protected override async Task MessageReceived(IDialogContext context, IAwaitable <IMessageActivity> item)
{
var message = await item;
var messageText = await GetLuisQueryTextAsync(context, message);
var tasks = this.services.Select(s => s.QueryAsync(messageText, context.CancellationToken)).ToArray();
var results = await Task.WhenAll(tasks);
var winners = from result in results.Select((value, index) => new { value, index })
let resultWinner = this.BestIntentFrom(result.value)
where resultWinner != null
select new LuisServiceResult(result.value, resultWinner, this.services[result.index]);
var winner = this.BestResultFrom(winners);
if (winner == null)
{
throw new InvalidOperationException("No winning intent selected from Luis results.");
}
var intentName = default(string);
var luisAction = this.actionResolver.ResolveActionFromLuisIntent(winner.Result, out intentName);
if (luisAction != null)
{
var executionContextChain = new List <ActionExecutionContext> {
new ActionExecutionContext(intentName, luisAction)
};
while (LuisActionResolver.IsContextualAction(luisAction))
{
var luisActionDefinition = default(LuisActionBindingAttribute);
if (!LuisActionResolver.CanStartWithNoContextAction(luisAction, out luisActionDefinition))
{
await context.PostAsync($"Cannot start contextual action '{luisActionDefinition.FriendlyName}' without a valid context.");
return;
}
luisAction = LuisActionResolver.BuildContextForContextualAction(luisAction, out intentName);
if (luisAction != null)
{
this.onContextCreation?.Invoke(luisAction, context);
executionContextChain.Insert(0, new ActionExecutionContext(intentName, luisAction));
}
}
var validationResults = default(ICollection <ValidationResult>); //check the validation result
if (!luisAction.IsValid(out validationResults))
{
var childDialog = new LuisActionMissingEntitiesDialog(winner.LuisService, executionContextChain);
context.Call(childDialog, this.LuisActionMissingDialogFinished);
}
else
{
await this.DispatchToLuisActionActivityHandler(context, item, intentName, luisAction);
}
}
}
public virtual async Task StartAsync(IDialogContext context)
{
if (this.executionContextChain != null)
{
var childDialog = new LuisActionMissingEntitiesDialog(this.luisService, this.executionContextChain);
// clean executionContextChain - avoid serialization payload
this.executionContextChain = null;
context.Call(childDialog, this.AfterContextualActionFinished);
return;
}
await this.MessageReceivedAsync(context, null);
}
protected override async Task MessageReceived(IDialogContext context, IAwaitable <IMessageActivity> item)
{
LuisServiceResult winner = await GetWinner(context, item);
if (winner == null)
{
throw new InvalidOperationException("No winning intent selected from Luis results.");
}
ILuisAction luisAction = this.actionResolver.ResolveActionFromLuisIntent(winner.Result, out string intentName);
if (luisAction != null)
{
var executionContextChain = new ActionExecutionContext(intentName, luisAction).ToSingleList();
while (LuisActionResolver.IsContextualAction(luisAction))
{
if (!LuisActionResolver.CanStartWithNoContextAction(luisAction, out LuisActionBindingAttribute luisActionDefinition))
{
await context.PostAsync($"Cannot start contextual action '{luisActionDefinition.FriendlyName}' without a valid context.");
return;
}
luisAction = LuisActionResolver.BuildContextForContextualAction(luisAction, out intentName);
if (luisAction != null)
{
this.onContextCreation?.Invoke(luisAction, context);
executionContextChain.Insert(0, new ActionExecutionContext(intentName, luisAction));
}
}
if (!luisAction.IsValid(out ICollection <ValidationResult> validationResults))
{
var childDialog = new LuisActionMissingEntitiesDialog(winner.LuisService, executionContextChain);
context.Call(childDialog, this.LuisActionMissingDialogFinished);
}
else
{
await this.DispatchToLuisActionActivityHandler(context, item, intentName, luisAction);
}
}
}
protected virtual async Task MessageReceivedAsync(IDialogContext context, IAwaitable <IMessageActivity> item)
{
var nextPromptIdx = 0;
var validationResults = default(ICollection <ValidationResult>);
this.luisAction.IsValid(out validationResults);
if (item != null)
{
var message = await item;
var paramName = validationResults.First().MemberNames.First();
var paramValue = message.Text;
var result = await LuisActionResolver.QueryValueFromLuisAsync(this.luisService, this.luisAction, paramName, paramValue, context.CancellationToken);
if (result.Succeed)
{
nextPromptIdx++;
}
else if (!string.IsNullOrWhiteSpace(result.NewIntent) && result.NewAction != null)
{
var currentActionDefinition = LuisActionResolver.GetActionDefinition(this.luisAction);
var isContextual = false;
if (LuisActionResolver.IsValidContextualAction(result.NewAction, this.luisAction, out isContextual))
{
var executionContextChain = new List <ActionExecutionContext> {
new ActionExecutionContext(result.NewIntent, result.NewAction)
};
var childDialog = new LuisActionMissingEntitiesDialog(this.luisService, executionContextChain);
context.Call(childDialog, this.AfterContextualActionFinished);
return;
}
else if (isContextual & !LuisActionResolver.IsContextualAction(this.luisAction))
{
var newActionDefinition = LuisActionResolver.GetActionDefinition(result.NewAction);
await context.PostAsync($"Cannot execute action '{newActionDefinition.FriendlyName}' in the context of '{currentActionDefinition.FriendlyName}' - continuing with current action");
}
else if (!this.luisAction.GetType().Equals(result.NewAction.GetType()))
{
var newActionDefinition = LuisActionResolver.GetActionDefinition(result.NewAction);
var valid = LuisActionResolver.UpdateIfValidContextualAction(result.NewAction, this.luisAction, out isContextual);
if (!valid && isContextual)
{
await context.PostAsync($"Cannot switch to action '{newActionDefinition.FriendlyName}' from '{currentActionDefinition.FriendlyName}' due to invalid context - continuing with current action");
}
else if (currentActionDefinition.ConfirmOnSwitchingContext)
{
// serialize overrun info
this.overrunData = result;
PromptDialog.Confirm(
context,
this.AfterOverrunCurrentActionSelected,
$"Do you want to discard the current action '{currentActionDefinition.FriendlyName}' and start executing '{newActionDefinition.FriendlyName}' action?");
return;
}
else
{
this.intentName = result.NewIntent;
this.luisAction = result.NewAction;
this.luisAction.IsValid(out validationResults);
}
}
}
}
if (validationResults.Count > nextPromptIdx)
{
await context.PostAsync(validationResults.ElementAt(nextPromptIdx).ErrorMessage);
context.Wait(this.MessageReceivedAsync);
}
else
{
context.Done(new ActionExecutionContext(this.intentName, this.luisAction));
}
}
