OCA\Music\Controller\AmpacheController::dispatch()

Complexity

Conditions	6
Paths	5

Size

Total Lines	37
Code Lines	20

Duplication

Lines	0
Ratio	0 %

Importance

Changes	1
Bugs	0	Features	0

<?php declare(strict_types=1);
	protected function dispatch(string $action) : Response {
		$this->logger->log("Ampache action '$action' requested", 'debug');

		// Allow calling any functions annotated to be part of the API
		if (\method_exists($this, $action)) {
			$annotationReader = new MethodAnnotationReader($this, $action);
			if ($annotationReader->hasAnnotation('AmpacheAPI')) {
				// custom "filter" which modifies the value of the request argument `limit`
				$limitFilter = function(?string $value) : int {
					// Any non-integer values and integer value 0 are interpreted as "no limit".
					// On the other hand, the API spec mandates limiting responses to 5000 entries
					// even if no limit or larger limit has been passed.
					$value = (int)$value;
					if ($value <= 0) {
						$value = 5000;
					}
					return \min($value, 5000);
				};

				$parameterExtractor = new RequestParameterExtractor($this->request, ['limit' => $limitFilter]);
				try {
					$parameterValues = $parameterExtractor->getParametersForMethod($this, $action);
				} catch (RequestParameterExtractorException $ex) {
					throw new AmpacheException($ex->getMessage(), 400);
				}
				$response = \call_user_func_array([$this, $action], $parameterValues);
				// The API methods may return either a Response object or an array, which should be converted to Response
				if (!($response instanceof Response)) {
					$response = $this->ampacheResponse($response);
				}
				return $response;
			}
		}

		// No method was found for this action
		$this->logger->log("Unsupported Ampache action '$action' requested", 'warn');
		throw new AmpacheException('Action not supported', 405);
	}