'use strict';

var enabled;
var hasRequiredEnabled;

function requireEnabled () {
	if (hasRequiredEnabled) return enabled;
	hasRequiredEnabled = 1;

	/**
	 * Checks if a given namespace is allowed by the given variable.
	 *
	 * @param {String} name namespace that should be included.
	 * @param {String} variable Value that needs to be tested.
	 * @returns {Boolean} Indication if namespace is enabled.
	 * @public
	 */
	enabled = function enabled(name, variable) {
	  if (!variable) return false;

	  var variables = variable.split(/[\s,]+/)
	    , i = 0;

	  for (; i < variables.length; i++) {
	    variable = variables[i].replace('*', '.*?');

	    if ('-' === variable.charAt(0)) {
	      if ((new RegExp('^'+ variable.substr(1) +'$')).test(name)) {
	        return false;
	      }

	      continue;
	    }

	    if ((new RegExp('^'+ variable +'$')).test(name)) {
	      return true;
	    }
	  }

	  return false;
	};
	return enabled;
}

exports.__require = requireEnabled;
