/**
* Handles incoming websocket messages, parses them, and emits them as remote events.
*
* @param WebSocketMessageInterface $messageRaw A websocket message.
*/
private function onMessage(WebSocketMessageInterface $message)
{
// parse the message and get the event name
$payload = Payload::fromJson($message->getData());
if (isset($payload['type'])) {
switch ($payload['type']) {
case 'hello':
$this->connected = true;
break;
case 'team_rename':
$this->team->data['name'] = $payload['name'];
break;
case 'team_domain_change':
$this->team->data['domain'] = $payload['domain'];
break;
case 'channel_created':
$this->getChannelById($payload['channel']['id'])->then(function (Channel $channel) {
$this->channels[$channel->getId()] = $channel;
});
break;
case 'channel_deleted':
unset($this->channels[$payload['channel']['id']]);
break;
case 'channel_rename':
$this->channels[$payload['channel']['id']]->data['name'] = $payload['channel']['name'];
break;
case 'channel_archive':
$this->channels[$payload['channel']['id']]->data['is_archived'] = true;
break;
case 'channel_unarchive':
$this->channels[$payload['channel']['id']]->data['is_archived'] = false;
break;
case 'group_joined':
$group = new Group($this, $payload['channel']);
$this->groups[$group->getId()] = $group;
break;
case 'group_rename':
$this->groups[$payload['group']['id']]->data['name'] = $payload['channel']['name'];
break;
case 'group_archive':
$this->groups[$payload['group']['id']]->data['is_archived'] = true;
break;
case 'group_unarchive':
$this->groups[$payload['group']['id']]->data['is_archived'] = false;
break;
case 'im_created':
$dm = new DirectMessageChannel($this, $payload['channel']);
$this->dms[$dm->getId()] = $dm;
break;
}
// emit an event with the attached json
$this->emit($payload['type'], [$payload]);
} else {
// If reply_to is set, then it is a server confirmation for a previously
// sent message
if (isset($payload['reply_to'])) {
if (isset($this->pendingMessages[$payload['reply_to']])) {
$deferred = $this->pendingMessages[$payload['reply_to']];
// Resolve or reject the promise that was waiting for the reply.
if (isset($payload['ok']) && $payload['ok'] === true) {
$deferred->resolve();
} else {
$deferred->reject($payload['error']);
}
unset($this->pendingMessages[$payload['reply_to']]);
}
}
}
}
/**
* Sends an API request.
*
* @param string $method The API method to call.
* @param array $args An associative array of arguments to pass to the
* method call.
*
* @return \React\Promise\PromiseInterface A promise for an API response.
*/
public function apiCall($method, array $args = [])
{
// create the request url
$requestUrl = self::BASE_URL . $method;
// set the api token
$args['token'] = $this->token;
// send a post request with all arguments
$promise = $this->httpClient->postAsync($requestUrl, ['form_params' => $args]);
// Add requests to the event loop to be handled at a later date.
$this->loop->futureTick(function () use($promise) {
$promise->wait();
});
// When the response has arrived, parse it and resolve. Note that our
// promises aren't pretty; Guzzle promises are not compatible with React
// promises, so the only Guzzle promises ever used die in here and it is
// React from here on out.
$deferred = new Deferred();
$promise->then(function (ResponseInterface $response) use($deferred) {
// get the response as a json object
$payload = Payload::fromJson((string) $response->getBody());
// check if there was an error
if (isset($payload['ok']) && $payload['ok'] === true) {
$deferred->resolve($payload);
} else {
// make a nice-looking error message and throw an exception
$niceMessage = ucfirst(str_replace('_', ' ', $payload['error']));
$deferred->reject(new ApiException($niceMessage));
}
});
return $deferred->promise();
}
