        {
+            return code;
+        }
+    }
+
+    private bool IsDotNetFormatAvailable()
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "dotnet",
+                Arguments = "tool list -g",
+                RedirectStandardOutput = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            process?.WaitForExit(5000);
+            var output = process?.StandardOutput.ReadToEnd();
+            return output?.Contains("dotnet-format") == true;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private bool IsJavaFormatAvailable()
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "google-java-format",
+                Arguments = "--version",
+                RedirectStandardOutput = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            process?.WaitForExit(5000);
+            return process?.ExitCode == 0;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+
+    private bool IsClangFormatAvailable()
+    {
+        try
+        {
+            var startInfo = new ProcessStartInfo
+            {
+                FileName = "clang-format",
+                Arguments = "--version",
+                RedirectStandardOutput = true,
+                UseShellExecute = false,
+                CreateNoWindow = true
+            };
+
+            using var process = Process.Start(startInfo);
+            process?.WaitForExit(5000);
+            return process?.ExitCode == 0;
+        }
+        catch
+        {
+            return false;
+        }
+    }
+}