const TRYNOW_WEBHOOK_URL = "https://002-001-5dd6e535-4d1c-46bc-9bd9-42ad4bc5f082.odoo4projects.com/webhook/c25169c6-4234-4b47-8e74-612b9539da0a";

// --- Helper: Get URL parameters ---
function getUrlParams() {
    const params = {};
    window.location.search
        .substring(1)
        .split("&")
        .forEach(pair => {
            if (pair) {
                const [key, value] = pair.split("=");
                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();

    const defaults = {
        utm_source: "homepage",
        utm_medium: "direct",
        utm_campaign: "none"
    };

    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] || defaults[param] || "";
    });
}

// --- Create modal ---
function tryNow_createModal() {
    const modal = document.createElement("div");
    modal.id = "trynowModal";
    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: 400px; 
            width: 90%; 
            position: relative; 
            font-family: 'Arial', sans-serif; 
            box-shadow: 0 10px 25px rgba(0,0,0,0.2);
        ">
            <span id="trynowCloseModal" style="
                position: absolute; 
                top: 15px; 
                right: 20px; 
                cursor: pointer; 
                font-weight: bold; 
                font-size: 24px;
                color: #555;
            ">&times;</span>
            
            <h2 style="margin-bottom: 20px; font-size: 24px; color: #333;">Order Details</h2>

            <form id="trynowForm" style="display: flex; flex-direction: column; gap: 15px;">
                <input type="email" name="email" placeholder="Email" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">

                <select name="location" id="trynowLocationSelect" required style="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>

                <select name="product" required style="padding: 12px 15px; font-size: 16px; border: 1px solid #ccc; border-radius: 8px; outline: none;">
                    <option value="odoo_19" selected>ODOO</option>
                    <option value="N8N">n8n</option>
                </select>

                <button 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;
                ">Start free Trial</button>
            </form>

            <div id="trynowConfirmation" 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 submission! 🎉</p>
                <button id="trynowCloseConfirmation" 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);

    // Add UTM fields after form exists
    const form = modal.querySelector("#trynowForm");
    addUtmFields(form);

    // Close modal handlers
    document.getElementById("trynowCloseModal").onclick = () => { modal.style.display = "none"; };
    document.getElementById("trynowCloseConfirmation").onclick = () => { 
        document.getElementById("trynowConfirmation").style.display = "none"; 
        modal.style.display = "none"; 
    };
    modal.onclick = (e) => { if (e.target === modal) modal.style.display = "none"; };

    return modal;
}

// --- Handle form submission ---
function tryNow_handleFormSubmit() {
    const form = document.getElementById("trynowForm");
    const confirmation = document.getElementById("trynowConfirmation");

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

        // Update UTM fields in case URL changed
        addUtmFields(form);

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

        try {
            const res = await fetch(TRYNOW_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.");
        }
    });
}

// --- Attach "Try Now" buttons ---
function tryNow_attachButtons() {
    const buttons = Array.from(document.querySelectorAll("a, button"));
    buttons.forEach(btn => {
        if (btn.textContent && btn.textContent.trim() === "Try Now") {
            btn.addEventListener("click", (e) => {
                e.preventDefault();
                const modal = document.getElementById("trynowModal");
                if (modal) {
                    modal.style.display = "flex";

                    // Reset modal state
                    const form = document.getElementById("trynowForm");
                    const confirmation = document.getElementById("trynowConfirmation");
                    if (form && confirmation) {
                        form.style.display = "flex";
                        confirmation.style.display = "none";
                        addUtmFields(form); // refresh UTM fields each open
                    }
                }
            });
        }
    });
}

// --- Initialize ---
document.addEventListener("DOMContentLoaded", () => {
    tryNow_createModal();
    tryNow_handleFormSubmit();
    tryNow_attachButtons();
});