fix(stdin): improve error handling and prevent file collisions

Author: A909M

app/Actions/FixCode.php

@@ -133,11 +133,16 @@ private function handleStdinOutput()
     {
         $tempFile = Project::getStdinTempFile();
 
-        if ($tempFile && file_exists($tempFile)) {
+        if (! empty($tempFile) && file_exists($tempFile)) {
             if (($formattedContent = file_get_contents($tempFile)) !== false) {
-                fwrite(STDOUT, $formattedContent);
+                $bytesWritten = fwrite(STDOUT, $formattedContent);
+                if ($bytesWritten === false) {
+                    error_log('Failed to write formatted content to STDOUT');
+                }
             }
 
+            Project::cleanupStdinTempFile();
+        } elseif (! empty($tempFile)) {
             Project::cleanupStdinTempFile();
         }
     }

app/Project.php

@@ -101,10 +101,12 @@ public static function resolveStdinPath($filepath = null)
 
         // If a filepath is provided, use it for better config resolution
         if ($filepath) {
-            // Create temp file with same name in temp directory
             $tempDir = sys_get_temp_dir();
             $fileName = basename($filepath);
-            static::$stdinTempFile = $tempDir.DIRECTORY_SEPARATOR.$fileName;
+            $uniqueSuffix = '_'.uniqid().'_'.getmypid();
+            $pathInfo = pathinfo($fileName);
+            $uniqueFileName = $pathInfo['filename'].$uniqueSuffix.(isset($pathInfo['extension']) ? '.'.$pathInfo['extension'] : '');
+            static::$stdinTempFile = $tempDir.DIRECTORY_SEPARATOR.$uniqueFileName;
 
             if (file_put_contents(static::$stdinTempFile, $content) === false) {
                 abort(1, "Failed to create temporary file for stdin content: {$filepath}");
@@ -132,6 +134,11 @@ public static function resolveStdinPath($filepath = null)
     protected static function isStdinAvailable()
     {
         $stdin = fopen('php://stdin', 'r');
+
+        if ($stdin === false) {
+            return false;
+        }
+
         $status = stream_get_meta_data($stdin);
         fclose($stdin);
 
@@ -145,7 +152,13 @@ protected static function isStdinAvailable()
      */
     protected static function readStdinContent()
     {
-        return stream_get_contents(STDIN);
+        $content = stream_get_contents(STDIN);
+
+        if ($content === false) {
+            abort(1, 'Failed to read content from stdin.');
+        }
+
+        return $content;
     }
 
     /**