Implement advanced search queries

Signed-off-by: Julius Härtl <jus@bitgrid.net>

lib/Search/CardCommentProvider.php

@@ -0,0 +1,84 @@
+<?php
+/**
+ * @copyright Copyright (c) 2020 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/>.
+ *
+ */
+
+declare(strict_types=1);
+
+
+namespace OCA\Deck\Search;
+
+use OCA\Deck\Service\SearchService;
+use OCP\IL10N;
+use OCP\IUser;
+use OCP\Search\IProvider;
+use OCP\Search\ISearchQuery;
+use OCP\Search\SearchResult;
+
+class CardCommentProvider implements IProvider {
+
+	/** @var SearchService */
+	private $searchService;
+	/** @var IL10N */
+	private $l10n;
+
+	public function __construct(
+		SearchService $searchService,
+		IL10N $l10n
+	) {
+		$this->searchService = $searchService;
+		$this->l10n = $l10n;
+	}
+
+	public function getId(): string {
+		return 'deck-comment';
+	}
+
+	public function getName(): string {
+		return $this->l10n->t('Card comments');
+	}
+
+	public function search(IUser $user, ISearchQuery $query): SearchResult {
+		$cursor = $query->getCursor() !== null ? (int)$query->getCursor() : null;
+		$results = $this->searchService->searchComments($query->getTerm(), $query->getLimit(), $cursor);
+		if (count($results) < $query->getLimit()) {
+			return SearchResult::complete(
+				$this->l10n->t('Card comments'),
+				$results,
+			);
+		}
+		
+		return SearchResult::paginated(
+			$this->l10n->t('Card comments'),
+			$results,
+			$results[count($results) - 1]->getCommentId()
+		);
+	}
+
+	public function getOrder(string $route, array $routeParameters): int {
+		// Negative value to force showing deck providers on first position if the app is opened
+		// This provider always has an order 1 higher than the default DeckProvider
+		if ($route === 'deck.Page.index') {
+			return -4;
+		}
+		return 11;
+	}
+}