var i = 0;
var line = new GlideRecord('u_sr_mapping_line');
line.addQuery('u_type', 'includeMap');
line.addQuery('u_value', 'MMSA_Group_Configuration_mapping_v1');
line.queryNoDomain();
while(line.next()){
    var order = parseInt(line.u_order, 10);
    var mappingBlock = line.u_mapping_block.sys_id.toString();

    gs.print('Mapping block for group config found for: ' + line.u_mapping_block.u_name.toString());

    var lineExists = checkIfAlreadyExists(mappingBlock);

    if(!lineExists){
        var newOrder = (order + 1).toString();
        var newLine = new GlideRecord('u_sr_mapping_line');
        newLine.initialize();
        newLine.u_mapping_block = mappingBlock;
        newLine.u_output_parm = 'includeRITMDetails';
        newLine.u_type =  'includeMap';
        newLine.u_value = 'MMSA_includeRITMDetails';
        newLine.u_order = newOrder;
        newLine.u_active = true;
        newLine.insert();

        gs.print('Created new mapping line for: ' + line.u_mapping_block.u_name + ' with order: ' + newOrder + '\n');

    }
    else{
        gs.print('This mapping line already exists for mapping block: ' + line.u_mapping_block.u_name.toString() + '\n');
    }

    i++;
}

gs.print('\n\n' + i + ' Transactions affected by script')


function checkIfAlreadyExists(mappingBlock){
    var gr = new GlideRecord('u_sr_mapping_line');
    gr.addQuery('u_type', 'includeMap');
    gr.addQuery('u_value', 'MMSA_includeRITMDetails');
    gr.addQuery('u_mapping_block', mappingBlock);
    gr.query();
    if(gr.next()){
        return true;
    }
    else{
        return false;
    }
}