/// <summary>
/// Standard BotBuilder adapter method to send a message from the bot to the messaging API.
/// </summary>
/// <param name="context">A TurnContext representing the current incoming message and environment.</param>
/// <param name="activities">An array of outgoing activities to be sent back to the messaging API.</param>
/// <param name="cancellationToken">A cancellation token for the task.</param>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
public override async Task <ResourceResponse[]> SendActivitiesAsync(ITurnContext context, Activity[] activities, CancellationToken cancellationToken)
{
var responses = new List <ResourceResponse>();
foreach (var activity in activities)
{
if (activity.Type != ActivityTypes.Message)
{
throw new Exception("Only Activities of type Message are supported for sending.");
}
var message = FacebookHelper.ActivityToFacebook(activity);
if (message.Message.Attachment != null)
{
message.Message.Attachments = null;
message.Message.Text = null;
}
var res = await _facebookClient.SendMessageAsync("/me/messages", message, null, cancellationToken).ConfigureAwait(false);
var response = new ResourceResponse()
{
Id = res,
};
responses.Add(response);
}
return(responses.ToArray());
}
/// <summary>
/// Standard BotBuilder adapter method to send a message from the bot to the messaging API.
/// </summary>
/// <param name="turnContext">A TurnContext representing the current incoming message and environment.</param>
/// <param name="activities">An array of outgoing activities to be sent back to the messaging API.</param>
/// <param name="cancellationToken">A cancellation token for the task.</param>
/// <returns>A <see cref="Task"/> representing the asynchronous operation.</returns>
public override async Task <ResourceResponse[]> SendActivitiesAsync(ITurnContext turnContext, Activity[] activities, CancellationToken cancellationToken)
{
var responses = new List <ResourceResponse>();
foreach (var activity in activities)
{
if (activity.Type != ActivityTypes.Message && activity.Type != ActivityTypes.Event)
{
_logger.LogTrace($"Unsupported Activity Type: '{activity.Type}'. Only Activities of type 'Message' or 'Event' are supported.");
}
else
{
var message = FacebookHelper.ActivityToFacebook(activity);
if (message.Message.Attachment != null)
{
message.Message.Text = null;
}
var res = await _facebookClient.SendMessageAsync("/me/messages", message, null, cancellationToken)
.ConfigureAwait(false);
if (activity.Type == ActivityTypes.Event)
{
if (activity.Name.Equals(HandoverConstants.PassThreadControl, StringComparison.Ordinal))
{
var recipient = (string)activity.Value == "inbox" ? HandoverConstants.PageInboxId : (string)activity.Value;
await _facebookClient.PassThreadControlAsync(recipient, activity.Conversation.Id, HandoverConstants.MetadataPassThreadControl).ConfigureAwait(false);
}
else if (activity.Name.Equals(HandoverConstants.TakeThreadControl, StringComparison.Ordinal))
{
await _facebookClient.TakeThreadControlAsync(activity.Conversation.Id, HandoverConstants.MetadataTakeThreadControl).ConfigureAwait(false);
}
else if (activity.Name.Equals(HandoverConstants.RequestThreadControl, StringComparison.Ordinal))
{
await _facebookClient.RequestThreadControlAsync(activity.Conversation.Id, HandoverConstants.MetadataRequestThreadControl).ConfigureAwait(false);
}
}
var response = new ResourceResponse()
{
Id = res,
};
responses.Add(response);
}
}
return(responses.ToArray());
}
/// <summary>
/// Factory method to create the <see cref="FacebookMessage"/> instance of the <see cref="Activity"/> to be sent to Facebook.
/// </summary>
/// <remarks>
/// This lets an override add a Facebook-supported message tag to an outgoing message.
/// See https://developers.facebook.com/docs/messenger-platform/send-messages/message-tags/.
/// </remarks>
/// <param name="activity">An <see cref="Activity"/> instance to build the message.</param>
/// <returns>A <see cref="FacebookMessage"/> built from the activity instance.</returns>
protected virtual FacebookMessage CreateFacebookMessageFromActivity(Activity activity)
{
return(FacebookHelper.ActivityToFacebook(activity));
}