amphp (#11)

src/Frame/Error.php

@@ -0,0 +1,24 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Frame;
+
+use Nsq\Exception\ServerException;
+use Nsq\Frame;
+
+/**
+ * @psalm-immutable
+ */
+final class Error extends Frame
+{
+    public function __construct(public string $data)
+    {
+        parent::__construct(self::TYPE_ERROR);
+    }
+
+    public function toException(): ServerException
+    {
+        return new ServerException($this->data);
+    }
+}

src/Frame/Message.php

@@ -0,0 +1,19 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Frame;
+
+use Nsq\Frame;
+
+final class Message extends Frame
+{
+    public function __construct(
+        public int $timestamp,
+        public int $attempts,
+        public string $id,
+        public string $body,
+    ) {
+        parent::__construct(self::TYPE_MESSAGE);
+    }
+}

src/Frame/Response.php

@@ -0,0 +1,39 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Nsq\Frame;
+
+use Nsq\Frame;
+
+/**
+ * @psalm-immutable
+ */
+final class Response extends Frame
+{
+    public const OK = 'OK';
+    public const HEARTBEAT = '_heartbeat_';
+
+    public function __construct(public string $data)
+    {
+        parent::__construct(self::TYPE_RESPONSE);
+    }
+
+    public function isOk(): bool
+    {
+        return self::OK === $this->data;
+    }
+
+    public function isHeartBeat(): bool
+    {
+        return self::HEARTBEAT === $this->data;
+    }
+
+    /**
+     * @return array<mixed, mixed>
+     */
+    public function toArray(): array
+    {
+        return json_decode($this->data, true, flags: JSON_THROW_ON_ERROR);
+    }
+}