const Path = require('path');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const Webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');

module.exports = (options) => {
  const ExtractSASS = new ExtractTextPlugin(`/styles/${options.cssFileName}`);

  const webpackConfig = {
    devtool: options.devtool,
    entry: [
      `webpack-dev-server/client?http://localhost:${+options.port}`,
      'webpack/hot/dev-server',
      Path.join(__dirname, '../src/app/index'),
    ],
    output: {
      path: Path.join(__dirname, '../dist'),
      filename: `/scripts/${options.jsFileName}`,
    },
    resolve: {
      extensions: ['', '.js', '.jsx', '.css'],
    },
    module: {
      loaders: [
        {
          test: /.jsx?$/,
          include: Path.join(__dirname, '../src/app'),
          loader: 'babel',
        },
        {
          test: /\.css$/,
          include: [Path.resolve(__dirname, 'not_exist_path')],
          loader: ['style-loader', 'css-loader'],
        },
      ],
    },
    plugins: [
      new Webpack.DefinePlugin({
        'process.env': {
          NODE_ENV: JSON.stringify(options.isProduction ? 'production' : 'development'),
        },
      }),
      new HtmlWebpackPlugin(
        {
          template: Path.join(__dirname, '../src/index.html'),
        },
        new CopyWebpackPlugin([
          {
            from: '../static/',
            to: 'static',
          },
        ])
      ),
    ],
  };

  if (options.isProduction) {
    webpackConfig.entry = [Path.join(__dirname, '../src/app/index')];

    webpackConfig.plugins.push(
      new Webpack.optimize.OccurenceOrderPlugin(),
      new Webpack.optimize.UglifyJsPlugin({
        compressor: {
          warnings: false,
        },
      }),
      ExtractSASS
    );

    webpackConfig.module.loaders.push({
      test: /\.scss$/,
      loader: ExtractSASS.extract(['css', 'sass']),
    });
  } else {
    webpackConfig.plugins.push(new Webpack.HotModuleReplacementPlugin());

    webpackConfig.module.loaders.push({
      test: /\.scss$/,
      loaders: ['style', 'css', 'sass'],
    });

    webpackConfig.module.loaders.push({
      test: /\.css$/,
      include: /node_modules/,
      loaders: ['style-loader', 'css-loader'],
    });

    webpackConfig.devServer = {
      contentBase: Path.join(__dirname, '../'),
      hot: true,
      port: options.port,
      inline: true,
      progress: true,
      historyApiFallback: true,
      stats: 'errors-only',
      disableHostCheck: true,
      proxy: {
        '/api': 'http://localhost:4000',
      },
      allowedHosts: ['.amazonaws.com'],
    };
  }

  return webpackConfig;
};