function getUTMParameters() {
    var params = {};
    window.location.search.substring(1).split('&').forEach(function(param) {
        var pair = param.split('=');
        if (pair[0].startsWith('utm_')) {
            params[pair[0]] = decodeURIComponent(pair[1]);
        }
    });
    return params;
}

function setCookie(name, value, minutes) {
    var expires = "";
    if (minutes) {
        var date = new Date();
        date.setTime(date.getTime() + (minutes * 60 * 1000));
        expires = "; expires=" + date.toUTCString();
    }
    document.cookie = name + "=" + (value || "") + expires + "; path=/";
}

var utmParams = getUTMParameters();
for (var param in utmParams) {
    setCookie(param, utmParams[param], 30);
    // Storing each UTM parameter in a cookie for 30 minutes
}

function getCookie(name) {
    var value = "; " + document.cookie;
    var parts = value.split("; " + name + "=");
    if (parts.length == 2)
        return parts.pop().split(";").shift();
}

function appendUTMParametersToForm() {
    var utmParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_content', 'utm_term'];
    var form = document.querySelector('.hs-form-iframe').contentDocument;
    // Adjust this selector to target your form specifically

    if (form) {
        utmParams.forEach(function(param) {
            var value = getCookie(param);
            console.log(value);
            if (value) {
                var formField = form.querySelector(`input[name=${param}]`);
                jQuery(formField).val(value).change();
            }
        });
    }
}

// Run the function after the form has fully loaded to ensure the form is present
window.addEventListener('message', event => {
    if(event.data.eventName === 'onFormReady') {
        console.log('form loaded');
        appendUTMParametersToForm();
    }
});