public async Task <IActionResult> GetConversationInfo([FromBody] PrivateMessagePaginationContract contract)
{
var input = new PrivateMessagePaginationContract
{
Cursor = contract.Cursor,
UserId = _claimsService.GetUserClaims().Id,
ContactUserId = contract.ContactUserId,
ConversationId = contract.ConversationId,
PageSize = contract.PageSize
};
var conversation = await _messageService.GetPrivateConversationInfo(input);
var response = new ResponseMessage
{
Data = conversation,
IsSuccess = true
};
return(Ok(response));
}
public async Task <PrivateMessagePaginationResponseContract> GetPrivateConversationInfo(PrivateMessagePaginationContract input)
{
var conversation = !input.ConversationId.HasValue ? await GetConversationOfUser(input.UserId, input.ContactUserId) :
await _context.Set <Conversation>().SingleOrDefaultAsync(c => c.Id == input.ConversationId.Value);
if (conversation != null)
{
var getMore = input.ConversationId.HasValue;
Expression <Func <Message, bool> > predicate = m => m.ConversationId == conversation.Id;
if (input.Cursor.HasValue)
{
predicate = m => m.ConversationId == conversation.Id && m.Created < input.Cursor.Value;
}
var messages = await _context.Set <Message>()
.Where(predicate)
.OrderByDescending(m => m.Created)
.Select(x => new MessageDetailsContract
{
Id = x.Id,
Text = x.Text,
AttachmentUrl = x.AttachmentUrl,
SentAt = x.Created,
IsResponse = x.SenderId != input.UserId,
MessageType = (int)x.MessageType,
SentBy = x.SenderId,
Seen = false,
})
.Take(input.PageSize)
.ToListAsync();
var readReceipt = await _context.Set <ReadReceipt>()
.FirstOrDefaultAsync(x => x.ConversationId == conversation.Id);
if (readReceipt != null)
{
messages.ForEach(message =>
{
if (message.Id == readReceipt.MessageId)
{
message.Seen = true;
}
});
}
var conversationResponse = new ConversationContract()
{
Id = conversation.Id,
Title = conversation.Title,
Messages = messages.OrderBy(m => m.SentAt).ToList()
};
DateTime?nextCursor = null;
if (messages.Count >= input.PageSize)
{
nextCursor = messages.Last().SentAt;
}
return(new PrivateMessagePaginationResponseContract
{
NextCursor = nextCursor,
Conversation = conversationResponse
});
}
else
{
var defaultContact = await _context.Set <Contact>()
.SingleOrDefaultAsync(uc => uc.UserId == input.ContactUserId);
var title = defaultContact?.FirstName + ' ' + defaultContact?.LastName;
var newConversation = new Conversation(title, input.UserId, defaultContact.UserId);
await _context.AddAsync(newConversation);
await _context.SaveChangesAsync();
var conversationReponse = new ConversationContract
{
Id = newConversation.Id,
Title = title,
Messages = new List <MessageDetailsContract>()
};
return(new PrivateMessagePaginationResponseContract
{
NextCursor = null,
Conversation = conversationReponse
});
}
}
