feat: add preferred apps/providers and use them first

Signed-off-by: Elizabeth Danzberger <lizzy7128@tutanota.de>

Author: elzody

lib/private/Files/Conversion/ConversionManager.php

@@ -26,8 +26,16 @@
 use Throwable;
 
 class ConversionManager implements IConversionManager {
-	/** @var ?IConversionProvider[] */
-	private ?array $providers = null;
+	/** @var string[] */
+	private array $preferredApps = [
+		'richdocuments',
+	];
+
+	/** @var IConversionProvider[] */
+	private array $preferredProviders = [];
+
+	/** @var IConversionProvider[] */
+	private array $providers = [];
 
 	public function __construct(
 		private Coordinator $coordinator,
@@ -51,7 +59,7 @@ public function getMimeTypes(): array {
 			array_push($mimeTypes, $provider->getSupportedMimeType());
 		}
 
-		return array_merge([], $mimeTypes);
+		return $mimeTypes;
 	}
 
 	public function convert(File $file, string $targetMimeType, ?string $destination = null): string {
@@ -96,17 +104,21 @@ public function convert(File $file, string $targetMimeType, ?string $destination
 	}
 
 	public function getProviders(): array {
-		if ($this->providers !== null) {
+		if (count($this->providers) > 0) {
 			return $this->providers;
 		}
 
 		$context = $this->coordinator->getRegistrationContext();
-		$this->providers = [];
-
 		foreach ($context->getFileConversionProviders() as $providerRegistration) {
 			$class = $providerRegistration->getService();
+			$appId = $providerRegistration->getAppId();
 
 			try {
+				if (in_array($appId, $this->preferredApps)) {
+					$this->preferredProviders[$class] = $this->serverContainer->get($class);
+					continue;
+				}
+				
 				$this->providers[$class] = $this->serverContainer->get($class);
 			} catch (NotFoundExceptionInterface|ContainerExceptionInterface|Throwable $e) {
 				$this->logger->error('Failed to load file conversion provider ' . $class, [
@@ -115,7 +127,7 @@ public function getProviders(): array {
 			}
 		}
 
-		return $this->providers;
+		return array_merge([], $this->preferredProviders, $this->providers);
 	}
 
 	private function writeToDestination(string $destination, mixed $content): File {