Failed experiment with Vite config for test files

import { resolve } from 'path';
import { defineConfig } from 'vite';

// const rewriteImports = {
//   name: 'rewrite-imports',
//   transform(code: string, id: string) {
//     console.log(`Processing ${id} ...`);
//     if (id.endsWith('.js') || id.endsWith('.ts')) {
//       const importRegex = /import (.*) from ['"]chai['"]/g;
//       const replacement = "import $1 from './chai/index.js'";
//       return code.replace(importRegex, replacement);
//     }
//   },
// };

// Helper function to resolve paths relative to the project root.
function test(path: string) {
  return resolve(__dirname, `src/tests/${path}`);
}

function btest(path: string) {
  return resolve(__dirname, `src/browser-tests/${path}`);
}

export default defineConfig({
  // plugins: [rewriteImports],
  base: './',
  publicDir: false,
  optimizeDeps: {
    exclude: [
      "src/*.js"
    ],
  },
  build: {
    target: 'esnext',
    sourcemap: true,
    minify: false,
    outDir: 'dist/scripts/browser-tests',
    // Note the empty lib.entry field.  I found I needed to list the entry points
    // in the input option below, and lib was not
    lib: {
      entry: {
        // 'test-points': test('test-points.ts'),
        // 'test-racer-helper': test('test-racer-helper.ts'),
        // 'test-racers': btest('test-racers.ts'),
      },
      formats: ['es'],
    },

    rollupOptions: {
      // These options are not needed when using multiple entry points
      // in the lib configuration.  Where possible, dependent modules will
      // include a reference to the exported module instead of bundling it
      // into the module itself.

      input: {
        'test-points': test('test-points.ts'),
        'test-racer-helper': test('test-racer-helper.ts'),
        'test-racers': btest('test-racers.ts'),
        // 'test-racetrack': btest('test-racetrack.ts'),
        // 'test-tracks': btest('test-tracks.ts'),
      },
      //   output: {
      //     preserveModules: true,
      //     entryFileNames: '[name].js',
      //   },
      external: [
        'chai',
        '../points.js',
        '../racetrack.js',
        /\.\.\/racers\/.*js/,
      ]
    },
  }
});