feat: add desktop notifications and skills updates

server/modules/database/repositories/notification-channel-endpoints.ts

@@ -0,0 +1,153 @@
+import { getConnection } from '@/modules/database/connection.js';
+
+type NotificationChannelEndpointRow = {
+  id: number;
+  user_id: number;
+  channel: string;
+  endpoint_id: string;
+  label: string | null;
+  metadata_json: string | null;
+  enabled: number;
+  last_seen_at: string;
+  created_at: string;
+  updated_at: string;
+};
+
+type UpsertNotificationChannelEndpointInput = {
+  userId: number;
+  channel: string;
+  endpointId: string;
+  label?: string | null;
+  metadata?: Record<string, unknown> | null;
+  enabled?: boolean;
+};
+
+function normalizeRequiredText(value: unknown): string {
+  if (typeof value !== 'string') return '';
+  return value.trim();
+}
+
+function normalizeNullableText(value: unknown): string | null {
+  if (typeof value !== 'string') return null;
+  const normalized = value.trim();
+  return normalized || null;
+}
+
+function serializeMetadata(metadata: Record<string, unknown> | null | undefined): string | null {
+  if (!metadata || typeof metadata !== 'object') return null;
+  return JSON.stringify(metadata);
+}
+
+function parseMetadata(metadataJson: string | null): Record<string, unknown> {
+  if (!metadataJson) return {};
+  try {
+    const parsed = JSON.parse(metadataJson);
+    return parsed && typeof parsed === 'object' ? parsed as Record<string, unknown> : {};
+  } catch {
+    return {};
+  }
+}
+
+export const notificationChannelEndpointsDb = {
+  upsertEndpoint(input: UpsertNotificationChannelEndpointInput): NotificationChannelEndpointRow {
+    const channel = normalizeRequiredText(input.channel);
+    const endpointId = normalizeRequiredText(input.endpointId);
+    if (!channel) throw new Error('channel is required');
+    if (!endpointId) throw new Error('endpointId is required');
+
+    const enabled = input.enabled === false ? 0 : 1;
+    const db = getConnection();
+    db.prepare(
+      `INSERT INTO notification_channel_endpoints (
+         user_id,
+         channel,
+         endpoint_id,
+         label,
+         metadata_json,
+         enabled,
+         last_seen_at,
+         updated_at
+       )
+       VALUES (?, ?, ?, ?, ?, ?, CURRENT_TIMESTAMP, CURRENT_TIMESTAMP)
+       ON CONFLICT(user_id, channel, endpoint_id) DO UPDATE SET
+         label = excluded.label,
+         metadata_json = excluded.metadata_json,
+         enabled = excluded.enabled,
+         last_seen_at = CURRENT_TIMESTAMP,
+         updated_at = CURRENT_TIMESTAMP`
+    ).run(
+      input.userId,
+      channel,
+      endpointId,
+      normalizeNullableText(input.label),
+      serializeMetadata(input.metadata),
+      enabled
+    );
+
+    return notificationChannelEndpointsDb.getEndpoint(input.userId, channel, endpointId)!;
+  },
+
+  getEndpoint(userId: number, channel: string, endpointId: string): NotificationChannelEndpointRow | null {
+    const db = getConnection();
+    const row = db.prepare(
+      `SELECT id, user_id, channel, endpoint_id, label, metadata_json, enabled, last_seen_at, created_at, updated_at
+       FROM notification_channel_endpoints
+       WHERE user_id = ? AND channel = ? AND endpoint_id = ?`
+    ).get(
+      userId,
+      normalizeRequiredText(channel),
+      normalizeRequiredText(endpointId)
+    ) as NotificationChannelEndpointRow | undefined;
+    return row || null;
+  },
+
+  getEndpoints(userId: number, channel: string): NotificationChannelEndpointRow[] {
+    const db = getConnection();
+    return db.prepare(
+      `SELECT id, user_id, channel, endpoint_id, label, metadata_json, enabled, last_seen_at, created_at, updated_at
+       FROM notification_channel_endpoints
+       WHERE user_id = ? AND channel = ?
+       ORDER BY last_seen_at DESC`
+    ).all(userId, normalizeRequiredText(channel)) as NotificationChannelEndpointRow[];
+  },
+
+  getEnabledEndpoints(userId: number, channel: string): NotificationChannelEndpointRow[] {
+    const db = getConnection();
+    return db.prepare(
+      `SELECT id, user_id, channel, endpoint_id, label, metadata_json, enabled, last_seen_at, created_at, updated_at
+       FROM notification_channel_endpoints
+       WHERE user_id = ? AND channel = ? AND enabled = 1
+       ORDER BY last_seen_at DESC`
+    ).all(userId, normalizeRequiredText(channel)) as NotificationChannelEndpointRow[];
+  },
+
+  setEndpointEnabled(userId: number, channel: string, endpointId: string, enabled: boolean): boolean {
+    const db = getConnection();
+    const result = db.prepare(
+      `UPDATE notification_channel_endpoints
+       SET enabled = ?, updated_at = CURRENT_TIMESTAMP
+       WHERE user_id = ? AND channel = ? AND endpoint_id = ?`
+    ).run(enabled ? 1 : 0, userId, normalizeRequiredText(channel), normalizeRequiredText(endpointId));
+    return result.changes > 0;
+  },
+
+  touchEndpoint(userId: number, channel: string, endpointId: string): boolean {
+    const db = getConnection();
+    const result = db.prepare(
+      `UPDATE notification_channel_endpoints
+       SET last_seen_at = CURRENT_TIMESTAMP
+       WHERE user_id = ? AND channel = ? AND endpoint_id = ?`
+    ).run(userId, normalizeRequiredText(channel), normalizeRequiredText(endpointId));
+    return result.changes > 0;
+  },
+
+  removeEndpoint(userId: number, channel: string, endpointId: string): boolean {
+    const db = getConnection();
+    const result = db.prepare(
+      'DELETE FROM notification_channel_endpoints WHERE user_id = ? AND channel = ? AND endpoint_id = ?'
+    ).run(userId, normalizeRequiredText(channel), normalizeRequiredText(endpointId));
+    return result.changes > 0;
+  },
+
+  parseMetadata,
+};