public FlowContextTrace(string scopeId, IEnumerable <Difference> diff, UiFlowContextData initial, UiFlowContextData final)
{
ScopeId = scopeId;
Diff = diff;
Initial = initial;
Final = final;
}
public UiFlowContextData CreateNew()
{
var result = new UiFlowContextData();
result.CurrentScreenStep = ScreenName.PreStart;
Attach(result);
return(result);
}
public ScreenName RunNavigation(ScreenEvent eventToTrigger, UiFlowContextData contextData = null)
{
var navigations = new TestFlowCreateStepDataConfigurator(_target);
_target.OnDefiningAdditionalInitialStateTransitions(navigations, contextData ?? _uiFlowContextData ?? new UiFlowContextData());
return(navigations.Execute(eventToTrigger));
}
public async Task <UiFlowContextData> Save(UiFlowContextData contextData)
{
var jsonData = contextData.ToJson(true);
await _store.SetAsync(contextData.FlowHandler, jsonData);
Logger.Debug(() => $"Added {contextData.FlowHandler}");
return(contextData);
}
public async Task <UiFlowContextData> CreateSnapshotOfContext(UiFlowContextData source)
{
if (!Store.ContainsKey(source.FlowHandler))
{
throw new ArgumentException("the context must be attached before creating an snapshot");
}
var ctx = source.CloneAsNew(this);
Attach(ctx);
UpdateClonedSteps();
await UpdateContainer();
UpdateFollowingSnapshot();
return(ctx);
void UpdateClonedSteps()
{
foreach (var stepData in ctx.ViewModels.Values)
{
stepData.FlowHandler = ctx.FlowHandler;
}
}
async Task UpdateContainer()
{
if (ctx.IsInContainer())
{
var container = await Get(ctx.ContainerFlowHandler);
container = await CreateSnapshotOfContext(container);
var currentStepData = container.GetCurrentStepData <UiFlowScreenModel>().Metadata;
if (currentStepData != null)
{
currentStepData.ContainedFlowHandler = ctx.FlowHandler;
}
ctx.ContainerFlowHandler = container.FlowHandler;
}
}
void UpdateFollowingSnapshot()
{
if (!string.IsNullOrWhiteSpace(source.NextFlowHandler))
{
Store.TryRemove(source.NextFlowHandler, out var deleted);
_removed.Add(source.NextFlowHandler);
}
source.NextFlowHandler = ctx.FlowHandler;
}
}
protected override Task <StartScreenModel> OnBuildStartData(UiFlowContextData newContext, StartScreenModel preloadedInputData)
{
if (nameof(FlowInitializer).Equals(preloadedInputData.FailOnStep, StringComparison.InvariantCultureIgnoreCase) &&
preloadedInputData.FailOnEvent == ScreenLifecycleStage.FlowInitialization)
{
throw new Exception($"Triggering failure on {GetType().Name}");
}
return(base.OnBuildStartData(newContext, preloadedInputData));
}
private async Task <TFlowInputData> BuildStartData(UiFlowContextData newContext,
IDictionary <string, object> flowInputData)
{
var expandoObject = flowInputData.ToExpandoObject();
var result = await OnBuildStartData(newContext, expandoObject.ToObjectOfType <TFlowInputData>(false));
return(result);
}
public async Task <UiFlowContextData> GetRootContainerContext(UiFlowContextData ctx)
{
if (ctx.IsInContainer())
{
var containerContext = await Get(ctx.ContainerFlowHandler);
return(await GetRootContainerContext(containerContext));
}
return(ctx);
}
public static UiFlowScreenModel AddStepData(this UiFlowContextData ctx, string flowScreenName, bool setCurrentStepData = false)
{
var userData = new UiFlowScreenModel();
userData.Metadata.FlowHandler = ctx.FlowHandler;
userData.Metadata.FlowScreenName = flowScreenName;
ctx.SetStepData(flowScreenName, userData);
if (setCurrentStepData)
{
ctx.CurrentScreenStep = flowScreenName;
}
return(userData);
}
public async Task <ScreenEvent> InitializeContext(UiFlowContextData newContext,
IDictionary <string, object> flowInputData,
ScreenEvent defaultEventToTrigger)
{
var data = await BuildStartData(newContext, flowInputData);
data.Metadata.FlowHandler = newContext.FlowHandler;
data.Metadata.FlowType = newContext.FlowType;
data.Metadata.FlowScreenName = typeof(EmptyScreenModel).FullName;
newContext.SetCurrentStepData(data);
return(await ResolveInitializationEventToTrigger(defaultEventToTrigger, data));
}
public void CanDeserialize()
{
var ctx = new UiFlowContextData();
ctx.CurrentScreenStep = ScreenName.PreStart;
var flowScreenName = "stepDataA";
var expected = ctx.AddStepData(flowScreenName);
var actual = ctx.ToJson(true).JsonToObject <UiFlowContextData>(true);
var userMetadata = actual.ViewModels[flowScreenName];
Assert.AreEqual(ctx.FlowHandler, userMetadata.FlowHandler);
Assert.IsNotNull(userMetadata.UserData);
Assert.AreEqual(expected, userMetadata.UserData);
}
internal FlowInitializerWithLifecycleAdapter(IUiFlowInitializationStep target)
{
_target = target;
SetRegistry();
_uiFlowContextData = new UiFlowContextData
{
CurrentScreenStep = ScreenName.PreStart
};
void SetRegistry()
{
var items = typeof(TInitializer).Namespace.Split('.').SkipLast(2);
var flowsRootNamespace = string.Join('.', items);
_target.SetPropertyValueFast(nameof(UiFlowScreen.Registry),
new FlowsRegistry(typeof(TInitializer).Assembly, flowsRootNamespace, string.Empty));
}
}
internal FlowScreenWithLifecycleAdapter(TFlowScreen target, IFixture fixture)
{
Fixture = fixture;
_target = target;
SetRegistry();
_uiFlowContextData = new UiFlowContextData
{
CurrentScreenStep = GetStep()
};
void SetRegistry()
{
var items = typeof(TFlowScreen).Namespace.Split('.').SkipLast(2);
var flowsRootNamespace = string.Join('.', items);
_target.SetPropertyValueFast(nameof(UiFlowScreen.Registry),
new FlowsRegistry(typeof(TFlowScreen).Assembly, flowsRootNamespace, string.Empty));
}
}
public override IScreenFlowConfigurator OnDefiningAdditionalInitialStateTransitions(IScreenFlowConfigurator preStartCfg,
UiFlowContextData contextData)
{
return(preStartCfg.OnEventNavigatesTo(ScreenEvent.Start, ContainersFlowScreenName.Number1ContainerScreen));
}
public override IScreenFlowConfigurator OnDefiningAdditionalInitialStateTransitions(IScreenFlowConfigurator preStartCfg,
UiFlowContextData contextData)
{
return(preStartCfg.OnEventNavigatesTo(ScreenEvent.ErrorOccurred, StartFailureFlowScreenName.FailureScreen));
}
protected virtual async Task <TFlowInputData> OnBuildStartData(UiFlowContextData newContext,
TFlowInputData preloadedInputData)
{
return(preloadedInputData);
}
public override IScreenFlowConfigurator OnDefiningAdditionalInitialStateTransitions(IScreenFlowConfigurator preStartCfg,
UiFlowContextData contextData)
{
return(preStartCfg.OnEventNavigatesTo(ScreenEvent.Start, GreenFlowScreenName.Step0Screen
, () => contextData.GetCurrentStepData <StartScreenModel>().SampleParameter != "Finish"
, "normal start"
)
.OnEventNavigatesTo(ScreenEvent.Start, GreenFlowScreenName.FlowCompletedScreen
, () => contextData.GetCurrentStepData <StartScreenModel>().SampleParameter == "Finish"
, "straight to the end"
));
}
private void Attach(UiFlowContextData contextData)
{
contextData.SetRepository(this);
Store.AddOrUpdate(contextData.FlowHandler, a => Task.FromResult(contextData), (a, b) => Task.FromResult(contextData));
}
public override IScreenFlowConfigurator OnDefiningAdditionalInitialStateTransitions(IScreenFlowConfigurator preStartCfg,
UiFlowContextData contextData)
{
return(preStartCfg.OnEventNavigatesTo(ScreenEvent.Start, MetadataTestFlowScreenScreenName.Step0Screen));
}
public override IScreenFlowConfigurator OnDefiningAdditionalInitialStateTransitions(IScreenFlowConfigurator preStartCfg,
UiFlowContextData contextData)
{
return(preStartCfg.OnEventNavigatesTo(ScreenEvent.Start, ModelTesterFlowStep.InputScreen));
}
OnDefiningAdditionalInitialStateTransitions(IScreenFlowConfigurator preStartCfg,
UiFlowContextData contextData)
{
return(preStartCfg);
}
private async Task <TResult> InputOnRedirectToRoot(FlowResultResolverRequest <TResult> input, UiFlowContextData uiFlowContextData)
{
var root = await _contextRepository.GetRootContainerContext(uiFlowContextData);
return(await input.OnRedirectToRoot(root.FlowType, root.FlowHandler));
}