refactor: Divi design adapter, logo lookup moves out of media

Co-Authored-By: Claude Opus 5.5 (1M context) <noreply@anthropic.com>

src/Integrations/Divi/Design/DesignSystemReader.php

@@ -6,24 +6,45 @@ namespace LIT\MCP\Integrations\Divi\Design;
 
 use ET\Builder\Packages\GlobalData\GlobalData;
 use ET\Builder\Packages\GlobalData\GlobalPreset;
+use LIT\MCP\Integrations\Divi\Release\Call;
+use LIT\MCP\Integrations\Divi\Release\DiviAdapter;
+use LIT\MCP\Integrations\Divi\Release\Manifest;
 
 defined('ABSPATH') || exit;
 
 /**
- * Reads the design system from Divi's own APIs once per request (spec §2 principle 2 – no
- * copy is ever stored). Not final so abilities can be unit-tested with a mock.
+ * Adapter "Designsystem" (spec §3): reads the design system from Divi's own APIs
+ * once per request (spec §2 principle 2 – no copy is ever stored), and the logo of
+ * Divi's theme options. Not final so abilities can be unit-tested with a mock.
  */
-class DesignSystemReader
+class DesignSystemReader implements DiviAdapter
 {
+    /** Divi's theme options (one array option); customizer colors, fonts and
+     * the logo live there. */
+    private const OPTIONS = 'et_divi';
+
     private ?DesignSystem $designSystem = null;
 
+    public static function manifest(): Manifest
+    {
+        return new Manifest(
+            Manifest::DESIGN,
+            calls: [
+                new Call(GlobalData::class . '::get_global_colors', 0),
+                new Call(GlobalData::class . '::get_global_variables', 0),
+                new Call(GlobalPreset::class . '::get_data', 0),
+            ],
+            keys: [self::OPTIONS]
+        );
+    }
+
     public function read(): DesignSystem
     {
         if ($this->designSystem === null) {
             $colors = GlobalData::get_global_colors();
             $variables = GlobalData::get_global_variables();
             $presets = GlobalPreset::get_data();
-            $options = get_option('et_divi', []);
+            $options = get_option(self::OPTIONS, []);
             $this->designSystem = DesignSystem::fromDivi(
                 is_array($colors) ? $colors : [],
                 is_array($variables) ? $variables : [],
@@ -34,4 +55,15 @@ class DesignSystemReader
 
         return $this->designSystem;
     }
+
+    /** The logo URL of Divi's theme options (Divi → Theme-Optionen → Logo),
+     * '' when none is set. */
+    public static function diviLogo(): string
+    {
+        $options = get_option(self::OPTIONS);
+
+        return is_array($options) && is_string($options['divi_logo'] ?? null)
+            ? $options['divi_logo']
+            : '';
+    }
 }

src/Integrations/Divi/Release/DiviAdapters.php

@@ -4,6 +4,7 @@ declare(strict_types=1);
 
 namespace LIT\MCP\Integrations\Divi\Release;
 
+use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
 use LIT\MCP\Integrations\Divi\Library\DiviLibraryStore;
 use LIT\MCP\Integrations\Divi\Library\DiviRoles;
 use LIT\MCP\Integrations\Divi\Pages\DiviPages;
@@ -13,7 +14,8 @@ use LIT\MCP\Integrations\Divi\ThemeBuilder\DiviThemeBuilder;
 
 defined('ABSPATH') || exit;
 
-/** The Divi boundary (spec §3): the only classes that touch Divi, in the order reports list them. */
+/** The Divi boundary (spec §3): the only classes that touch Divi, in the order
+ * reports list them. */
 final class DiviAdapters
 {
     /** @var list<class-string<DiviAdapter>> */
@@ -22,6 +24,7 @@ final class DiviAdapters
         DiviLibraryStore::class,
         DiviRoles::class,
         DiviThemeBuilder::class,
+        DesignSystemReader::class,
         DiviModules::class,
         DynamicContentMap::class,
     ];

src/Integrations/Media/MediaUsageFinder.php

@@ -5,6 +5,7 @@ declare(strict_types=1);
 namespace LIT\MCP\Integrations\Media;
 
 use Closure;
+use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
 use LIT\MCP\Integrations\WordPress\PostStatuses;
 use LIT\MCP\Log;
 
@@ -256,10 +257,14 @@ class MediaUsageFinder
             );
         }
 
-        $divi = get_option('et_divi');
-        $diviLogo = is_array($divi) && is_string($divi['divi_logo'] ?? null) ? $divi['divi_logo'] : '';
+        $diviLogo = DesignSystemReader::diviLogo();
         if ($diviLogo !== '' && ContentMediaReferences::matches($fileRegex, $diviLogo) !== false) {
-            $found['site:divi_logo'] = self::siteUsage('Divi-Logo', 'option', 'divi_logo', self::POSSIBLE);
+            $found['site:divi_logo'] = self::siteUsage(
+                'Divi-Logo',
+                'option',
+                'divi_logo',
+                self::POSSIBLE
+            );
         }
 
         $this->addWidgetUsages($found, $attachmentId, $fileRegex);

tests/Unit/Integrations/Divi/Design/DesignSystemReaderTest.php

@@ -0,0 +1,46 @@
+<?php
+
+declare(strict_types=1);
+
+namespace LIT\MCP\Tests\Unit\Integrations\Divi\Design;
+
+use Brain\Monkey\Functions;
+use LIT\MCP\Integrations\Divi\Design\DesignSystemReader;
+use LIT\MCP\Integrations\Divi\Release\Call;
+use LIT\MCP\Integrations\Divi\Release\DiviAdapters;
+use LIT\MCP\Integrations\Divi\Release\Manifest;
+use LIT\MCP\Tests\Unit\TestCase;
+
+final class DesignSystemReaderTest extends TestCase
+{
+    public function testIsTheRegisteredDesignAdapter(): void
+    {
+        $manifest = DesignSystemReader::manifest();
+
+        self::assertContains(DesignSystemReader::class, DiviAdapters::CLASSES);
+        self::assertSame(Manifest::DESIGN, $manifest->area);
+        self::assertSame(
+            ['GlobalData::get_global_colors()', 'GlobalData::get_global_variables()',
+             'GlobalPreset::get_data()'],
+            array_map(static fn (Call $call): string => $call->label(), $manifest->calls)
+        );
+        self::assertSame(['et_divi'], $manifest->keys);
+    }
+
+    public function testDiviLogoReadsTheThemeOptions(): void
+    {
+        Functions\when('get_option')->alias(
+            static fn (string $name): mixed => $name === 'et_divi' ?
+                ['divi_logo' => 'https://k.de/logo.svg'] : false
+        );
+
+        self::assertSame('https://k.de/logo.svg', DesignSystemReader::diviLogo());
+    }
+
+    public function testDiviLogoIsEmptyWithoutOptions(): void
+    {
+        Functions\when('get_option')->justReturn(false);
+
+        self::assertSame('', DesignSystemReader::diviLogo());
+    }
+}

tests/Unit/Integrations/Divi/Release/DiviBoundaryTest.php

@@ -20,13 +20,12 @@ use ReflectionClass;
 final class DiviBoundaryTest extends TestCase
 {
     /**
-     * Files that still touch Divi outside an adapter (paths below src/). Tasks 3–7 shrink this list to
-     * DiviCompatibility.php; Task 8 removes it together with testLegacyFilesStillTouchDivi.
+     * Files that still touch Divi outside an adapter (paths below src/). Tasks 3–7
+     * shrink this list to DiviCompatibility.php; Task 8 removes it together with
+     * testLegacyFilesStillTouchDivi.
      */
     private const LEGACY = [
-        'Integrations/Divi/Design/DesignSystemReader.php',
         'Integrations/Divi/DiviCompatibility.php',
-        'Integrations/Media/MediaUsageFinder.php',
     ];
 
     public function testOnlyAdaptersTouchDivi(): void