added Hybrid Chat modes (#670)

Author: vasanthasaikalluri

backend/src/QA_integration_new.py

@@ -374,7 +374,7 @@ def QA_RAG(graph, model, question, document_names,session_id, mode):
                 "user": "chatbot"
             } 
             return result
-        elif mode == "vector":
+        elif mode == "vector" or mode == "hybrid":
             retrieval_query = VECTOR_SEARCH_QUERY
         else:
             retrieval_query = VECTOR_GRAPH_SEARCH_QUERY.format(no_of_entites=VECTOR_GRAPH_SEARCH_ENTITY_LIMIT)

frontend/src/components/ChatBot/ChatModeToggle.tsx

@@ -31,7 +31,7 @@ export default function ChatModeToggle({
         () =>
           chatModes?.map((m) => {
             return {
-              title: m.includes('+') ? 'Graph + Vector' : capitalize(m),
+              title: capitalize(m),
               onClick: () => {
                 setchatMode(m);
               },

frontend/src/utils/Constants.ts

@@ -59,7 +59,7 @@ export const defaultLLM = llms?.includes('openai-gpt-4o-mini')
 export const chatModes =
   process.env?.CHAT_MODES?.trim() != ''
     ? process.env.CHAT_MODES?.split(',')
-    : ['vector', 'graph', 'graph+vector', 'hybrid'];
+    : ['vector', 'graph', 'graph+vector', 'hybrid','hybrid+graph'];
 export const chunkSize = process.env.CHUNK_SIZE ? parseInt(process.env.CHUNK_SIZE) : 1 * 1024 * 1024;
 export const timeperpage = process.env.TIME_PER_PAGE ? parseInt(process.env.TIME_PER_PAGE) : 50;
 export const timePerByte = 0.2;