class SentMessage

class SentMessage {
    private RawMessage $original;
    private RawMessage $raw;
    private string $messageId;
    private string $debug = '';
    
    /**
     * @internal
     */
    public function __construct(RawMessage $message, Envelope $envelope) {
        $message->ensureValidity();
        $this->original = $message;
        if ($message instanceof Message) {
            $message = clone $message;
            $headers = $message->getHeaders();
            if (!$headers->has('Message-ID')) {
                $headers->addIdHeader('Message-ID', $message->generateMessageId());
            }
            $this->messageId = $headers->get('Message-ID')
                ->getId();
            $this->raw = new RawMessage($message->toIterable());
        }
        else {
            $this->raw = $message;
        }
    }
    public function getMessage() : RawMessage {
        return $this->raw;
    }
    public function getOriginalMessage() : RawMessage {
        return $this->original;
    }
    public function getEnvelope() : Envelope {
        return $this->envelope;
    }
    public function setMessageId(string $id) : void {
        $this->messageId = $id;
    }
    public function getMessageId() : string {
        return $this->messageId;
    }
    public function getDebug() : string {
        return $this->debug;
    }
    public function appendDebug(string $debug) : void {
        $this->debug .= $debug;
    }
    public function toString() : string {
        return $this->raw
            ->toString();
    }
    public function toIterable() : iterable {
        return $this->raw
            ->toIterable();
    }

}