Coveo distance sort using Javascript framework on static devices with no geolocation data

coveodistancesort.js

Coveo.$$(search).on("buildingQuery",
    function (e, args) {
        var currentLatitude = getCookie("currentlatitude");
        var currentLongitude = getCookie("currentlongitude");
        var latitudeField = '@@' + CoveoForSitecore.Context.fields.toCoveo('latitude');
        var longitudeField = '@@' + CoveoForSitecore.Context.fields.toCoveo('longitude');
        var distanceField = CoveoForSitecore.Context.fields.toCoveo('distance');
        if (currentLatitude != '' && currentLongitude != '') {
            var geoQuery = "$qf(function:'dist(" + latitudeField + "," + longitudeField + "," + currentLatitude + "," + currentLongitude + ")', fieldName: 'distance') ";
            if (args && args.queryBuilder) {
                args.queryBuilder.advancedExpression.add(geoQuery);
        }
    }
});
 
function getCookie(cname) {
    let name = cname + "=";
    let ca = document.cookie.split(';');
    for (let i = 0; i < ca.length; i++) {
        let c = ca[i];
        while (c.charAt(0) == ' ') {
            c = c.substring(1);
        }
        if (c.indexOf(name) == 0) {
            return c.substring(name.length, c.length);
        }
    }
    return "";
}