/// <summary>
/// Accept a friendship request sent to an user by another one.
/// </summary>
/// <param name="sender">The user that sends the request.</param>
/// <param name="reciver">The user that receives the request and optionaly accept it.</param>
public void AcceptRequest(User sender, User reciver)
{
ContractUtil.NotNull(sender);
ContractUtil.NotNull(reciver);
var requestRepository = _unitOfWork.FriendshipRequests;
var request = requestRepository.FindSentFrom(sender).FirstOrDefault(friendshipRequest => reciver.Id.Equals(friendshipRequest.Reciver.Id));
// Checking that the request is already sent.
if (Equals(request, null))
{
throw new InvalidOperationException();
}
var notificationRepository = _unitOfWork.Notifications;
var userRepository = _unitOfWork.Users;
var senderInContext = userRepository.FindById(sender.Id); // NOTE: Rethink and Analize that
var reciverInContext = userRepository.FindById(reciver.Id);
var newNotification = _notificationFactory.CreateFriendshipAccepted(sender, reciver);
senderInContext.AddFriend(reciverInContext);
reciverInContext.AddFriend(senderInContext);
notificationRepository.Add(newNotification);
request.State = FriendshipRequestState.Accepted;
_unitOfWork.Commit();
}