private void ConfigureMachine()
{
machine = new StateMachine <TicketSimulationStateType, TicketSimulationTriggerType>(
() => this.state,
s => this.state = s
);
// this state machine code is modified from https://github.com/dotnet-state-machine/stateless/tree/dev/example/BugTrackerExample
// under the Apache 2.0 license: https://github.com/dotnet-state-machine/stateless/blob/dev/LICENSE
machine.OnTransitionedAsync(LogTransitionAsync <TicketSimulationStateType, TicketSimulationTriggerType>);
machine.Configure(TicketSimulationStateType.None)
.Permit(TicketSimulationTriggerType.Create, TicketSimulationStateType.Created)
;
machine.Configure(TicketSimulationStateType.Created)
.Permit(TicketSimulationTriggerType.Initialize, TicketSimulationStateType.Initialized)
.OnEntryAsync(async() => await OnCreated())
;
initializedTrigger = machine.SetTriggerParameters <Guid, SimulationType>(TicketSimulationTriggerType.Initialize);
machine.Configure(TicketSimulationStateType.Initialized)
.Permit(TicketSimulationTriggerType.Void, TicketSimulationStateType.Voided)
.Permit(TicketSimulationTriggerType.Render, TicketSimulationStateType.Rendered)
.Permit(TicketSimulationTriggerType.Recieve, TicketSimulationStateType.Recieved)
.OnEntryFromAsync(initializedTrigger, (checkoutSessionRefId, simulationType) => OnInitialized(checkoutSessionRefId, simulationType))
;
machine.Configure(TicketSimulationStateType.Voided)
.SubstateOf(TicketSimulationStateType.Initialized)
.Permit(TicketSimulationTriggerType.Kill, TicketSimulationStateType.DeadManWalking)
.OnEntryAsync(async() => await OnVoided())
//.OnExitAsync(() => OnDeadManWalking())
;
}
private async Task OnInitialized(Guid checkoutSessionRefId, SimulationType simulationType)
{
this.stateFlags = this.stateFlags | TicketSimulationStateType.Initialized;
// map the values
this._TicketStatus.CheckoutSessionRefId = checkoutSessionRefId;
//this._TicketStatus.SimulationType = simulationType;
await AddOrUpdateEntityStateAsync();
ActorEventSource.Current.ActorMessage(this, $"Actor [{this.GetActorReference().ActorId.GetGuidId()}] initialized.");
}
private async Task OnVoided()
{
if (!this.stateFlags.HasFlag(TicketSimulationStateType.Voided))
{
this.stateFlags = this.stateFlags | TicketSimulationStateType.Voided;
Debug.Assert(state == machine.State);
this._TicketStatus.VoidedOn = DateTimeOffset.UtcNow;
await AddOrUpdateEntityStateAsync();
}
}
private async Task OnCreated()
{
if (!this.stateFlags.HasFlag(TicketSimulationStateType.Created))
{
// Only way to clean up the Actor Instance so do it first
await RegisterKillMeReminder();
this.stateFlags = this.stateFlags | TicketSimulationStateType.Created;
Debug.Assert(state == machine.State);
this._TicketStatus = new TicketStatus()
{
TicketRefId = this.GetActorReference().ActorId.GetGuidId()
};
await AddOrUpdateEntityStateAsync();
await StateManager.SaveStateAsync();
}
}