nextcloud-app-radio/lib/Controller/SettingsController.php

<?php
namespace OCA\Radio\Controller;

use Exception;
use OCP\AppFramework\ApiController;
use OCP\AppFramework\Http;
use OCP\AppFramework\Http\JSONResponse;
use OCP\IConfig;
use OCP\IL10N;
use OCP\IRequest;
use OCP\Util;

class SettingsController extends ApiController {

	/** @var IConfig */
	private $config;

	/** @var string */
	private $userId;
	/**
	 * @var IL10N
	 */
	private $l;

	/**
	 * @param string $appName
	 * @param IRequest $request
	 * @param string $userId
	 * @param IConfig $config
	 * @param IL10N $l
	 */
	public function __construct(
		$appName, $request, $userId, IConfig $config, IL10N $l
	) {
		parent::__construct($appName, $request);
		$this->config = $config;
		$this->userId = $userId;
		$this->l = $l;
	}

	private function getSetting(string $key, string $name, $default): JSONResponse {
		try {
			$userValue = $this->config->getUserValue(
				$this->userId,
				$this->appName,
				$key,
				$default
			);
		} catch (Exception $e) {
			Util::writeLog('radio', $e->getMessage(), Util::ERROR);
			return new JSONResponse([], Http::STATUS_INTERNAL_SERVER_ERROR);
		}

		return new JSONResponse([$name => $userValue], Http::STATUS_OK);
	}

	private function setSetting($key, $value): JSONResponse {
		try {
			$this->config->setUserValue(
				$this->userId,
				$this->appName,
				$key,
				$value
			);
		} catch (Exception $e) {
			return new JSONResponse(['status' => 'error'], Http::STATUS_INTERNAL_SERVER_ERROR);
		}

		return new JSONResponse(['status' => 'success'], Http::STATUS_OK);
	}

	/**
	 * set menu state
	 *
	 * @param string $menuState
	 * @return JSONResponse
	 *
	 * @NoAdminRequired
	 */
	public function setMenuState($menuState = ""): JSONResponse {
		if ($menuState == 'SEARCH') {
			return new JSONResponse(['status' => 'success'], Http::STATUS_OK);
		};
		$legalArguments = ['TOP', 'RECENT', 'NEW', 'FAVORITES', 'CATEGORIES'];
		if (!in_array($menuState, $legalArguments)) {
			return new JSONResponse(['status' => 'error'], Http::STATUS_BAD_REQUEST);
		}
		return $this->setSetting(
				'menuState',
				$menuState
			);
	}

	/**
	 * get menu state
	 *
	 * @return JSONResponse
	 *
	 * @NoAdminRequired
	 */
	public function getMenuState(): JSONResponse {
		return $this->getSetting('menuState', 'menuState', 'TOP');
	}

	/**
	 * set player volume
	 *
	 * @param string $playerVolume
	 * @return JSONResponse
	 *
	 * @NoAdminRequired
	 */
	public function setVolumeState($volumeState = "0.5"): JSONResponse {
		return $this->setSetting(
				'volumeState',
				$volumeState
			);
	}

	/**
	 * get player volume
	 *
	 * @return JSONResponse
	 *
	 * @NoAdminRequired
	 */
	public function getVolumeState(): JSONResponse {
		return $this->getSetting('volumeState', 'volumeState', 0.5);
	}

}