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DateCommand.php
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DateCommand.php
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<?php
/**
* This file is part of the TelegramBot package.
*
* (c) Avtandil Kikabidze aka LONGMAN <akalongman@gmail.com>
*
* For the full copyright and license information, please view the LICENSE
* file that was distributed with this source code.
*/
namespace Longman\TelegramBot\Commands\UserCommands;
use Longman\TelegramBot\Commands\UserCommand;
use Longman\TelegramBot\Exception\TelegramException;
use Longman\TelegramBot\Request;
/**
* User "/date" command
*/
class DateCommand extends UserCommand
{
/**#@+
* {@inheritdoc}
*/
protected $name = 'date';
protected $description = 'Show date/time by location';
protected $usage = '/date <location>';
protected $version = '1.2.1';
protected $public = true;
/**#@-*/
/**
* Base URL for Google Maps API
*
* @var string
*/
private $base_url = 'https://maps.googleapis.com/maps/api';
/**
* Date format
*
* @var string
*/
private $date_format = 'd-m-Y H:i:s';
/**
* Get coordinates
*
* @param string $location
*
* @return array|boolean
*/
private function getCoordinates($location)
{
$url = $this->base_url . '/geocode/json?';
$params = 'address=' . urlencode($location);
$google_api_key = $this->getConfig('google_api_key');
if (!empty($google_api_key)) {
$params .= '&key=' . $google_api_key;
}
$data = $this->request($url . $params);
if (empty($data)) {
return false;
}
$data = json_decode($data, true);
if (empty($data)) {
return false;
}
if ($data['status'] !== 'OK') {
return false;
}
$lat = $data['results'][0]['geometry']['location']['lat'];
$lng = $data['results'][0]['geometry']['location']['lng'];
$acc = $data['results'][0]['geometry']['location_type'];
$types = $data['results'][0]['types'];
return [$lat, $lng, $acc, $types];
}
/**
* Get date
*
* @param string $lat
* @param string $lng
*
* @return array|boolean
*/
private function getDate($lat, $lng)
{
$url = $this->base_url . '/timezone/json?';
$date_utc = new \DateTime(null, new \DateTimeZone("UTC"));
$timestamp = $date_utc->format('U');
$params = 'location=' . urlencode($lat) . ',' . urlencode($lng) . '&timestamp=' . urlencode($timestamp);
$google_api_key = $this->getConfig('google_api_key');
if (!empty($google_api_key)) {
$params .= '&key=' . $google_api_key;
}
$data = $this->request($url . $params);
if (empty($data)) {
return false;
}
$data = json_decode($data, true);
if (empty($data)) {
return false;
}
if ($data['status'] !== 'OK') {
return false;
}
$local_time = $timestamp + $data['rawOffset'] + $data['dstOffset'];
return [$local_time, $data['timeZoneId']];
}
/**
* Get formatted date
*
* @param string $location
*
* @return string
*/
private function getFormattedDate($location)
{
if (empty($location)) {
return 'The time in nowhere is never';
}
list($lat, $lng, $acc, $types) = $this->getCoordinates($location);
if (empty($lat) || empty($lng)) {
return 'It seems that in "' . $location . '" they do not have a concept of time.';
}
list($local_time, $timezone_id) = $this->getDate($lat, $lng);
$date_utc = new \DateTime(gmdate('Y-m-d H:i:s', $local_time), new \DateTimeZone($timezone_id));
return 'The local time in ' . $timezone_id . ' is: ' . $date_utc->format($this->date_format);
}
/**
* Perform a simple cURL request
*
* @param string $url
*
* @return object
*/
private function request($url)
{
$ch = curl_init();
$curlConfig = [CURLOPT_URL => $url, CURLOPT_RETURNTRANSFER => true];
curl_setopt_array($ch, $curlConfig);
$response = curl_exec($ch);
$http_code = curl_getinfo($ch, CURLINFO_HTTP_CODE);
if ($http_code !== 200) {
throw new TelegramException('Error receiving data from url');
}
curl_close($ch);
return $response;
}
/**
* {@inheritdoc}
*/
public function execute()
{
$message = $this->getMessage();
$chat_id = $message->getChat()->getId();
$message_id = $message->getMessageId();
$text = $message->getText(true);
if (empty($text)) {
$text = 'You must specify location in format: /date <city>';
} else {
$date = $this->getformattedDate($text);
if (empty($date)) {
$text = 'Can not find date for location: ' . $text;
} else {
$text = $date;
}
}
$data = [
'chat_id' => $chat_id,
'reply_to_message_id' => $message_id,
'text' => $text,
];
return Request::sendMessage($data);
}
}

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