<?php
/**
 * @copyright Copyright (c) 2020 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/>.
 *
 */

declare(strict_types=1);


namespace OCA\Dashboard\Service;


use OCP\Files\File;
use OCP\Files\IAppData;
use OCP\Files\IRootFolder;
use OCP\Files\NotFoundException;
use OCP\Files\SimpleFS\ISimpleFile;
use OCP\IConfig;

class BackgroundService {

	const SHIPPED_BACKGROUNDS = [
		'anatoly-mikhaltsov-butterfly-wing-scale.jpg',
		'bernie-cetonia-aurata-take-off-composition.jpg',
		'dejan-krsmanovic-ribbed-red-metal.jpg',
		'eduardo-neves-pedra-azul.jpg',
		'european-space-agency-barents-bloom.jpg',
		'european-space-agency-namib-desert.jpg',
		'hannes-fritz-flippity-floppity.jpg',
		'hannes-fritz-roulette.jpg',
		'hannes-fritz-sea-spray.jpg',
		'kamil-porembinski-clouds.jpg',
	];

	public function __construct(IRootFolder $rootFolder, IAppData $appData, IConfig $config, $userId) {
		if ($userId === null) {
			return;
		}
		$this->userFolder = $rootFolder->getUserFolder($userId);
		try {
			$this->dashboardUserFolder = $appData->getFolder($userId);
		} catch (NotFoundException $e) {
			$this->dashboardUserFolder = $appData->newFolder($userId);
		}
		$this->config = $config;
		$this->userId = $userId;
	}

	public function setDefaultBackground() {
		$this->config->deleteUserValue($this->userId, 'dashboard', 'background');
	}

	public function setFileBackground($path) {
		$this->config->setUserValue($this->userId, 'dashboard', 'background', 'custom');
		$file = $this->userFolder->get($path);
		$newFile = $this->dashboardUserFolder->newFile('background.jpg', $file->fopen('r'));
	}

	public function setShippedBackground($fileName) {
		$this->config->setUserValue($this->userId, 'dashboard', 'background', $fileName);
	}

	public function setUrlBackground($url) {
		$this->config->setUserValue($this->userId, 'dashboard', 'background', 'custom');
		if (substr($url, 0, 1) === '/') {
			$url = \OC::$server->getURLGenerator()->getAbsoluteURL($url);
		}

		$client = \OC::$server->getHTTPClientService()->newClient();
		$response = $client->get($url);
		$content = $response->getBody();
		$newFile = $this->dashboardUserFolder->newFile('background.jpg', $content);
	}

	public function getBackground() {
		$background = $this->config->getUserValue($this->userId, 'dashboard', 'background', 'default');
		if ($background === 'custom') {
			try {
				return $this->dashboardUserFolder->getFile('background.jpg');
			} catch (NotFoundException $e) {
			}
		}
		return null;
	}

}