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/*
 * Copyright (c) 2024 Kristóf Marussy <kristof@marussy.com>
 *
 * SPDX-License-Identifier: MIT
 */

import type { BrotliOptions } from 'node:zlib';

import type { Plugin } from '@docusaurus/types';
import CompressionPlugin from 'compression-webpack-plugin';

import {
  brotliOptions,
  gzipOptions,
  minRatio,
} from '../../scripts/compressionOptions.mjs';

const test = /\.(js|css|svg|txt)$/;

export default function compressionPlugin(): Plugin<void> {
  return {
    name: 'marussy-compression-plugin',
    configureWebpack: ({ mode }) =>
      mode === 'production'
        ? {
            plugins: [
              new CompressionPlugin({
                test,
                filename: '[path][base].gz',
                compressionOptions: gzipOptions,
                minRatio,
              }),
              new CompressionPlugin<BrotliOptions>({
                test,
                filename: '[path][base].br',
                algorithm: 'brotliCompress',
                compressionOptions: brotliOptions,
                minRatio,
              }),
            ],
          }
        : {},
  };
}