Refactor and improvements on command

Check available helpers
Default permission: view only
Moved validate setting from helper to command
Turn more easy create a importer
Docblock and improvements on interface
lcfirst on system property
Helper moved to ImporHelper folder
Moved fixtures to ImportHelper
Rename settings to config
Big refactor to move import methods to service

Signed-off-by: Vitor Mattos <vitor@php.rio>

lib/Command/ImportHelper/ImportInterface.php

@@ -0,0 +1,79 @@
+<?php
+/**
+ * @copyright Copyright (c) 2021 Vitor Mattos <vitor@php.rio>
+ *
+ * @author Vitor Mattos <vitor@php.rio>
+ *
+ * @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\Deck\Command\ImportHelper;
+
+use OCA\Deck\Command\BoardImport;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+interface ImportInterface {
+	/**
+	 * Validate data before run execute method
+	 *
+	 * @param InputInterface $input
+	 * @param OutputInterface $output
+	 * @return void
+	 */
+	public function validate(InputInterface $input, OutputInterface $output): void;
+
+	/**
+	 * Run import
+	 *
+	 * @param InputInterface $input
+	 * @param OutputInterface $output
+	 * @return void
+	 */
+	public function import(InputInterface $input, OutputInterface $output): void;
+
+	/**
+	 * Define Command instance
+	 *
+	 * @param Command $command
+	 * @return void
+	 */
+	public function setCommand(Command $command): void;
+
+	/**
+	 * @return BoardImport
+	 */
+	public function getCommand();
+
+	/**
+	 * Define a config
+	 *
+	 * @param string $configName
+	 * @param mixed $value
+	 * @return void
+	 */
+	public function setConfig(string $configName, $value): void;
+
+	/**
+	 * Get a config
+	 *
+	 * @param string $configName config name
+	 * @return mixed
+	 */
+	public function getConfig($configName);
+}