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<?php
namespace Bitrix\Pull\Push\Message;
class GoogleMessage extends BaseMessage
{
const DEFAULT_PAYLOAD_MAXIMUM_SIZE = 4096;
public function __construct($sDeviceToken = null)
{
if (isset($sDeviceToken))
{
$this->addRecipient($sDeviceToken);
}
}
/**
* Returns batch of the message
* @return string
*/
public function getBatch()
{
$data = $this->getPayload();
$batch = "Content-type: application/json\r\n";
$batch .= "Content-length: " . strlen($data) . "\r\n";
$batch .= "\r\n";
$batch .= $data;
return base64_encode($batch);
}
public function getPayload(): string
{
$data = [
"data" => [
'contentTitle' => $this->title,
"contentText" => $this->text,
"badge" => $this->badge,
"messageParams" => $this->customProperties,
"category" => $this->getCategory(),
"sound" => $this->getSound(),
],
"time_to_live" => $this->expiryValue,
"priority" => "high",
"registration_ids" => $this->deviceTokens
];
return $this->strippedPayload($data);
}
public function strippedPayload($data): string {
$jsonPayload = json_encode($data, JSON_UNESCAPED_UNICODE);
$payloadLength = strlen($jsonPayload);
if ($payloadLength > self::DEFAULT_PAYLOAD_MAXIMUM_SIZE)
{
$text = $this->text;
$useSenderText = false;
if(array_key_exists("senderMessage", $this->customProperties))
{
$useSenderText = true;
$text = $this->customProperties["senderMessage"];
}
$maxTextLength = $nTextLen = strlen($text) - ($payloadLength - self::DEFAULT_PAYLOAD_MAXIMUM_SIZE);
if ($maxTextLength <= 0)
{
return false;
}
while (strlen($text = mb_substr($text, 0, --$nTextLen)) > $maxTextLength) ;
if($useSenderText)
{
$this->setCustomProperty("senderMessage", $text);
}
else
{
$this->setText($text);
}
return $this->getPayload();
}
return $jsonPayload;
}
}