script.js

'use strict';

/////////////////////////////////////////////////
/////////////////////////////////////////////////
// BANKIST APP
/////////////////////////////////////////////////
// Data

// DIFFERENT DATA! Contains movement dates, currency and locale

const account1 = {
  owner: 'Jonas Schmedtmann',
  movements: [200, 455.23, -306.5, 25000, -642.21, -133.9, 79.97, 1300],
  interestRate: 1.2, // %
  pin: 1111,

  movementsDates: [
    '2019-11-18T21:31:17.178Z',
    '2019-12-23T07:42:02.383Z',
    '2020-01-28T09:15:04.904Z',
    '2020-04-01T10:17:24.185Z',
    '2020-05-08T14:11:59.604Z',
    '2020-05-27T17:01:17.194Z',
    '2020-07-11T23:36:17.929Z',
    '2022-11-09T10:51:36.790Z',
  ],
  currency: 'EUR',
  locale: 'pt-PT', // de-DE
};

const account2 = {
  owner: 'Jessica Davis',
  movements: [5000, 3400, -150, -790, -3210, -1000, 8500, -30],
  interestRate: 1.5,
  pin: 2222,

  movementsDates: [
    '2019-11-01T13:15:33.035Z',
    '2019-11-30T09:48:16.867Z',
    '2019-12-25T06:04:23.907Z',
    '2020-01-25T14:18:46.235Z',
    '2020-02-05T16:33:06.386Z',
    '2020-04-10T14:43:26.374Z',
    '2020-06-25T18:49:59.371Z',
    '2020-07-26T12:01:20.894Z',
  ],
  currency: 'USD',
  locale: 'en-US',
};

const accounts = [account1, account2];

/////////////////////////////////////////////////
// Elements
const labelWelcome = document.querySelector('.welcome');
const labelDate = document.querySelector('.date');
const labelBalance = document.querySelector('.balance__value');
const labelSumIn = document.querySelector('.summary__value--in');
const labelSumOut = document.querySelector('.summary__value--out');
const labelSumInterest = document.querySelector('.summary__value--interest');
const labelTimer = document.querySelector('.timer');

const containerApp = document.querySelector('.app');
const containerMovements = document.querySelector('.movements');

const btnLogin = document.querySelector('.login__btn');
const btnTransfer = document.querySelector('.form__btn--transfer');
const btnLoan = document.querySelector('.form__btn--loan');
const btnClose = document.querySelector('.form__btn--close');
const btnSort = document.querySelector('.btn--sort');

const inputLoginUsername = document.querySelector('.login__input--user');
const inputLoginPin = document.querySelector('.login__input--pin');
const inputTransferTo = document.querySelector('.form__input--to');
const inputTransferAmount = document.querySelector('.form__input--amount');
const inputLoanAmount = document.querySelector('.form__input--loan-amount');
const inputCloseUsername = document.querySelector('.form__input--user');
const inputClosePin = document.querySelector('.form__input--pin');

const currencies = new Map([
  ['USD', 'United States dollar'],
  ['EUR', 'Euro'],
  ['GBP', 'Pound sterling'],
]);

const movements = [200, 450, -400, 3000, -650, -130, 70, 1300];
/////////////////////////////////////////////////
//functions
const formatMovementDate = function (date, locale) {
  const calcDayPassed = (date1, date2) =>
    Math.round(Math.abs(date2 - date1) / (1000 * 60 * 60 * 24));

  const dayPassed = calcDayPassed(new Date(), date);

  if (dayPassed === 0) return 'Today';
  if (dayPassed === 1) return 'Yesterday';
  if (dayPassed <= 7) return `${dayPassed} days ago`;
  else {
    // const day = `${date.getDate()}`.padStart(2, 0);
    // const month = `${date.getMonth() + 1}`.padStart(2, 0);
    // const year = date.getFullYear();
    // return `${day}/${month}/${year}`;
    return new Intl.DateTimeFormat(locale).format(date);
  }
};

const formatCur = function (value, locale, currency) {
  return new Intl.NumberFormat(locale, {
    style: 'currency',
    currency: currency,
  }).format(value);
};

const displayMovements = function (acc, sort = false) {
  containerMovements.innerHTML = '';

  const movs = sort
    ? acc.movements.slice().sort((a, b) => a - b)
    : acc.movements;

  movs.forEach(function (mov, i) {
    const type = mov > 0 ? 'deposit' : 'withdrawal';

    const date = new Date(acc.movementsDates[i]);
    const displayDate = formatMovementDate(date, acc.locale);

    const formattedMov = formatCur(mov, acc.locale, acc.currency);

    const html = `
    <div class="movements__row">
    <div class="movements__type movements__type--${type}">${i + 1} ${type}</div>
    <div class="movements__date">${displayDate}</div>
    <div class="movements__value"> ${formattedMov}</div>
    </div>
    `;

    containerMovements.insertAdjacentHTML('afterbegin', html);
  });
};

const calcDisplayBalance = function (acc) {
  acc.balance = acc.movements.reduce((sum, mov) => sum + mov, 0);

  // const formattedMov = formatCur(mov, acc.locale, acc.currency);
  labelBalance.textContent = formatCur(acc.balance, acc.locale, acc.currency);
};

const calcDisplaySummary = function (acc) {
  const incomes = acc.movements
    .filter(mov => mov > 0)
    .reduce((acc, mov) => acc + mov, 0);

  labelSumIn.textContent = formatCur(incomes, acc.locale, acc.currency);

  const out = acc.movements
    .filter(mov => mov < 0)
    .reduce((acc, mov) => acc + mov, 0);
  labelSumOut.textContent = formatCur(Math.abs(out), acc.locale, acc.currency);

  const interest = acc.movements
    .filter(mov => mov > 0)
    .map(deposit => (acc.interestRate * deposit) / 100)
    .filter(int => int >= 1)
    .reduce((acc, int) => acc + int, 0);
  labelSumInterest.textContent = formatCur(interest, acc.locale, acc.currency);
};

//---------------------------------------------------------------
const createUsernames = function (accs) {
  accs.forEach(function (acc) {
    acc.username = acc.owner
      .toLowerCase()
      .split(' ')
      .map(name => name[0])
      .join('');
  });
};
createUsernames(accounts);

const updateUI = function (acc) {
  //Display movements
  displayMovements(acc);
  //Display Balance
  calcDisplayBalance(acc);
  //Display Summary'
  calcDisplaySummary(acc);
};

const startLogOutTimer = function () {
  const tick = function () {
    const min = String(Math.trunc(time / 60)).padStart(2, 0);
    const sec = String(time % 60).padStart(2, 0);

    // In each call, print the remaining time to UI
    labelTimer.textContent = `${min}:${sec}`;

    // When 0 seconds, stop timer and log out user
    if (time == 0) {
      clearInterval(timer);
      labelWelcome.textContent = 'Login to get started';
      containerApp.style.opacity = 0;
    }

    //Decrease 1s
    time--;
  };
  //Set time to 5 min
  let time = 300;
  // Call the timer every second
  const timer = setInterval(tick, 1000);
  return timer;
};

//------------------------------------------------------------
//Event Handler
let currentAccount, timer;

//FAKE ALWAYS LOGGED IN
// currentAccount = account1;
// updateUI(currentAccount);
// containerApp.style.opacity = 100;

//day/month/year

btnLogin.addEventListener('click', function (e) {
  //prevent form from submitting
  e.preventDefault();

  currentAccount = accounts.find(
    acc => acc.username === inputLoginUsername.value
  );

  if (currentAccount?.pin === +inputLoginPin.value) {
    //Display UI and message
    labelWelcome.textContent = `Welcome back, ${
      currentAccount.owner.split(' ')[0]
    }`;

    containerApp.style.opacity = 100;
    // Timer
    if (timer) clearInterval(timer);
    timer = startLogOutTimer();
    //update UI
    updateUI(currentAccount);

    //create current date and time
    const now = new Date();
    const options = {
      hour: 'numeric',
      minute: 'numeric',
      day: 'numeric',
      month: 'numeric',
      year: 'numeric',
      // weekday: 'long',
    };
    // const locale = navigator.language;
    // console.log(locale);
    labelDate.textContent = new Intl.DateTimeFormat(
      currentAccount.locale,
      options
    ).format(now);

    // const day = `${now.getDate()}`.padStart(2, 0);
    // const month = `${now.getMonth() + 1}`.padStart(2, 0);
    // const year = now.getFullYear();
    // const hour = `${now.getHours()}`.padStart(2, 0);
    // const min = `${now.getMinutes()}`.padStart(2, 0);
    // labelDate.textContent = `${day}/${month}/${year}, ${hour}:${min}`;

    //clear input field
    inputLoginUsername.value = inputLoginPin.value = '';
    inputLoginUsername.blur();
    inputLoginPin.blur();
  }
});
btnTransfer.addEventListener('click', function (e) {
  e.preventDefault();
  const amount = +inputTransferAmount.value;
  const receiverAcc = accounts.find(
    acc => acc.username === inputTransferTo.value
  );

  if (
    amount > 0 &&
    receiverAcc &&
    currentAccount.balance >= amount &&
    receiverAcc?.username !== currentAccount.username
  ) {
    //Doing the transfer
    currentAccount.movements.push(-amount);
    receiverAcc.movements.push(amount);

    //Add transfer date
    currentAccount.movementsDates.push(new Date().toISOString());
    receiverAcct.movementsDates.push(new Date().toISOString());

    //update UI
    updateUI(currentAccount);

    //clear input field
    inputTransferAmount.value = inputTransferTo.value = '';
    inputTransferTo.blur();
    inputTransferAmount.blur();

    //reset counter
    clearInterval(timer);
    timer = startLogOutTimer();
  }
});

btnLoan.addEventListener('click', function (e) {
  e.preventDefault();
  const amount = Math.floor(+inputLoanAmount.value);

  if (
    amount > 0 &&
    currentAccount.movements.some(mov => mov >= amount * 0.01)
  ) {
    setTimeout(function () {
      //add movement
      currentAccount.movements.push(amount);

      //Add loan date
      currentAccount.movementsDates.push(new Date().toISOString());

      //Update UI
      updateUI(currentAccount);

      //reset counter
      clearInterval(timer);
      timer = startLogOutTimer();
    }, 2500);
  }
  inputLoanAmount.value = '';
});
btnClose.addEventListener('click', function (e) {
  e.preventDefault();
  if (
    inputCloseUsername.value === currentAccount.username &&
    +inputClosePin.value === currentAccount.pin
  ) {
    const index = accounts.findIndex(
      acc => acc.username === currentAccount.username
    );
    console.log(index);
    accounts.splice(index, 1);
    containerApp.style.opacity = 0;
  }
});

let sorted = false;

btnSort.addEventListener('click', function (e) {
  e.preventDefault();
  sorted = !sorted;
  displayMovements(currentAccount, sorted);
});
//---------------------------------------------------------------
// const num = 3884764.23;
// console.log('EG: ', new Intl.NumberFormat('ar-EG').format(num));
// console.log('US: ', new Intl.NumberFormat('en-US').format(num));