public async Task <ConversationDTO> GetConversationOfUsers(string userId1, string userId2)
{
if (!String.IsNullOrWhiteSpace(userId1) && !String.IsNullOrWhiteSpace(userId2))
{
var conversationsWithTwoUsersIds = appDb.Conversations
.Include(u => u.Users)
.Where(u => u.Users.Count == 2)
.ToList();
var user1 = await appDb.Users.Include(u => u.Conversations).Where(u => u.Id == userId1).SingleOrDefaultAsync();
var user2 = await appDb.Users.Include(u => u.Conversations).Where(u => u.Id == userId2).SingleOrDefaultAsync();
ConversationComparer conversationComparer = new ConversationComparer();
Conversation conversation = user1.Conversations?.Intersect(user2.Conversations, conversationComparer).Intersect(conversationsWithTwoUsersIds, conversationComparer).FirstOrDefault();
if (conversation == null)
{
var conversationToAdd = new Conversation();
appDb.Conversations.Add(conversationToAdd);
await appDb.SaveChangesAsync();
appDb.UserConversations.Add(new UserConversation()
{
Conversation = conversationToAdd,
User = user1
});
appDb.UserConversations.Add(new UserConversation()
{
Conversation = conversationToAdd,
User = user2
});
await appDb.SaveChangesAsync();
conversation = conversationToAdd;
}
return(new ConversationDTO
{
Id = conversation.Id
});
}
else
{
return(null);
}
}
public void ConversationOrderTest()
{
foreach (MainWindowModelBase_Accessor model in GetImplementations())
{
model.ConversationManager = CreateConversationManager();
IConversationListItem listItemPrevious = null;
model.DisplayOptions.ConversationSorting = ConversationSorting.AlphabeticalByContact;
foreach (IConversationListItem listItem in model.ConversationListItems)
{
if (listItem.Conversation.GetType() == typeof(AggregateConversation))
{
Assert.IsNull(listItemPrevious);
continue;
}
if (listItemPrevious != null)
{
Assert.IsTrue(ConversationComparer.AlphabeticalByContact(listItemPrevious.Conversation, listItem.Conversation) <= 0);
Assert.AreEqual(listItemPrevious.Conversation, model.PreviousConversation(listItem.Conversation));
Assert.AreEqual(listItem.Conversation, model.NextConversation(listItemPrevious.Conversation));
}
listItemPrevious = listItem;
}
listItemPrevious = null;
model.DisplayOptions.ConversationSorting = ConversationSorting.DescendingByTotalMessages;
foreach (IConversationListItem listItem in model.ConversationListItems)
{
if (listItem.Conversation.GetType() == typeof(AggregateConversation))
{
Assert.IsNull(listItemPrevious);
continue;
}
if (listItemPrevious != null)
{
Assert.IsTrue(ConversationComparer.DescendingByTotalMessages(listItemPrevious.Conversation, listItem.Conversation) <= 0);
Assert.AreEqual(listItemPrevious.Conversation, model.PreviousConversation(listItem.Conversation));
Assert.AreEqual(listItem.Conversation, model.NextConversation(listItemPrevious.Conversation));
}
listItemPrevious = listItem;
}
}
}