var specificity = require('route-order')();
var express = require('express');

function OKServer(options) {
  if (!(this instanceof OKServer)) return new OKServer(options);
  options = options || {};
  if (!options.views)
    throw new Error('No views provided to OKServer!');
  var views = options.views;
  var app = this._app = express();
  // Add views
  Object.keys(views)
    .sort(specificity)
    .forEach(function(route) {
      app.use(route, views[route].middleware());
    });
}

OKServer.prototype.listen = function listen(port) {
  this._app.listen(port || 1337);
  return this;
};

module.exports = OKServer;