fix kevaNamespaceValue method, remove chache

src/Twig/AppExtension.php

@@ -199,9 +199,6 @@ class AppExtension extends AbstractExtension
         return $texts[(($number % 100) > 4 && ($number % 100) < 20) ? 2 : $cases[min($number % 10, 5)]];
     }
 
-    // @TODO
-    // this is fix of keva magic with Kevachat\Kevacoin\Client::kevaListNamespaces results (on pending transactions exist in the namespaces)
-    // let's extract it from latest_KEVA_NS_ value and temporarily store results in memory cache
     public function kevaNamespaceValue(
         string $namespace
     ): string
@@ -221,52 +218,13 @@ class AppExtension extends AbstractExtension
             $this->container->getParameter('app.kevacoin.password')
         );
 
-        // Connect memcached
-        $memcached = new \Memcached();
-        $memcached->addServer(
-            $this->container->getParameter('app.memcached.host'),
-            $this->container->getParameter('app.memcached.port')
-        );
-
-        // Generate unique cache key
-        $key = md5(
-            sprintf(
-                '%s.AppExtension::kevaNamespaceValue:%s',
-                __DIR__,
-                $namespace
-            )
-        );
-
-        // Return cached value if exists
-        if ($value = $memcached->get($key))
-        {
-            return $value;
-        }
-
-        // Find related room names
-        $_keva_ns = [];
-        foreach ((array) $client->kevaFilter($namespace) as $data)
+        // Extract value from wallet
+        if ($result = $client->kevaGet($namespace, '_KEVA_NS_'))
         {
-            if ($data['key'] == '_KEVA_NS_')
-            {
-                $_keva_ns[$data['height']] = $data['value'];
-            }
-        }
-
-        // Get last by it block height
-        if (!empty($_keva_ns))
-        {
-            $value = reset(
-                $_keva_ns
-            );
-
-            if ($memcached->set($key, $value, $this->container->getParameter('app.memcached.timeout')))
-            {
-                return (string) $value;
-            }
+            return (string) $result['value'];
         }
 
-        // Return original hash
+        // Return original hash if no success
         return $namespace;
     }
 }