var readline = require('readline');

/* CHANGE THIS TO YOUR PARSER */
var parse = require('./').parseScript;
var code = '';


var parseScript = function (text) {
  return parse(text, {ecmaVersion: 6});
};

var rl = readline.createInterface({
  input: process.stdin,
  output: process.stdout
});

rl.setPrompt(">>> ");
rl.prompt();

rl.on('line', function(line) {
  code += line;
  try {
    var tree = parseScript(code);
    console.log(JSON.stringify(tree, null, 2));
    code = '';
    rl.setPrompt('>>> ');
    rl.prompt();
  } catch (e) {
    if (!("index" in e) || e.index < code.length) {
      console.log(e.message);
      code = '';
      rl.setPrompt('>>> ');
      rl.prompt();
    } else {
      rl.setPrompt('... ');
      rl.prompt();
    }
  }

}).on('close', function() {
  console.log('');
  process.exit(0);
}).on('SIGINT', function () {
  code = '';
  console.log('');
  rl.setPrompt('>>> ');
  rl.prompt();
});