/// <summary>
/// accept friendship
/// </summary>
/// <returns></returns>
public async Task Accept()
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace($"accept()");
}
if (Payload == null)
{
throw new InvalidOperationException("no payload");
}
if (Payload.Type != FriendshipType.Receive)
{
throw new InvalidOperationException($"accept() need type to be FriendshipType.Receive, but it got a {Payload.Type}");
}
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace($"accept() to {Payload.ContactId}");
}
await Puppet.FriendshipAccept(Id);
var contact = Contact;
await Policy.Handle <Exception>()
.WaitAndRetryAsync(10, (attempt) => TimeSpan.FromSeconds((1d - new Random().NextDouble()) * Math.Pow(2, attempt)), (exception, attempt) =>
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace($"accept() retry() ready() attempt {attempt}");
}
}).ExecuteAsync(async() =>
{
await contact.Ready();
if (IsReady)
{
if (Logger.IsEnabled(LogLevel.Trace))
{
Logger.LogTrace($"accept() with contact {contact.Name} ready()");
}
return;
}
throw new InvalidOperationException("Friendship.accept() contact.ready() not ready");
}).ContinueWith(task =>
{
if (task.IsFaulted)
{
Logger.LogWarning($"accept() contact {contact} not ready because of {task.Exception?.Message}");
}
});
await contact.Sync();
}
