(function() {
    const apikey = 'jessetesting';
    const sessionId = localStorage.getItem("session_id") || (()=>{
        const newSession = Math.random().toString(36).substr(2, 9);
        localStorage.setItem("session_id", newSession);
        return newSession;
    })();

    function sendAnalytics(eventType, eventData = {}) {
        const data = JSON.stringify({
            API: apikey, // API key required for every request
            session_id: sessionId,
            user_id: null, // Replace with actual user ID if available
            page_url: window.location.href,
            referrer: document.referrer,
            screen_width: window.innerWidth,
            screen_height: window.innerHeight,
            event_type: eventType,
            event_data: eventData
        });

        // Use sendBeacon for reliable async tracking (even when closing the page)
        if (navigator.sendBeacon) {
            navigator.sendBeacon("https://webpulse.arctechnologies.ca/analytics.php", data);
        } else {
            // Fallback to XMLHttpRequest for older browsers
            const xhr = new XMLHttpRequest();
            xhr.open("POST", "https://webpulse.arctechnologies.ca/analytics.php", true);
            xhr.setRequestHeader("Content-Type", "application/json");
            xhr.send(data);
        }
    }

    // Track Page Views
    sendAnalytics("page_view");

    // Track Click Events
    document.addEventListener("click", (e) => {
        sendAnalytics("click", { 
            tag: e.target.tagName, 
            id: e.target.id, 
            class: e.target.className 
        });
    });

    // Track Scroll Depth
    let lastScroll = 0;
    window.addEventListener("scroll", () => {
        const scrollDepth = Math.round(window.scrollY / document.body.scrollHeight * 100);
        if (Math.abs(scrollDepth - lastScroll) > 10) {
            sendAnalytics("scroll", { depth: scrollDepth });
            lastScroll = scrollDepth;
        }
    });
})();