text: var _       = require('lodash'),
      express = require('express'),
      path    = require('path'),
      api     = require('../api'),
      config  = require('../config'),
      utils   = require('../utils');
  
  function isBlackListedFileType(file) {
      var blackListedFileTypes = ['.hbs', '.md', '.json'],
          ext = path.extname(file);
      return _.contains(blackListedFileTypes, ext);
  }
  
  function forwardToExpressStatic(req, res, next) {
      api.settings.read({context: {internal: true}, key: 'activeTheme'}).then(function then(response) {
          var activeTheme = response.settings[0];
  
          express['static'](path.join(config.paths.themePath, activeTheme.value), {maxAge: utils.ONE_YEAR_MS})(req, res, next);
      });
  }
  
  function staticTheme() {
      return function blackListStatic(req, res, next) {
          if (isBlackListedFileType(req.url)) {
              return next();
          }
          return forwardToExpressStatic(req, res, next);
      };
  }
  
  module.exports = staticTheme;
  