add controller in theme support

controller/Controller.php

@@ -47,7 +47,7 @@ Class Controller {
 
             ob_end_flush();
         }else {
-            throw Exception("Layout file not exist: {$layoutFile}", 500);
+            throw new Exception("Layout file not exist: {$layoutFile}", 500);
         }
     }
 

lib/FSC.php

@@ -24,7 +24,10 @@ Class FSC {
             $layoutName = !empty($config['error_layout']) ? $config['error_layout'] : 'error';
             $error_layout = __DIR__ . "/../views/layout/{$layoutName}.php";
             if (!empty($config['theme'])) {
-                $error_layout = __DIR__ . "/../themes/{$config['theme']}/views/layout/{$layoutName}.php";
+                $theme_error_layout = __DIR__ . "/../themes/{$config['theme']}/views/layout/{$layoutName}.php";
+                if (file_exists($theme_error_layout)) {
+                    $error_layout = $theme_error_layout;
+                }
             }
             
             ob_start();
@@ -63,6 +66,7 @@ Class FSC {
         return compact('controller', 'action');
     }
 
+    //add themes support
     protected static function loadController($config) { 
         //parse url to controller and action
         $requestUrl = $_SERVER['REQUEST_URI'];
@@ -78,16 +82,27 @@ Class FSC {
         $className = ucfirst($controller) . 'Controller';
         $funName = 'action' . ucfirst($action);
         $controllerFile = __DIR__ . "/../controller/{$className}.php";
+        if (!empty($config['theme'])) {
+            $controllerFile = __DIR__ . "/../themes/{$config['theme']}/controller/{$className}.php";
+        }
         if (file_exists($controllerFile)) {
             require_once $controllerFile;
             $cls = new $className();
             if (method_exists($className, $funName)) {
                 $cls->$funName();
             }else {
-                throw new Exception("Function {$funName} not exist in class {$className}.", 500);
+                $error_message = "Function {$funName} not exist in class {$className}.";
+                if (!empty($config['theme'])) {
+                    $error_message = "Function {$funName} not exist in class {$className} of theme {$config['theme']}.";
+                }
+                throw new Exception($error_message, 500);
             }
         }else {
-            throw new Exception("Controller {$className} not exist.", 500);
+            $error_message = "Controller {$className} not exist.";
+            if (!empty($config['theme'])) {
+                $error_message = "Controller {$className} not exist in theme {$config['theme']}.";
+            }
+            throw new Exception($error_message, 500);
         }
     }