private StateTransitionResult <TState, TTrigger> executeExitAndEntryActions(ExecutionParameters <T, TTrigger> parameters
, StateTransitionResult <TState, TTrigger> currentResult)
{
if (currentResult.WasTransitioned &&
!(currentResult.StartingState.CompareTo(currentResult.PreviousState) == 0 &&
currentResult.PreviousState.CompareTo(currentResult.CurrentState) == 0))
{
_stateConfigurations.TryGetValue(currentResult.PreviousState, out var previousState);
//OnExit? ...don't execute if moving to substate
if (!IsInState(parameters.Context, currentResult.PreviousState))
{
previousState.ExecuteExitAction(parameters.Context, currentResult);
}
if (_stateConfigurations.TryGetValue(currentResult.CurrentState, out var newState))
{
//OnEntry? ...don't execute if moving to superstate
if (!previousState.IsInState(currentResult.CurrentState))
{
newState.ExecuteEntryAction(parameters.Context, currentResult);
}
//Auto transitions?
var preAutoForwardState = currentResult.CurrentState;
var autoTransitionResult = newState.ExecuteAutoTransition(parameters, currentResult);
if (autoTransitionResult.WasTransitioned)
{
//Merge the results
currentResult.PreviousState = currentResult.CurrentState;
currentResult.CurrentState = autoTransitionResult.CurrentState;
currentResult.LastTransitionName = autoTransitionResult.LastTransitionName;
}
//See if we have more actions from the auto transition
if (currentResult.CurrentState.CompareTo(preAutoForwardState) != 0)
{
currentResult = executeExitAndEntryActions(parameters, currentResult);
}
}
}
//Reentry?
else if (_stateConfigurations.TryGetValue(currentResult.CurrentState, out var reenteredState))
{
reenteredState.ExecuteReentryAction(parameters.Context, currentResult);
}
//Send notifications
var transitionEventArgs = new TransitionEventArgs <T, TState, TTrigger>(parameters, currentResult);
if (!currentResult.WasTransitioned)
{
if (!currentResult.TransitionDefined)
{
OnTriggerNotConfigured?.Invoke(this, transitionEventArgs);
}
OnNoTransition?.Invoke(this, transitionEventArgs);
}
return(currentResult);
}
private async Task <StateTransitionResult <TState, TTrigger> > executeExitAndEntryActionsAsync(ExecutionParameters <T, TTrigger> parameters, StateTransitionResult <TState, TTrigger> currentResult)
{
var currentState = StateAccessor(parameters.Context);
if (currentResult.WasTransitioned && !currentState.Equals(currentResult.StartingState))
{
_stateConfigurations.TryGetValue(currentResult.PreviousState, out var previousState);
//OnExit? ...don't execute if moving to substate
if (!IsInState(parameters.Context, currentResult.PreviousState))
{
await previousState.ExecuteExitActionAsync(parameters, currentResult)
.ConfigureAwait(continueOnCapturedContext: false);
}
if (_stateConfigurations.TryGetValue(currentResult.CurrentState, out var newState))
{
//OnEntry? ...don't execute if moving to superstate
if (!previousState.IsInState(currentResult.CurrentState))
{
await newState.ExecuteEntryActionAsync(parameters, currentResult)
.ConfigureAwait(continueOnCapturedContext: false);
}
//AutoForward?
var preAutoForwardState = currentResult.CurrentState;
var autoTransitionResult = await newState.ExecuteAutoTransitionAsync(parameters, currentResult)
.ConfigureAwait(continueOnCapturedContext: false);
if (autoTransitionResult.WasTransitioned)
{
//Merge the results
currentResult.PreviousState = currentResult.CurrentState;
currentResult.CurrentState = autoTransitionResult.CurrentState;
currentResult.LastTransitionName = autoTransitionResult.LastTransitionName;
}
//See if we have more actions from the auto transition
if (preAutoForwardState.CompareTo(currentResult.CurrentState) != 0)
{
await executeExitAndEntryActionsAsync(parameters, currentResult)
.ConfigureAwait(continueOnCapturedContext: false);
}
}
}
//Reentry?
else if (_stateConfigurations.TryGetValue(currentResult.CurrentState, out var reenteredState))
{
await reenteredState.ExecuteReentryActionAsync(parameters, currentResult)
.ConfigureAwait(continueOnCapturedContext: false);
}
//Send notifications
var transitionEventArgs = new TransitionEventArgs <T, TState, TTrigger>(parameters, currentResult);
if (!currentResult.WasTransitioned)
{
if (!currentResult.TransitionDefined)
{
OnTriggerNotConfigured?.Invoke(this, transitionEventArgs);
}
OnNoTransition?.Invoke(this, transitionEventArgs);
}
return(currentResult);
}