Context

Business logic in Sms Assist LLC is around work order, proposal, and invoice. there are lot of if...else becuase of the dozens of status for work orders, which is difficult to maintain.

StatesPattern

Status Pattern For ReactiveWorkOrder, SMSInvoice, AffiliateInvoice, and Proposal in Sms Assist LLC

Pros and Cons for the state pattern

Pros

The single responsibility principle places code related to a particular state in a seperate class.
Open-Close principle. No need to change the existing status and context to add a new state.
Clean the redundent "if ... else..."
reduce the maintenance cost for the life cycle
Lowering the learning curve for new Software Developer

Cons

If there aren't not enough status, the state pattern is not necessary

Design

Problem to resolve

StatusA + ActionB = StatusC(???)

Steps to Use

Install-Package WorkFlowManagementLibrary -Version 1.0.0

Sample Code

[TestMethod]
public void TestMethod_ClientQuoteApproved_Should_Work()
{
    // Arrange
    var context = new ReactiveWOContext(new ReactiveWorkOrderPendingDispatch());

    // Act
    context.State.Dispatch();
    context.State.Schedule();
    context.State.CheckIn();
    context.State.CheckOut(WorkOrderStatus.PendingVendorQuote);
    context.State.AffiliateEntersQuote();
    context.State.ApprovePendingClientQuote();
    context.State.RejectClientQuote();
    context.State.RejectVendorQuote();
    context.State.AffiliateEntersQuote();
    context.State.ApprovePendingClientQuote();
    context.State.ApproveClientQuote();

    // Assert
    Assert.AreEqual(WorkOrderStatus.QuoteApproved, context.State.Status);
}


[TestMethod]
public void TestMethodWholeWorkflowShouldWork()
{
    // Arrange
    var context = new RecurrentWOContext(new RecurrentWorkOrderConcretePendingSchedule());

    // Act
    context.State.Schedule();
    context.State.CheckIn();
    context.State.CheckOut();
    context.State.BatchInvoice();
    context.State.PaytoAffiliate();

    // Assert
    Assert.AreEqual(WorkOrderStatus.PaytoAffiliate, context.State.Status);
}

memoryfraction / WorkFlowManagement