var path = require('path')
var webpack = require('webpack')

var ExtractTextPlugin = require("extract-text-webpack-plugin")

var vueLoaderRule = {
    test: /\.vue$/,
    loader: 'vue-loader',
    options: {
    loaders: {
        'less': 'vue-style-loader!css-loader!less-loader',
    }
    }
};

var vueLoaderRuleProd = Object.assign({}, vueLoaderRule, {
    options: {
    loaders: {
        less: ExtractTextPlugin.extract({
        loader: 'css-loader!less-loader',
        fallbackLoader: 'vue-style-loader' // <- this is a dep of vue-loader, so no need to explicitly install if using npm3
        }),
        css: ExtractTextPlugin.extract({
        loader: 'css-loader',
        fallbackLoader: 'vue-style-loader' // <- this is a dep of vue-loader, so no need to explicitly install if using npm3
        })
    }
    }
});

module.exports = {
  entry: './src/main.js',
  output: {
    path: path.resolve(__dirname, './dist'),
    publicPath: '/dist/',
    filename: 'build.js'
  },
  module: {
    rules: [
      vueLoaderRule,
      {
        test: /\.js$/,
        loader: 'babel-loader',
        exclude: /node_modules/
      },
      {
        test: /\.(png|jpg|gif|svg)$/,
        loader: 'file-loader',
        options: {
          name: '[name].[ext]?[hash]'
        }
      }
    ]
  },
  resolve: {
    alias: {
      'vue$': 'vue/dist/vue.common.js'
    }
  },
  devServer: {
    historyApiFallback: true,
    noInfo: true
  },
  performance: {
    hints: false
  },
  plugins: [new ExtractTextPlugin("style.css")],
  devtool: '#eval-source-map'
}

if (process.env.NODE_ENV === 'production') {
  module.exports.devtool = '#source-map'

  // http://vue-loader.vuejs.org/en/workflow/production.html
  module.exports.plugins = (module.exports.plugins || []).concat([
    new webpack.DefinePlugin({
      'process.env': {
        NODE_ENV: '"production"'
      }
    }),
    new webpack.optimize.UglifyJsPlugin({
      sourceMap: true,
      compress: {
        warnings: false
      }
    }),
    new webpack.LoaderOptionsPlugin({
      minimize: true
    })
  ]);

  var adjustedRules = module.exports.module.rules;

    adjustedRules.splice(
    adjustedRules.indexOf(vueLoaderRule),
    1,
    vueLoaderRuleProd);

    module.exports.module.rules = adjustedRules;
}