import baseConfig from './rollup.base.config.js';
import resolve from 'rollup-plugin-node-resolve';
import commonjs from 'rollup-plugin-commonjs';
import json from 'rollup-plugin-json';
import replace from 'rollup-plugin-replace';
import uglify from 'uglify-es';

const parser = process.env.parser;

export default Object.assign(baseConfig, {
  entry: 'src/parser-' + parser + '.js',
  dest: 'dist/parser-' + parser + '.js',
  format: 'cjs',
  plugins: [
    parser === 'typescript'
      ? replace({
          'exports.Syntax =': '1,',
          include: 'node_modules/typescript-eslint-parser/parser.js',
        })
      : {},
    json(),
    resolve({ preferBuiltins: true }),
    commonjs(),
    {
      transformBundle(code) {
        const result = uglify.minify(code, {});
        if (result.error) throw result.error;
        return result;
      },
    },
  ],
  external: [
    'fs',
    'buffer',
    'path',
    'module',
    'assert',
    'util',
    'os',
    'crypto',
  ],
  useStrict: parser === 'flow' ? false : true,
});