feat: performance optimisation

fixes partially #9 and #16

src/App.tsx

@@ -6,38 +6,30 @@ import Menu from './components/Menu';
 import ConfigMenu from './components/ConfigMenu';
 
 import useSaveToLocalStorage from '@hooks/useSaveToLocalStorage';
-import useUpdateCharts from '@hooks/useUpdateChats';
 import useInitialiseNewChat from '@hooks/useInitialiseNewChat';
 
 import { ChatInterface } from '@type/chat';
 
 function App() {
   useSaveToLocalStorage();
-  useUpdateCharts();
   const initialiseNewChat = useInitialiseNewChat();
 
-  const [setChats, setMessages, setCurrentChatIndex] = useStore((state) => [
+  const setChats = useStore((state) => state.setChats);
-    state.setChats,
+  const setCurrentChatIndex = useStore((state) => state.setCurrentChatIndex);
-    state.setMessages,
-    state.setCurrentChatIndex,
-  ]);
 
   useEffect(() => {
-    // localStorage.removeItem('chats');
     const storedChats = localStorage.getItem('chats');
     if (storedChats) {
       try {
         const chats: ChatInterface[] = JSON.parse(storedChats);
         if (chats.length > 0) {
           setChats(chats);
-          setMessages(chats[0].messages);
           setCurrentChatIndex(0);
         } else {
           initialiseNewChat();
         }
       } catch (e: unknown) {
         setChats([]);
-        setMessages([]);
         setCurrentChatIndex(-1);
         console.log(e);
       }

src/components/Chat/ChatContent/ChatContent.tsx

@@ -1,4 +1,4 @@
-import React, { createRef, useState } from 'react';
+import React from 'react';
 import ScrollToBottom from 'react-scroll-to-bottom';
 import useStore from '@store/store';
 
@@ -11,11 +11,15 @@ import CrossIcon from '@icon/CrossIcon';
 import useSubmit from '@hooks/useSubmit';
 
 const ChatContent = () => {
-  const [messages, inputRole, setError] = useStore((state) => [
+  const inputRole = useStore((state) => state.inputRole);
-    state.messages,
+  const setError = useStore((state) => state.setError);
-    state.inputRole,
+  const messages = useStore((state) =>
-    state.setError,
+    state.chats ? state.chats[state.currentChatIndex].messages : []
-  ]);
+  );
+  const stickyIndex = useStore((state) =>
+    state.chats ? state.chats[state.currentChatIndex].messages.length : 0
+  );
+
   const { handleSubmit, error } = useSubmit();
 
   return (
@@ -38,7 +42,12 @@ const ChatContent = () => {
               <NewMessageButton messageIndex={index} />
             </>
           ))}
-          <Message role={inputRole} content='' messageIndex={-1} sticky />
+          <Message
+            role={inputRole}
+            content=''
+            messageIndex={stickyIndex}
+            sticky
+          />
 
           {error !== '' && (
             <div className='relative bg-red-600/50 p-2 rounded-sm w-3/5 mt-3'>

src/components/Chat/ChatContent/Message/Message.tsx

@@ -1,5 +1,4 @@
 import React from 'react';
-import useStore from '@store/store';
 
 import Avatar from './Avatar';
 import MessageContent from './MessageContent';
@@ -14,7 +13,8 @@ import RoleSelector from './RoleSelector';
 // };
 const backgroundStyle = ['dark:bg-gray-800', 'bg-gray-50 dark:bg-[#444654]'];
 
-const Message = ({
+const Message = React.memo(
+  ({
     role,
     content,
     messageIndex,
@@ -25,14 +25,10 @@ const Message = ({
     messageIndex: number;
     sticky?: boolean;
   }) => {
-  const stickyIndex = useStore((state) => state.messages.length);
-
     return (
       <div
         className={`w-full border-b border-black/10 dark:border-gray-900/50 text-gray-800 dark:text-gray-100 group ${
-        sticky
+          backgroundStyle[messageIndex % 2]
-          ? backgroundStyle[stickyIndex % 2]
-          : backgroundStyle[messageIndex % 2]
         }`}
         key={
           messageIndex !== -1
@@ -58,6 +54,7 @@ const Message = ({
         </div>
       </div>
     );
-};
+  }
+);
 
 export default Message;

src/components/Chat/ChatContent/Message/MessageContent.tsx

@@ -17,7 +17,7 @@ import DownChevronArrow from '@icon/DownChevronArrow';
 
 import useSubmit from '@hooks/useSubmit';
 
-import { MessageInterface } from '@type/chat';
+import { ChatInterface } from '@type/chat';
 
 import PopupModal from '@components/PopupModal';
 
@@ -56,7 +56,8 @@ const MessageContent = ({
   );
 };
 
-const ContentView = ({
+const ContentView = React.memo(
+  ({
     role,
     content,
     setIsEdit,
@@ -67,24 +68,29 @@ const ContentView = ({
     setIsEdit: React.Dispatch<React.SetStateAction<boolean>>;
     messageIndex: number;
   }) => {
-  const { handleSubmit, error } = useSubmit();
+    const { handleSubmit } = useSubmit();
 
     const [isDelete, setIsDelete] = useState<boolean>(false);
     const [copied, setCopied] = useState<boolean>(false);
-
+    const currentChatIndex = useStore((state) => state.currentChatIndex);
-  const [messages, setMessages] = useStore((state) => [
+    const setChats = useStore((state) => state.setChats);
-    state.messages,
+    const lastMessageIndex = useStore((state) =>
-    state.setMessages,
+      state.chats ? state.chats[state.currentChatIndex].messages.length - 1 : 0
-  ]);
+    );
 
     const handleDelete = () => {
-    const updatedMessages = JSON.parse(JSON.stringify(messages));
+      const updatedChats: ChatInterface[] = JSON.parse(
-    updatedMessages.splice(messageIndex, 1);
+        JSON.stringify(useStore.getState().chats)
-    setMessages(updatedMessages);
+      );
+      updatedChats[currentChatIndex].messages.splice(messageIndex, 1);
+      setChats(updatedChats);
     };
 
     const handleMove = (direction: 'up' | 'down') => {
-    const updatedMessages = JSON.parse(JSON.stringify(messages));
+      const updatedChats: ChatInterface[] = JSON.parse(
+        JSON.stringify(useStore.getState().chats)
+      );
+      const updatedMessages = updatedChats[currentChatIndex].messages;
       const temp = updatedMessages[messageIndex];
       if (direction === 'up') {
         updatedMessages[messageIndex] = updatedMessages[messageIndex - 1];
@@ -93,13 +99,16 @@ const ContentView = ({
         updatedMessages[messageIndex] = updatedMessages[messageIndex + 1];
         updatedMessages[messageIndex + 1] = temp;
       }
-    setMessages(updatedMessages);
+      setChats(updatedChats);
     };
 
     const handleRefresh = () => {
-    const updatedMessages = JSON.parse(JSON.stringify(messages));
+      const updatedChats: ChatInterface[] = JSON.parse(
+        JSON.stringify(useStore.getState().chats)
+      );
+      const updatedMessages = updatedChats[currentChatIndex].messages;
       updatedMessages.splice(updatedMessages.length - 1, 1);
-    setMessages(updatedMessages);
+      setChats(updatedChats);
       handleSubmit();
     };
 
@@ -177,13 +186,13 @@ const ContentView = ({
         <div className='flex justify-end gap-2 w-full mt-2'>
           {isDelete || (
             <>
-            {role === 'assistant' && messageIndex === messages?.length - 1 && (
+              {role === 'assistant' && messageIndex === lastMessageIndex && (
                 <RefreshButton onClick={handleRefresh} />
               )}
               {messageIndex !== 0 && (
                 <UpButton onClick={() => handleMove('up')} />
               )}
-            {messageIndex !== messages?.length - 1 && (
+              {messageIndex !== lastMessageIndex && (
                 <DownButton onClick={() => handleMove('down')} />
               )}
 
@@ -207,7 +216,8 @@ const ContentView = ({
         </div>
       </>
     );
-};
+  }
+);
 
 const MessageButton = ({
   onClick,
@@ -286,11 +296,9 @@ const EditView = ({
   messageIndex: number;
   sticky?: boolean;
 }) => {
-  const [messages, setMessages, inputRole] = useStore((state) => [
+  const inputRole = useStore((state) => state.inputRole);
-    state.messages,
+  const setChats = useStore((state) => state.setChats);
-    state.setMessages,
+  const currentChatIndex = useStore((state) => state.currentChatIndex);
-    state.inputRole,
-  ]);
 
   const [_content, _setContent] = useState<string>(content);
   const [isModalOpen, setIsModalOpen] = useState<boolean>(false);
@@ -319,9 +327,10 @@ const EditView = ({
 
   const handleSave = () => {
     if (_content === '') return;
-    const updatedMessages: MessageInterface[] = JSON.parse(
+    const updatedChats: ChatInterface[] = JSON.parse(
-      JSON.stringify(messages)
+      JSON.stringify(useStore.getState().chats)
     );
+    const updatedMessages = updatedChats[currentChatIndex].messages;
     if (sticky) {
       updatedMessages.push({ role: inputRole, content: _content });
       _setContent('');
@@ -330,26 +339,29 @@ const EditView = ({
       updatedMessages[messageIndex].content = _content;
       setIsEdit(false);
     }
-    setMessages(updatedMessages);
+    setChats(updatedChats);
   };
 
   const { handleSubmit } = useSubmit();
   const handleSaveAndSubmit = () => {
     if (_content == '') return;
-    const updatedMessages: MessageInterface[] = JSON.parse(
+    const updatedChats: ChatInterface[] = JSON.parse(
-      JSON.stringify(messages)
+      JSON.stringify(useStore.getState().chats)
     );
+    const updatedMessages = updatedChats[currentChatIndex].messages;
     if (sticky) {
       updatedMessages.push({ role: inputRole, content: _content });
       _setContent('');
-      setMessages(updatedMessages);
       resetTextAreaHeight();
     } else {
       updatedMessages[messageIndex].content = _content;
-      const _updatedMessages = updatedMessages.slice(0, messageIndex + 1);
+      updatedChats[currentChatIndex].messages = updatedMessages.slice(
-      setMessages(_updatedMessages);
+        0,
+        messageIndex + 1
+      );
       setIsEdit(false);
     }
+    setChats(updatedChats);
     handleSubmit();
   };
 

src/components/Chat/ChatContent/Message/NewMessageButton.tsx

@@ -3,27 +3,17 @@ import useStore from '@store/store';
 
 import PlusIcon from '@icon/PlusIcon';
 
-import { ChatInterface, MessageInterface } from '@type/chat';
+import { ChatInterface } from '@type/chat';
 import { defaultSystemMessage } from '@constants/chat';
 
-const NewMessageButton = ({ messageIndex }: { messageIndex: number }) => {
+const NewMessageButton = React.memo(
-  const [
+  ({ messageIndex }: { messageIndex: number }) => {
-    messages,
+    const setChats = useStore((state) => state.setChats);
-    chats,
+    const currentChatIndex = useStore((state) => state.currentChatIndex);
-    setMessages,
+    const setCurrentChatIndex = useStore((state) => state.setCurrentChatIndex);
-    currentChatIndex,
-    setChats,
-    setCurrentChatIndex,
-  ] = useStore((state) => [
-    state.messages,
-    state.chats,
-    state.setMessages,
-    state.currentChatIndex,
-    state.setChats,
-    state.setCurrentChatIndex,
-  ]);
 
     const addChat = () => {
+      const chats = useStore.getState().chats;
       if (chats) {
         const updatedChats: ChatInterface[] = JSON.parse(JSON.stringify(chats));
         let titleIndex = 1;
@@ -39,7 +29,6 @@ const NewMessageButton = ({ messageIndex }: { messageIndex: number }) => {
           messages: [{ role: 'system', content: defaultSystemMessage }],
         });
         setChats(updatedChats);
-      setMessages(updatedChats[0].messages);
         setCurrentChatIndex(0);
       }
     };
@@ -48,14 +37,14 @@ const NewMessageButton = ({ messageIndex }: { messageIndex: number }) => {
       if (currentChatIndex === -1) {
         addChat();
       } else {
-      const updatedMessages: MessageInterface[] = JSON.parse(
+        const updatedChats: ChatInterface[] = JSON.parse(
-        JSON.stringify(messages)
+          JSON.stringify(useStore.getState().chats)
         );
-      updatedMessages.splice(messageIndex + 1, 0, {
+        updatedChats[currentChatIndex].messages.splice(messageIndex + 1, 0, {
           content: '',
           role: 'user',
         });
-      setMessages(updatedMessages);
+        setChats(updatedChats);
       }
     };
 
@@ -69,6 +58,7 @@ const NewMessageButton = ({ messageIndex }: { messageIndex: number }) => {
         </div>
       </div>
     );
-};
+  }
+);
 
 export default NewMessageButton;

src/components/Chat/ChatContent/Message/RoleSelector.tsx

@@ -2,7 +2,7 @@ import React, { useState } from 'react';
 import useStore from '@store/store';
 
 import DownChevronArrow from '@icon/DownChevronArrow';
-import { MessageInterface, Role, roles } from '@type/chat';
+import { ChatInterface, Role, roles } from '@type/chat';
 
 const RoleSelector = ({
   role,
@@ -13,11 +13,9 @@ const RoleSelector = ({
   messageIndex: number;
   sticky?: boolean;
 }) => {
-  const [messages, setMessages, setInputRole] = useStore((state) => [
+  const setInputRole = useStore((state) => state.setInputRole);
-    state.messages,
+  const setChats = useStore((state) => state.setChats);
-    state.setMessages,
+  const currentChatIndex = useStore((state) => state.currentChatIndex);
-    state.setInputRole,
-  ]);
 
   const [dropDown, setDropDown] = useState<boolean>(false);
 
@@ -46,11 +44,12 @@ const RoleSelector = ({
               className='px-4 py-2 hover:bg-gray-100 dark:hover:bg-gray-600 dark:hover:text-white cursor-pointer'
               onClick={() => {
                 if (!sticky) {
-                  const updatedMessages: MessageInterface[] = JSON.parse(
+                  const updatedChats: ChatInterface[] = JSON.parse(
-                    JSON.stringify(messages)
+                    JSON.stringify(useStore.getState().chats)
                   );
-                  updatedMessages[messageIndex].role = r;
+                  updatedChats[currentChatIndex].messages[messageIndex].role =
-                  setMessages(updatedMessages);
+                    r;
+                  setChats(updatedChats);
                 } else {
                   setInputRole(r);
                 }
@@ -66,5 +65,4 @@ const RoleSelector = ({
     </div>
   );
 };
-
 export default RoleSelector;

src/components/ConfigMenu/ConfigMenu.tsx

@@ -5,15 +5,12 @@ import CrossIcon2 from '@icon/CrossIcon2';
 import { validateApiKey } from '@api/customApi';
 
 const ConfigMenu = () => {
-  const [apiKey, setApiKey, apiFree, setApiFree, openConfig, setOpenConfig] =
+  const apiKey = useStore((state) => state.apiKey);
-    useStore((state) => [
+  const setApiKey = useStore((state) => state.setApiKey);
-      state.apiKey,
+  const apiFree = useStore((state) => state.apiFree);
-      state.setApiKey,
+  const setApiFree = useStore((state) => state.setApiFree);
-      state.apiFree,
+  const openConfig = useStore((state) => state.openConfig);
-      state.setApiFree,
+  const setOpenConfig = useStore((state) => state.setOpenConfig);
-      state.openConfig,
-      state.setOpenConfig,
-    ]);
 
   const [_apiKey, _setApiKey] = useState<string>(apiKey || '');
   const [error, setError] = useState<boolean>(false);

src/components/Menu/ChatHistoryList.tsx

@@ -10,11 +10,8 @@ import CrossIcon from '@icon/CrossIcon';
 import useInitialiseNewChat from '@hooks/useInitialiseNewChat';
 
 const ChatHistoryList = () => {
-  const [chats, setCurrentChatIndex, setMessages] = useStore((state) => [
+  const setCurrentChatIndex = useStore((state) => state.setCurrentChatIndex);
-    state.chats,
+  const chats = useStore((state) => state.chats);
-    state.setCurrentChatIndex,
-    state.setMessages,
-  ]);
 
   return (
     <div className='flex-col flex-1 overflow-y-auto border-b border-white/20'>
@@ -27,7 +24,6 @@ const ChatHistoryList = () => {
               chatIndex={index}
               onClick={() => {
                 setCurrentChatIndex(index);
-                setMessages(chats[index].messages);
               }}
             />
           ))}
@@ -66,14 +62,9 @@ const ChatHistory = ({
   onClick?: React.MouseEventHandler<HTMLElement>;
 }) => {
   const initialiseNewChat = useInitialiseNewChat();
-  const [chats, setChats, currentChatIndex, setMessages, setCurrentChatIndex] =
+  const setCurrentChatIndex = useStore((state) => state.setCurrentChatIndex);
-    useStore((state) => [
+  const setChats = useStore((state) => state.setChats);
-      state.chats,
+  const currentChatIndex = useStore((state) => state.currentChatIndex);
-      state.setChats,
-      state.currentChatIndex,
-      state.setMessages,
-      state.setCurrentChatIndex,
-    ]);
 
   const [isDelete, setIsDelete] = useState<boolean>(false);
   const [isEdit, setIsEdit] = useState<boolean>(false);
@@ -83,7 +74,7 @@ const ChatHistory = ({
 
   const handleTick = (e: React.MouseEvent<HTMLButtonElement>) => {
     e.stopPropagation();
-    const updatedChats = JSON.parse(JSON.stringify(chats));
+    const updatedChats = JSON.parse(JSON.stringify(useStore.getState().chats));
     if (isEdit) {
       updatedChats[chatIndex].title = _title;
       setChats(updatedChats);
@@ -92,7 +83,6 @@ const ChatHistory = ({
       updatedChats.splice(chatIndex, 1);
       if (updatedChats.length > 0) {
         setCurrentChatIndex(0);
-        setMessages(updatedChats[0].messages);
         setChats(updatedChats);
       } else {
         initialiseNewChat();

src/components/Menu/Menu.tsx

@@ -1,5 +1,4 @@
 import React from 'react';
-import useStore from '@store/store';
 
 import NewChat from './NewChat';
 import ChatHistoryList from './ChatHistoryList';

src/components/Menu/MenuOptions/Config.tsx

@@ -4,10 +4,8 @@ import useStore from '@store/store';
 import PersonIcon from '@icon/PersonIcon';
 
 const Config = () => {
-  const [apiFree, setOpenConfig] = useStore((state) => [
+  const apiFree = useStore((state) => state.apiFree);
-    state.apiFree,
+  const setOpenConfig = useStore((state) => state.setOpenConfig);
-    state.setOpenConfig,
-  ]);
 
   return (
     <a

src/components/Menu/NewChat.tsx

@@ -1,20 +1,10 @@
 import React from 'react';
-import useStore from '@store/store';
 
 import PlusIcon from '@icon/PlusIcon';
 
 import useAddChat from '@hooks/useAddChat';
 
 const NewChat = () => {
-  const [chats, setChats, setCurrentChatIndex, setMessages] = useStore(
-    (state) => [
-      state.chats,
-      state.setChats,
-      state.setCurrentChatIndex,
-      state.setMessages,
-    ]
-  );
-
   const addChat = useAddChat();
 
   return (

src/components/MobileBar/MobileBar.tsx

@@ -5,10 +5,12 @@ import PlusIcon from '@icon/PlusIcon';
 import useAddChat from '@hooks/useAddChat';
 
 const MobileBar = () => {
-  const [chats, currentChatIndex] = useStore((state) => [
+  const chatTitle = useStore((state) =>
-    state.chats,
+    state.chats && state.chats.length > 0
-    state.currentChatIndex,
+      ? state.chats[state.currentChatIndex].title
-  ]);
+      : 'New Chat'
+  );
+
   const addChat = useAddChat();
 
   return (
@@ -42,11 +44,7 @@ const MobileBar = () => {
           <line x1='3' y1='18' x2='21' y2='18'></line>
         </svg>
       </button>
-      <h1 className='flex-1 text-center text-base font-normal'>
+      <h1 className='flex-1 text-center text-base font-normal'>{chatTitle}</h1>
-        {chats && chats.length > 0
-          ? chats[currentChatIndex]?.title
-          : 'New Chat'}
-      </h1>
       <button type='button' className='px-3 text-gray-400' onClick={addChat}>
         <PlusIcon className='h-6 w-6' />
       </button>

src/hooks/useAddChat.ts

@@ -4,16 +4,11 @@ import { defaultSystemMessage } from '@constants/chat';
 import { ChatInterface } from '@type/chat';
 
 const useAddChat = () => {
-  const [chats, setChats, setCurrentChatIndex, setMessages] = useStore(
+  const setChats = useStore((state) => state.setChats);
-    (state) => [
+  const setCurrentChatIndex = useStore((state) => state.setCurrentChatIndex);
-      state.chats,
-      state.setChats,
-      state.setCurrentChatIndex,
-      state.setMessages,
-    ]
-  );
 
   const addChat = () => {
+    const chats = useStore.getState().chats;
     if (chats) {
       const updatedChats: ChatInterface[] = JSON.parse(JSON.stringify(chats));
       let titleIndex = 1;
@@ -29,7 +24,6 @@ const useAddChat = () => {
         messages: [{ role: 'system', content: defaultSystemMessage }],
       });
       setChats(updatedChats);
-      setMessages(updatedChats[0].messages);
       setCurrentChatIndex(0);
     }
   };

src/hooks/useInitialiseNewChat.ts

@@ -4,11 +4,8 @@ import { MessageInterface } from '@type/chat';
 import { defaultSystemMessage } from '@constants/chat';
 
 const useInitialiseNewChat = () => {
-  const [setChats, setMessages, setCurrentChatIndex] = useStore((state) => [
+  const setChats = useStore((state) => state.setChats);
-    state.setChats,
+  const setCurrentChatIndex = useStore((state) => state.setCurrentChatIndex);
-    state.setMessages,
-    state.setCurrentChatIndex,
-  ]);
 
   const initialiseNewChat = () => {
     const message: MessageInterface = {
@@ -21,7 +18,6 @@ const useInitialiseNewChat = () => {
         messages: [message],
       },
     ]);
-    setMessages([message]);
     setCurrentChatIndex(0);
   };
 

src/hooks/useSaveToLocalStorage.ts

@@ -1,12 +1,19 @@
-import React, { useEffect } from 'react';
+import React, { useEffect, useRef } from 'react';
 import useStore from '@store/store';
 
 const useSaveToLocalStorage = () => {
-  const chats = useStore((state) => state.chats);
+  const chatsRef = useRef(useStore.getState().chats);
 
   useEffect(() => {
-    if (chats) localStorage.setItem('chats', JSON.stringify(chats));
+    const unsubscribe = useStore.subscribe((state) => {
-  }, [chats]);
+      if (chatsRef && chatsRef.current !== state.chats) {
+        chatsRef.current = state.chats;
+        localStorage.setItem('chats', JSON.stringify(state.chats));
+      }
+    });
+
+    return unsubscribe;
+  }, []);
 };
 
 export default useSaveToLocalStorage;

src/hooks/useSubmit.ts

@@ -1,48 +1,45 @@
 import React from 'react';
 import useStore from '@store/store';
-import { MessageInterface } from '@type/chat';
+import { ChatInterface } from '@type/chat';
 import { getChatCompletionStream as getChatCompletionStreamFree } from '@api/freeApi';
 import { getChatCompletionStream as getChatCompletionStreamCustom } from '@api/customApi';
 import { parseEventSource } from '@api/helper';
 
 const useSubmit = () => {
-  const [
+  const error = useStore((state) => state.error);
-    error,
+  const setError = useStore((state) => state.setError);
-    setError,
+  const apiFree = useStore((state) => state.apiFree);
-    apiFree,
+  const apiKey = useStore((state) => state.apiKey);
-    apiKey,
+  const setGenerating = useStore((state) => state.setGenerating);
-    setMessages,
+  const generating = useStore((state) => state.generating);
-    setGenerating,
+  const currentChatIndex = useStore((state) => state.currentChatIndex);
-    generating,
+  const setChats = useStore((state) => state.setChats);
-  ] = useStore((state) => [
-    state.error,
-    state.setError,
-    state.apiFree,
-    state.apiKey,
-    state.setMessages,
-    state.setGenerating,
-    state.generating,
-  ]);
 
   const handleSubmit = async () => {
-    if (generating) return;
+    const chats = useStore.getState().chats;
-    const messages = useStore.getState().messages;
+    if (generating || !chats) return;
 
-    const updatedMessages: MessageInterface[] = JSON.parse(
+    const updatedChats: ChatInterface[] = JSON.parse(JSON.stringify(chats));
-      JSON.stringify(messages)
-    );
 
-    updatedMessages.push({ role: 'assistant', content: '' });
+    updatedChats[currentChatIndex].messages.push({
+      role: 'assistant',
+      content: '',
+    });
 
-    setMessages(updatedMessages);
+    setChats(updatedChats);
     setGenerating(true);
     let stream;
 
     try {
       if (apiFree) {
-        stream = await getChatCompletionStreamFree(messages);
+        stream = await getChatCompletionStreamFree(
+          chats[currentChatIndex].messages
+        );
       } else if (apiKey) {
-        stream = await getChatCompletionStreamCustom(apiKey, messages);
+        stream = await getChatCompletionStreamCustom(
+          apiKey,
+          chats[currentChatIndex].messages
+        );
       }
 
       if (stream) {
@@ -65,11 +62,12 @@ const useSubmit = () => {
               }
             }, '');
 
-            const updatedMessages: MessageInterface[] = JSON.parse(
+            const updatedChats: ChatInterface[] = JSON.parse(
-              JSON.stringify(useStore.getState().messages)
+              JSON.stringify(useStore.getState().chats)
             );
+            const updatedMessages = updatedChats[currentChatIndex].messages;
             updatedMessages[updatedMessages.length - 1].content += resultString;
-            setMessages(updatedMessages);
+            setChats(updatedChats);
           }
         }
       }

src/hooks/useUpdateChats.ts

@@ -1,25 +0,0 @@
-import React, { useEffect } from 'react';
-import useStore from '@store/store';
-import { ChatInterface, MessageInterface } from '@type/chat';
-
-const useUpdateCharts = () => {
-  const [chats, messages, setChats, currentChatIndex] = useStore((state) => [
-    state.chats,
-    state.messages,
-    state.setChats,
-    state.currentChatIndex,
-  ]);
-
-  useEffect(() => {
-    if (currentChatIndex !== -1 && chats && chats.length > 0) {
-      const updatedChats: ChatInterface[] = JSON.parse(JSON.stringify(chats));
-      const updatedMessages: MessageInterface[] = JSON.parse(
-        JSON.stringify(messages)
-      );
-      updatedChats[currentChatIndex].messages = updatedMessages;
-      setChats(updatedChats);
-    }
-  }, [messages]);
-};
-
-export default useUpdateCharts;