import { readFileSync } from 'fs';

import { Parser, Tokenizer } from '@/compiler';
import * as grammars from '@/grammars';

const grammar = grammars.v1;

const tokenizer = new Tokenizer(grammar);
const parser = new Parser(tokenizer, grammar);

const source = readFileSync(__dirname + '/example.jn', 'utf-8');
const maxLength = Math.max(...source.split('\n').map((line) => line.length));
const padding = Math.floor((maxLength - ' Parsing: '.length) / 2);
try {
  console.log('='.repeat(padding) + ' Parsing: ' + '='.repeat(padding));
  console.log(source);
  console.log('='.repeat(maxLength));
  console.log(JSON.stringify(parser.parse(source), null, 2));
} catch (error) {
  console.error(`Error parsing "${source}":`, error);
}