public static ChatThreadViewModel FromDb(Chat chatDb, string userId = null, int studentId = 0)
{
ChatThreadViewModel model = new ChatThreadViewModel()
{
Id = chatDb.Id,
Title = chatDb.Title,
AddedAt = chatDb.AddedAt.ToString("dd.MM.yyyy HH:mm:ss")
};
if (!string.IsNullOrEmpty(userId))
{
if (chatDb.SenderUserId == userId)
{
model.Author = chatDb.ReceiverUser != null ? chatDb.ReceiverUser.FirstName + " " + chatDb.ReceiverUser.LastName : chatDb.ReceiverStudent.FirstName + " " + chatDb.ReceiverStudent.LastName;
}
else if (chatDb.ReceiverUserId == userId)
{
model.Author = chatDb.SenderUser != null ? chatDb.SenderUser.FirstName + " " + chatDb.SenderUser.LastName : chatDb.SenderStudent.FirstName + " " + chatDb.SenderStudent.LastName;
}
}
if (studentId != 0)
{
if (chatDb.SenderStudentId == studentId)
{
model.Author = chatDb.ReceiverStudent != null ? chatDb.ReceiverStudent.FirstName + " " + chatDb.ReceiverStudent.LastName : chatDb.ReceiverUser.FirstName + " " + chatDb.ReceiverUser.LastName;
}
else if (chatDb.ReceiverStudentId == studentId)
{
model.Author = chatDb.SenderStudent != null ? chatDb.SenderStudent.FirstName + " " + chatDb.SenderStudent.LastName : chatDb.SenderUser.FirstName + " " + chatDb.SenderUser.LastName;
}
}
return(model);
}
public static ChatThreadsViewModel FromDb(List <Chat> chatsDb, string userId = null, int studentId = 0)
{
ChatThreadsViewModel model = new ChatThreadsViewModel();
model.Threads = new List <ChatThreadViewModel>();
foreach (Chat chatDb in chatsDb)
{
model.Threads.Add(ChatThreadViewModel.FromDb(chatDb, userId, studentId));
}
return(model);
}
public static ChatThreadsViewModel FromDb(List <IGrouping <int, Chat> > threads, string userId = null, int studentId = 0)
{
ChatThreadsViewModel model = new ChatThreadsViewModel();
model.Threads = new List <ChatThreadViewModel>();
foreach (IGrouping <int, Chat> thread in threads)
{
model.Threads.Add(ChatThreadViewModel.FromDb(thread, userId, studentId));
}
model.Threads = model.Threads.OrderBy(t => t.IsRead).ThenByDescending(t => t.AddedAt).ToList();
return(model);
}
public static ChatThreadViewModel FromDb(IGrouping <int, Chat> thread, string userId, int studentId)
{
ChatThreadViewModel model = new ChatThreadViewModel()
{
Id = thread.Last().Id,
Title = thread.Last().Title,
AddedAt = thread.Last().AddedAt.ToString("dd.MM.yyyy HH:mm:ss")
};
if (!string.IsNullOrEmpty(userId))
{
model.IsRead = thread.Any(t => t.ReceiverUserId == userId) ? thread.OrderBy(t => t.AddedAt).Last(t => t.ReceiverUserId == userId).IsRead : true;
if (thread.Last().SenderUserId == userId)
{
model.Author = thread.Last().ReceiverUser != null?thread.Last().ReceiverUser.FirstName + " " + thread.Last().ReceiverUser.LastName : thread.Last().ReceiverStudent.FirstName + " " + thread.Last().ReceiverStudent.LastName;
}
else if (thread.Last().ReceiverUserId == userId)
{
model.Author = thread.Last().SenderUser != null?thread.Last().SenderUser.FirstName + " " + thread.Last().SenderUser.LastName : thread.Last().SenderStudent.FirstName + " " + thread.Last().SenderStudent.LastName;
}
}
if (studentId != 0)
{
model.IsRead = thread.Any(t => t.ReceiverStudentId == studentId) ? thread.OrderBy(t => t.AddedAt).Last(t => t.ReceiverStudentId == studentId).IsRead : true;
if (thread.Last().SenderStudentId == studentId)
{
model.Author = thread.Last().ReceiverStudent != null?thread.Last().ReceiverStudent.FirstName + " " + thread.Last().ReceiverStudent.LastName : thread.Last().ReceiverUser.FirstName + " " + thread.Last().ReceiverUser.LastName;
}
else if (thread.Last().ReceiverStudentId == studentId)
{
model.Author = thread.Last().SenderStudent != null?thread.Last().SenderStudent.FirstName + " " + thread.Last().SenderStudent.LastName : thread.Last().SenderUser.FirstName + " " + thread.Last().SenderUser.LastName;
}
}
return(model);
}