Implement user data export via occ command

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

appinfo/info.xml

@@ -37,4 +37,7 @@
             <step>OCA\Deck\Migration\UnknownUsers</step>
         </post-migration>
     </repair-steps>
+    <commands>
+        <command>OCA\Deck\Command\UserExport</command>
+    </commands>
 </info>

lib/Command/UserExport.php

@@ -0,0 +1,119 @@
+<?php
+/**
+ * @copyright Copyright (c) 2018 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/>.
+ *
+ */
+
+namespace OCA\Deck\Command;
+
+use OCA\Deck\Db\AssignedUsersMapper;
+use OCA\Deck\Db\BoardMapper;
+use OCA\Deck\Db\CardMapper;
+use OCA\Deck\Db\StackMapper;
+use OCA\Deck\Service\BoardService;
+use OCP\AppFramework\Db\DoesNotExistException;
+use OCP\AppFramework\Db\MultipleObjectsReturnedException;
+use OCP\IGroupManager;
+use OCP\IUserManager;
+use Symfony\Component\Console\Command\Command;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class UserExport extends Command {
+
+	protected $boardService;
+	protected $cardMapper;
+	private $userManager;
+	private $groupManager;
+	private $assignedUsersMapper;
+
+	public function __construct(BoardMapper $boardMapper,
+								BoardService $boardService,
+								StackMapper $stackMapper,
+								CardMapper $cardMapper,
+								AssignedUsersMapper $assignedUsersMapper,
+								IUserManager $userManager,
+								IGroupManager $groupManager) {
+		parent::__construct();
+
+		$this->cardMapper = $cardMapper;
+		$this->boardService = $boardService;
+		$this->stackMapper = $stackMapper;
+		$this->assignedUsersMapper = $assignedUsersMapper;
+		$this->boardMapper = $boardMapper;
+
+		$this->userManager = $userManager;
+		$this->groupManager = $groupManager;
+	}
+
+	protected function configure() {
+		$this
+			->setName('deck:export')
+			->setDescription('Export a JSON dump of user data')
+			->addArgument(
+				'user-id',
+				InputArgument::REQUIRED,
+				'User ID of the user'
+			)
+		;
+	}
+
+	/**
+	 * @param InputInterface $input
+	 * @param OutputInterface $output
+	 * @return void
+	 * @throws DoesNotExistException
+	 * @throws MultipleObjectsReturnedException
+	 * @throws \ReflectionException
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output) {
+
+		$userId = $input->getArgument('user-id');
+
+		$groups = $this->groupManager->getUserGroupIds(
+			$this->userManager->get($userId)
+		);
+		$boards = $this->boardService->findAll([
+			'user' => $userId,
+			'groups' => $groups
+		]);
+
+		$data = [];
+		foreach ($boards as $board) {
+			$fullBoard = $this->boardMapper->find($board->getId(), true, true);
+			$data[$board->getId()] = (array)$fullBoard->jsonSerialize();
+			$stacks = $this->stackMapper->findAll($board->getId());
+			foreach ($stacks as $stack) {
+				$data[$board->getId()]['stacks'][] = (array)$stack->jsonSerialize();
+				$cards = $this->cardMapper->findAllByStack($stack->getId());
+				foreach ($cards as $card) {
+					$fullCard = $this->cardMapper->find($card->getId());
+					$assignedUsers = $this->assignedUsersMapper->find($card->getId());
+					$fullCard->setAssignedUsers($assignedUsers);
+					$data[$board->getId()]['stacks'][$stack->getId()]['cards'] = (array)$fullCard->jsonSerialize();
+				}
+			}
+		}
+		$output->writeln(json_encode($data, JSON_PRETTY_PRINT));
+	}
+}
+
+