/// <summary>
/// Start audio video call
/// </summary>
/// <param name="subject"></param>
/// <param name="to"></param>
/// <param name="callbackUrl"></param>
/// <returns></returns>
private async Task <IAudioVideoInvitation> StartAudioVideoAsync(string href, string subject, string to, string callbackContext, string callbackUrl, LoggingContext loggingContext = null)
{
(Parent as Application).GetCallbackUrlAndCallbackContext(ref callbackUrl, ref callbackContext);
var operationId = Guid.NewGuid().ToString();
var tcs = new TaskCompletionSource <IInvitation>();
HandleNewInviteOperationKickedOff(operationId, tcs);
IInvitation invite = null;
var input = new AudioVideoInvitationInput
{
OperationContext = operationId,
To = to,
Subject = subject,
CallbackContext = callbackContext,
CallbackUrl = callbackUrl,
MediaHost = MediaHostType.Remote
};
Uri startAudioVideoUri = UriHelper.CreateAbsoluteUri(this.BaseUri, href);
await this.PostRelatedPlatformResourceAsync(startAudioVideoUri, input, new ResourceJsonMediaTypeFormatter(), loggingContext).ConfigureAwait(false);
try
{
invite = await tcs.Task.TimeoutAfterAsync(WaitForEvents).ConfigureAwait(false);
}
catch (TimeoutException)
{
throw new RemotePlatformServiceException("Timeout to get incoming audioVideo invitation started event from platformservice!");
}
// We are sure that the invite is there now.
var result = invite as AudioVideoInvitation;
if (result == null)
{
throw new RemotePlatformServiceException("Platformservice do not deliver a AudioVideoInvitation resource with operationId " + operationId);
}
return(result);
}
/// <summary>
/// Add AudioVideo to an already estalished conversation.
/// </summary>
/// <param name="loggingContext"><see cref="LoggingContext"/> to use for logging</param>
/// <returns><see cref="AudioVideoInvitation"/> which tracks the outgoing invite.</returns>
public override async Task <IAudioVideoInvitation> EstablishAsync(LoggingContext loggingContext = null)
{
string href = PlatformResource?.AddAudioVideoLink?.Href;
if (string.IsNullOrWhiteSpace(href))
{
throw new CapabilityNotAvailableException("Link to establish AudioVideo is not available.");
}
Logger.Instance.Information("[AudioVideo] Calling AddAudioVideo. LoggingContext: {0}",
loggingContext == null ? string.Empty : loggingContext.ToString());
var conversation = base.Parent as Conversation;
if (conversation == null)
{
Logger.Instance.Error("[AudioVideo] Conversation from AudioVideo base parent is null");
throw new Exception("[AudioVideo] Failed to get Conversation from AudioVideo base parent");
}
var communication = conversation.Parent as Communication;
if (communication == null)
{
Logger.Instance.Error("[AudioVideo] Communication from conversation base parent is null");
throw new Exception("[AudioVideo] Failed to get communication from conversation base parent");
}
string operationId = Guid.NewGuid().ToString();
var tcs = new TaskCompletionSource <IInvitation>();
//Tracking the incoming invitation from communication resource
communication.HandleNewInviteOperationKickedOff(operationId, tcs);
IInvitation invite = null;
var input = new AudioVideoInvitationInput
{
OperationContext = operationId,
MediaHost = MediaHostType.Remote
};
var addAudioVideoUri = UriHelper.CreateAbsoluteUri(this.BaseUri, href);
await this.PostRelatedPlatformResourceAsync(addAudioVideoUri, input, new ResourceJsonMediaTypeFormatter(), loggingContext).ConfigureAwait(false);
try
{
invite = await tcs.Task.TimeoutAfterAsync(WaitForEvents).ConfigureAwait(false);
}
catch (TimeoutException)
{
throw new RemotePlatformServiceException("Timeout to get incoming AudioVideo invitation started event from platformservice!");
}
//We are sure the invite sure be there now.
var result = invite as AudioVideoInvitation;
if (result == null)
{
throw new RemotePlatformServiceException("Platformservice do not deliver a AudioVideoInvitation resource with operationId " + operationId);
}
return(result);
}