Leverage Redis and queue to handle large packets

app/Classes/FTN/Packet.php

@@ -6,12 +6,13 @@ use Carbon\Carbon;
 use Illuminate\Support\Arr;
 use Illuminate\Support\Collection;
 use Illuminate\Support\Facades\Log;
+use Illuminate\Support\Facades\Redis;
 use Symfony\Component\HttpFoundation\File\File;
 
 use App\Classes\FTN as FTNBase;
 use App\Models\{Address,Domain,Setup,Software};
 
-class Packet extends FTNBase
+class Packet extends FTNBase implements \Iterator, \Countable
 {
 	private const LOGKEY = 'PKT';
 
@@ -57,6 +58,41 @@ class Packet extends FTNBase
 	public Collection $messages;		// Messages in the Packet
 	public Collection $errors;			// Messages that fail validation
 	private string $name;				// Packet name
+	public bool $use_redis = TRUE;		// Use redis for messages.
+	private int $index;					// Our array index
+
+	/**
+	 * Number of messages in this packet
+	 */
+	public function count(): int
+	{
+		return $this->messages->count();
+	}
+
+	public function current()
+	{
+		return $this->use_redis ? unserialize(Redis::get($this->key())) : $this->messages->get($this->index);
+	}
+
+	public function key()
+	{
+		return $this->messages->get($this->index);
+	}
+
+	public function next(): void
+	{
+		$this->index++;
+	}
+
+	public function rewind()
+	{
+		$this->index = 0;
+	}
+
+	public function valid()
+	{
+		return $this->use_redis ? ($this->key() && Redis::exists($this->key())) : $this->key();
+	}
 
 	public function __construct(Address $o=NULL)
 	{
@@ -359,7 +395,7 @@ class Packet extends FTNBase
 	 * @param Domain|null $domain
 	 * @throws InvalidPacketException
 	 */
-	public function parseMessage(string $message,Domain $domain=NULL): void
+	private function parseMessage(string $message,Domain $domain=NULL): void
 	{
 		$msg = Message::parseMessage($message,$domain);
 
@@ -369,7 +405,13 @@ class Packet extends FTNBase
 			Log::error(sprintf('%s:! %s Skipping...',self::LOGKEY,join('|',$msg->errors->messages()->get('from'))));
 
 		} else {
-			$this->messages->push($msg);
+			if ($this->use_redis) {
+				Redis::set($msg->msgid,serialize($msg));
+				$this->messages->push($msg->msgid);
+
+			} else {
+				$this->messages->push($msg);
+			}
 		}
 	}
 }