<?php

declare(strict_types=1);

/**
 * Radio App.
 *
 * @author Jonas Heinrich
 * @copyright 2021 Jonas Heinrich <onny@project-insanity.org>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU AFFERO GENERAL PUBLIC LICENSE
 * License as published by the Free Software Foundation; either
 * version 3 of the License, or any later version.
 *
 * This library 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 library.  If not, see <http://www.gnu.org/licenses/>.
 */

namespace OCA\Radio\Service;

use OCA\Radio\Db\FavoriteMapper;
use OCA\Radio\Db\Station;
use OCP\AppFramework\Db\DoesNotExistException;
use OCP\AppFramework\Db\MultipleObjectsReturnedException;

class FavoriteService
{
	public function __construct(
		private readonly FavoriteMapper $mapper
	) {
		$this->mapper = $mapper;
	}

	/**
	 * @return Station[]
	 */
	public function findAll(string $userId): array {
		return $this->mapper->findAll($userId);
	}

	public function find(int $id, string $userId): ?Station {
		try {
			return $this->mapper->find($id, $userId);
			// in order to be able to plug in different storage backends like files
			// for instance it is a good idea to turn storage related exceptions
			// into service related exceptions so controllers and service users
			// have to deal with only one type of exception
		} catch (\Exception $exception) {
			return $this->handleException($exception);
		}
	}

	public function create(
		string $stationuuid,
		string $name,
		?string $favicon,
		?string $urlresolved,
		?string $bitrate,
		?string $country,
		?string $language,
		?string $homepage,
		?string $codec,
		?string $tags,
		string $userId
	): Station {
		$station = new Station();
		$station->setStationuuid($stationuuid);
		$station->setName($name);
		$station->setFavicon($favicon);
		$station->setUrlresolved($urlresolved);
		$station->setBitrate($bitrate);
		$station->setCountry($country);
		$station->setLanguage($language);
		$station->setHomepage($homepage);
		$station->setCodec($codec);
		$station->setTags($tags);
		$station->setUserId($userId);

		return $this->mapper->insert($station);
	}

	public function update(
		int $id,
		string $stationuuid,
		string $name,
		?string $favicon,
		?string $urlresolved,
		?string $bitrate,
		?string $country,
		?string $language,
		?string $homepage,
		?string $codec,
		?string $tags,
		string $userId
	): ?Station {
		try {
			$station = $this->mapper->find($id, $userId);
			$station->setStationuuid($stationuuid);
			$station->setName($name);
			$station->setFavicon($favicon);
			$station->setUrlresolved($urlresolved);
			$station->setBitrate($bitrate);
			$station->setCountry($country);
			$station->setLanguage($language);
			$station->setHomepage($homepage);
			$station->setCodec($codec);
			$station->setTags($tags);

			return $this->mapper->update($station);
		} catch (\Exception $exception) {
			return $this->handleException($exception);
		}
	}

	public function delete(int $id, string $userId): ?Station {
		try {
			$station = $this->mapper->find($id, $userId);
			$this->mapper->delete($station);

			return $station;
		} catch (\Exception $exception) {
			return $this->handleException($exception);
		}
	}

	private function handleException(\Throwable $e): void {
		if ($e instanceof DoesNotExistException
			|| $e instanceof MultipleObjectsReturnedException) {
			throw new StationNotFound($e->getMessage());
		}

		throw $e;
	}
}