feat: implement preview manager

Signed-off-by: Sebastian Krupinski <krupinski01@gmail.com>

tests/php/Unit/Preview/PreviewContractsTest.php

@@ -5,7 +5,7 @@ declare(strict_types=1);
 namespace KTXT\Unit\Preview;
 
 use KTXF\Preview\MimeType;
-use KTXF\Preview\PreviewException;
+use KTXF\Preview\PreviewGenerationException;
 use KTXF\Preview\PreviewRequest;
 use KTXF\Preview\PreviewResult;
 use KTXF\Preview\PreviewSource;
@@ -26,28 +26,17 @@ final class PreviewContractsTest extends TestCase
     }
 
     #[Test]
-    public function normalizesMimeTypesAndMatchesWildcards(): void
+    public function normalizesMimeTypes(): void
     {
         self::assertSame('image/jpeg', MimeType::normalize(' Image/JPEG; charset=binary '));
-        self::assertTrue(MimeType::matches('image/*', 'IMAGE/WEBP'));
-        self::assertTrue(MimeType::matches('application/pdf', 'application/pdf'));
-        self::assertFalse(MimeType::matches('image/*', 'application/pdf'));
     }
 
     #[Test]
-    public function requestHasADeterministicNormalizedRepresentation(): void
+    public function requestNormalizesItsOutputMimeType(): void
     {
-        $request = new PreviewRequest('popover', 640, 440, 'IMAGE/WEBP', 80, page: 1);
+        $request = new PreviewRequest(640, 440, 'IMAGE/WEBP', 80);
 
-        self::assertSame([
-            'variant' => 'popover',
-            'maxWidth' => 640,
-            'maxHeight' => 440,
-            'preferredMimeType' => 'image/webp',
-            'quality' => 80,
-            'page' => 1,
-            'timestamp' => null,
-        ], $request->normalized());
+        self::assertSame('image/webp', $request->preferredMimeType);
     }
 
     #[Test]
@@ -75,7 +64,7 @@ final class PreviewContractsTest extends TestCase
     public function sourceRejectsAnInvalidFactoryResult(): void
     {
         $source = new PreviewSource('document', 'entity', 'revision', 'image/jpeg', 1, fn() => 'invalid');
-        $this->expectException(PreviewException::class);
+        $this->expectException(PreviewGenerationException::class);
         $source->open();
     }