'use strict';

function parseAccount(str) {
  // str will look like: 'KONTO 1010   "Balanserade utgifter"'
  const [, number, ...name] = str.split(/\s+/);

  return {
    number: parseInt(number, 10),
    name: name.join(' ').slice(1, -1),
  };
}

const accountType = {
  T: 1,
  S: 2,
  I: 3,
  K: 4,
};

function parseCompanyName(str) {
  const [, name] = str.split(/\s+/);

  return name.slice(1, -1);
}

// str should be `ORGNR   "556930-1673"`
function parseOrganizationNumber(str) {
  const [, number] = str.split(/\s+/);
  return number.slice(1, -1);
}

function parseYearDates(str) {
  const [, current, start, end] = str.split(/\s+/);

  return {
    start: parseDate(start),
    end: parseDate(end),
    current: current === '0',
  };
}

function parseAccountType(str) {
  const [, number, type] = str.split(/\s+/);

  return {
    number: parseInt(number, 10),
    type: accountType[type],
  };
}

function parseDate(str) {
  const [, year, month, day] = /(\d\d\d\d)(\d\d)(\d\d)/.exec(str);

  return new Date(`${year}-${month}-${day}T00:00:00.000Z`);
}

function parseSRU(str) {
  const [, number, sru] = str.split(/\s+/);

  return {
    number: parseInt(number, 10),
    sru: parseInt(sru, 10),
  };
}

function parseTransaction(str) {
  // str looks like: '   #TRANS     6310 {}      1541.00 20150824 '
  const [, accountNumber,, amount] = str.split(/\s+/);

  return {
    accountNumber: parseInt(accountNumber, 10),
    amount: parseFloat(amount),
  };
}

function parseTicket(str) {
  const [, type, number, date, ...rest] = str.split(/\s+/);
  const dateCreated = rest.pop();
  const title = rest.join(' ');

  return {
    type: parseInt(type, 10),
    number: parseInt(number, 10),
    date: parseDate(date),
    date_created: parseDate(dateCreated),
    title: title.slice(1, -1),
  };
}

module.exports = {
  parseAccountType,
  parseAccount,
  parseCompanyName,
  parseOrganizationNumber,
  parseSRU,
  parseTransaction,
  parseTicket,
  parseYearDates,
};

// console.log(string.split('\n#').length)

// module.exports = function parseLine(line) {
//   line = line.slice(1);

//   if (line.startsWith('KONTO')) {
//     const account = parseAccount(line);
//   } else if (line.startWith('KTYP') {
//     const accountType = parseAccountType(line);
//   }

//   const accounts = [];
//   const tickets = [];

//   string.split(/\n#/g).forEach((str, i) => {
//     if (str.startsWith('KONTO')) {
//       accounts.push(parseAccount(str));
//     } else if (str.startsWith('KTYP')) {
//       const { number, type } = parseAccountType(str);

// // const string = fs.readFileSync('./bitmill2015.se', { encoding: 'UTF8' });
//       const account = accounts.find((account) => account.number === number);

//       account.type = type;
//     } else if (str.startsWith('VER')) {
//       tickets.push(parseTicket(str));
//     }
//   });

//   return {
//     accounts,
//     tickets,
//   };
//};
// console.log(tickets);
// process.exit(0);