public override DataTemplate SelectTemplate(object item, DependencyObject container)
{
ConversationMessageViewModel message = (ConversationMessageViewModel)item;
switch (message.Type)
{
case ConversationViewMessageType.Incoming:
return(this.IncomingTemplate);
case ConversationViewMessageType.Outgoing:
return(this.OutgoingTemplate);
}
return(null);
}
public async Task <IActionResult> Post([FromBody] ConversationMessageViewModel value)
{
if (ModelState.IsValid)
{
if (value.ConversationId.IsDefault() || value.ReceiverId.IsDefault())
{
return(BadRequest("Unable to validate payload"));
}
var senderId = User.GetUserId();
var sentMessage = await _conversationDataProvider.SendMessageAsync(senderId, value);
await _messageHandler.SendChatMessageToRecipientAsync(Request.GetAccessToken(), senderId, sentMessage);
return(Ok(sentMessage));
}
return(BadRequest(new { Errors = ModelState.ToErrorCollection() }));
}
public async Task <ConversationMessageViewModel> SendMessageAsync(Guid senderId, ConversationMessageViewModel message)
{
//TODO: Check the instigator has the right to post a message to this conversation
var entity = new ConversationMessage
{
ConversationId = message.ConversationId,
Created = DateTime.Now,
Message = message.Message,
SenderId = senderId,
ReceiverId = message.ReceiverId
};
await Context.AddAsync(entity);
await Context.SaveChangesAsync();
return(new ConversationMessageViewModel
{
Id = entity.Id,
ConversationId = entity.ConversationId,
Message = entity.Message,
ReceiverId = entity.ReceiverId,
Sent = entity.Created,
Seen = entity.Seen
});
}
public async Task SendChatMessageToRecipientAsync(string accessToken, Guid senderId, ConversationMessageViewModel conversationMessage)
{
foreach (var userClient in WebSocketConnectionManager.GetClientByUserId(conversationMessage.ReceiverId))
{
await InvokeClientMethodAsync(userClient.Key, "ChatMessageReceived", new[] { conversationMessage });
}
foreach (var userClient in WebSocketConnectionManager.GetClientByUserId(senderId))
{
await InvokeClientMethodAsync(userClient.Key, "ChatMessageReceived", new[] { conversationMessage });
}
}
