/**
* @param array $listeners
* @return array
*/
private function mergeListenerGroups(array $listeners)
{
$listeners = new Collection($listeners);
return $listeners->keys()->reduce(function (Collection $carry, $listenerGroup) use($listeners) {
$events = new Collection($listeners->get($listenerGroup));
return $events->keys()->reduce(function (Collection $carry, $event) use($events) {
$listeners = $events->get($event);
if (!is_array($listeners)) {
throw InvalidArgumentException::typeMisMatch('array', $listeners);
}
return $carry->set($event, array_merge($carry->get($event, []), $listeners));
}, $carry);
}, new Collection())->getArrayCopy();
}
/**
* @param string $eventName
* @param array $listeners
* @param ContainerInterface $container
* @param EventDispatcher $dispatcher
* @throws \PhpSchool\PhpWorkshop\Exception\InvalidArgumentException
*/
private function attachListeners($eventName, array $listeners, ContainerInterface $container, EventDispatcher $dispatcher)
{
array_walk($listeners, function ($listener) use($eventName, $dispatcher, $container) {
if (is_callable($listener)) {
return $dispatcher->listen($eventName, $listener);
}
if (!is_string($listener)) {
throw new InvalidArgumentException(sprintf('Listener must be a callable or a container entry for a callable service.'));
}
if (!$container->has($listener)) {
throw new InvalidArgumentException(sprintf('Container has no entry named: "%s"', $listener));
}
$listener = $container->get($listener);
if (!is_callable($listener)) {
throw InvalidArgumentException::typeMisMatch('callable', $listener);
}
return $dispatcher->listen($eventName, $listener);
});
}
public function testExceptionFromTypeMisMatchConstructor()
{
$e = InvalidArgumentException::typeMisMatch('string', new \stdClass());
$this->assertEquals('Expected: "string" Received: "stdClass"', $e->getMessage());
}
