initial commit

Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com>

src/services/audit.ts

@@ -0,0 +1,34 @@
+import { FastifyRequest } from 'fastify';
+import prisma from '../config/database';
+import { AuditAction, EntityType, AuthData } from '../types';
+
+export async function logAudit(params: {
+  request: FastifyRequest;
+  authData?: AuthData | null;
+  action: AuditAction;
+  entityType?: EntityType;
+  entityId?: number;
+  description?: string;
+  oldValues?: Record<string, unknown>;
+  newValues?: Record<string, unknown>;
+}): Promise<void> {
+  try {
+    await prisma.audit_logs.create({
+      data: {
+        user_id: params.authData?.userId ?? null,
+        username: params.authData?.username ?? null,
+        user_ip: params.request.ip,
+        action: params.action,
+        entity_type: params.entityType ?? null,
+        entity_id: params.entityId ?? null,
+        description: params.description ?? null,
+        old_values: params.oldValues ? JSON.stringify(params.oldValues) : null,
+        new_values: params.newValues ? JSON.stringify(params.newValues) : null,
+        user_agent: params.request.headers['user-agent'] ?? null,
+        session_id: null,
+      },
+    });
+  } catch (err) {
+    console.error('Failed to write audit log:', err);
+  }
+}