fix: chat reducer placeholder

Author: astandrik

src/lib.ts

@@ -7,6 +7,7 @@ export {
 export {AsideNavigation} from './containers/AsideNavigation/AsideNavigation';
 
 export {configureStore, rootReducer} from './store';
+export type {ConfigureStoreOptions} from './store';
 export {default as appRoutes} from './routes';
 
 export {YdbEmbeddedAPI} from './services/api';
@@ -52,3 +53,7 @@ export type {
 
 // Re-export chat component types from ComponentsProvider
 export type {AIAssistantButtonProps, ChatPanelProps} from './components/ComponentsProvider';
+
+// Export placeholder chat reducer and actions
+// These can be overridden by external implementations
+export {chatReducer, chatActions} from './store/reducers/chat/chatPlaceholder';

src/services/api/aiAssist.ts

@@ -1,5 +1,5 @@
-import type {ChatDelta, ChatMessage, QuotaInfo} from '../../features/chat/types/chat';
 import {aiAssistBackend as AI_ASSISTANT_BACKEND} from '../../store';
+import type {ChatDelta, ChatMessage, QuotaInfo} from '../../types/chat';
 
 import {BaseYdbAPI} from './base';
 
@@ -48,7 +48,6 @@ export class AIAssistAPI extends BaseYdbAPI {
             const decoder = new TextDecoder();
             let buffer = '';
 
-            // eslint-disable-next-line no-constant-condition
             while (true) {
                 const {done, value} = await reader.read();
                 if (done) {

src/store/configureStore.ts

@@ -55,20 +55,40 @@ export const aiAssistBackend = window.ai_assist_backend;
 
 const isSingleClusterMode = `${metaBackend}` === 'undefined';
 
+export interface ConfigureStoreOptions {
+    aRootReducer?: typeof rootReducer;
+    singleClusterMode?: boolean;
+    api?: YdbEmbeddedAPI;
+    additionalReducers?: Record<string, Reducer>;
+}
+
 export function configureStore({
     aRootReducer = rootReducer,
     singleClusterMode = isSingleClusterMode,
     api = new YdbEmbeddedAPI({webVersion, withCredentials: !customBackend}),
-} = {}) {
+    additionalReducers = {},
+}: ConfigureStoreOptions = {}) {
     ({backend, basename, clusterName} = getUrlData({
         singleClusterMode,
         customBackend,
     }));
     const history = createBrowserHistory({basename});
 
-    const store = _configureStore(aRootReducer, history, {singleClusterMode}, [
-        storeApi.middleware,
-    ]);
+    // Merge root reducer with additional reducers
+    const mergedReducer =
+        Object.keys(additionalReducers).length > 0
+            ? {
+                  ...aRootReducer,
+                  ...additionalReducers,
+              }
+            : aRootReducer;
+
+    const store = _configureStore(
+        mergedReducer as typeof rootReducer,
+        history,
+        {singleClusterMode},
+        [storeApi.middleware],
+    );
     listenForHistoryChange(store, history);
 
     window.api = api;

src/store/index.ts

@@ -12,3 +12,4 @@ export {
 export {rootReducer} from './reducers';
 
 export type {AppDispatch, GetState, RootState} from './defaultStore';
+export type {ConfigureStoreOptions} from './configureStore';

src/store/reducers/chat/chatPlaceholder.ts

@@ -0,0 +1,37 @@
+import {createSlice} from '@reduxjs/toolkit';
+
+import type {ChatState} from '../../../types/chat';
+
+// Placeholder chat reducer
+// This will be overridden when chat feature is implemented in external packages
+
+const initialState: ChatState = {
+    messages: [],
+    isStreaming: false,
+    error: null,
+    sessionId: null,
+    isOpen: false,
+    needsNewAssistantMessage: false,
+    currentStreamingMessageId: undefined,
+};
+
+const chatPlaceholderSlice = createSlice({
+    name: 'chat',
+    initialState,
+    reducers: {
+        // Placeholder actions that do nothing
+        openChat: () => initialState,
+        closeChat: () => initialState,
+        toggleChat: () => initialState,
+        addMessage: () => initialState,
+        updateMessage: () => initialState,
+        clearMessages: () => initialState,
+        startStreaming: () => initialState,
+        stopStreaming: () => initialState,
+        setError: () => initialState,
+        clearError: () => initialState,
+    },
+});
+
+export const chatActions = chatPlaceholderSlice.actions;
+export const chatReducer = chatPlaceholderSlice.reducer;

src/store/reducers/index.ts

@@ -1,9 +1,8 @@
 import {combineReducers} from '@reduxjs/toolkit';
 
-import {chatReducer} from '../../features/chat/store/chatSlice';
-
 import {api} from './api';
 import authentication from './authentication/authentication';
+import {chatReducer} from './chat/chatPlaceholder';
 import cluster from './cluster/cluster';
 import clusters from './clusters/clusters';
 import executeTopQueries from './executeTopQueries/executeTopQueries';