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

var extractPlugin = new ExtractTextPlugin({
  filename: 'bundle.css'
});
var htmlPlugin = new HtmlWebpackPlugin({
  template: 'src/index.html'
});

module.exports = env => {
  return  {
    mode: 'development',
    entry: [
      './src/js/meep-controller.js'
    ],
    output: {
      filename: 'bundle.js',
      path: path.resolve(__dirname, 'dist')
    },
    node: {
      fs: 'empty'
    },
    resolve: {
      extensions: ['.js', '.json'],
      alias: {
        '@': path.resolve('src')
      }
    },
    module: {
      rules: [
        {
          parser: {
            amd: false
          }
        },
        {
          test: /\.jsx?$/,
          exclude: /node_modules/,
          use: [
            {
              loader: 'babel-loader',
              options: {
                presets: [require.resolve('@babel/preset-react')]
              }
            }]
        },
        {
          test: /\.scss$/,
          use: extractPlugin.extract({
            use: [
              {
                loader: 'css-loader'
              },
              {
                loader: 'sass-loader',
                options: {
                  includePaths: ['./node_modules/material-components-web/node_modules', './node_modules']
                // importer: function(url, prev) {
                //     if (url.indexOf('@material') === 0) {
                //         var filePath = url.split('@material')[1];
                //         var nodeModulePath = `./node_modules/material-components-web/node_modules/@material/${filePath}`;
                //         return { file: require('path').resolve(nodeModulePath) };
                //     }
                //     return { file: url };
                // }
                }
              }]
          })
        },
        {
          test: /\.css$/,
          use: extractPlugin.extract({
            use: ['css-loader']
          })
        },
        {
          test: /\.(png|svg|jpg|gif)$/,
          use: [
            {
              loader: 'file-loader',
              options: {
                name: '[name].[ext]',
                outputPath: 'img',
                publicPath: 'img'
              }
            }]
        },
        {
          test: /\.(ttf|woff|woff2|eot)$/,
          use: [
            {
              loader: 'file-loader',
              options: {
                name: '[name].[ext]',
                outputPath: 'icons',
                publicPath: 'icons'
              }
            }]
        },
        {
          test: /\.html$/,
          use: ['html-loader']
        }]
    },
    plugins: [
      extractPlugin,
      htmlPlugin,
      new webpack.DefinePlugin({
        __VERSION__: JSON.stringify(env.VERSION ? env.VERSION : 'v0.0.0')
      })
    ],
    devServer: {
      proxy: {
        '/': {
          target: 'https://' + (env ? env.MEEP_HOST : ''),
          secure: false
        }
      }
    }
  };
};
