var path = require('path');
var CopyPlugin = require('copy-webpack-plugin');
const MiniCssExtractPlugin = require('mini-css-extract-plugin');
var webpack = require('webpack');
var fs = require('fs');
var package = require('./package.json');

function allReplace(str, obj, quote = true) {
  for (const x in obj) {
    str = str.replace(new RegExp(x, 'g'), quote ? `"${obj[x]}"` : obj[x]);
  }
  return str;
};

const defines = {
  EXTENSION_NAME: package.name,
  __EXTENSION_NAME: JSON.stringify(package.name),
  EXTENSION_AUTHOR: package.author,
  EXTENSION_DESCRIPTION: package.description,
  EXTENSION_VERSION: package.version,
  __VERSION__: JSON.stringify(package.version),
}

module.exports = [
  // WebExtension
  {
    devtool: "source-map",
    entry: {
      content: './src/content/content.ts',
      background: './src/background/background.ts',
      style: './src/content/style.css'
    },
    module: {
      rules: [
        {
          test: /\.tsx?$/,
          use: 'ts-loader',
          exclude: /node_modules|GM_fetch/,
        },
        {
          test: /\.css$/i,
          use: [
            {
              loader: MiniCssExtractPlugin.loader,
              options: {
                publicPath: '/', // Adjust if needed for relative path resolution
              },
            },
            {
              loader: 'css-loader',
              options: {
                url: true, // Ensures url() in CSS is processed
              },
            },
            {
              loader: 'postcss-loader',
              options: {
                postcssOptions: {
                  plugins: {
                    'postcss-url': {
                      url: (asset) => {
                        // Transform relative URLs to extension-style URLs
                        const relativePath = asset.url.replace(/^\.\.\//, '') // Remove leading ../resources part
                        return `chrome-extension://__MSG_@@extension_id__/${relativePath}`;
                      },
                    },
                  },
                },
              },
            },
          ],
        },
        {
          test: /\.(jpe?g|png|ttf|eot|svg|woff(2)?)(\?[a-z0-9=&.]+)?$/,
          type: 'asset/resource',
          generator: {
            filename: 'resources/[name][ext]',
          },
        },
      ],
    },
    externals: {
      './src/content/GM_fetch': 'commonjs2 null'
    },
    optimization: {
      minimize: true
    },
    output: {
      path: path.resolve(__dirname, "dist/extension"),
      filename: "[name]/[name].js"
    },
    resolve: {
      extensions: [".ts", ".tsx", ".js", ".json"]
    },
    plugins: [
      new webpack.DefinePlugin({ ...defines, __ENV_WEBEXTENSION: true, __ENV_USERSCRIPT: false}),
      new CopyPlugin({ patterns: [
        { from: './src/manifest.json', to: 'manifest.json',
          transform(content, absoluteFrom) {
            return allReplace(content.toString(), defines)
          },
        }
      ]}),
      new CopyPlugin({ patterns: [
        { from: './src/icons', to: 'icons/[file]'},
        { from: './src/resources/*.png', to: 'resources/[name][ext]' },
      ]}),
      new MiniCssExtractPlugin({
        filename: 'lib/style.css'
      }),
    ],
  },
  // Userscript
  {
    entry: {
      content: ['./src/content/content.ts', './src/content/GM_fetch/index.js' ]
    },
    module: {
      rules: [
        {
          test: /\.tsx?$/,
          use: 'ts-loader',
          exclude: /node_modules/,
        },
        {
          test: /\.css$/i,
          use: ['style-loader', 'css-loader']
        },
        {
          test: /\.(jpe?g|png|ttf|eot|svg|woff(2)?)(\?[a-z0-9=&.]+)?$/,
          type: 'asset/inline'
        },
      ],
    },
    optimization: {
      minimize: true,
    },
    devtool: false,
    output: {
      path: path.resolve(__dirname, 'dist/userscript'),
      filename: `tf2wikipricing.user.js`
    },
    resolve: {
      extensions: [".ts", ".tsx", ".js", ".json", ".css"]
    },
    plugins: [
      new webpack.DefinePlugin({ ...defines, __ENV_USERSCRIPT: true, __ENV_WEBEXTENSION: false }),
      new webpack.BannerPlugin({
        raw: true,
        banner: () => {
          const header = fs.readFileSync(path.resolve(__dirname, 'src/userscript_header.js'), 'utf8')
          return allReplace(header, defines, false)
        },
        stage: webpack.Compilation.PROCESS_ASSETS_STAGE_REPORT
      }),
    ],
  }
];