'use strict';
  
  var fs = require('fs')
    , path = require('path')
    , browserify = require('browserify')
    , uglify = require('uglify-js');
  
  var pkg = process.argv[2]
    , standalone = process.argv[3]
    , compress = process.argv[4];
  
  var packageDir = path.join(__dirname, '..');
  if (pkg != '.') packageDir = path.join(packageDir, 'node_modules', pkg);
  
  var json = require(path.join(packageDir, 'package.json'));
  
  var distDir = path.join(__dirname, '..', 'dist');
  if (!fs.existsSync(distDir)) fs.mkdirSync(distDir);
  
  var bOpts = {};
  if (standalone) bOpts.standalone = standalone;
  
  browserify(bOpts)
  .require(path.join(packageDir, json.main), {expose: json.name})
  .bundle(function (err, buf) {
    if (err) {
      console.error('browserify error:', err);
      process.exit(1);
    }
  
    var outputFile = path.join(distDir, json.name);
    var outputBundle = outputFile + '.bundle.js';
    fs.writeFileSync(outputBundle, buf);
    var uglifyOpts = {
      warnings: true,
      compress: {},
      output: {
        preamble: '/* ' + json.name + ' ' + json.version + ': ' + json.description + ' */'
      }
    };
    if (compress) {
      var compressOpts = compress.split(',');
      for (var i=0; i<compressOpts.length; ++i) {
        var pair = compressOpts[i].split('=');
        uglifyOpts.compress[pair[0]] = pair.length < 1 || pair[1] != 'false';
      }
    }
    if (standalone) uglifyOpts.outSourceMap = json.name + '.min.js.map';
  
    var result = uglify.minify(outputBundle, uglifyOpts);
    fs.writeFileSync(outputFile + '.min.js', result.code);
    if (result.map) fs.writeFileSync(outputFile + '.min.js.map', result.map);
    if (!standalone) fs.unlinkSync(outputBundle);
  });