Enable mutable-content (IOS)

src/Message.php

@@ -4,6 +4,7 @@
 use paragraph1\phpFCM\Recipient\Recipient;
 use paragraph1\phpFCM\Recipient\Topic;
 use paragraph1\phpFCM\Recipient\Device;
+use paragraph1\phpFCM\Recipient\GroupTopic;
 
 /**
  * @author palbertini
@@ -28,6 +29,7 @@ class Message implements \JsonSerializable
  private $recipientType;
  private $timeToLive;
  private $delayWhileIdle;
+ private $mutableContent;
 
  /**
  * Represents the app's "Send-to-Sync" message.
@@ -47,7 +49,7 @@ class Message implements \JsonSerializable
  */
  public function addRecipient(Recipient $recipient)
  {
- if (!$recipient instanceof Device && !$recipient instanceof Topic) {
+ if (!$recipient instanceof Device && !$recipient instanceof Topic && !$recipient instanceof GroupTopic) {
  throw new \UnexpectedValueException('currently phpFCM only supports topic and single device messages');
  }
 
@@ -123,6 +125,10 @@ public function setDelayWhileIdle($delayWhileIdle)
  return $this;
  }
 
+ public function setMutableContent()
+ {
+ $this->mutableContent = 1;
+ }
  /**
  * @see https://firebase.google.com/docs/cloud-messaging/concept-options#collapsible_and_non-collapsible_messages
  *
@@ -166,6 +172,11 @@ public function jsonSerialize()
  if ($this->delayWhileIdle) {
  $jsonData['delay_while_idle'] = (bool)$this->delayWhileIdle;
  }
+
+ if ($this->mutableContent) {
+ $jsonData['mutable_content'] = (bool)$this->mutableContent;
+ }
+
  if ($this->contentAvailableFlag === TRUE) {
  $jsonData['content_available'] = TRUE;
  }
@@ -187,6 +198,18 @@ function (Topic $topic) { return sprintf("'%s' in topics", $topic->getIdentifier
  }
  $jsonData['to'] = sprintf('/topics/%s', current($this->recipients)->getIdentifier());
  break;
+
+ case GroupTopic::class:
+ if (count($this->recipients) > 1) {
+ $topics = array_map(
+ function (GroupTopic $topic) { return sprintf("'%s' in topics", $topic->getIdentifier()); },
+ $this->recipients
+ );
+ $jsonData['condition'] = implode(' && ', $topics);
+ break;
+ }
+ $jsonData['to'] = sprintf('/topics/%s', current($this->recipients)->getIdentifier());
+ break;
  default:
  if (count($this->recipients) === 1) {
  $jsonData['to'] = current($this->recipients)->getIdentifier();
@@ -199,4 +222,4 @@ function (Topic $topic) { return sprintf("'%s' in topics", $topic->getIdentifier
  }
  }
  }
-}
+}

src/Recipient/GroupTopic.php

@@ -0,0 +1,17 @@
+<?php
+namespace paragraph1\phpFCM\Recipient;
+
+class GroupTopic implements Recipient
+{
+ private $name;
+
+ public function __construct($name)
+ {
+ $this->name = $name;
+ }
+
+ public function getIdentifier()
+ {
+ return $this->name;
+ }
+}

tests/MessageTest.php

@@ -133,6 +133,18 @@ public function testJsonEncodeHandlesDelayIdle()
  );
  }
 
+ public function testJsonEncodeHandlesMutableContent()
+ {
+ $body = '{"to":"\/topics\/testing","data":{"foo":"bar"},"priority":"high","mutable_content":true}';
+ $this->fixture->setData(['foo' => 'bar'])
+ ->setMutableContent();
+ $this->fixture->addRecipient(new Topic('testing'));
+ $this->assertSame(
+ $body,
+ json_encode($this->fixture)
+ );
+ }
+
  public function testAddingNewAndUnknownRecipientTypesYieldsException()
  {
  $this->setExpectedException(\UnexpectedValueException::class);