replace mention txid with it original message

src/controller/room.php

@@ -48,7 +48,7 @@ class Room
             foreach ((array) $this->_kevacoin->kevaFilter($namespace['namespaceId']) as $record)
             {
                 // Is protocol compatible post
-                if ($this->post($namespace['namespaceId'], $record['key'], 'txid'))
+                if ($this->post($namespace['namespaceId'], $record['key'], [], 'txid'))
                 {
                     $total++;
                 }
@@ -136,33 +136,35 @@ class Room
 
     public function posts(string $namespace): ?string
     {
-        // Get subject
-        $subject = null;
-
-        foreach ((array) $this->_kevacoin->kevaListNamespaces() as $record)
+        // Get namespace records
+        if (!$records = (array) $this->_kevacoin->kevaFilter($namespace))
         {
-            if ($record['namespaceId'] == $namespace)
-            {
-                $subject = $record['displayName'];
-            }
+            return null;
         }
 
         // Get posts
         $posts = [];
 
-        foreach ((array) $this->_kevacoin->kevaFilter($namespace) as $record)
+        foreach ($records as $record)
         {
-            if (empty($record['key']))
+            if ($post = $this->post($namespace, $record['key'], $records))
             {
-                continue;
+                $posts[] = $post;
             }
+        }
 
-            if ($post = $this->post($namespace, $record['key']))
+        // Get subject
+        $subject = null;
+
+        foreach ((array) $this->_kevacoin->kevaListNamespaces() as $record)
+        {
+            if ($record['namespaceId'] == $namespace)
             {
-                $posts[] = $post;
+                $subject = $record['displayName'];
             }
         }
 
+        // Get template
         return str_replace(
             [
                 '{logo}',
@@ -185,7 +187,7 @@ class Room
         );
     }
 
-    public function post(string $namespace, string $key, ?string $field = null): ?string
+    public function post(string $namespace, string $key, array $posts = [], ?string $field = null): ?string
     {
         // Check record exists
         if (!$record = (array) $this->_kevacoin->kevaGet($namespace, $key))
@@ -239,9 +241,30 @@ class Room
         $quote = null;
         if (preg_match('/^@([A-z0-9]{64})/', $record['value'], $mention))
         {
+            // Message starts with mention
             if (!empty($mention[1]))
             {
-                $quote = '@' . $mention[1]; // @TODO replace to post message by txid
+                // Use original mention as quote by default
+                $quote = $mention[1];
+
+                // Try to replace with post message by txid
+                foreach ($posts as $post)
+                {
+                    if ($post['txid'] == $quote)
+                    {
+                        // Strip folding
+                        $quote =
+                        trim(
+                            preg_replace(
+                                '/^@([A-z0-9]{64})/',
+                                null,
+                                $post['value']
+                            )
+                        );
+
+                        break;
+                    }
+                }
 
                 // Remove mention from message
                 $record['value'] = preg_replace('/^@([A-z0-9]{64})/', null, $record['value']);