// Copyright 2014 Traceur Authors.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
//      http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.

'use strict';

var fs = require('fs');
var traceur = require('./traceur.js');
var path = require('path');

var nodeLoader = require('./nodeLoader.js');
var url = (path.resolve('./') + '/').replace(/\\/g, '/');


var LoaderCompiler = traceur.runtime.LoaderCompiler;
var NodeLoaderCompiler = function() {
  LoaderCompiler.call(this);
};

NodeLoaderCompiler.prototype = {
  __proto__: LoaderCompiler.prototype,
  evaluateCodeUnit: function(codeUnit) {
    var result =
        module._compile(codeUnit.metadata.transcoded, codeUnit.address);
    codeUnit.metadata.transformedTree = null;
    return result;
  }
};

var System = new traceur.runtime.TraceurLoader(nodeLoader, url,
    new NodeLoaderCompiler());

require('source-map-support').install({
  retrieveSourceMap: function(filename) {
    var map = System.getSourceMap(filename);
    if (map) {
      return {
        url: filename,
        map: map
      };
    }
  }
});

Reflect.global.System = System;
System.map = System.semverMap(System.version);

module.exports = System;