add temporary file manager

tests/Feature/FileLinkControllerTest.php

@@ -0,0 +1,53 @@
+<?php
+
+namespace Tests\Feature;
+
+use Illuminate\Http\UploadedFile;
+use Illuminate\Support\Facades\Config;
+use Illuminate\Support\Facades\Storage;
+use Tests\TestCase;
+
+class FileLinkControllerTest extends TestCase
+{
+    public function test_upload_is_unavailable_when_feature_is_disabled(): void
+    {
+        Config::set('file_links.enabled', false);
+
+        $response = $this->postJson('/api/files/upload', [
+            'file' => UploadedFile::fake()->create('sample.txt', 1),
+        ]);
+
+        $response->assertNotFound();
+    }
+
+    public function test_it_uploads_file_and_downloads_it_via_temporary_signed_link(): void
+    {
+        Storage::fake('local');
+        Config::set('file_links.enabled', true);
+        Config::set('file_links.disk', 'local');
+        Config::set('file_links.directory', 'temporary-links');
+
+        $response = $this->postJson('/api/files/upload', [
+            'file' => UploadedFile::fake()->create('sample.txt', 1),
+        ]);
+
+        $response->assertOk();
+        $response->assertJsonStructure(['path', 'expiresAt', 'url']);
+
+        $path = $response->json('path');
+        Storage::disk('local')->assertExists($path);
+
+        $url = $response->json('url');
+        $parts = parse_url($url);
+        $routePath = $parts['path'];
+        if (isset($parts['query'])) {
+            $routePath .= '?' . $parts['query'];
+        }
+
+        $downloadResponse = $this->get($routePath);
+
+        $downloadResponse->assertOk();
+        $downloadResponse->assertHeader('content-disposition');
+    }
+}
+