public void AddFriend(User user)
{
if (user == null)
{
throw new Exception("Can not add non existing user to Friend's");
}
if (UserFriends.Contains(user))
{
throw new Exception($"User {user.Name} with id {user.Id} is alredy on Fiends list");
}
UserFriends.Add(user);
}
public CreateGroupViewModel()
{
InitializeCommands();
foreach (var chatDTO in NetworkManager.Client.GetChats(NetworkManager.CurrentUser))
{
foreach (var chatUserDTO in NetworkManager.Client.GetChatUsers(chatDTO))
{
if (UserFriends.FirstOrDefault((u) => u.User.UserId == chatUserDTO.UserId) == null && chatUserDTO.UserId != NetworkManager.CurrentUser.UserId)
{
UserFriends.Add(new UserModel()
{
User = NetworkManager.Client.GetUser(chatUserDTO.UserId)
});
}
}
}
}
public void AddToFriends(User subscriber)
{
if (Id == subscriber.Id)
{
throw new Exception("You can not add to friend yourself");
}
if (!Subscribers.Any(sub => sub.Subscriber.Id == subscriber.Id))
{
throw new Exception("This user is not your subscriber");
}
if (UserFriends.Any(friend => friend.Friend.Id == subscriber.Id))
{
throw new Exception("This user already your friend");
}
UserFriends.Add(new UserFriend(Id, subscriber.Id));
RemoveFromSubscribers(subscriber.Id);
}