fix: recreate watcher on path change (#1203)

<!-- This is an auto-generated comment: release notes by coderabbit.ai
-->
## Summary by CodeRabbit

- **Bug Fixes**
- Improved the notifications system by refreshing the monitoring process
only when configuration changes occur, leading to a more reliable
experience.

- **Chores**
- Updated internal synchronization timestamps in multiple files to
ensure consistency and accurate tracking of recent events.
- Removed logging functionality for notifications state to streamline
the logging process.
<!-- end of auto-generated comment: release notes by coderabbit.ai -->

api/src/store/index.ts

@@ -8,7 +8,6 @@ import { dynamicRemoteAccessReducer } from '@app/store/modules/dynamic-remote-ac
 import { dynamix } from '@app/store/modules/dynamix.js';
 import { emhttp } from '@app/store/modules/emhttp.js';
 import { mothership } from '@app/store/modules/minigraph.js';
-import { notificationReducer } from '@app/store/modules/notifications.js';
 import { paths } from '@app/store/modules/paths.js';
 import { registration } from '@app/store/modules/registration.js';
 import { remoteGraphQLReducer } from '@app/store/modules/remote-graphql.js';
@@ -23,7 +22,6 @@ export const store = configureStore({
         emhttp: emhttp.reducer,
         registration: registration.reducer,
         remoteGraphQL: remoteGraphQLReducer,
-        notifications: notificationReducer,
         cache: cache.reducer,
         docker: docker.reducer,
         upnp: upnp.reducer,
@@ -46,7 +44,6 @@ export const getters = {
     dynamix: () => store.getState().dynamix,
     emhttp: () => store.getState().emhttp,
     minigraph: () => store.getState().minigraph,
-    notifications: () => store.getState().notifications,
     paths: () => store.getState().paths,
     registration: () => store.getState().registration,
     remoteGraphQL: () => store.getState().remoteGraphQL,

api/src/store/listeners/notification-path-listener.ts

@@ -1,21 +0,0 @@
-import { logger } from '@app/core/log.js';
-import { startAppListening } from '@app/store/listeners/listener-middleware.js';
-import { clearAllNotifications } from '@app/store/modules/notifications.js';
-
-export const enableNotificationPathListener = () =>
-    startAppListening({
-        predicate(_, currentState, previousState) {
-            if (
-                currentState.dynamix.notify?.path !== '' &&
-                previousState.dynamix.notify?.path !== currentState.dynamix.notify?.path
-            ) {
-                return true;
-            }
-
-            return false;
-        },
-        async effect(_, { dispatch }) {
-            logger.debug('Notification Path Changed or Loaded, Recreating Watcher');
-            dispatch(clearAllNotifications());
-        },
-    });

api/src/store/modules/notifications.ts

@@ -1,92 +0,0 @@
-import type { PayloadAction } from '@reduxjs/toolkit';
-import { createAsyncThunk, createSlice } from '@reduxjs/toolkit';
-
-import type { Notification } from '@app/graphql/generated/api/types.js';
-import { logger } from '@app/core/log.js';
-import { pubsub, PUBSUB_CHANNEL } from '@app/core/pubsub.js';
-import { type NotificationIni } from '@app/core/types/states/notification.js';
-import { parseConfig } from '@app/core/utils/misc/parse-config.js';
-import { NotificationSchema } from '@app/graphql/generated/api/operations.js';
-import { Importance, NotificationType } from '@app/graphql/generated/api/types.js';
-import { type AppDispatch, type RootState } from '@app/store/index.js';
-
-interface NotificationState {
-    notifications: Record<string, Notification>;
-}
-
-const notificationInitialState: NotificationState = {
-    notifications: {},
-};
-
-const fileImportanceToGqlImportance = (importance: NotificationIni['importance']): Importance => {
-    switch (importance) {
-        case 'alert':
-            return Importance.ALERT;
-        case 'warning':
-            return Importance.WARNING;
-        default:
-            return Importance.INFO;
-    }
-};
-
-const parseNotificationDateToIsoDate = (unixStringSeconds: string | undefined): string | null => {
-    if (unixStringSeconds && !isNaN(Number(unixStringSeconds))) {
-        return new Date(Number(unixStringSeconds) * 1_000).toISOString();
-    }
-    return null;
-};
-
-export const loadNotification = createAsyncThunk<
-    { id: string; notification: Notification },
-    { path: string },
-    { state: RootState; dispatch: AppDispatch }
->('notifications/loadNotification', ({ path }) => {
-    const notificationFile = parseConfig<NotificationIni>({
-        filePath: path,
-        type: 'ini',
-    });
-
-    const notification: Notification = {
-        id: path,
-        title: notificationFile.event,
-        subject: notificationFile.subject,
-        description: notificationFile.description ?? '',
-        importance: fileImportanceToGqlImportance(notificationFile.importance),
-        link: notificationFile.link,
-        timestamp: parseNotificationDateToIsoDate(notificationFile.timestamp),
-        type: NotificationType.UNREAD,
-    };
-    const convertedNotification = NotificationSchema().parse(notification);
-
-    if (convertedNotification) {
-        pubsub.publish(PUBSUB_CHANNEL.NOTIFICATION, { notificationAdded: convertedNotification });
-        return { id: path, notification: convertedNotification };
-    }
-    throw new Error('Failed to parse notification');
-});
-
-export const notificationsStore = createSlice({
-    name: 'notifications',
-    initialState: notificationInitialState,
-    reducers: {
-        clearNotification: (state, action: PayloadAction<{ path: string }>) => {
-            if (state.notifications[action.payload.path]) {
-                delete state.notifications[action.payload.path];
-            }
-        },
-        clearAllNotifications: (state) => {
-            state.notifications = {};
-        },
-    },
-    extraReducers: (builder) => {
-        builder.addCase(loadNotification.fulfilled, (state, { payload }) => {
-            state.notifications[payload.id] = payload.notification;
-        });
-        builder.addCase(loadNotification.rejected, (_, action) => {
-            logger.debug('Failed to load notification with error %o', action.error);
-        });
-    },
-});
-
-export const notificationReducer = notificationsStore.reducer;
-export const { clearNotification, clearAllNotifications } = notificationsStore.actions;

api/src/store/store-sync.ts

@@ -41,10 +41,6 @@ export const startStoreSync = async () => {
                 join(state.paths.states, 'graphql.log'),
                 JSON.stringify(state.minigraph, null, 2)
             );
-            writeFileSync(
-                join(state.paths.states, 'notifications.log'),
-                JSON.stringify(state.notifications, null, 2)
-            );
         }
 
         lastState = state;

api/src/unraid-api/graph/resolvers/notifications/notifications.service.ts

@@ -33,6 +33,10 @@ import { batchProcess, formatDatetime, isFulfilled, isRejected, unraidTimestamp
 export class NotificationsService {
     private logger = new Logger(NotificationsService.name);
     private static watcher: FSWatcher | null = null;
+    /**
+     * The path to the notification directory - will be updated if the user changes the notifier path
+     */
+    private path: string | null = null;
 
     private static overview: NotificationOverview = {
         unread: {
@@ -50,7 +54,8 @@ export class NotificationsService {
     };
 
     constructor() {
-        NotificationsService.watcher = this.getNotificationsWatcher();
+        this.path = getters.dynamix().notify!.path;
+        void this.getNotificationsWatcher(this.path);
     }
 
     /**
@@ -63,6 +68,13 @@ export class NotificationsService {
      */
     public paths(): Record<'basePath' | NotificationType, string> {
         const basePath = getters.dynamix().notify!.path;
+
+        if (this.path !== basePath) {
+            // Recreate the watcher with force = true
+            void this.getNotificationsWatcher(basePath, true);
+            this.path = basePath;
+        }
+
         const makePath = (type: NotificationType) => join(basePath, type.toLowerCase());
         return {
             basePath,
@@ -78,12 +90,11 @@ export class NotificationsService {
      * events to their event handlers.
      *------------------------------------------------------------------------**/
 
-    private getNotificationsWatcher() {
-        const { basePath } = this.paths();
-
-        if (NotificationsService.watcher) {
+    private async getNotificationsWatcher(basePath: string, recreate = false): Promise<FSWatcher> {
+        if (NotificationsService.watcher && !recreate) {
             return NotificationsService.watcher;
         }
+        await NotificationsService.watcher?.close().catch((e) => this.logger.error(e));
 
         NotificationsService.watcher = watch(basePath, { usePolling: CHOKIDAR_USEPOLLING }).on(
             'add',

api/src/unraid-api/unraid-file-modifier/modifications/__test__/__fixtures__/downloaded/.login.php.last-download-time

@@ -1 +1 @@
-1739911366509
+1740588065597

api/src/unraid-api/unraid-file-modifier/modifications/__test__/__fixtures__/downloaded/DefaultPageLayout.php.last-download-time

@@ -1 +1 @@
-1739911365729
+1740588063495

api/src/unraid-api/unraid-file-modifier/modifications/__test__/__fixtures__/downloaded/Notifications.page.last-download-time

@@ -1 +1 @@
-1739911366308
+1740588063858

api/src/unraid-api/unraid-file-modifier/modifications/__test__/__fixtures__/downloaded/auth-request.php.last-download-time

@@ -1 +1 @@
-1739911366763
+1740588065854