feat: add desktop notifications and skills updates

server/modules/notifications/services/desktop-notification-clients.service.ts

@@ -0,0 +1,124 @@
+import type { WebSocket } from 'ws';
+
+import { notificationChannelEndpointsDb } from '@/modules/database/index.js';
+
+const DESKTOP_CHANNEL = 'desktop';
+
+const clientsByUserId = new Map<number, Map<string, WebSocket>>();
+const clientBySocket = new WeakMap<WebSocket, { userId: number; endpointId: string }>();
+
+function normalizeUserId(userId: unknown): number | null {
+  const numeric = Number(userId);
+  return Number.isInteger(numeric) && numeric > 0 ? numeric : null;
+}
+
+function normalizeEndpointId(endpointId: unknown): string {
+  if (typeof endpointId !== 'string') return '';
+  return endpointId.trim();
+}
+
+function getUserClients(userId: unknown, create = false): Map<string, WebSocket> | null {
+  const normalizedUserId = normalizeUserId(userId);
+  if (!normalizedUserId) return null;
+  let clients = clientsByUserId.get(normalizedUserId);
+  if (!clients && create) {
+    clients = new Map();
+    clientsByUserId.set(normalizedUserId, clients);
+  }
+  return clients || null;
+}
+
+export function registerDesktopNotificationClient({
+  userId,
+  deviceId,
+  label = null,
+  platform = null,
+  appVersion = null,
+  ws,
+}: {
+  userId: number;
+  deviceId: string;
+  label?: string | null;
+  platform?: string | null;
+  appVersion?: string | null;
+  ws: WebSocket;
+}) {
+  const normalizedUserId = normalizeUserId(userId);
+  const endpointId = normalizeEndpointId(deviceId);
+  if (!normalizedUserId || !endpointId) {
+    return false;
+  }
+
+  const endpoint = notificationChannelEndpointsDb.upsertEndpoint({
+    userId: normalizedUserId,
+    channel: DESKTOP_CHANNEL,
+    endpointId,
+    label,
+    metadata: { platform, appVersion },
+    enabled: true,
+  });
+
+  const clients = getUserClients(normalizedUserId, true)!;
+  const previous = clients.get(endpointId);
+  if (previous && previous !== ws && previous.readyState === previous.OPEN) {
+    previous.close(4000, 'Device reconnected');
+  }
+
+  clients.set(endpointId, ws);
+  clientBySocket.set(ws, { userId: normalizedUserId, endpointId });
+  return endpoint;
+}
+
+export function unregisterDesktopNotificationClient(ws: WebSocket): void {
+  const registration = clientBySocket.get(ws);
+  if (!registration) return;
+
+  const clients = getUserClients(registration.userId);
+  if (clients?.get(registration.endpointId) === ws) {
+    clients.delete(registration.endpointId);
+    if (clients.size === 0) {
+      clientsByUserId.delete(registration.userId);
+    }
+  }
+  clientBySocket.delete(ws);
+}
+
+export function sendDesktopNotification(userId: unknown, payload: unknown): { attempted: number; sent: number } {
+  const normalizedUserId = normalizeUserId(userId);
+  if (!normalizedUserId) return { attempted: 0, sent: 0 };
+
+  const clients = getUserClients(normalizedUserId);
+  if (!clients?.size) return { attempted: 0, sent: 0 };
+
+  const enabledEndpointIds = new Set(
+    notificationChannelEndpointsDb
+      .getEnabledEndpoints(normalizedUserId, DESKTOP_CHANNEL)
+      .map((endpoint) => endpoint.endpoint_id)
+  );
+
+  const message = JSON.stringify({
+    type: 'notification',
+    id: typeof (payload as any)?.data?.tag === 'string' ? (payload as any).data.tag : `${Date.now()}`,
+    payload,
+  });
+
+  let attempted = 0;
+  let sent = 0;
+  for (const [endpointId, ws] of clients.entries()) {
+    if (!enabledEndpointIds.has(endpointId)) continue;
+    attempted += 1;
+    if (ws.readyState !== ws.OPEN) {
+      unregisterDesktopNotificationClient(ws);
+      continue;
+    }
+    try {
+      ws.send(message);
+      notificationChannelEndpointsDb.touchEndpoint(normalizedUserId, DESKTOP_CHANNEL, endpointId);
+      sent += 1;
+    } catch {
+      unregisterDesktopNotificationClient(ws);
+    }
+  }
+
+  return { attempted, sent };
+}

server/modules/notifications/services/notification-orchestrator.service.js

@@ -0,0 +1,288 @@
+import webPush from 'web-push';
+
+import { notificationPreferencesDb, pushSubscriptionsDb, sessionsDb } from '@/modules/database/index.js';
+import { sendDesktopNotification as sendDesktopNotificationToClients } from '@/modules/notifications/services/desktop-notification-clients.service.js';
+
+const KIND_TO_PREF_KEY = {
+  action_required: 'actionRequired',
+  stop: 'stop',
+  error: 'error'
+};
+
+const PROVIDER_LABELS = {
+  claude: 'Claude',
+  cursor: 'Cursor',
+  codex: 'Codex',
+  gemini: 'Gemini',
+  system: 'System'
+};
+
+const recentEventKeys = new Map();
+const DEDUPE_WINDOW_MS = 20000;
+
+const cleanupOldEventKeys = () => {
+  const now = Date.now();
+  for (const [key, timestamp] of recentEventKeys.entries()) {
+    if (now - timestamp > DEDUPE_WINDOW_MS) {
+      recentEventKeys.delete(key);
+    }
+  }
+};
+
+function isNotificationEventEnabled(preferences, event) {
+  const prefEventKey = KIND_TO_PREF_KEY[event.kind];
+  const eventEnabled = prefEventKey ? Boolean(preferences?.events?.[prefEventKey]) : true;
+
+  return eventEnabled;
+}
+
+function isDuplicate(event) {
+  cleanupOldEventKeys();
+  const key = event.dedupeKey || `${event.provider}:${event.kind || 'info'}:${event.code || 'generic'}:${event.sessionId || 'none'}`;
+  if (recentEventKeys.has(key)) {
+    return true;
+  }
+  recentEventKeys.set(key, Date.now());
+  return false;
+}
+
+function createNotificationEvent({
+  provider,
+  sessionId = null,
+  kind = 'info',
+  code = 'generic.info',
+  meta = {},
+  severity = 'info',
+  dedupeKey = null,
+  requiresUserAction = false
+}) {
+  return {
+    provider,
+    sessionId,
+    kind,
+    code,
+    meta,
+    severity,
+    requiresUserAction,
+    dedupeKey,
+    createdAt: new Date().toISOString()
+  };
+}
+
+function normalizeErrorMessage(error) {
+  if (typeof error === 'string') {
+    return error;
+  }
+
+  if (error && typeof error.message === 'string') {
+    return error.message;
+  }
+
+  if (error == null) {
+    return 'Unknown error';
+  }
+
+  return String(error);
+}
+
+function normalizeSessionName(sessionName) {
+  if (typeof sessionName !== 'string') {
+    return null;
+  }
+
+  const normalized = sessionName.replace(/\s+/g, ' ').trim();
+  if (!normalized) {
+    return null;
+  }
+
+  return normalized.length > 80 ? `${normalized.slice(0, 77)}...` : normalized;
+}
+
+function rowMatchesProvider(row, provider) {
+  return row && (!provider || row.provider === provider);
+}
+
+function resolveSessionRow(sessionId, provider) {
+  if (!sessionId) {
+    return null;
+  }
+
+  const appSessionRow = sessionsDb.getSessionById(sessionId);
+  if (rowMatchesProvider(appSessionRow, provider)) {
+    return appSessionRow;
+  }
+
+  const providerSessionRow = sessionsDb.getSessionByProviderSessionId(sessionId);
+  if (rowMatchesProvider(providerSessionRow, provider)) {
+    return providerSessionRow;
+  }
+
+  return null;
+}
+
+function normalizeNotificationSession(event) {
+  if (!event?.sessionId || !event.provider || event.provider === 'system') {
+    return event;
+  }
+
+  const row = resolveSessionRow(event.sessionId, event.provider);
+  if (!row || row.session_id === event.sessionId) {
+    return event;
+  }
+
+  return {
+    ...event,
+    sessionId: row.session_id
+  };
+}
+
+function resolveSessionName(event) {
+  const explicitSessionName = normalizeSessionName(event.meta?.sessionName);
+  if (explicitSessionName) {
+    return explicitSessionName;
+  }
+
+  if (!event.sessionId || !event.provider) {
+    return null;
+  }
+
+  return normalizeSessionName(sessionsDb.getSessionName(event.sessionId, event.provider));
+}
+
+function buildNotificationPayload(event) {
+  const normalizedEvent = normalizeNotificationSession(event);
+  const CODE_MAP = {
+    'permission.required': normalizedEvent.meta?.toolName
+      ? `Action Required: Tool "${normalizedEvent.meta.toolName}" needs approval`
+      : 'Action Required: A tool needs your approval',
+    'run.stopped': normalizedEvent.meta?.stopReason || 'Run Stopped: The run has stopped',
+    'run.failed': normalizedEvent.meta?.error ? `Run Failed: ${normalizedEvent.meta.error}` : 'Run Failed: The run encountered an error',
+    'agent.notification': normalizedEvent.meta?.message ? String(normalizedEvent.meta.message) : 'You have a new notification',
+    'push.enabled': 'Push notifications are now enabled!'
+  };
+  const providerLabel = PROVIDER_LABELS[normalizedEvent.provider] || 'Assistant';
+  const sessionName = resolveSessionName(normalizedEvent);
+  const message = CODE_MAP[normalizedEvent.code] || 'You have a new notification';
+
+  return {
+    title: sessionName || 'CloudCLI',
+    body: `${providerLabel}: ${message}`,
+    data: {
+      sessionId: normalizedEvent.sessionId || null,
+      code: normalizedEvent.code,
+      provider: normalizedEvent.provider || null,
+      sessionName,
+      tag: `${normalizedEvent.provider || 'assistant'}:${normalizedEvent.sessionId || 'none'}:${normalizedEvent.code}`
+    }
+  };
+}
+
+function sendWebPushPayload(userId, payload) {
+  const subscriptions = pushSubscriptionsDb.getSubscriptions(userId);
+  if (!subscriptions.length) return Promise.resolve();
+
+  const serializedPayload = JSON.stringify(payload);
+  return Promise.allSettled(
+    subscriptions.map((sub) =>
+      webPush.sendNotification(
+        {
+          endpoint: sub.endpoint,
+          keys: {
+            p256dh: sub.keys_p256dh,
+            auth: sub.keys_auth
+          }
+        },
+        serializedPayload
+      )
+    )
+  ).then((results) => {
+    results.forEach((result, index) => {
+      if (result.status === 'rejected') {
+        const statusCode = result.reason?.statusCode;
+        if (statusCode === 410 || statusCode === 404) {
+          pushSubscriptionsDb.removeSubscription(subscriptions[index].endpoint);
+        }
+      }
+    });
+  });
+}
+
+const notificationChannels = [
+  {
+    id: 'webPush',
+    // TODO: Web push still uses push_subscriptions. Do not remove that table until
+    // browser push subscriptions are migrated into notification_channel_endpoints.
+    isEnabled: (preferences) => Boolean(preferences?.channels?.webPush),
+    send: ({ userId, payload }) => sendWebPushPayload(userId, payload)
+  },
+  {
+    id: 'desktop',
+    isEnabled: (preferences) => Boolean(preferences?.channels?.desktop),
+    send: ({ userId, payload }) => sendDesktopNotificationToClients(userId, payload)
+  }
+];
+
+function notifyUserIfEnabled({ userId, event }) {
+  if (!userId || !event) {
+    return;
+  }
+
+  const normalizedEvent = normalizeNotificationSession(event);
+  const preferences = notificationPreferencesDb.getPreferences(userId);
+  if (!isNotificationEventEnabled(preferences, normalizedEvent)) {
+    return;
+  }
+  if (isDuplicate(normalizedEvent)) {
+    return;
+  }
+
+  const payload = buildNotificationPayload(normalizedEvent);
+  for (const channel of notificationChannels) {
+    if (!channel.isEnabled(preferences)) {
+      continue;
+    }
+    Promise.resolve(channel.send({ userId, event: normalizedEvent, payload })).catch((err) => {
+      console.error(`Notification channel "${channel.id}" send error:`, err);
+    });
+  }
+}
+
+function notifyRunStopped({ userId, provider, sessionId = null, stopReason = 'completed', sessionName = null }) {
+  notifyUserIfEnabled({
+    userId,
+    event: createNotificationEvent({
+      provider,
+      sessionId,
+      kind: 'stop',
+      code: 'run.stopped',
+      meta: { stopReason, sessionName },
+      severity: 'info',
+      dedupeKey: `${provider}:run:stop:${sessionId || 'none'}:${stopReason}`
+    })
+  });
+}
+
+function notifyRunFailed({ userId, provider, sessionId = null, error, sessionName = null }) {
+  const errorMessage = normalizeErrorMessage(error);
+
+  notifyUserIfEnabled({
+    userId,
+    event: createNotificationEvent({
+      provider,
+      sessionId,
+      kind: 'error',
+      code: 'run.failed',
+      meta: { error: errorMessage, sessionName },
+      severity: 'error',
+      dedupeKey: `${provider}:run:error:${sessionId || 'none'}:${errorMessage}`
+    })
+  });
+}
+
+export {
+  buildNotificationPayload,
+  createNotificationEvent,
+  notifyUserIfEnabled,
+  notifyRunStopped,
+  notifyRunFailed
+};