/// <summary>
/// Every Conversation turn for our EchoBot will call this method. In here
/// the bot checks the Activty type to verify it's a message, bumps the
/// turn conversation 'Turn' count, and then echoes the users typing
/// back to them.
/// </summary>
/// <param name="context">Turn scoped context containing all the data needed
/// for processing this conversation turn. </param>
public async Task OnTurn(ITurnContext context)
{
// This bot is only handling Messages
if (context.Activity.Type == ActivityTypes.Message)
{
// Get the conversation state from the turn context
state = context.GetConversationState <EchoState>();
// Bump the turn count.
state.TurnCount++;
// Detect user language for this message
var userLanguageCandidates = await TranslationService.DetectAsync(context.Activity.Text, configuration["TranslationAPI"]);
string userInputGerman = context.Activity.Text;
// If the language of the user input could be detected and if it not English, set the native language
if (userLanguageCandidates[0] != null && !userLanguageCandidates[0].language.Equals("en"))
{
state.UserNativeLanguage = userLanguageCandidates[0].language;
var translationCandidates = await TranslationService.TranslateAsync(context.Activity.Text, "en", configuration["TranslationAPI"]);
if (translationCandidates[0].translations[0] != null)
{
await context.SendActivity(await translateToNativeLanguageAsync($"This was turn {state.TurnCount}: You sent ") + $"'{context.Activity.Text}'");
}
}
else
{
// Echo back to the user whatever they typed.
await context.SendActivity($"This was turn {state.TurnCount}: You sent '{context.Activity.Text}'");
}
}
}