[stable25] implement dashboard api for recommended files

.gitignore

@@ -2,4 +2,4 @@
 /build
 /node_modules
 /vendor/
-
+.idea/

lib/Dashboard/RecommendationWidget.php

@@ -1,4 +1,7 @@
 <?php
+
+declare(strict_types=1);
+
 /**
  * @copyright Copyright (c) 2020 Julius Härtl <[email protected]>
  *
@@ -24,21 +27,41 @@
 namespace OCA\Recommendations\Dashboard;
 
 use OCA\Recommendations\AppInfo\Application;
+use OCA\Recommendations\Service\IRecommendation;
+use OCA\Recommendations\Service\RecommendationService;
+use OCP\Dashboard\IAPIWidget;
+use OCP\Dashboard\IIconWidget;
 use OCP\Dashboard\IWidget;
+use OCP\Dashboard\Model\WidgetItem;
+use OCP\Files\IMimeTypeDetector;
 use OCP\IL10N;
+use OCP\IURLGenerator;
+use OCP\IUserManager;
 use OCP\IUserSession;
 use OCP\Util;
 
-class RecommendationWidget implements IWidget {
+class RecommendationWidget implements IWidget, IIconWidget, IAPIWidget {
 	private IUserSession $userSession;
 	private IL10N $l10n;
+	private IURLGenerator $urlGenerator;
+	private IMimeTypeDetector $mimeTypeDetector;
+	private RecommendationService $recommendationService;
+	private IUserManager $userManager;
 
 	public function __construct(
 		IUserSession $userSession,
-		IL10N $l10n
+		IL10N $l10n,
+		IURLGenerator $urlGenerator,
+		IMimeTypeDetector $mimeTypeDetector,
+		RecommendationService $recommendationService,
+		IUserManager $userManager
 	) {
 		$this->userSession = $userSession;
 		$this->l10n = $l10n;
+		$this->urlGenerator = $urlGenerator;
+		$this->mimeTypeDetector = $mimeTypeDetector;
+		$this->recommendationService = $recommendationService;
+		$this->userManager = $userManager;
 	}
 
 	public function getId(): string {
@@ -57,6 +80,10 @@ public function getIconClass(): string {
 		return 'icon-files-dark';
 	}
 
+	public function getIconUrl(): string {
+		return $this->urlGenerator->getAbsoluteURL($this->urlGenerator->imagePath('files', 'app.svg'));
+	}
+
 	public function getUrl(): ?string {
 		return null;
 	}
@@ -68,4 +95,39 @@ public function load(): void {
 		}
 		Util::addScript(Application::APP_ID, 'files_recommendation-dashboard');
 	}
+
+	public function getItems(string $userId, ?string $since = null, int $limit = 7): array {
+		$user = $this->userManager->get($userId);
+		if (!$user) {
+			return [];
+		}
+		$recommendations = $this->recommendationService->getRecommendations($user, $limit);
+
+		return array_map(function (IRecommendation $recommendation) {
+			$url = $this->urlGenerator->linkToRouteAbsolute(
+				'files.viewcontroller.showFile', ['fileid' => $recommendation->getNode()->getId()]
+			);
+
+			if ($recommendation->hasPreview()) {
+				$icon = $this->urlGenerator->linkToRouteAbsolute('core.Preview.getPreviewByFileId', [
+					'x' => 256,
+					'y' => 256,
+					'fileId' => $recommendation->getNode()->getId(),
+					'c' => $recommendation->getNode()->getEtag(),
+				]);
+			} else {
+				$icon = $this->urlGenerator->getAbsoluteURL(
+					$this->mimeTypeDetector->mimeTypeIcon($recommendation->getNode()->getMimetype())
+				);
+			}
+
+			return new WidgetItem(
+				$recommendation->getNode()->getName(),
+				'',
+				$url,
+				$icon,
+				(string)$recommendation->getTimestamp()
+			);
+		}, $recommendations);
+	}
 }