const WEBHOOK_URL = "https://002-001-5dd6e535-4d1c-46bc-9bd9-42ad4bc5f082.odoo4projects.com/webhook/c76e6b4e-af2f-4bc3-9875-6460d0ffc8e3";

// Get URL parameters as an object
function getUrlParams() {
    const params = {};
    window.location.search.substring(1).split("&").forEach(pair => {
        const [key, value] = pair.split("=");
        if (key) params[decodeURIComponent(key)] = decodeURIComponent(value || "");
    });
    return params;
}

// Add UTM fields to form
function addUtmFields(form) {
    const utmParams = ["utm_source", "utm_medium", "utm_campaign", "utm_term", "utm_content"];
    const urlParams = getUrlParams();

    utmParams.forEach(param => {
        let input = form.querySelector(`input[name="${param}"]`);
        if (!input) {
            input = document.createElement("input");
            input.type = "hidden";
            input.name = param;
            form.appendChild(input);
        }
        input.value = urlParams[param] || "";
    });
}

function createModal() {
    const modal = document.createElement("div");
    modal.id = "buyNowModal";
    modal.style.position = "fixed";
    modal.style.top = "0";
    modal.style.left = "0";
    modal.style.width = "100%";
    modal.style.height = "100%";
    modal.style.backgroundColor = "rgba(0,0,0,0.6)";
    modal.style.display = "none";
    modal.style.justifyContent = "center";
    modal.style.alignItems = "center";
    modal.style.zIndex = "1000";

    modal.innerHTML = `
        <div style="
            background: #ffffff; 
            padding: 40px 30px; 
            border-radius: 16px; 
            max-width: 500px; 
            width: 90%; 
            position: relative; 
            font-family: 'Arial', sans-serif; 
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        ">
            <span id="closeModal" style="
                position: absolute; 
                top: 15px; 
                right: 20px; 
                cursor: pointer; 
                font-weight: bold; 
                font-size: 24px;
                color: #555;
            ">&times;</span>
            
            <h2 style="margin-bottom: 15px; font-size: 24px; color: #333;">Order Details</h2>
            <p id="productText" style="margin-bottom: 25px; font-weight: 500; color: #555;"></p>

            <form id="buyForm" style="display: flex; flex-direction: column; gap: 15px;">
                
                <!-- Hidden select, shown only if product starts with "_" -->
                <select name="location" id="locationSelect" required style="
                    display: none;
                    padding: 12px 15px; 
                    font-size: 16px; 
                    border: 1px solid #ccc; 
                    border-radius: 8px; 
                    outline: none;
                ">
                    <option value="">Select Location</option>
                    <option value="Boston">Boston</option>
                    <option value="Manchester">Manchester</option>
                </select>

                <input type="text" name="name" placeholder="Name" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">
                <input type="text" name="company" placeholder="Company" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">
                <input type="text" name="country" placeholder="Country" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">
                <input type="text" name="street" placeholder="Street" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">
               <div style="display: flex; gap: 10px;">
                  <input type="text" name="zip" placeholder="ZIP" required style="max-width: 100px; flex: 1 1 0; padding: 12px 10px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px;">
                  <input type="text" name="town" placeholder="Town" required style="flex: 2 1 0; padding: 12px 10px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px;">
                </div>
                
                <input type="email" name="email" placeholder="Email" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">
                
                <input type="hidden" name="product">
                <input type="hidden" name="price">

                <button id="submitBuy" type="submit" style="
                    padding: 14px; 
                    background: #007BFF; 
                    color: #fff; 
                    border: none; 
                    border-radius: 8px; 
                    cursor: pointer; 
                    font-size: 18px; 
                    font-weight: bold;
                    transition: background 0.3s;
                ">Send Order</button>
            </form>

            <div id="confirmation" style="
                display: none;
                margin-top: 20px;
                padding: 20px;
                background-color: #e6ffed;
                color: #056608;
                border-radius: 12px;
                text-align: center;
                font-weight: 500;
            ">
                <p>Thank you for your purchase! 🎉</p>
                <button id="closeConfirmation" style="
                    margin-top: 10px;
                    padding: 10px 20px;
                    background: #007BFF;
                    color: #fff;
                    border: none;
                    border-radius: 8px;
                    cursor: pointer;
                    font-size: 16px;
                    transition: background 0.3s;
                ">Close</button>
            </div>
        </div>
    `;

    document.body.appendChild(modal);

    // Close modal
    document.getElementById("closeModal").onclick = () => { document.getElementById("buyNowModal").style.display = "none"; };
    document.getElementById("closeConfirmation").onclick = () => { 
      document.getElementById("confirmation").style.display = "none"; 
      document.getElementById("buyNowModal").style.display = "none"; 
    };
    modal.onclick = (e) => { if (e.target === modal) modal.style.display = "none"; };

    return modal;
}

function openModal(productHref) {
    const modal = document.getElementById("buyNowModal");
    modal.style.display = "flex";

    // Reset form display for repeated orders
    const form = modal.querySelector("#buyForm");
    const confirmation = modal.querySelector("#confirmation");
    form.style.display = "flex";
    confirmation.style.display = "none";

    // Parse productHref
    let product = "Unknown";
    let price = "0";
    let id = "";

    if (productHref.includes("/")) {
        const parts = productHref.split("/").filter(Boolean);
        id = parts[0] || "";
        price = parts[1] || "0";
        product = parts.slice(2).join("/"); 
        product = decodeURIComponent(product);
    }

    // Show/hide location select if ID starts with "_"
    const locationSelect = document.getElementById("locationSelect");
    if (id.startsWith("_")) {
        locationSelect.style.display = "block";
        locationSelect.setAttribute("required", "true");
    } else {
        locationSelect.style.display = "none";
        locationSelect.removeAttribute("required");
        locationSelect.value = ""; 
    }

    // Set hidden inputs
    form.querySelector('input[name="product"]').value = product;
    form.querySelector('input[name="price"]').value = price;

    // Add or update hidden input for ID
    let idInput = form.querySelector('input[name="id"]');
    if (!idInput) {
        idInput = document.createElement("input");
        idInput.type = "hidden";
        idInput.name = "id";
        form.appendChild(idInput);
    }
    idInput.value = id;

    // Update product text
    modal.querySelector("#productText").textContent = `You will buy ${product} for $${price}.`;

    // Add/update UTM fields
    addUtmFields(form);
}

function handleFormSubmit() {
    const form = document.getElementById("buyForm");
    const confirmation = document.getElementById("confirmation");

    if (!form) {
        console.error("Form not found!");
        return;
    }

    form.addEventListener("submit", async (e) => {
        e.preventDefault();

        // Refresh UTM fields just before submitting
        addUtmFields(form);

        const data = {};
        new FormData(form).forEach((value, key) => (data[key] = value));

        try {
            const res = await fetch(WEBHOOK_URL, {
                method: "POST",
                headers: { "Content-Type": "application/json" },
                body: JSON.stringify(data)
            });

            if (res.ok) {
                form.style.display = "none";
                confirmation.style.display = "block";
                form.reset();
            } else {
                alert("Failed to submit form.");
            }
        } catch (err) {
            console.error(err);
            alert("Error submitting form.");
        }
    });
}

function attachButtons() {
    const buttons = Array.from(document.querySelectorAll("button, a"));
    buttons.forEach(btn => {
        const text = btn.textContent.trim();
        if (text === "Buy Now" || text === "Book Now") {
            btn.addEventListener("click", (e) => {
                e.preventDefault();
                const href = btn.getAttribute("href") || btn.dataset.product || "Unknown/0";
                openModal(href);
            });
        }
    });
}

document.addEventListener("DOMContentLoaded", () => {
    createModal();
    handleFormSubmit();
    attachButtons();
});