public async Task <JsonResult> ChatAsync([FromBody] ChatRequestBody body, [FromHeader] string sessionId)
{
IRestChatSession currentChatSession = null;
Domain.ChatBot chatBot = await GetChatBotAsync();
Domain.ChatSession chatSession = null;
if (String.IsNullOrEmpty(sessionId))
{
chatSession = await _chatSessionService.Create(new Domain.ChatSession()
{
ChatBotId = chatBot.ChatBotId
});
currentChatSession = new RestChatSession();
}
else
{
if (await _chatSessionService.Exists(session => session.ChatSessionId == Int32.Parse(sessionId)))
{
chatSession = await _chatSessionService.FindBy(session => session.ChatSessionId == Int32.Parse(sessionId));
}
else
{
chatSession = await _chatSessionService.Create(new Domain.ChatSession()
{
ChatBotId = chatBot.ChatBotId
});
}
Dictionary <string, string> sessionData = null;
if (String.IsNullOrEmpty(chatSession.Data))
{
sessionData = new Dictionary <string, string>();
}
else
{
sessionData = JsonConvert.DeserializeObject <Dictionary <string, string> >(chatSession.Data);
}
currentChatSession = new RestChatSession(chatSession.ChatSessionId, sessionData);
}
Tuple <string, object> chatBotResponse = _chatBot.FindAnswer(currentChatSession, body.Message);
string messageResponse = chatBotResponse.Item1;
object responseObject = chatBotResponse.Item2;
await SaveSessionDataAsync(currentChatSession);
sessionId = chatSession.ChatSessionId.ToString();
if (responseObject != null && responseObject.GetType() == typeof(ExerciseResponse))
{
return(Json(new { sessionId = sessionId, chatbotResponse = messageResponse, exercise = responseObject }));
}
else
{
return(Json(new { sessionId = sessionId, chatbotResponse = messageResponse }));
}
}
private async Task SaveSessionDataAsync(IRestChatSession session)
{
if (await _chatSessionService.Exists(s => s.ChatSessionId == session.Id))
{
Domain.ChatSession dbChatSession = await _chatSessionService.FindBy(s => s.ChatSessionId == session.Id);
dbChatSession.Data = JsonConvert.SerializeObject(session.SessionStorage.Values);
await _chatSessionService.Update(dbChatSession);
}
}
