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ListenerResolver.php
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ListenerResolver.php
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<?php
declare(strict_types=1);
namespace Zanzara\Listener;
use React\Promise\Deferred;
use React\Promise\PromiseInterface;
use Zanzara\ConversationManager;
use Zanzara\Telegram\Type\CallbackQuery;
use Zanzara\Telegram\Type\Message;
use Zanzara\Telegram\Type\Update;
/**
*
*/
abstract class ListenerResolver extends ListenerCollector
{
/**
* @var ConversationManager
*/
protected $conversationManager;
/**
* @param Update $update
* @return PromiseInterface
*/
public function resolveListeners(Update $update): PromiseInterface
{
$deferred = new Deferred();
$listeners = [];
$updateType = $update->getUpdateType();
$this->mergeListenersByType($listeners, $updateType);
$this->mergeListenersByType($listeners, Update::class);
switch ($updateType) {
case CallbackQuery::class:
$callbackQuery = $update->getCallbackQuery();
$text = $callbackQuery->getMessage() ? $callbackQuery->getMessage()->getText() : null;
if ($text) {
$this->findListenerAndPush($listeners, 'cb_query_texts', $text);
}
if ($callbackQuery->getData()) {
$this->findListenerAndPush($listeners, 'cb_query_data', $callbackQuery->getData());
}
$chatId = $update->getEffectiveChat() ? $update->getEffectiveChat()->getId() : null;
if ($chatId) {
$this->conversationManager->getConversationHandler($chatId)
->then(function ($handlerInfo) use ($deferred, &$listeners) {
if ($handlerInfo) {
$listeners[] = new Listener($handlerInfo[0], $this->container);
}
$deferred->resolve($listeners);
})->otherwise(function ($e) use ($deferred) {
// if something goes wrong, reject the promise
$deferred->reject($e);
});
} else {
$deferred->resolve($listeners);
}
break;
case Message::class:
$text = $update->getMessage()->getText();
$chatId = $update->getEffectiveChat()->getId();
$this->conversationManager->getConversationHandler($chatId)
->then(function ($handlerInfo) use ($chatId, $text, $deferred, &$listeners) {
if (!$handlerInfo) {
if ($text) {
$this->findListenerAndPush($listeners, 'messages', $text);
} elseif ($this->fallbackListener) {
$listeners[] = $this->fallbackListener;
}
$deferred->resolve($listeners);
return;
}
$skipListeners = $handlerInfo[1];
if (!$skipListeners && $text) {
$listener = $this->findListenerAndPush($listeners, 'messages', $text);
if (!$listener) {
$listeners[] = new Listener($handlerInfo[0], $this->container);
} else {
$this->conversationManager->deleteConversationCache($chatId);
}
} else {
$listeners[] = new Listener($handlerInfo[0], $this->container);
}
$deferred->resolve($listeners);
})->otherwise(function ($e) use ($deferred) {
// if something goes wrong, reject the promise
$deferred->reject($e);
});
break;
default:
$deferred->resolve($listeners);
}
return $deferred->promise();
}
/**
* @param Listener[] $listeners
* @param string $listenerType
* @param string $listenerId
* @return Listener|null
*/
private function findListenerAndPush(array &$listeners, string $listenerType, string $listenerId): ?Listener
{
$typedListeners = $this->listeners[$listenerType] ?? [];
foreach ($typedListeners as $regex => $listener) {
if (preg_match($regex, $listenerId)) {
$listeners[] = $listener;
return $listener;
}
}
if ($this->fallbackListener !== null) {
$listeners[] = $this->fallbackListener;
return $this->fallbackListener;
}
return null;
}
/**
* @param Listener[] $listeners
* @param string $listenerType
*/
private function mergeListenersByType(array &$listeners, string $listenerType)
{
$toMerge = $this->listeners[$listenerType] ?? null;
if ($toMerge) {
$listeners = array_merge($listeners, $toMerge);
}
}
}