break a big process into separate steps

handle_steps.cfm

<cfscript>

  // declare & set vars
  
  var batch = getBatches(
    filterStruct = {
      only_get_next_incomplete_batch_for_this_week = true
    }
  );
  
  if(!batches.recordcount){
    // all batches run for the week.  nothing to do.
  
  }else{
    var step = getNextStepForBatch(batch);
    /*
    step = {
      name = ''
    }
    */
    var do_include_link_to_file_in_email = getSystemSetting('do_include_link_to_file_in_email');
    var do_upload_file_to_s3 = getSystemSetting('do_upload_file_to_s3');
    var step_results = {
      start_time = new Date(),
      processing_time_ms = 0,
      success = false,
      do_skip_this_step = false
    };

    // business logic

    switch(step.name){

      // gets the data from the db, writes to staging tables for this step
      case "generate_batch":
        generateBatch(batch);
      break;

      // transforms the data from step "generate_batch" to get it ready to write to an excel file
      case "prepare_data_for_excel":
        step_results = prepareDataForExcel(batch);
        logStepResults(step_results);
      break;

      // 
      case "make_excel_file":
        step_results = makeExcelFile(batch);
        logStepResults(step_results);
      break;

      case "upload_excel_file_to_s3":
        if(do_upload_file_to_s3){
          step_results = uploadExcelFileToS3(batch);
        }else{
          step_results.do_skip_this_step = true;
        }
        logStepResults(step_results);
      break;

      case "send_email_notification":
        step_results = sendEmailNotification(
          batch = batch,
          do_include_link_to_file_in_email = do_include_link_to_file_in_email
        );
        logStepResults(step_results);
      break;

      default:
        throw("invalid step.name #step.name");
       break;

    } // /switch
   } // /if(!batches.recordcount)
</cfscript>