public async Task <ActionResult <IEnumerable <ChatViewModel> > > GetChatMessages([FromRoute] long accountId,
long?afterId = null, long?beforeId = null, int count = 30, CancellationToken cancellationToken = default)
{
var messages = _context.Chats.AsNoTracking().Where(q =>
(q.SenderAccountId == AccountId || q.SenderAccountId == accountId) &&
(q.ReceiverAccountId == AccountId || q.ReceiverAccountId == accountId));
if (afterId != null)
{
messages = messages.Where(q => q.Id > afterId.Value).OrderBy(q => q.Id);
}
if (beforeId != null)
{
messages = messages.Where(q => q.Id < beforeId.Value).OrderByDescending(q => q.Id);
}
messages = messages.Take(count);
var result = await messages.ToListAsync(cancellationToken);
return(OkData(ChatViewModel.MapAll(result)));
}
