Initial commit

src/Message.php

@@ -0,0 +1,88 @@
+<?php
+
+namespace NoccyLabs\React\CommandBus;
+
+use JsonSerializable;
+use Symfony\Component\Uid\Uuid;
+
+/**
+ * A serializable message frame
+ *
+ */
+class Message implements JsonSerializable
+{
+    /** @var string Execute request */
+    const MSGTYPE_EXECUTE = 'execute';
+    /** @var string Execute result */
+    const MSGTYPE_RESULT = 'result';
+    /** @var string Notify event */
+    const MSGTYPE_NOTIFY = 'notify';
+    /** @var string Registry update (command list set and update) */
+    const MSGTYPE_REGISTRY = 'registry';
+
+    /** @var string $uuid The message identifier */
+    private string $uuid;
+
+    private string $messageType;
+
+    private array $messageData;
+
+    public function __construct(string $messageType, array $messageData = [], ?string $uuid = null)
+    {
+        $this->uuid = ($uuid && Uuid::isValid($uuid)) ? $uuid : (string)Uuid::v7();
+        $this->messageType = $messageType;
+        $this->messageData = $messageData;
+    }
+
+    public function getUuid(): string
+    {
+        return $this->uuid;
+    }
+
+    public function getType(): string
+    {
+        return $this->messageType;
+    }
+
+    public function getData(): array
+    {
+        return $this->messageData;
+    }
+
+    /**
+     *
+     * @param string $data The JSON-encoded message data
+     * @return Message
+     * @throws MessageException if the message can not be parsed
+     */
+    public static function fromString(string $data): Message
+    {
+        $json = @json_decode($data, true);
+        if (!$json || empty($json['msg'])) {
+            throw new MessageException("Invalid data");
+        }
+        return new Message($json['msg'], $json['data'], $json['uuid']);
+    }
+
+    public function asResult($result): Message
+    {
+        return new Message(self::MSGTYPE_RESULT, [
+            'result' => $result
+        ], $this->uuid);
+    }
+
+    public function toJson(): string
+    {
+        return json_encode($this, JSON_UNESCAPED_SLASHES);
+    }
+
+    public function jsonSerialize(): array
+    {
+        return [
+            'uuid' => $this->uuid,
+            'msg' => $this->messageType,
+            'data' => $this->messageData
+        ];
+    }
+}
+