Expose group folder activity scopes

lib/TeamSpace/TeamSpaceProvider.php

@@ -11,12 +11,14 @@
 
 use OCP\IL10N;
 use OCP\IURLGenerator;
+use OCP\Teams\ITeamActivityResourceProvider;
 use OCP\Teams\ITeamFolderProvider;
 use OCP\Teams\Team;
+use OCP\Teams\TeamActivityScope;
 use OCP\Teams\TeamFolder;
 use OCP\Teams\TeamResource;
 
-class TeamSpaceProvider implements ITeamFolderProvider {
+class TeamSpaceProvider implements ITeamFolderProvider, ITeamActivityResourceProvider {
 	public function __construct(
 		private readonly TeamSpaceService $service,
 		private readonly IL10N $l10n,
@@ -120,6 +122,23 @@
 		}, $this->service->getGroupFoldersForCircle($teamId));
 	}
 
+	/**
+	 * @param list<TeamResource> $resources
+	 * @return list<TeamActivityScope>
+	 */
+	#[\Override]
+	public function getActivityScopes(array $resources, string $userId): array {
+		$folderIds = [];
+		foreach ($resources as $resource) {
+			if (ctype_digit($resource->getId())) {
+				$folderIds[] = (int)$resource->getId();
+			}
+		}
+
+		$rootFileIds = $this->service->getRootFileIds(array_values(array_unique($folderIds)));
+		return $rootFileIds === [] ? [] : [new TeamActivityScope('files', $rootFileIds)];
+	}
+
 	#[\Override]
 	public function isSharedWithTeam(string $teamId, string $resourceId): bool {
 		foreach ($this->service->getGroupFoldersForCircle($teamId) as $folder) {

lib/TeamSpace/TeamSpaceService.php

@@ -233,7 +233,7 @@
 
 		$this->createAppDirectory($folderId);
 
-		return new TeamFolder($folder->id, $folder->mountPoint, $folder->quota);
+		return new TeamFolder($folder->id, $folder->mountPoint, $folder->quota, $folder->rootId);
 	}
 
 	/**
@@ -275,6 +275,22 @@
 		);
 	}
 
+	/**
+	 * @param list<int> $folderIds
+	 * @return list<int>
+	 */
+	public function getRootFileIds(array $folderIds): array {
+		$rootFileIds = [];
+		foreach ($folderIds as $folderId) {
+			$folder = $this->folderManager->getFolder($folderId);
+			if ($folder !== null && $folder->rootId > 0) {
+				$rootFileIds[] = $folder->rootId;
+			}
+		}
+
+		return array_values(array_unique($rootFileIds));
+	}
+
 	/**
 	 * Return existing folders directly available to a team that have not been
 	 * made an exclusive team folder for another team.

tests/TeamSpace/TeamSpaceProviderTest.php

@@ -13,7 +13,9 @@
 use OCA\GroupFolders\TeamSpace\TeamSpaceService;
 use OCP\IL10N;
 use OCP\IURLGenerator;
+use OCP\Teams\TeamActivityScope;
 use OCP\Teams\TeamFolder;
+use OCP\Teams\TeamResource;
 use PHPUnit\Framework\MockObject\MockObject;
 use Test\TestCase;
 
@@ -65,6 +67,24 @@
 		$this->assertSame('https://cloud.example/apps/files/?dir=/Shared%20projects', $resources[1]->getUrl());
 	}
 
+	public function testGetActivityScopesReturnsGroupFolderRoots(): void {
+		$resources = [
+			new TeamResource($this->provider, '42', 'Engineering', 'https://cloud.example/engineering'),
+			new TeamResource($this->provider, '43', 'Shared projects', 'https://cloud.example/projects'),
+		];
+		$this->service->expects($this->once())
+			->method('getRootFileIds')
+			->with([42, 43])
+			->willReturn([420, 430]);
+
+		$scopes = $this->provider->getActivityScopes($resources, 'alice');
+
+		$this->assertCount(1, $scopes);
+		$this->assertInstanceOf(TeamActivityScope::class, $scopes[0]);
+		$this->assertSame('files', $scopes[0]->getObjectType());
+		$this->assertSame([420, 430], $scopes[0]->getObjectIds());
+	}
+
 	public function testGetLinkableTeamFoldersDelegatesToService(): void {
 		$folders = [new TeamFolder(42, 'Engineering')];
 		$this->service->expects($this->once())