fix(capabilities): Fix capability issues with OpenAI integration providing too many translations

Signed-off-by: Joas Schilling <coding@schilljs.com>

docs/capabilities.md

@@ -115,7 +115,7 @@
 
 ## 17
 * `avatar` - Avatar of conversation
-* `config => chat => translations` - List of translations tuples, JSON encoded sample `{"from":"de","fromLabel":"German","to":"en","toLabel":"English"}`. Those tuples should be provided as options when translating chat messages.
+* ~~`config => chat => translations` - List of translations tuples, JSON encoded sample `{"from":"de","fromLabel":"German","to":"en","toLabel":"English"}`. Those tuples should be provided as options when translating chat messages.~~ Due to some providers the list was too big causing issues in various clients. So the capability was replaced by boolean `config => chat => has-translation-providers` in Talk 18.
 * `config => call => predefined-backgrounds` - List of predefined virtual backgrounds. The files are in Talks img/ folder, accessible via the normal image path methods. The list is cached for 5 minutes.
 * `config => call => can-upload-background` - Boolean flag whether the user can upload a custom virtual background (requires an account and non-zero quota). Uploads should be done to Talk/Backgrounds/ (respecting the user's attachment directory setting).
 * `config => call => supported-reactions` - A list of emojis supported as call reactions. If the list is absent or empty, clients should not show the emoji reaction option in calls.
@@ -129,3 +129,4 @@
 
 ## 18
 * `session-state` - Sessions can mark themselves as inactive, so the participant receives notifications again
+* `config => chat => has-translation-providers` - When true, translation tuples can be loaded from the [OCS Translation API](https://docs.nextcloud.com/server/latest/developer_manual/client_apis/OCS/ocs-translation-api.html#get-available-translation-options).

lib/Capabilities.php

@@ -137,8 +137,7 @@ class Capabilities implements IPublicCapability {
 				'chat' => [
 					'max-length' => ChatManager::MAX_CHAT_LENGTH,
 					'read-privacy' => Participant::PRIVACY_PUBLIC,
-					// Transform the JsonSerializable language tuples to arrays
-					'translations' => json_decode(json_encode($this->translationManager->getLanguages()), true),
+					'has-translation-providers' => $this->translationManager->hasProviders(),
 					'typing-privacy' => Participant::PRIVACY_PUBLIC,
 				],
 				'conversations' => [

tests/php/CapabilitiesTest.php

@@ -38,7 +38,6 @@ use OCP\IConfig;
 use OCP\IUser;
 use OCP\IUserSession;
 use OCP\Translation\ITranslationManager;
-use OCP\Translation\LanguageTuple;
 use PHPUnit\Framework\MockObject\MockObject;
 use Test\TestCase;
 
@@ -206,7 +205,7 @@ class CapabilitiesTest extends TestCase {
 					'chat' => [
 						'max-length' => 32000,
 						'read-privacy' => 0,
-						'translations' => [],
+						'has-translation-providers' => false,
 						'typing-privacy' => 0,
 					],
 					'conversations' => [
@@ -330,7 +329,7 @@ class CapabilitiesTest extends TestCase {
 					'chat' => [
 						'max-length' => 32000,
 						'read-privacy' => $readPrivacy,
-						'translations' => [],
+						'has-translation-providers' => false,
 						'typing-privacy' => 0,
 					],
 					'conversations' => [
@@ -447,17 +446,10 @@ class CapabilitiesTest extends TestCase {
 			$this->cacheFactory,
 		);
 
-		$translations = [];
-		$translations[] = new LanguageTuple('de', 'de Label', 'en', 'en Label');
-		$translations[] = new LanguageTuple('de_DE', 'de_DE Label', 'en', 'en Label');
-
-		$this->translationManager->method('getLanguages')
-			->willReturn($translations);
+		$this->translationManager->method('hasProviders')
+			->willReturn(true);
 
 		$data = json_decode(json_encode($capabilities->getCapabilities(), JSON_THROW_ON_ERROR), true);
-		$this->assertEquals([
-			['from' => 'de', 'fromLabel' => 'de Label', 'to' => 'en', 'toLabel' => 'en Label'],
-			['from' => 'de_DE', 'fromLabel' => 'de_DE Label', 'to' => 'en', 'toLabel' => 'en Label'],
-		], $data['spreed']['config']['chat']['translations']);
+		$this->assertEquals(true, $data['spreed']['config']['chat']['has-translation-providers']);
 	}
 }