const numberInput = document.getElementById("number-input");
const convertBtn = document.getElementById("convert-btn");
const result = document.getElementById("result");
const animationContainer = document.getElementById("animation-container");
const animationData = [
  {
    inputVal: 5,
    marginTop: 300,
    addElDelay: 1000,
    msg: 'decimalToBinary(5) returns "10" + 1 (5 % 2). Then it pops off the stack.',
    showMsgDelay: 15000,
    removeElDelay: 20000,
  },
  {
    inputVal: 2,
    marginTop: -200,
    addElDelay: 1500,
    msg: 'decimalToBinary(2) returns "1" + 0 (2 % 2) and gives that value to the stack below. Then it pops off the stack.',
    showMsgDelay: 10000,
    removeElDelay: 15000,
  },
  {
    inputVal: 1,
    marginTop: -200,
    addElDelay: 2000,
    msg: 'decimalToBinary(1) returns "1" (base case) and gives that value to the stack below. Then it pops off the stack.',
    showMsgDelay: 5000,
    removeElDelay: 10000,
  }
];

const decimalToBinary = (input) => {
  if (input === 0 || input === 1) {
    console.log("input ", input)
    console.log("input === 0 ", input === 0)
    console.log("input === 1 ", input === 1)

    return String(input);
  } else {
    const result = decimalToBinary(Math.floor(input / 2)) + (input % 2);
    console.log("result = >>>>>> ", result)
    return result
  }
};

const showAnimation = () => {
  result.innerText = "Call Stack Animation";

  animationData.forEach((obj) => {
    setTimeout(() => {
      animationContainer.innerHTML += `
        <p id="${obj.inputVal}" style="margin-top: ${obj.marginTop}px;" class="animation-frame">
          decimalToBinary(${obj.inputVal})
        </p>
      `;
    }, obj.addElDelay);

    setTimeout(() => {
      document.getElementById(obj.inputVal).textContent = obj.msg;
    }, obj.showMsgDelay);

    setTimeout(() => {
      document.getElementById(obj.inputVal).remove();
    }, obj.removeElDelay);
  });

  setTimeout(() => {

  }, 20000);
};

const checkUserInput = () => {
  const inputInt = parseInt(numberInput.value);
    console.log("inputInt=>>>>>", inputInt, " isNaN =>>>> ",isNaN(inputInt))
  if (!numberInput.value || isNaN(inputInt)) {
    alert("Please provide a decimal number");
    return;
  }

  if (inputInt === 5) {
    showAnimation();
    return;
  }

  result.textContent = decimalToBinary(inputInt);

  numberInput.value = "";
};

convertBtn.addEventListener("click", checkUserInput);

numberInput.addEventListener("keydown", (e) => {
  if (e.key === "Enter") {
    checkUserInput();
  }
});