public HttpResponseMessage SendRequest(
[FromBody] ConnectionRequestSendModel model, [FromUri] string sessionKey)
{
var responseMsg = this.PerformOperationAndHandleExceptions(() =>
{
var sender = this.GetUserBySessionKey(sessionKey);
var receiver = this.db.Users.All().FirstOrDefault(u => u.Id == model.ReceiverId);
if (receiver == null)
{
throw new ArgumentException("Invalid receiverId");
}
if (sender.Id == receiver.Id)
{
throw new ArgumentException("You can't send connection request to yourself");
}
var existingConnection =
sender.Connections.FirstOrDefault(c => c.OtherUserId == receiver.Id);
if (existingConnection != null)
{
throw new ArgumentException("You already have a connection with that user");
}
// Check if user A is sending a connection request to user B for a second time
var existingConnectionRequest = receiver.ConnectionRequests
.FirstOrDefault(cr => cr.SenderId == sender.Id && cr.ReceiverId == receiver.Id);
if (existingConnectionRequest != null)
{
throw new ArgumentException("That user already has a connection request from you");
}
// Check if the user A is trying to send a connection request to user B,
// but user B has already sent a connection request to user A
existingConnectionRequest = sender.ConnectionRequests
.FirstOrDefault(cr => cr.SenderId == receiver.Id && cr.ReceiverId == sender.Id);
if (existingConnectionRequest != null)
{
throw new ArgumentException("You have a connection request from that user");
}
var connectionRequest = new ConnectionRequest()
{
Receiver = receiver,
Sender = sender
};
receiver.ConnectionRequests.Add(connectionRequest);
this.db.Users.Update(receiver);
this.db.SaveChanges();
var response = this.Request.CreateResponse(HttpStatusCode.Created);
return(response);
});
return(responseMsg);
}
public void Send_WhenSessionKeyIsInvalid_ShouldReturnBadRequest()
{
using (new TransactionScope())
{
this.db.Users.Add(firstUser);
this.db.Users.Add(secondUser);
this.db.SaveChanges();
var conRequestModel = new ConnectionRequestSendModel()
{
ReceiverId = this.secondUser.Id
};
var response = this.httpServer.CreatePostRequest(
string.Format("/api/connectionRequests/send?sessionKey={0}", "Invalid session key"),
conRequestModel);
Assert.AreEqual(HttpStatusCode.BadRequest, response.StatusCode);
}
}
public void Send_WhenDataIsValid_ShouldSendConnectionRequest()
{
using (new TransactionScope())
{
this.db.Users.Add(firstUser);
this.db.Users.Add(secondUser);
this.db.SaveChanges();
var conRequestModel = new ConnectionRequestSendModel()
{
ReceiverId = this.secondUser.Id
};
var response = this.httpServer.CreatePostRequest(
string.Format("/api/connectionRequests/send?sessionKey={0}", this.firstUser.SessionKey),
conRequestModel);
Assert.AreEqual(HttpStatusCode.Created, response.StatusCode);
var connectionRequests = this.db.ConnectionRequests
.All()
.Where(cr => cr.ReceiverId == this.secondUser.Id);
Assert.AreEqual(1, connectionRequests.Count());
}
}
