const channel = process.env.NODE_ENV;

const s = JSON.stringify;

module.exports = function() {
  return {
    __DARWIN__: process.platform === 'darwin',
    __WIN32__: process.platform === 'win32',
    __LINUX__: process.platform === 'linux',
    __DEV__: channel === 'development',
    'process.platform': s(process.platform),
    'process.env.NODE_ENV': s(process.env.NODE_ENV || 'development'),
    'process.env.TEST_ENV': s(process.env.TEST_ENV)
  };
};