public ContactViewModel(User user, ContactViewModel parent)
{
User = user;
IsOnline = user.Online;
Status = user.Online ? "Online" : "Offline";
_parent = parent;
}
public IEnumerable<Message> GetConversation(User user, User contact)
{
var result = getConversation(_db, user, contact).ToList();
result.ForEach(msg => msg.IsMine = (msg.From == user.Name));
result.ForEach(msg => msg.Initiator = (msg.From == user.Name) ? user : contact);
result.ForEach(msg => msg.Contact = (msg.To == user.Name) ? user : contact);
return result;
}
public MockChatViewModel()
{
Contact = new User { Email = "*****@*****.**", Name = "user1", Online = true };
Conversation = new ObservableCollection<Message>();
Conversation.Add(new Message { Id = -1, DateReceived = DateTime.Now.AddMinutes(-2), Value = "Test Message 1", From = "user", To = "user1", IsMine = true, Initiator = new User { Email = "*****@*****.**", Name = "user", Online = true }, Contact = new User { Email = "*****@*****.**", Name = "user1", Online = true } });
Conversation.Add(new Message { Id = -2, DateReceived = DateTime.Now.AddMinutes(-2), Value = "Test Message 2", From = "user1", To = "user", IsMine = false, Contact = new User { Email = "*****@*****.**", Name = "user", Online = true }, Initiator = new User { Email = "*****@*****.**", Name = "user1", Online = true } });
Conversation.Add(new Message { Id = -3, DateReceived = DateTime.Now.AddMinutes(-2), Value = "Test Message 3", From = "user", To = "user1", IsMine = true, Initiator = new User { Email = "*****@*****.**", Name = "user", Online = true }, Contact = new User { Email = "*****@*****.**", Name = "user1", Online = true } });
}
public void LoadConversation(User contact, IEnumerable<Message> conversation)
{
ChatSessionViewModel chatSession;
if(_chatSessions.TryGetValue(contact.Name, out chatSession))
{
var union = conversation.Union(chatSession.Conversation);
chatSession.Conversation = new ObservableCollection<Message>(union);
}
}
public ChatSessionViewModel StartNewSession(User contact, User initiator)
{
var viewModel = new ChatSessionViewModel(contact);
viewModel.Initiator = initiator;
viewModel.SendMessage += OnSendMessage;
viewModel.ChatSessionClosed += OnChatSessionClosed;
_chatSessions.Add(contact.Name, viewModel);
return viewModel;
}
public void AddMessage(Message message, User initiator)
{
ChatSessionViewModel chatSession;
if (!_chatSessions.TryGetValue(message.From, out chatSession))
{
chatSession = StartNewSession(message.Initiator, initiator);
chatSession.OpenChat();
}
chatSession.MessageReceived(message);
}
public void StartNewSession(User user, User initiator)
{
var viewModel = new ChatSessionViewModel(user);
viewModel.Initiator = initiator;
viewModel.SendMessage += OnSendMessage;
var chatView = new ChatViewDialog();
chatView.BindViewModel(viewModel);
chatView.Show();
_chatSessions.Add(viewModel);
}
public void StartNewSession(User contact, User initiator)
{
var viewModel = new ChatSessionViewModel(contact);
viewModel.Initiator = initiator;
viewModel.SendMessage += OnSendMessage;
var chatView = ServiceProvider.Instance.Get<IChatDialog>();
chatView.BindViewModel(viewModel);
chatView.Show();
_chatSessions.Add(viewModel);
}
public void AddMessage(Message message, User initiator)
{
if (_chatSessions.SingleOrDefault(c => c.User.Name == message.From.Name) == null)
{
StartNewSession(message.From, initiator);
_chatSessions.SingleOrDefault(c => c.User.Name == message.From.Name).MessageReceived(message);
}
else
{
_chatSessions.SingleOrDefault(c => c.User.Name == message.From.Name).MessageReceived(message);
}
}
private void OnUserOffline(User user)
{
// Mark user as offline
}
public Task<IEnumerable<Message>> GetConversations(User user)
{
return _chat.Invoke<IEnumerable<Message>>("GetConversations", user);
}
public Task<IEnumerable<Message>> GetConversation(User user, User contact)
{
return _chat.Invoke<IEnumerable<Message>>("GetConversation", user, contact);
}
public IEnumerable<Message> GetConversations(User user)
{
var result = getConversations(_db, user).ToList();
return result;
}
public ContactViewModel(User user)
{
User = user;
IsOnline = user.Online;
Status = user.Online ? "Online" : "Offline";
}
private void OnUserStatusChange(User user)
{
// Mark user as online/offline
if (Contacts != null)
{
var contact = Contacts.FirstOrDefault(u => u.User.Name == user.Name);
if (contact != null)
{
// For the contact list to register that the contact has changed status,
// have to remove and re-add the contact again
Contacts.Remove(contact);
}
Contacts.Add(new ContactViewModel(user, Me));
}
if (Conversations != null)
{
var conversation = Conversations.FirstOrDefault(u => u.User.Name == user.Name);
if (conversation != null)
{
Conversations.Remove(conversation);
Conversations.Add(new ContactViewModel(user, conversation.Message, Me));
}
}
}
public OpenChatEventArgs(User contact)
{
Contact = contact;
}
public ChatSessionEventArgs(User user, Message message)
{
Contact = user;
Message = message;
}
public IEnumerable<Message> GetConversation(User user, User contact)
{
return _db.GetConversation(user, contact);
}
public ChatSessionViewModel(User user)
{
Contact = user;
Conversation = new ObservableCollection<Message>();
}
public IEnumerable<Message> GetConversations(User user)
{
var conversations = _db.GetConversations(user).ToList();
conversations.ForEach(m => m.Contact = GetUser(m.To));
return conversations;
}
private void OnUserOnline(User user)
{
// Mark user as online
}
private void OnUserStatusChange(User user)
{
//Mark user as online/offline
if (Contacts != null)
{
var contact = Contacts.SingleOrDefault(u => u.User.Name == user.Name);
if (contact != null)
{
Contacts.Remove(contact);
Contacts.Add(new ContactViewModel(user, Me));
}
}
}
