NC app base

lib/Service/NoteService.php

@@ -0,0 +1,83 @@
+<?php
+declare(strict_types=1);
+// SPDX-FileCopyrightText: Szabó Dávid <daevidt@gmail.com>
+// SPDX-License-Identifier: AGPL-3.0-or-later
+
+namespace OCA\Nezd\Service;
+
+use Exception;
+
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+
+use OCA\Nezd\Db\Note;
+use OCA\Nezd\Db\NoteMapper;
+
+class NoteService {
+	private NoteMapper $mapper;
+
+	public function __construct(NoteMapper $mapper) {
+		$this->mapper = $mapper;
+	}
+
+	/**
+	 * @return list<Note>
+	 */
+	public function findAll(string $userId): array {
+		return $this->mapper->findAll($userId);
+	}
+
+	/**
+	 * @return never
+	 */
+	private function handleException(Exception $e) {
+		if ($e instanceof DoesNotExistException ||
+			$e instanceof MultipleObjectsReturnedException) {
+			throw new NoteNotFound($e->getMessage());
+		} else {
+			throw $e;
+		}
+	}
+
+	public function find(int $id, string $userId): Note {
+		try {
+			return $this->mapper->find($id, $userId);
+
+			// in order to be able to plug in different storage backends like files
+		// for instance it is a good idea to turn storage related exceptions
+		// into service related exceptions so controllers and service users
+		// have to deal with only one type of exception
+		} catch (Exception $e) {
+			$this->handleException($e);
+		}
+	}
+
+	public function create(string $title, string $content, string $userId): Note {
+		$note = new Note();
+		$note->setTitle($title);
+		$note->setContent($content);
+		$note->setUserId($userId);
+		return $this->mapper->insert($note);
+	}
+
+	public function update(int $id, string $title, string $content, string $userId): Note {
+		try {
+			$note = $this->mapper->find($id, $userId);
+			$note->setTitle($title);
+			$note->setContent($content);
+			return $this->mapper->update($note);
+		} catch (Exception $e) {
+			$this->handleException($e);
+		}
+	}
+
+	public function delete(int $id, string $userId): Note {
+		try {
+			$note = $this->mapper->find($id, $userId);
+			$this->mapper->delete($note);
+			return $note;
+		} catch (Exception $e) {
+			$this->handleException($e);
+		}
+	}
+}