<?php
declare(strict_types=1);
namespace Butschster\ContextGenerator\McpServer\Action\Tools\Filesystem;
use Butschster\ContextGenerator\Lib\Git\CommandsExecutorInterface;
use Butschster\ContextGenerator\Lib\Git\Exception\GitCommandException;
use Butschster\ContextGenerator\McpServer\Action\Tools\Filesystem\Dto\FileApplyPatchRequest;
use Butschster\ContextGenerator\McpServer\Attribute\InputSchema;
use Butschster\ContextGenerator\McpServer\Attribute\Tool;
use Butschster\ContextGenerator\McpServer\Routing\Attribute\Post;
use Mcp\Types\CallToolResult;
use Mcp\Types\TextContent;
use Psr\Log\LoggerInterface;
#[Tool(
name: 'file-apply-patch',
description: 'Apply a git patch to a file within the project',
)]
#[InputSchema(class: FileApplyPatchRequest::class)]
final readonly class FileApplyPatchAction
{
public function __construct(
private LoggerInterface $logger,
private CommandsExecutorInterface $commandsExecutor,
) {}
#[Post(path: '/tools/call/file-apply-patch', name: 'tools.file-apply-patch')]
public function __invoke(FileApplyPatchRequest $request): CallToolResult
{
$this->logger->info('Processing file-apply-patch tool');
// Get params from the parsed body for POST requests
$path = $request->path;
$patch = $request->patch;
// Validate patch format
if (!\str_starts_with($patch, 'diff --git a/')) {
return new CallToolResult([
new TextContent(
text: 'Error: Invalid patch format. The patch must start with "diff --git a/".',
),
], isError: true);
}
if (empty($path)) {
return new CallToolResult([
new TextContent(
text: 'Error: Missing path parameter',
),
], isError: true);
}
if (empty($patch)) {
return new CallToolResult([
new TextContent(
text: 'Error: Missing patch parameter',
),
], isError: true);
}
try {
$result = $this->commandsExecutor->applyPatch($path, $patch);
return new CallToolResult([
new TextContent(
text: $result,
),
]);
} catch (GitCommandException $e) {
$this->logger->error('Error applying git patch', [
'path' => $path,
'error' => $e->getMessage(),
'code' => $e->getCode(),
]);
return new CallToolResult([
new TextContent(
text: 'Error: ' . $e->getMessage(),
),
], isError: true);
} catch (\Throwable $e) {
$this->logger->error('Unexpected error applying git patch', [
'path' => $path,
'error' => $e->getMessage(),
]);
return new CallToolResult([
new TextContent(
text: 'Error: ' . $e->getMessage(),
),
], isError: true);
}
}
}
