<?php
namespace BotMan\Drivers\Telegram;
use BotMan\BotMan\Messages\Attachments\File;
use BotMan\BotMan\Messages\Incoming\IncomingMessage;
use BotMan\Drivers\Telegram\Exceptions\TelegramAttachmentException;
use BotMan\Drivers\Telegram\Extensions\Attachments\FileException;
class TelegramFileDriver extends TelegramDriver
{
const DRIVER_NAME = 'TelegramFile';
/**
* Determine if the request is for this driver.
*
* @return bool
*/
public function matchesRequest()
{
return !is_null($this->event->get('from')) && (!is_null($this->event->get('document')));
}
/**
* @return bool
*/
public function hasMatchingEvent()
{
return false;
}
/**
* Retrieve the chat message.
*
* @return array
*/
public function getMessages()
{
if (empty($this->messages)) {
$this->loadMessages();
}
return $this->messages;
}
/**
* Load Telegram messages.
*/
public function loadMessages()
{
$message = new IncomingMessage(
File::PATTERN,
$this->event->get('from')['id'],
$this->event->get('chat')['id'],
$this->event
);
$message->setFiles($this->getFiles());
$this->messages = [$message];
}
/**
* Retrieve a file from an incoming message.
* @return array A download for the files.
* @throws TelegramAttachmentException
*/
private function getFiles()
{
$file = $this->event->get('document');
$response = $this->http->get($this->buildApiUrl('getFile'), [
'file_id' => $file['file_id'],
]);
$responseData = json_decode($response->getContent());
if ($response->getStatusCode() !== 200) {
return [new FileException($responseData->description)];
}
$url = $this->buildFileApiUrl($responseData->result->file_path);
return [new File($url, $file)];
}
/**
* @return bool
*/
public function isConfigured()
{
return false;
}
}