/// <inheritdoc/>
public Task SendMessageAsync(string text, string sender)
{
var message = new ChatMessage {
Sender = sender, Text = text, Time = DateTime.UtcNow
};
message.Id = message.Time.Ticks;
Messages.Add(message);
ObtainMessage?.Invoke(message);
return(Task.CompletedTask);
}
/// <summary>
/// Handels the incomming new <see cref="ChatMessage"/>.
/// </summary>
/// <param name="message">If this <see cref="ChatMessage"/> will be added/updated in the <see cref="messages"/>.
/// If it's new, a <see cref="ObtainMessage"/>-event will be raised.</param>
private void OnReceiveMessage(ChatMessage message)
{
logger.LogInformation("Received the message '{message}' from {sender}", message.Text, message.Sender);
bool isNew = false;
messages.AddOrUpdate(
message.Id,
id =>
{
isNew = true;
return(message);
},
(id, oldValue) => message);
if (isNew)
{
logger.LogDebug("Raising an ObtainMessage event.");
ObtainMessage?.Invoke(message);
}
}