// switch:sizes------------------------------------------------------------------------------------;
// let sizeOfDressUA = +prompt(
//   "Lets choose the right size for you. Enter your Ukrainian clothing size",
//   []
// );
// switch (sizeOfDressUA) {
//   case 38:
//     alert("Your international size is XXS");
//     break;
//   case 40:
//     alert("Your international size is XS");
//     break;
//   case 42:
//     alert("Your international size is S");
//     break;
//   case 44:
//     alert("Your international size is M");
//     break;
//   case 46:
//     alert("Your international size is L");
//     break;
//   case 48:
//     alert("Your international size is XL");
//     break;
//   case 50:
//     alert("Your international size is XXL");
//     break;
//   case 52:
//     alert("Your international size is 3XL");
//     break;
//   default:
//     alert("We do not know size of your dress");
// }

// switch:if-------------------------------------------------------------------------------------------;

// let color = prompt("Enter color", "");
// if (color === "red") {
//   document.write("<div style='background-color: red;'>Red</div>");
// } else if (color === "black") {
//   document.write(
//     "<div style='background-color: black; color: white;'>Black</div>"
//   );
// } else if (color === "blue") {
//   document.write("<div style='background-color: blue;'>Blue</div>");
// } else if (color === "green") {
//   document.write("<div style='background-color: green;'>Green</div>");
// } else {
//   document.write(
//     "<div style='background-color: gray;'>I don`t understand</div>"
//   );
// }

// prompt: or--------------------------------------------------------------------------------------------;
// let yearOfBirth =
//   +prompt("Please, type year of your birth", []) ||
//   alert("You did not enter the date of Birth");

// let currentYear = 2022;
// let age = currentYear - yearOfBirth;

// alert(age);
// confirm: or this days----------------------------------------------------------------------------------;

// confirm("Shopping?") || alert("You are crazy");

// confirm: if this days-----------------------------------------------------------------------------------;

// let answer = confirm("Shopping?");

// if (answer === false) {
//   alert("You are crazy");
// } else {
//   alert("Yoohooo");
// }

// triple prompt-------------------------------------------------------------------------------------------;

// let name = prompt("Enter your name", []);
// let surname = prompt("Enter your surname", []);
// let patronymic = prompt("Enter your patronymic", []);

// alert(`${surname}, ${name}, ${patronymic}`);

// default: or-------------------------------------------------------------------------------------------;

// let good_name = prompt("Enter your name", []) || "Ivan";
// let good_surname = prompt("Enter your surname", []) || "Ivanov";
// let good_patronymic = prompt("Enter your patronymic", []) || "Petrovych";

// alert(`${good_surname}, ${good_name}, ${good_patronymic}`);

// default: if-------------------------------------------------------------------------------------------;

// let go_name = prompt("Enter your name", []);
// let go_surname = prompt("Enter your surname", []);
// let go_patronymic = prompt("Enter your patronymic", []);

// if (go_name === null) {
//   go_name = "Ivan";
// } else if (go_surname === null) {
//   go_surname = "Ivanov";
// } else if (go_patronymic === null) {
//   go_surname = "Petrovych";
// }

// alert(`${go_surname}, ${go_name}, ${go_patronymic}`);

// login and password-------------------------------------------------------------------------------------------;

// let user_login = prompt("Enter your login");
// let user_password = prompt("Enter your password");

// if (user_login != "admin" || user_password != "qwerty") {
//   alert("Access denied");
// } else if (user_login === "admin" && user_password === "qwerty") {
//   alert("Access success");
// }

// currency calc-------------------------------------------------------------------------------------------;

// let money = prompt("usd or eur?", []);

// switch (money) {
//   case "usd":
//     let currensy_exchange = 0.027;
//     let uah = prompt("Enter the amount in hryvnias");
//     let amount = uah * currensy_exchange;
//     alert(amount);
//     break;
//   case "eur":
//     let ecurrensy_exchange = 0.025;
//     let u_ah = prompt("Enter the amount in hryvnias");
//     let amo_unt = u_ah * ecurrensy_exchange;
//     alert(amo_unt);
//     break;
// }
// currency calc: improved-------------------------------------------------------------------------------------------;

// let money = prompt("usd or eur?", []);
// money = money.toLowerCase();

// switch (money) {
//   case "usd":
//     let currensy_exchange = 38.4;
//     let uah = prompt("Enter the amount in hryvnias");
//     let amount = uah / currensy_exchange;
//     alert(amount);
//     break;
//   case "eur":
//     let ecurrensy_exchange = 39;
//     let u_ah = prompt("Enter the amount in hryvnias");
//     let amo_unt = u_ah / ecurrensy_exchange;
//     alert(amo_unt);
//     break;
// }

// currency calc: two rates-------------------------------------------------------------------------------------------;

// let money = prompt("usd or eur?", []);
// money = money.toLowerCase();
// let buyOrSale = confirm("You want buy currensy?", []);

// switch (money) {
//   case "usd":
//     let currensy_exchange = buyOrSale === true ? 39.8 : 38.4;
//     let uah = prompt("Enter the amount in hryvnias");
//     let amount = uah / currensy_exchange;
//     alert(amount);
//     break;
//   case "eur":
//     let ecurrensy_exchange = buyOrSale === true ? 40.4 : 39;
//     let u_ah = prompt("Enter the amount in hryvnias");
//     let amo_unt = u_ah / ecurrensy_exchange;
//     alert(amo_unt);
//     break;
// }
// currency calc: if-------------------------------------------------------------------------------------------;

// let money = prompt("usd or eur?", []);
// money = money.toLowerCase();
// let buyOrSale = confirm("You want buy currensy?", []);

// if (money === "usd") {
//   let currensy_exchange = buyOrSale === true ? 39.8 : 38.4;
//   let uah = prompt("Enter the amount in hryvnias");
//   let amount = uah / currensy_exchange;
//   alert(amount);
// } else if (money === "eur") {
//   let ecurrensy_exchange = buyOrSale === true ? 40.4 : 39;
//   let u_ah = prompt("Enter the amount in hryvnias");
//   let amo_unt = u_ah / ecurrensy_exchange;
//   alert(amo_unt);
// } else {
//   alert("Enter a valid currensy");
// }

// scissors-------------------------------------------------------------------------------------------;

// let select = prompt("paper , scissors, stone");
// let items = ["paper", "scissors", "stone"];

// select = select.toLowerCase();
// alert(`You choose a ${select}`);

// select = select.toLowerCase();

// let selectComputer = items[Math.floor(Math.random() * items.length)];

// alert(`Robot choose a ${selectComputer}`);

// if (select === selectComputer) {
//   alert("draw");
// } else if (select === "stone") {
//   if (selectComputer === "scissors") {
//     alert("You are win");
//   } else {
//     alert("You are lose");
//   }
// } else if (select === "paper") {
//   if (selectComputer === "stone") {
//     alert("You are win");
//   } else {
//     alert("You are lose");
//   }
// }
// if (select === "scissors") {
//   if (selectComputer === "stone") {
//     alert("You are lose");
//   } else {
//     alert("You are win");
//   }
// } else "Renew game";

// Задание на синий пояс-------------------------------------------------------------------------------------------;

// let usd = {
//   buyUsd: 38.4,
//   saleUsd: 39.8,
// };

// let eur = {
//   buyEur: 39,
//   saleEur: 40.4,
// };

// let gbp = {
//   buyGbp: 46,
//   saleGbp: 48.5,
// };

// let money = prompt("usd, eur or gbp?", []);
// money = money.toLowerCase();
// let buyOrSale = confirm("You want to buy currensy?", []);

// if (money === "usd") {
//   currency_exchange = buyOrSale === true ? usd.saleUsd : usd.buyUsd;
// } else if (money === "eur") {
//   currency_exchange = buyOrSale === true ? eur.saleEur : eur.buyEur;
// } else if (money === "eur") {
//   currency_exchange = buyOrSale === true ? gbp.saleGbp : gbp.buyGbp;
// } else {
//   alert("We do noy know such a currency");
// }

// let hryvnias = prompt("How much hryvnias do you want to exchange?");

// let amount = hryvnias / currency_exchange;

// alert(`You will get ${amount} ${money}`);

// real data-------------------------------------------------------------------------------------------;
let user_choice = prompt("How many hryvnias you want exchange?", []);

let rates = prompt("You want to buy usd, eur or gbp?", []);

rates = rates.toUpperCase();

getCurrencies();

async function getCurrencies() {
  const response = await fetch("https://open.er-api.com/v6/latest/UAH");
  const data = await response.json();

  if (rates === "USD") {
    amount = data.rates.USD * user_choice;
    alert(`You will get ${amount} ${rates}`);
  } else if (rates === "EUR") {
    amount = data.rates.EUR * user_choice;
    alert(`You will get ${amount} ${rates}`);
  } else if (rates === "GBP") {
    amount = data.rates.GBP * user_choice;
    alert(`You will get ${amount} ${rates}`);
  } else {
    alert("We don`t know such currency");
  }
}

// Дополнительное задание-------------------------------------------------------------------------------------------;

// Задание на черный пояс-------------------------------------------------------------------------------------------;