public static TOutput ParseSelection <TInput, TOutput>(
ITurnContext context,
RestaurantBookingState state,
List <TInput> list,
Func <TInput, string> keyExpression,
Func <TInput, TOutput> valueExpression,
List <string> ignoreList = null)
{
// if user made a selection by clicking on the card
var message = context.Activity.AsMessageActivity();
var selection = MakeSelectionFromValueObject(list, message.Value, keyExpression);
if (selection != null)
{
return(valueExpression(selection));
}
// if user made a selection by speaking
selection = MakeSelectionFromOrdinalOrIndex(context, state, list);
if (selection != null)
{
return(valueExpression(selection));
}
ignoreList = ignoreList ?? new List <string> {
BotStrings.CallConcierge
};
selection = MatchName.GetMatchUsingSoundex(message.Text, list, ignoreList, keyExpression);
return(selection != null?valueExpression(selection) : default(TOutput));
}
private static TInput MakeSelectionFromOrdinalOrIndex <TInput>(ITurnContext context, RestaurantBookingState state, List <TInput> list)
{
var ordinalEntity = LuisEntityHelper.TryGetValueFromEntity(state.LuisResult?.Entities?[LuisEntities.BuiltInOrdinal]);
if (ordinalEntity != null)
{
var ordinalValue = int.Parse(ordinalEntity);
if (ordinalValue > 0 && ordinalValue <= list.Count)
{
return(list[ordinalValue - 1]);
}
}
else
{
var numberEntity = LuisEntityHelper.TryGetValueFromEntity(state.LuisResult?.Entities?[LuisEntities.BuiltInNumber]);
if (numberEntity != null)
{
var numberValue = int.Parse(numberEntity);
if (numberValue > 0 && numberValue <= list.Count)
{
return(list[numberValue - 1]);
}
}
}
return(default(TInput));
}
