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);
  }
}