function parse(data) {
  if (typeof data !== 'object' || data === null) {
    throw new Error(`Bad Data, expected an object, got: ${data === null ? null : typeof data}`);
  }

  if ((typeof data.title) !== 'string') {
    throw new Error(`Bad Title: ${data.title}`);
  }

  if (!['string', 'number'].includes(typeof data.amount)) {
    throw new Error(`Bad amount: ${data.amount}`);
  }

  if (typeof data.amount === 'string') {
    const value = Number(data.amount.replaceAll(/[^\d]/g, ''));
    data.amount = Number.isNaN(value) ? 0 : value;
  }

  
  return data;
}

function makeTransaction(data, account) {
  return {
    account,
    date: new Date().toLocaleDateString('sv-SE'), // "YYYY-MM-DD"
    payee_name: data.title,
    // Actual considers this an integer representing a decimal value so the last two digits of the integer
    // are placed after the decimal point (unclear why but okay...)
    // It has to be negative or actual will think it's a deposit
    amount: data.amount * -100,
    cleared: true,
  };
}

module.exports = {
  makeTransaction,
  parse
};