Initial settings that allow to choose the default color of the notes.

lib/Service/SettingsService.php

@@ -0,0 +1,65 @@
+<?php
+declare(strict_types=1);
+/**
+ * @copyright Copyright (c) 2020 Matias De lellis <mati86dl@gmail.com>
+ *
+ * @author Matias De lellis <mati86dl@gmail.com>
+ *
+ * @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\QuickNotes\Service;
+
+use OCA\QuickNotes\AppInfo\Application;
+
+use OCP\IConfig;
+
+class SettingsService {
+
+	/**
+	 * Settings keys and default values.
+	 */
+	const COLOR_FOR_NEW_NOTES_KEY = 'default_color';
+	const DEFAULT_COLOR_FOR_NEW_NOTES = '#F7EB96';
+
+	/** @var IConfig Config */
+	private $config;
+
+	/**  @var string|null */
+	private $userId;
+
+	/**
+	 * @param IConfig $config
+	 * @param string $userId
+	 */
+	public function __construct(IConfig $config,
+	                            $userId)
+	{
+		$this->config = $config;
+		$this->userId = $userId;
+	}
+
+
+	public function getColorForNewNotes(): string {
+		return $this->config->getUserValue($this->userId, Application::APP_NAME, self::COLOR_FOR_NEW_NOTES_KEY, self::DEFAULT_COLOR_FOR_NEW_NOTES);
+	}
+
+	public function setColorForNewNotes(string $color) {
+		$this->config->setUserValue($this->userId, Application::APP_NAME, self::COLOR_FOR_NEW_NOTES_KEY, $color);
+	}
+
+}