const path = require('path');
const DynamicRemotePlugin =
  require('@openshift/dynamic-plugin-sdk-webpack').DynamicRemotePlugin;
const CSSMinimizerPlugin = require('css-minimizer-webpack-plugin');
const webpack = require('webpack');
const TsconfigPathsPlugin = require('tsconfig-paths-webpack-plugin');
const pluginMetadata = require('./plugin-metadata.json');

// HCC development proxy
const proxy = require('@redhat-cloud-services/frontend-components-config-utilities/proxy');
const fs = require('fs');

const BG_IMAGES_DIRNAME = 'assets';

const isProd = process.env.NODE_ENV === 'production';

const pathTo = (relativePath) => path.resolve(__dirname, relativePath);

const publicPath =
  process.env.BETA === 'true' ? '/beta/apps/quay/' : '/apps/quay/';

/**
 * Shared modules consumed and/or provided by this plugin.
 *
 * A host application typically provides some modules to its plugins. If an application
 * provided module is configured as an eager singleton, we suggest using `import: false`
 * to avoid bundling a fallback version of the module when building your plugin.
 *
 * Plugins may provide additional shared modules that can be consumed by other plugins.
 *
 * @see https://webpack.js.org/plugins/module-federation-plugin/#sharing-hints
 */
const pluginSharedModules = {
  '@openshift/dynamic-plugin-sdk': {singleton: true, import: false},
  '@patternfly/react-core': {},
  '@patternfly/react-table': {},
  react: {singleton: true, import: false},
  'react-dom': {singleton: true, import: false},
  'react-router-dom': {singleton: true, import: false},
  '@scalprum/react-core': {singleton: true, import: false},
};

const plugins = [
  new webpack.EnvironmentPlugin({
    NODE_ENV: 'development',
  }),
  // required for SDK code
  new webpack.ProvidePlugin({
    process: 'process/browser',
  }),
  new DynamicRemotePlugin({
    pluginMetadata,
    extensions: [],
    sharedModules: pluginSharedModules,
    entryScriptFilename: isProd
      ? 'plugin-entry.[fullhash].min.js'
      : 'plugin-entry.js',
  }),
];

module.exports = {
  mode: isProd ? 'production' : 'development',
  entry: {}, // Plugin container entry is generated by DynamicRemotePlugin
  output: {
    path: pathTo('dist'),
    publicPath: publicPath,
    chunkFilename: isProd ? 'chunks/[id].[chunkhash].min.js' : 'chunks/[id].js',
    assetModuleFilename: isProd
      ? 'assets/[contenthash][ext]'
      : 'assets/[name][ext]',
  },
  resolve: {
    extensions: ['.ts', '.tsx', '.js', '.jsx'],
    fallback: {
      'process/browser': require.resolve('process/browser'),
    },
    plugins: [
      new TsconfigPathsPlugin({
        configFile: path.resolve(__dirname, './tsconfig.json'),
      }),
    ],
    symlinks: false,
    cacheWithContext: false,
  },
  module: {
    rules: [
      {
        test: /\.(jsx?|tsx?)$/,
        exclude: /\/node_modules\//,
        use: [
          {
            loader: 'ts-loader',
            options: {
              transpileOnly: true,
              experimentalWatchApi: true,
            },
          },
        ],
      },
      {
        test: /\.(svg|ttf|eot|woff|woff2)$/,
        // only process modules with this loader
        // if they live under a 'fonts' or 'pficon' directory
        include: [
          path.resolve(__dirname, 'node_modules/patternfly/dist/fonts'),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-core/dist/styles/assets/fonts',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-core/dist/styles/assets/pficon',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/patternfly/assets/fonts',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/patternfly/assets/pficon',
          ),
        ],
        generator: {
          filename: 'assets/[name].[ext]',
        },
      },
      {
        test: /\.svg$/,
        include: (input) => input.indexOf('background-filter.svg') > 1,
        type: 'asset',
      },
      {
        test: /\.svg$/,
        // only process SVG modules with this loader if they live under a 'bgimages' directory
        // this is primarily useful when applying a CSS background using an SVG
        include: (input) => input.indexOf(BG_IMAGES_DIRNAME) > -1,
        type: 'asset/inline',
      },
      {
        test: /\.svg$/i,
        // only process SVG modules with this loader when they don't live under a 'bgimages',
        // 'fonts', or 'pficon' directory, those are handled with other loaders
        include: (input) =>
          input.indexOf(BG_IMAGES_DIRNAME) === -1 &&
          input.indexOf('fonts') === -1 &&
          input.indexOf('background-filter') === -1 &&
          input.indexOf('pficon') === -1,
        type: 'asset/resource',
      },
      {
        test: /\.(jpg|jpeg|png|gif)$/i,
        include: [
          path.resolve(__dirname, 'node_modules/patternfly'),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/patternfly/assets/images',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-styles/css/assets/images',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-core/dist/styles/assets/images',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-core/node_modules/@patternfly/react-styles/css/assets/images',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-table/node_modules/@patternfly/react-styles/css/assets/images',
          ),
          path.resolve(
            __dirname,
            'node_modules/@patternfly/react-inline-edit-extension/node_modules/@patternfly/react-styles/css/assets/images',
          ),
        ],
        type: 'asset',
      },
      {
        test: /\.s[ac]ss$/i,
        use: [
          // Creates `style` nodes from JS strings
          'style-loader',
          // Translates CSS into CommonJS
          'css-loader',
          // Compiles Sass to CSS
          'sass-loader',
        ],
      },
      {
        test: /\.(css)$/,
        use: ['style-loader', 'css-loader'],
      },
    ],
  },
  plugins,
  devtool: isProd ? 'source-map' : 'cheap-source-map',
  optimization: {
    minimize: isProd,
    minimizer: [
      '...', // The '...' string represents the webpack default TerserPlugin instance
      new CSSMinimizerPlugin(),
    ],
  },
  devServer: {
    static: pathTo('dist'),
    port: 1337,
    https: true,
    host: '0.0.0.0',
    allowedHosts: 'all',
    // https://github.com/bripkens/connect-history-api-fallback
    historyApiFallback: {
      // We should really implement the same logic as cloud-services-config
      // and only redirect (/beta)?/bundle/app-name to /index.html
      rewrites: [
        {from: /^\/api/, to: '/404.html'},
        {from: /^(\/beta)?\/config/, to: '/404.html'},
      ],
      verbose: true,
      disableDotRule: true,
    },
    devMiddleware: {
      writeToDisk: true,
    },
    client: {
      overlay: false,
    },
    ...proxy({
      localChrome:
        '/Users/syed/work/redhat/consoledot-integration/insights-chrome/build/',
      useProxy: true,
      env: 'stage-stable',
      port: 1337,
      appUrl: ['/settings/quay', '/beta/settings/quay'],
      publicPath: publicPath,
      proxyVerbose: true,
      onBeforeSetupMiddleware: ({chromePath}) => {
        if (chromePath) {
          const outputPath = pathTo('dist');
          const template = fs.readFileSync(`${chromePath}/index.html`, {
            encoding: 'utf-8',
          });
          if (!fs.existsSync(outputPath)) {
            fs.mkdirSync(outputPath);
          }

          fs.writeFileSync(`${outputPath}/index.html`, template);
        }
      },
      useDevBuild: true,
      routes: {
        '/config/chrome': {
          host: 'http://localhost:8003',
        },
        '/beta/config/chrome': {
          host: 'http://localhost:8003',
        },
        '/api/chrome-service/v1/static/stable/stage/navigation': {
          host: 'http://localhost:8003',
        },
      },
    }),
  },
};