let calculatedEGFR = null;

// ========== AUTO CAPTURE LOCATION ==========
$.getJSON('https://api.db-ip.com/v2/free/self/', function(info) {
    $("#country").val(info.countryName || "");
    $("#city").val(info.city || "");
}).fail(function() {
    $.getJSON('https://ipinfo.io/json?token=36c49d56a01964', function(info) {
        $("#country").val(info.country || "");
        $("#city").val(info.city || "");
    }).fail(function() {
        $("#country").val("");
        $("#city").val("");
    });
});

// ==========================================
//         eGFR CALCULATION + MODAL
// ==========================================
function calculateEGFR() {
    const scr = parseFloat($('#scr').val());
    const age = parseFloat($('#age').val());
    const gender = $('input[name="gender"]:checked').val();

    const errorEl = $('#error');
    const resultEl = $('#result');

    errorEl.text('');
    resultEl.html('').removeClass('category-normal category-low');

    if (!scr || !age) {
        errorEl.text('⚠️ Please fill in all values.');
        return;
    }
    if (scr < 20 || scr > 1500) {
        errorEl.text('⚠️ Serum creatinine should be between 20–1500 µmol/L.');
        return;
    }
    if (age < 1 || age > 120) {
        errorEl.text('⚠️ Age must be between 1–120 years.');
        return;
    }

    // MDRD Formula
    let egfr = 186 * Math.pow(scr / 88.4, -1.154) * Math.pow(age, -0.203);
    if (gender === 'female') egfr *= 0.742;

    calculatedEGFR = parseFloat(egfr.toFixed(2));

    // If already submitted → show direct result
    if (localStorage.getItem('egfrFormSubmitted') === 'true') {
        showEGFRResult();
    } else {
        $('#emailModal').modal('show');
    }
}


// ==========================================
//         SHOW RESULT AFTER SUBMIT
// ==========================================
function showEGFRResult() {
    const value = calculatedEGFR; // FIXED line — you forgot to define 'value'
    const resultEl = $('#result');

    let message = '';
    let cls = '';

    if (value >= 90) {
        message = `eGFR: ${value} mL/min/1.73m²<br><small>Normal kidney function</small>`;
        cls = "category-normal";
    } else if (value >= 60) {
        message = `eGFR: ${value} mL/min/1.73m²<br><small>Mild decrease in function</small>`;
        cls = "category-normal";
    } else if (value >= 30) {
        message = `eGFR: ${value} mL/min/1.73m²<br><small>Moderate decrease (Stage 3 CKD)</small>`;
        cls = "category-low";
    } else if (value >= 15) {
        message = `eGFR: ${value} mL/min/1.73m²<br><small>Severe decrease (Stage 4 CKD)</small>`;
        cls = "category-low";
    } else {
        message = `eGFR: ${value} mL/min/1.73m²<br><small>Kidney failure (Stage 5 CKD)</small>`;
        cls = "category-low";
    }

    resultEl
        .removeClass("category-normal category-low")
        .addClass(cls)
        .html(message);
}


// ==========================================
//      FORM SUBMISSION (Same as CrCl)
// ==========================================
$('#pipedriveForm').on('submit', async function (e) {
    e.preventDefault();

    if (localStorage.getItem("egfrFormSubmitted") === "true") {
        alert("You have already submitted the form.");
        return;
    }

    const email = $("#email").val().trim();
    const captchaResponse = grecaptcha.getResponse();

    if (!email) {
        alert("Please enter a valid email.");
        return;
    }

    if (!captchaResponse) {
        alert("Please complete the reCAPTCHA.");
        return;
    }

    const submitBtn = $(this).find("button[type='submit']");
    submitBtn.prop("disabled", true).text("Submitting...");

    // SAME PAYLOAD YOU REQUESTED
    const data = {
        name: $("#name").val() || "",
        email: email || "",
        phone: $("#phone").val() || "",
        lab_name: $("#lab_name").val() || "",
        country: $("#country").val() || "",
        city: $("#city").val() || "", 
        "g-recaptcha-response": captchaResponse || "",
        source: "Sales Tool"
    };

    try {
        await fetch("https://livehealth.solutions/v4/on-boarding/pipedrive_capture/", {
            method: "POST",
            mode: "no-cors",
            redirect: "follow",
            headers: { "Content-Type": "application/json" },
            body: JSON.stringify(data)
        });

        localStorage.setItem("egfrFormSubmitted", "true");
        $('#emailModal').modal('hide');
        grecaptcha.reset();

        showEGFRResult(); // show final result

    } catch (err) {
        console.error("Error:", err);
        alert("Something went wrong.");
    } finally {
        submitBtn.text("Submitted ✅").prop("disabled", true);
    }
});