/**
 * Palantics main tracking script
 */

// Initialize tracking function
function tE(eventName, additionalParams = {}) {
    // Create tracking data object
    const data = {
        event: eventName,
        url: window.location.href,
        ref: document.referrer,
        ua: navigator.userAgent,
        sw: window.screen.width,
        lang: navigator.language || navigator.userLanguage,
    };
    
    // Add any additional parameters
    Object.assign(data, additionalParams);

    // Helper function to serialize an object into URL parameters
    function serializeObject(obj, prefix) {
        const str = [];
        for (const p in obj) {
            if (obj.hasOwnProperty(p)) {
                const k = prefix ? prefix + "[" + p + "]" : p;
                const v = obj[p];
                if (v !== null && typeof v === "object") {
                    str.push(serializeObject(v, k));
                } else {
                    str.push(encodeURIComponent(k) + "=" + encodeURIComponent(v));
                }
            }
        }
        return str.join("&");
    }

    // Function for sending tracking data
    function sendInfo() {
        try {
            // Get site URL and prepare REST API endpoint URL
            const siteUrl = window.location.origin;
            const restApiEndpoint = `${siteUrl}/wp-json/palantics/v1/sun`;
            
            // Use POST request with data in body and query string
            fetch(restApiEndpoint + '?' + serializeObject(data), {
                method: "POST",
                mode: "no-cors",
                cache: "no-cache",
                credentials: "omit", // Don't send cookies
                headers: {
                    "X-Final-Destination": server, // Pass the final destination
                    "Content-Type": "application/json"
                },
                keepalive: true, // Ensures request completes even if page unloads
            })
            .catch(e => {
                console.error("Tracking error:", e);
                
                // If POST fails, try GET as fallback
                fetch(restApiEndpoint + '?' + serializeObject(data), {
                    method: "GET",
                    mode: "no-cors",
                    cache: "no-cache",
                    credentials: "omit",
                    headers: {
                        "X-Final-Destination": server
                    },
                    keepalive: true,
                }).catch(e2 => {
                    console.error("Fallback tracking error:", e2);
                });
            });
            
            return true;
        } catch (e) {
           console.error("Tracking error:", e);
        }
    }

    return sendInfo();
}

// Page load tracking function
function pL() {
    tE("pageLoad_" + window.location.pathname);
}

// Set up page load tracking
document.addEventListener("DOMContentLoaded", function() {
    try {
        pL();
    } catch (error) {
        console.error("Error in page load tracking:", error);
    }
});