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 virtual async Task MessageReceivedAsync(IDialogContext context, IAwaitable <IMessageActivity> item)
{
var nextPromptIdx = 0;
this.luisAction.IsValid(out ICollection <ValidationResult> 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));
}
}
