/**
* Waterfall step to prompt for user's name
*
* @param {DialogContext} Dialog context
* @param {WaterfallStepContext} water fall step context
*/
private async Task<DialogTurnResult> AskForUserNameAsync(
WaterfallStepContext stepContext,
CancellationToken cancellationToken)
{
var context = stepContext.Context;
// Get user profile.
var userProfile = await UserProfileAccessor.GetAsync(context, () => new UserProfile(null, null));
// Get on turn properties.
var onTurnProperty = await OnTurnAccessor.GetAsync(context, () => new OnTurnProperty("None", new List<EntityProperty>()));
// Handle case where user is re-introducing themselves.
// This flow is triggered when we are not in the middle of who-are-you dialog
// and the user says something like 'call me {username}' or 'my name is {username}'.
// Get user name entities from on turn property (from the cafe bot dispatcher LUIS model)
var userNameInOnTurnProperty = (onTurnProperty.Entities ?? new List<EntityProperty>()).Where(item => ((item.EntityName == userNameEntity) || (item.EntityName == userNamePatternAnyEntity)));
if (userNameInOnTurnProperty.Count() > 0)
{
// Get user name from on turn property
var userName = userNameInOnTurnProperty.First().Value as string;
// Capitalize user name
userName = char.ToUpper(userName[0]) + userName.Substring(1);
// Set user name
await UserProfileAccessor.SetAsync(context, new UserProfile(userName));
// End this step so we can greet the user.
return await stepContext.NextAsync(haveUserName);
}
// Prompt user for name if
// we have an invalid or empty user name or
// if the user name was previously set to 'Human'
if (userProfile == null || string.IsNullOrWhiteSpace(userProfile.UserName) || userProfile.UserName.Equals("Human", StringComparison.Ordinal))
{
await context.SendActivityAsync("Hello, I'm the Contoso Cafe Bot.");
// Begin the prompt to ask user their name
var opts = new PromptOptions
{
Prompt = new Activity
{
Type = ActivityTypes.Message,
Text = "What's your name?",
},
};
return await stepContext.PromptAsync(askUserNamePrompt, opts);
}
else
{
// Already have the user name. So just greet them.
await context.SendActivityAsync($"Hello {userProfile.UserName}, Nice to meet you again! I'm the Contoso Cafe Bot.");
// End this dialog. We are skipping the next water fall step deliberately.
return await stepContext.EndDialogAsync();
}
}
public async Task SetUserProfileAsync(UserProfile profile, DialogContext dialogContext
, CancellationToken cancellationToken = default)
{
//Also update the dialog contexts state
await UserProfileAccessor.SetAsync(dialogContext.Context, profile, cancellationToken);
dialogContext.GetState().SetValue("user.UserProfile", profile);
}
private async Task <DialogTurnResult> InitializeStateStepAsync(WaterfallStepContext stepContext, CancellationToken cancellationToken)
{
var state = await UserProfileAccessor.GetAsync(stepContext.Context, () => null);
if (state == null)
{
var reservationDataOpt = stepContext.Options as ReservationData;
if (reservationDataOpt != null)
{
await UserProfileAccessor.SetAsync(stepContext.Context, reservationDataOpt);
}
else
{
await UserProfileAccessor.SetAsync(stepContext.Context, new ReservationData());
}
}
return(await stepContext.NextAsync());
}
