Add Multiple Devices support

Author: redjanym

src/Client.php

@@ -123,9 +123,8 @@ protected function processTopicSubscription($topic_id, $recipients_tokens, $url)
         );
     }
 
-
     private function getApiUrl()
     {
         return isset($this->proxyApiUrl) ? $this->proxyApiUrl : self::DEFAULT_API_URL;
     }
-}
+}

src/ClientInterface.php

@@ -43,4 +43,3 @@ function setProxyApiUrl($url);
     function send(Message $message);
 
 }
-   

src/Message.php

@@ -38,7 +38,7 @@ public function addRecipient(Recipient $recipient)
             $this->recipientType = get_class($recipient);
         }
         if ($this->recipientType !== get_class($recipient)) {
-            throw new \InvalidArgumentException('mixed recepient types are not supported by FCM');
+            throw new \InvalidArgumentException('Mixed recipient types are not supported by FCM');
         }
 
         return $this;
@@ -142,7 +142,14 @@ public function jsonSerialize()
             throw new \UnexpectedValueException('Message must have at least one recipient');
         }
 
-        $jsonData['to'] = $this->createTo();
+        $target = $this->createTo();
+
+        if(is_array($target)){
+            $jsonData['registration_ids'] = $target;
+        } else {
+            $jsonData['to'] = $target;
+        }
+
         if ($this->collapseKey) {
             $jsonData['collapse_key'] = $this->collapseKey;
         }
@@ -174,13 +181,16 @@ private function createTo()
             case Device::class:
                 if (count($this->recipients) == 1) {
                     return current($this->recipients)->getToken();
+                } else {
+                    return array_map(function($device){
+                        return $device->getToken();
+                    }, $this->recipients);
                 }
 
                 break;
             default:
                 throw new \UnexpectedValueException('PhpFirebaseCloudMessaging only supports single topic and single device messages yet');
                 break;
         }
-        return null;
     }
-}
+}

tests/ClientTest.php

@@ -32,7 +32,6 @@ public function testSendConstruesValidJsonForNotificationWithTopic()
             ->with(Client::DEFAULT_API_URL, array('headers' => $headers, 'body' => '{"to":"\\/topics\\/test"}'))
             ->andReturn(\Mockery::mock(Response::class));
 
-        $this->fixture->injectGuzzleHttpClient($guzzle);
         $this->fixture->setApiKey($apiKey);
 
         $message = new Message();