feat: Implement team resource provider for shared files

lib/AppInfo/Application.php

@@ -46,6 +46,7 @@
 use OCA\Circles\Events\PreparingCircleMemberEvent;
 use OCA\Circles\Events\RemovingCircleMemberEvent;
 use OCA\Circles\Events\RequestingCircleMemberEvent;
+use OCA\Circles\FileSharingTeamResourceProvider;
 use OCA\Circles\Handlers\WebfingerHandler;
 use OCA\Circles\Listeners\AccountUpdated;
 use OCA\Circles\Listeners\Files\AddingMemberSendMail as ListenerFilesAddingMemberSendMail;
@@ -140,6 +141,7 @@ public function register(IRegistrationContext $context): void {
 		$context->registerWellKnownHandler(WebfingerHandler::class);
 
 		$context->registerDashboardWidget(TeamDashboardWidget::class);
+		$context->registerTeamResourceProvider(FileSharingTeamResourceProvider::class);
 	}
 
 

lib/FileSharingTeamResourceProvider.php

@@ -0,0 +1,101 @@
+<?php
+
+declare(strict_types=1);
+
+/**
+ * @copyright Copyright (c) 2024 Julius Härtl <jus@bitgrid.net>
+ *
+ * @author Julius Härtl <jus@bitgrid.net>
+ *
+ * @license GNU AGPL version 3 or any later version
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as
+ * published by the Free Software Foundation, either version 3 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+namespace OCA\Circles;
+
+use OCA\Circles\Model\ShareWrapper;
+use OCA\Circles\Service\ShareWrapperService;
+use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\Teams\ITeamResourceProvider;
+use OCP\Teams\TeamResource;
+
+class FileSharingTeamResourceProvider implements ITeamResourceProvider {
+	public function __construct(
+		private IL10N $l10n,
+		private ?CirclesManager $circlesManager,
+		private ShareWrapperService $shareByCircleProvider,
+		private IURLGenerator $urlGenerator
+	) {
+	}
+
+	public function getId(): string {
+		return 'files';
+	}
+
+	public function getName(): string {
+		return $this->l10n->t('Files');
+	}
+
+	public function getIconSvg(): string {
+		return '<svg xmlns="http://www.w3.org/2000/svg" id="mdi-folder" viewBox="0 0 24 24"><path d="M10,4H4C2.89,4 2,4.89 2,6V18A2,2 0 0,0 4,20H20A2,2 0 0,0 22,18V8C22,6.89 21.1,6 20,6H12L10,4Z" /></svg>';
+	}
+
+	public function getSharedWith(string $teamId): array {
+		if (!$this->circlesManager) {
+			return [];
+		}
+
+		$shares = $this->shareByCircleProvider->getSharesToCircle($teamId);
+		usort($shares, function ($a, $b) {
+			return (int)($b->getItemType() === 'folder') - (int)($a->getItemType() === 'folder');
+		});
+		return array_map(function (ShareWrapper $shareWrapper) {
+			$isFolder = $shareWrapper->getItemType() === 'folder';
+			return new TeamResource(
+				$this,
+				(string)$shareWrapper->getFileSource(),
+				basename($shareWrapper->getFileTarget()),
+				$this->urlGenerator->getAbsoluteURL('/index.php/f/' . $shareWrapper->getFileSource()),
+				iconSvg: $isFolder ? '<svg xmlns="http://www.w3.org/2000/svg" id="mdi-folder" viewBox="0 0 24 24"><path d="M10,4H4C2.89,4 2,4.89 2,6V18A2,2 0 0,0 4,20H20A2,2 0 0,0 22,18V8C22,6.89 21.1,6 20,6H12L10,4Z" /></svg>' : null,
+				iconURL: !$isFolder ?
+					$this->urlGenerator->linkToRouteAbsolute('core.preview.getPreviewByFileId', ['fileId' => $shareWrapper->getFileSource(), 'mimeFallback' => true, ])
+					: null,
+			);
+		}, $shares);
+	}
+
+	public function isSharedWithTeam(string $teamId, string $resourceId): bool {
+		if (!$this->circlesManager) {
+			return false;
+		}
+
+		return count(array_filter($this->getSharedWith($teamId), function (TeamResource $resource) use ($resourceId) {
+			return $resource->getId() === $resourceId;
+		})) !== 0;
+	}
+
+	public function getTeamsForResource(string $resourceId): array {
+		if (!$this->circlesManager) {
+			return [];
+		}
+
+		$shares = $this->shareByCircleProvider->getSharesByFileId((int)$resourceId);
+
+		return array_map(function ($share) {
+			return $share->getSharedWith();
+		}, $shares);
+	}
+}