code: private function addRoute($method)
      {
          switch ($method) {
              case 'index':
                  $methodMap          = ['GET'];
                  $realRoute          = '$route';
                  $controllerCallable = $this->controllerLocation.':indexAction';
                  break;
              case 'get':
                  $methodMap          = ['GET'];
                  $realRoute          = '$route/{id}';
                  $controllerCallable = $this->controllerLocation.':getAction';
                  break;
              case 'post':
                  $methodMap          = ['POST'];
                  $realRoute          = '$route';
                  $controllerCallable = $this->controllerLocation.':postAction';
                  break;
              case 'put':
                  $methodMap          = ['POST', 'PUT'];
                  $realRoute          = '$route/{id}';
                  $controllerCallable = $this->controllerLocation.':putAction';
                  break;
              case 'delete':
                  $methodMap          = ['DELETE'];
                  $realRoute          = '$route/{id}';
                  $controllerCallable = $this->controllerLocation.':deleteAction';
                  break;
              default:
                  throw new \Exception('Invalid method.'.$method);
                  break;
          }
          $methodMap = "['".implode("', '", $methodMap)."']";
          $command   = strtr($this->template, ['$methodMap' => $methodMap, '$route' => $realRoute, '$controllerCallable' => $controllerCallable]);
          // $app->map(['GET'], '/trails', 'EarlyBird\Controllers\TrailsController:index');
          // $app->map(['GET'], '/texts/{stage}', 'EarlyBird\Controllers\TrailsController:get');
          // $app->map(['POST'], '/trails', 'EarlyBird\Controllers\TrailsController:post');
          // $app->map(['POST', 'PUT'], '/trails/{id}', 'EarlyBird\Controllers\TrailsController:put');
          $this->commands[] = $command;
      }
docs: Process the requrested method into a route template
  
  @param string $method
  
  @return void