define(['css', 'require'], function(css, require) {
  
  var less = {};
  
  less.pluginBuilder = './less-builder';
  
  if (typeof window == 'undefined') {
    less.load = function(n, r, load) { load(); }
    return less;
  }
  
  //copy api methods from the css plugin
  less.normalize = function(name, normalize) {
    if (name.substr(name.length - 5, 5) == '.less')
      name = name.substr(0, name.length - 5);

    name = normalize(name);

    return name;
  }

  less.parse = function(less, callback) {
    // set initial configuration
    window.less = window.less || {
      env: 'development'
    };
    require(['./lessc'], function(lessc) {
      var css;
      var parser = new lessc.Parser();
      parser.parse(less, function(err, tree) {
        if (err)
          throw err;
        try {
          css = tree.toCSS();
        }
        catch(e) {
          throw new Error("LESS parse error: " + e.type + ", " + e.message);
        }
        //instant callback luckily for builds
        callback(css);
      });
    });
  }
  
  less.load = function(lessId, req, load, config) {
    css.load(lessId, req, load, config, less.parse);
  }
  
  return less;
});