const webpack = require('webpack');
const autoprefixer = require('autoprefixer');
const ExtractTextPlugin = require('extract-text-webpack-plugin');

const PATHS = {
  MODULES: './node_modules',
  CMS_JS_SRC: './client/src',
  CMS_JS_DIST: './client/dist/js',
  CMS_CSS_SRC: './client/src/styles',
  CMS_CSS_DIST: './client/dist/styles',
};

// Used for autoprefixing css properties (same as Bootstrap Aplha.2 defaults)
const SUPPORTED_BROWSERS = [
  'Chrome >= 35',
  'Firefox >= 31',
  'Edge >= 12',
  'Explorer >= 9',
  'iOS >= 8',
  'Safari >= 8',
  'Android 2.3',
  'Android >= 4',
  'Opera >= 12',
];

module.exports = [
  {
    entry: {
      bundle: `${PATHS.CMS_JS_SRC}/bundles/bundle.js`,
      // See https://github.com/webpack/webpack/issues/300#issuecomment-45313650
      SilverStripeNavigator: [`${PATHS.CMS_JS_SRC}/legacy/SilverStripeNavigator.js`],
    },
    resolve: {
      modulesDirectories: [PATHS.CMS_JS_SRC, PATHS.MODULES],
    },
    output: {
      path: './client/dist',
      filename: 'js/[name].js',
    },
    externals: {
      i18n: 'i18n',
      jQuery: 'jQuery',
      'lib/Router': 'Router',
    },
    module: {
      loaders: [
        {
          test: /\.js$/,
          exclude: /(node_modules|thirdparty)/,
          loader: 'babel',
          query: {
            presets: ['es2015', 'react'],
            plugins: ['transform-object-assign'/* , 'transform-object-rest-spread' */],
            comments: false,
          },
        },
        {
          test: /\.scss$/,
          loader: ExtractTextPlugin.extract([
            'css?sourceMap&minimize&-core&discardComments',
            'postcss?sourceMap',
            'resolve-url',
            'sass?sourceMap',
          ], {
            publicPath: '../', // needed because bundle.css is in a subfolder
          }),
        },
        {
          test: /\.css$/,
          loader: ExtractTextPlugin.extract([
            'css?sourceMap&minimize&-core&discardComments',
            'postcss?sourceMap',
            'resolve-url',
          ], {
            publicPath: '../', // needed because bundle.css is in a subfolder
          }),
        },
        {
          test: /\.(png|gif|jpg|svg)$/,
          loader: 'file?name=images/[name].[ext]',
        },
        {
          test: /\.(woff|eot|ttf)$/,
          loader: 'file?name=fonts/[name].[ext]',
        },
      ],
    },
    postcss: [
      autoprefixer({ browsers: SUPPORTED_BROWSERS }),
    ],
    plugins: [
      new webpack.ProvidePlugin({
        $: 'jquery',
        jQuery: 'jquery',
        'ss.i18n': 'i18n',
      }),
      new webpack.optimize.UglifyJsPlugin({
        compress: {
          unused: false,
          warnings: false,
        },
        output: {
          beautify: false,
          semicolons: false,
          comments: false,
          max_line_len: 200,
        },
      }),
      new ExtractTextPlugin('styles/bundle.css', { allChunks: true }),
    ],
  },
  {
    name: 'css',
    entry: {
      'SilverStripeNavigator': `${PATHS.CMS_CSS_SRC}/SilverStripeNavigator.scss`,
    },
    output: {
      path: 'client/dist/styles',
      filename: '[name].css',
    },
    module: {
      loaders: [
        {
          test: /\.scss$/,
          loader: ExtractTextPlugin.extract([
            'css?sourceMap&minimize&-core&discardComments',
            'postcss?sourceMap',
            'resolve-url',
            'sass?sourceMap',
          ]),
        },
        {
          test: /\.css$/,
          loader: ExtractTextPlugin.extract([
            'css?sourceMap&minimize&-core&discardComments',
            'postcss?sourceMap',
          ]),
        },
        {
          test: /\.(png|gif|jpg|svg)$/,
          loader: `url?limit=10000&name=../images/[name].[ext]`,
        },
        {
          test: /\.(woff|eot|ttf)$/,
          loader: `file?name=../fonts/[name].[ext]`,
        },
      ],
    },
    postcss: [
      autoprefixer({ browsers: SUPPORTED_BROWSERS }),
    ],
    plugins: [
      new ExtractTextPlugin('[name].css', { allChunks: true }),
    ],
  },
];