rollup.config.js

import typescript from '@rollup/plugin-typescript';
import commonjs from '@rollup/plugin-commonjs';
import resolve from '@rollup/plugin-node-resolve';
import dts from 'rollup-plugin-dts';
import { defineConfig } from 'rollup';
import { readFileSync } from 'fs';
import postcss from 'rollup-plugin-postcss';

const pkg = JSON.parse(readFileSync(new URL('./package.json', import.meta.url), 'utf8'));

const external = [
  'react',
  'react-dom',
  'react/jsx-runtime',
  ...Object.keys(pkg.peerDependencies || {})
];

export default defineConfig([
  {
    input: 'src/index.ts',
    output: [
      {
        file: pkg.main,
        format: 'cjs',
        sourcemap: true,
        exports: 'named',
        globals: {
          react: 'React',
          'react-dom': 'ReactDOM',
          'react/jsx-runtime': 'jsxRuntime'
        }
      },
      {
        file: pkg.module,
        format: 'esm',
        sourcemap: true,
        exports: 'named',
        globals: {
          react: 'React',
          'react-dom': 'ReactDOM',
          'react/jsx-runtime': 'jsxRuntime'
        }
      },
    ],
    plugins: [
      resolve(),
      commonjs(),
      postcss({
        extensions: ['.css'],
        minimize: true,
        modules: {
          generateScopedName: '[name]__[local]___[hash:base64:5]',
          localsConvention: 'camelCase'
        },
        inject: {
          insertAt: 'top'
        },
        extract: false,
        use: ['sass'],
        autoModules: true,
        namedExports: true
      }),
      typescript({ 
        tsconfig: './tsconfig.json',
        exclude: ['**/__tests__/**', '**/*.test.ts', '**/*.test.tsx']
      }),
    ],
    external
  },
  {
    input: 'dist/types/src/index.d.ts',
    output: [{ file: 'dist/index.d.ts', format: 'esm' }],
    plugins: [
      postcss({
        inject: false,
        extract: false
      }),
      dts()
    ],
    external: [...external, /\.css$/]
  },
]);