SDK: ISync Flow Steps (Advanced)

using System.Collections.Generic;
using System.Security.Permissions;
using DecisionsFramework.Design.ConfigurationStorage.Attributes;
using DecisionsFramework.Design.Flow;
using DecisionsFramework.Design.Flow.Mapping;
using DecisionsFramework.Design.Properties;
using DecisionsFramework.ServiceLayer;

namespace InvestementSDKConversation
{
    [Writable]
    [AutoRegisterStep("Run Loan Validation", "Investment Customizations")]
    public class ValidateLoanStep : ISyncStep, IDataConsumer
    {
        [WritableValue]
        public bool TestMode { get; set; }

        [WritableValue]
        [PropertyHiddenByValue("TestMode", true, false)]
        [SelectStringEditor("LoanResultValidValues")]
        public string LoanResultForTestMode { get; set; }

        [PropertyHidden]
        public string[] LoanResultValidValues
        {
            get
            {
                return new [] {
                    "Basic", "Premium", "High Risk"   
                } ;

            }
            set { return; }
        }

        public OutcomeScenarioData[] OutcomeScenarios {
            get {

                return new[] {
                new OutcomeScenarioData("Loan Valid"),
                new OutcomeScenarioData("Not Valid", new DataDescription(typeof(string), "Errors", true)), 
            }; 
            }
        }
        
        public ResultData Run(StepStartData data)
        {
            // Get a loan
            Loan thingToProcess = data.Data["Loan to Check"] as Loan;
            List validationMessages = new List();
            
            // Access default values from global settings object
            string serverName = ModuleSettingsAccessor.Instance.ServerName;
            // Server Name is not used and has no value in this class, but it is meant to
            // illustrate how to get access to the settings in your module settings object
            // for use in flow steps for things like credentials and global values.
            
            // Validate Loan
            if (thingToProcess != null && thingToProcess.Amount > 0)
            {
                // Return to the flow engine because this is a sync step.
                return new ResultData("Loan Valid");
            }
            else
            {
                validationMessages.Add("Amount of loan must be positive and greater than 0.");
            }

            if (thingToProcess.Term < 6)
            {
                validationMessages.Add("We don't do short term loans, go to your local bank.");
            }

            return new ResultData("Not Valid", new KeyValuePair("Errors", validationMessages.ToArray()));
        }

        public DataDescription[] InputData
        {
            get { return new[] { new DataDescription(typeof(Loan), "Loan to Check")  }; }
        }
    }
}