public async Task <IHttpActionResult> CreateConversation(int userID, int friendID)
{
if (!ModelState.IsValid)
{
return(BadRequest(ModelState));
}
var user = await db.Users.FirstOrDefaultAsync((u) => u.UserID == userID);
if (user == null)
{
NotFound();
}
var friend = await db.Users.FirstOrDefaultAsync(u => u.UserID == friendID);
if (friend == null)
{
NotFound();
}
await Task.Run(() => db.CreateAConversation(userID, friendID));
var conversationFullInfo = await Task.Run(() =>
(
db.Participants
.Where(u => u.UserID == userID)
.Where(g => g.Group.GroupType == "CONVERSATION")
.Intersect(
db.Participants
.Where(u => u.UserID == friendID)
.Where(g => g.Group.GroupType == "CONVERSATION"))
).FirstOrDefaultAsync()
);
var conversationID = conversationFullInfo.GroupID;
return(Json <int?>(conversationID));
}