<?php
/**
 * @author Tom Needham <tom@owncloud.com>
 *
 * @copyright Copyright (c) 2019, ownCloud GmbH
 * @license AGPL-3.0
 *
 * This code is free software: you can redistribute it and/or modify
 * it under the terms of the GNU Affero General Public License, version 3,
 * as published by the Free Software Foundation.
 *
 * 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, version 3,
 * along with this program.  If not, see <http://www.gnu.org/licenses/>
 *
 */
namespace OCA\Encryption\Panels;

use OCP\Encryption\Keys\IStorage;
use OCP\IConfig;
use OCP\IL10N;
use OCP\ILogger;
use OCP\ISession;
use OCP\IUserManager;
use OCP\IUserSession;
use OCP\Settings\ISettings;
use OCP\Template;

class Personal implements ISettings {
	/** @var ILogger */
	protected $logger;
	/** @var IUserSession */
	protected $userSession;
	/** @var IConfig */
	protected $config;
	/** @var IL10N */
	protected $l;
	/** @varIUserManager */
	protected $userManager;
	/** @var ISession  */
	protected $session;
	/** @var IStorage */
	protected $encKeyStorage;

	public function __construct(
		ILogger $logger,
		IUserSession $userSession,
		IConfig $config,
		IL10N $l,
		IUserManager $userManager,
		ISession $session,
		IStorage $encKeyStorage
	) {
		$this->logger = $logger;
		$this->userSession = $userSession;
		$this->config = $config;
		$this->l = $l;
		$this->userManager = $userManager;
		$this->session = $session;
		$this->encKeyStorage = $encKeyStorage;
	}

	public function getPriority() {
		return 0;
	}

	public function getSectionID() {
		return 'encryption';
	}

	/**
	 * @return \OCP\AppFramework\Http\TemplateResponse|Template|null
	 */
	public function getPanel() {
		$session = new \OCA\Encryption\Session($this->session);
		$template = new Template('encryption', 'settings-personal');
		$crypt = new \OCA\Encryption\Crypto\Crypt(
			$this->logger,
			$this->userSession,
			$this->config,
			$this->l
		);

		$util = new \OCA\Encryption\Util(
			new \OC\Files\View(),
			$crypt,
			$this->logger,
			$this->userSession,
			$this->config,
			$this->userManager
		);

		$user = $this->userSession->getUser()->getUID();
		$privateKeySet = $session->isPrivateKeySet();

		// did we tried to initialize the keys for this session?
		$initialized = $session->getStatus();
		$recoveryAdminEnabled = $this->config->getAppValue('encryption', 'recoveryAdminEnabled');
		$recoveryEnabledForUser = $util->isRecoveryEnabledForUser($user);
		if ($recoveryAdminEnabled || !$privateKeySet) {
			$template->assign('recoveryEnabled', $recoveryAdminEnabled);
			$template->assign('recoveryEnabledForUser', $recoveryEnabledForUser);
			$template->assign('privateKeySet', $privateKeySet);
			$template->assign('initialized', $initialized);
			return $template;
		}
		return null;
	}
}
