public static function filepath_to_classname( $file, $installed_dir, $namespace ) {
		/**
		 * Convert path and filename into namespace and class
		 */
		$path_info        = str_ireplace( $installed_dir, '', $file );
		$path_info        = pathinfo( $path_info );
		$converted_dir    = str_replace( '/', '\\', $path_info['dirname'] );
		$converted_dir    = ucwords( $converted_dir, '_\\' );
		$filename_search  = [ static::$filename_prefix, '-' ];
		$filename_replace = [ '', '_' ];
		$class            = str_ireplace( $filename_search, $filename_replace, $path_info['filename'] );
		$class_name       = $namespace . $converted_dir . '\\' . ucwords( $class, '_' );

		return $class_name;
	}