feat: initial version

Signed-off-by: Sebastian Krupinski <root@LAPTOP-7DVOR6NC>

lib/Client/Mime/LazyMessage.php

@@ -0,0 +1,56 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Gricob\IMAP\Mime;
+
+use DateTimeImmutable;
+use Gricob\IMAP\Client;
+use Gricob\IMAP\Mime\Part\Part;
+
+class LazyMessage extends Message
+{
+    public function __construct(
+        private Client $client,
+        int $id,
+        ?array $headers = null,
+        ?DateTimeImmutable $internalDate = null,
+    ) {
+        $this->id = $id;
+
+        if (null !== $headers) {
+            $this->headers = $headers;
+        }
+
+        if (null !== $internalDate) {
+            $this->internalDate = $internalDate;
+        }
+    }
+
+    public function headers(): array
+    {
+        if (!isset($this->headers)) {
+            $this->headers = $this->client->fetchHeaders($this->id);
+        }
+
+        return parent::headers();
+    }
+
+    public function body(): Part
+    {
+        if (!isset($this->body)) {
+            $this->body = $this->client->fetchBody($this->id);
+        }
+
+        return parent::body();
+    }
+
+    public function internalDate(): DateTimeImmutable
+    {
+        if (!isset($this->internalDate)) {
+            $this->internalDate = $this->client->fetchInternalDate($this->id);
+        }
+
+        return parent::internalDate();
+    }
+}