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app/Http/Controllers/User/AudioController.php

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+<?php
+
+namespace App\Http\Controllers\User;
+
+use App\Http\Controllers\Controller;
+use App\Models\TranscriptionProject;
+use App\Services\StorageService;
+use Symfony\Component\HttpFoundation\StreamedResponse;
+
+class AudioController extends Controller
+{
+    public function __construct(private readonly StorageService $storage) {}
+
+    public function stream(TranscriptionProject $project): StreamedResponse
+    {
+        $this->authorize('viewAudio', $project);
+
+        $path = $project->stored_audio_path;
+
+        abort_unless($this->storage->exists($path), 404);
+
+        $size     = $this->storage->size($path);
+        $mimeType = $project->mime_type;
+
+        return response()->stream(function () use ($path) {
+            $stream = $this->storage->readStream($path);
+            if ($stream) {
+                fpassthru($stream);
+                fclose($stream);
+            }
+        }, 200, [
+            'Content-Type'        => $mimeType,
+            'Content-Length'      => $size,
+            'Content-Disposition' => 'inline',
+            'Cache-Control'       => 'no-store, no-cache, private, must-revalidate',
+            'X-Content-Type-Options' => 'nosniff',
+            'Accept-Ranges'       => 'bytes',
+        ]);
+    }
+}