Copy RITM variables to summary

(function executeRule(current, previous /*null when async*/) {

    //part 1, for variables with sys_user reference we need user_name instead of display value
    var answer = '';
    var refArr = [];
    var gr = new GlideRecord('sc_item_option_mtom');
    gr.addQuery('request_item', current.getUniqueValue());
gr.addEncodedQuery('sc_item_option.item_option_new.reference=sys_user^ORsc_item_option.item_option_new.choice_table=sys_user^ORsc_item_option.item_option_new.list_table=sys_user^sc_item_option.valueISNOTEMPTY^ORDERBYsc_item_option.item_option_new.order');
    //only sys_user reference variables which are not empty
    gr.query();
    while(gr.next()){
        refArr.push(gr.sc_item_option.item_option_new.getDisplayValue()); //push variable names for later use in part 2
        var arrayList = gr.sc_item_option.value.split(","); //push comma separated values into an array
        var arrayListLength = arrayList.length;
        var userNames = '';
        var names = '';
        for (var j=0; j<arrayListLength; j++) {
            var user = new GlideRecord('sys_user');
            user.get(arrayList[j]);
            if((j + 1) == (arrayListLength)){ //if there is only 1 element in array we don't need a comma separator
                names += user.name; //get name of user
                userNames += user.user_name; //get username of user
            }
            else{
                names +=  user.name + '; '; //get name of user
                userNames += user.user_name + '; '; //get username of user
            }
        }
        answer += gr.sc_item_option.item_option_new.getDisplayValue() + ' (name) = ' + names + '\n';
        answer += gr.sc_item_option.item_option_new.getDisplayValue() + ' (user id) = ' + userNames + '\n';
    }

    //part 2, get all other variable labels and their display values
    var varLabel;
    var varValue;
    var arrUtil = new ArrayUtil();
    var set = new GlideappVariablePoolQuestionSet();
    set.setRequestID(current.getUniqueValue()); set.load();
    var vs = set.getFlatQuestions();
    for (var i=0; i < vs.size(); i++){
        varLabel = vs.get(i).getLabel(); //get label of variable
        varValue = vs.get(i).getDisplayValue(); //get display value of variable
        if(varValue != '' && varValue != 'false' && varLabel != null && arrUtil.indexOf(refArr, varLabel) < 0){ //value is not empty, false or null and label of variable is not in refArr array to prevent duplicates
            answer +=(varLabel + " = " + varValue + "\n");
        }
    }

    current.u_summary = answer;
    current.update();

})(current, previous);