/**
* Sends reply messages.
*
* @param UserEventInterface $event
* @param Queue $queue
* @param array|string $messages
*/
protected function sendReply(UserEventInterface $event, Queue $queue, $messages)
{
$method = 'irc' . $event->getCommand();
if (is_array($messages)) {
$target = $event->getSource();
foreach ($messages as $message) {
$queue->{$method}($target, $message);
}
} else {
$queue->{$method}($event->getSource(), $messages);
}
}
/**
* Copies data from an existing event into this one.
*
* @param \Phergie\Irc\Event\UserEventInterface $event
*/
public function fromEvent(UserEventInterface $event)
{
// EventInterface
$this->setMessage($event->getMessage());
$this->setConnection($event->getConnection());
$this->setParams($event->getParams());
$this->setCommand($event->getCommand());
// UserEventInterface
$this->setPrefix($event->getPrefix());
$this->setNick($event->getNick());
$this->setUsername($event->getUsername());
$this->setHost($event->getHost());
$this->setTargets($event->getTargets());
}
/**
* Parses user events for commands and emits them as events.
*
* @param \Phergie\Irc\Event\UserEventInterface $event
* @param \Phergie\Irc\Bot\React\EventQueueInterface $queue
*/
public function parseCommand(UserEventInterface $event, EventQueueInterface $queue)
{
// Get the pattern to identify commands
if ($this->nick) {
$nick = $event->getConnection()->getNickname();
$identity = $this->getNickPattern($nick);
} else {
$identity = $this->identityPattern;
}
// Verify this event contains a command and remove the substring
// identifying it as one
$eventParams = $event->getParams();
$target = $event->getCommand() === 'PRIVMSG' ? $eventParams['receivers'] : $eventParams['nickname'];
$message = $eventParams['text'];
if ($identity) {
if (preg_match($identity, $message, $match)) {
$message = preg_replace($identity, '', $message);
} elseif (preg_match($this->channelPattern, $target)) {
return;
}
}
// Parse the command and its parameters
if (!preg_match($this->commandPattern, $message, $match)) {
return;
}
$customCommand = $match['command'];
if (!empty($match['params']) && preg_match_all($this->paramsPattern, $match['params'], $matches)) {
$customParams = array_map(function ($param) {
return trim($param, '"');
}, $matches[0]);
} else {
$customParams = array();
}
// Populate an event object with the parsed data
$commandEvent = $this->getCommandEvent();
$commandEvent->fromEvent($event);
$commandEvent->setCustomCommand($customCommand);
$commandEvent->setCustomParams($customParams);
// Emit the event object to listeners
$customEventName = 'command.' . strtolower($customCommand);
$customEventParams = array($commandEvent, $queue);
$this->getEventEmitter()->emit($customEventName, $customEventParams);
}
/**
* Extracts a list of channel names from a user event.
*
* @param \Phergie\Irc\Event\UserEventInterface $event
* @return array
*/
protected function getChannels(UserEventInterface $event)
{
$command = $event->getCommand();
if (isset($this->parameters[$command])) {
$params = $event->getParams();
$param = $this->parameters[$command];
return preg_grep('/^[#&]/', explode(',', $params[$param]));
}
return array();
}
