private async void SendMessage()
{
if (string.IsNullOrWhiteSpace(MessageToSend) && AttachmentUploads.Count == 0)
{
return;
}
var message = MessageToSend?.Trim();
MessageToSend = null;
var newMessage = new Message(new VkMessage()
{
Body = message, IsOut = true, Date = DateTime.Now
},
ViewModelLocator.Main.CurrentUser);
newMessage.IsNew = true;
try
{
newMessage.IsSent = false;
bool hasPendingUploads = AttachmentUploads.Any(a => a.IsUploading);
bool isChat = Dialog.Message.ChatId != 0;
if (AttachmentUploads.Count > 0)
{
if (hasPendingUploads)
{
await Task.Run(() => _uploadsEvent.Wait()); //ждем завершение загрузок
}
newMessage.MessageContent.Attachments = new List <VkAttachment>();
foreach (var attachment in AttachmentUploads)
{
if (attachment is PhotoAttachmentUpload)
{
var photo = (PhotoAttachmentUpload)attachment;
newMessage.MessageContent.Attachments.Add(new VkPhotoAttachment(photo.VkPhoto));
}
else if (attachment is DocumentAttachmentUpload)
{
var document = (DocumentAttachmentUpload)attachment;
newMessage.MessageContent.Attachments.Add(document.VkDocument);
}
else if (attachment is VideoAttachmentUpload)
{
var video = (VideoAttachmentUpload)attachment;
newMessage.MessageContent.Attachments.Add(new VkVideoAttachment(video.VkVideo));
}
else if (attachment is ForwardMessagesAttachmentUpload)
{
var forwardMessages = (ForwardMessagesAttachmentUpload)attachment;
newMessage.MessageContent.ForwardMessages = forwardMessages.Messages.Select(m => m.MessageContent).ToList();
long dialogId = isChat ? Dialog.Message.ChatId : Dialog.User.Profile.Id;
ForwardMessagesHelper.PendingForwardMessages[dialogId].Clear();
ForwardMessagesHelper.PendingForwardMessages[dialogId] = null;
ForwardMessagesHelper.PendingForwardMessages.Remove(dialogId);
}
}
AttachmentUploads.Clear();
}
Messages.Add(newMessage);
_lastSentMessages.Add(newMessage);
var newMessageId = await ServiceLocator.Vkontakte.Messages.Send(!isChat?Dialog.User.Profile.Id : 0, isChat?Dialog.Message.ChatId : 0, message, newMessage.MessageContent.Attachments, newMessage.MessageContent.ForwardMessages);
newMessage.MessageContent.Id = newMessageId;
newMessage.IsSent = true;
_lastSentMessages.Remove(newMessage);
}
catch (Exception ex)
{
Logger.Error(ex, "Unable to send message");
newMessage.IsFailed = true;
}
}