public async Task <IResponsiveMessageResponse> GetResponseAsync(ICommandContext context, Messaging.IMessage message, bool allowCancellation = true)
{
ResponsiveMessageInfo info = await SendMessageAndReturnInfoAsync(context, message, allowCancellation);
IResponsiveMessageResponse response = new ResponseMessageResponse(null, true);
if (info != null)
{
// Block until we get a response.
info.Waiter = new ManualResetEvent(false);
info.Waiter.WaitOne();
response = info.Response;
if (response is null)
{
response = new ResponseMessageResponse(null, true);
}
if (response.Canceled)
{
await context.Channel.SendMessageAsync(embed : EmbedUtilities.BuildInfoEmbed("The command has been canceled.").ToDiscordEmbed());
}
}
return(response);
}
public async Task <bool> HandleMessageAsync(IMessage message)
{
ResponsiveMessageInfo info = messages.GetOrDefault(message.Author.Id);
if (info != null && message.Channel.Id == info.Context.Channel.Id)
{
Messaging.IMessage responseMessage = new Message(message.Content)
{
Attachments = message.Attachments.Select(attachment => new Messaging.Attachment()
{
Url = attachment.Url, Filename = attachment.Filename
})
};
info.Response = new ResponseMessageResponse(responseMessage, info.AllowCancellation && message.Content.Equals(CancellationString, StringComparison.OrdinalIgnoreCase));
RemoveMessageInfo(message.Author.Id);
info.Waiter.Set();
return(await Task.FromResult(true));
}
return(await Task.FromResult(false));
}
private async Task <ResponsiveMessageInfo> SendMessageAndReturnInfoAsync(ICommandContext context, Messaging.IMessage message, bool allowCancellation)
{
ResponsiveMessageInfo info = null;
if (message != null)
{
if (allowCancellation)
{
message.Text += $"\nTo cancel, reply with \"{CancellationString}\".";
}
IUserMessage sentMessage = await context.Channel.SendMessageAsync(message?.Text, false, message?.Embed?.ToDiscordEmbed());
if (messages.Count() >= MaxResponsiveMessages)
{
// Remove the oldest message.
ulong oldestMessageUserId = messages
.OrderBy(pair => pair.Value.Context.Message.Timestamp)
.Select(pair => pair.Key)
.First();
RemoveMessageInfo(oldestMessageUserId);
}
info = new ResponsiveMessageInfo {
AllowCancellation = allowCancellation,
Context = context
};
if (messages.TryAdd(context.User.Id, info))
{
return(info);
}
}
return(info);
}