vite.config.ts

import { defineConfig } from 'vite';
import { resolve } from 'path';
import dts from 'vite-plugin-dts';
import { visualizer } from 'rollup-plugin-visualizer';

export default defineConfig({
  plugins: [
    dts({
      insertTypesEntry: true,
      outDir: 'dist/types',
    }),
    // Bundle visualizer - generates stats.html when running build
    visualizer({
      filename: 'dist/stats.html',
      open: false,
      gzipSize: true,
      brotliSize: true,
    }),
  ],
  build: {
    lib: {
      entry: resolve(__dirname, 'src/index.ts'),
      name: 'SpeedReader',
      formats: ['es', 'umd'],
      fileName: (format) => {
        if (format === 'umd') {
          return 'speed-reader.umd.cjs';
        }
        return 'speed-reader.js';
      },
    },
    rollupOptions: {
      external: ['react', 'react-dom'],
      output: {
        globals: {
          react: 'React',
          'react-dom': 'ReactDOM',
        },
      },
    },
    sourcemap: true,
    minify: 'terser',
  },
  resolve: {
    alias: {
      '@': resolve(__dirname, 'src'),
    },
  },
});