// tslint:disable-next-line
const Path = require('path');
// tslint:disable-next-line
const webpack = require('webpack');

export const config = (options?: {
  entry: string;
  outputFilename: string;
  outputPath: string;
}) => {

  const res: any = {
    module: {
      loaders: [
        {
          test: /\.css$/,
          loader: 'style-loader!css-loader'
        },
        {
          test: /\.less$/,
          loader: 'style-loader!css-loader!less-loader'
        },
        {
          test: /\.png$/,
          loader: 'url-loader',
          query: {
            mimetype: 'image/png'
          }
        },
        {
          test: /\.ts(x)?$/,
          loader: [`babel-loader?presets[]=es2015,presets[]=stage-0,presets[]=react${ options ? ',presets[]=react-hmre' : '' }`, 'ts-loader']
        }
      ]
    },
    plugins: [
      new webpack.optimize.OccurrenceOrderPlugin(),
      new webpack.HotModuleReplacementPlugin(),
      new webpack.NoEmitOnErrorsPlugin()
    ],
    resolve: {
      extensions: ['.ts', '.tsx', '.js', '.less'],
      alias: {
        moment$: 'moment/moment.js'
      }
    }
  };

  if (options) {
    res.entry = [
      'eventsource-polyfill',
      'webpack-hot-middleware/client?path=/__webpack_hmr',
      options.entry
    ];
    res.output = {
      filename: options.outputFilename,
      path: options.outputPath
    };
  }

  return res;
};