/**
 * Request-level product context helpers — delegates to @bytelyst/fastify-auth.
 */
import { createRequestContext } from '@bytelyst/fastify-auth';
import type { FastifyRequest } from 'fastify';
import { randomUUID } from 'node:crypto';
import { PRODUCT_ID } from './product-config.js';

export type { JwtPayload } from '@bytelyst/fastify-auth';

const _ctx = createRequestContext({ productId: PRODUCT_ID });

export function getRequestProductId(req: FastifyRequest): string {
  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument, @typescript-eslint/no-explicit-any
  return _ctx.getRequestProductId(req as any);
}

export function getUserId(req: FastifyRequest): string {
  // eslint-disable-next-line @typescript-eslint/no-unsafe-argument, @typescript-eslint/no-explicit-any
  return _ctx.getUserId(req as any);
}

type RequestIdCarrier = {
  headers: Record<string, string | string[] | undefined>;
  id: string;
};

export function getRequestId(req: RequestIdCarrier): string {
  const header = req.headers['x-request-id'];
  if (Array.isArray(header)) {
    return header[0] ?? req.id;
  }
  return header ?? req.id;
}

export function createOutboundRequestId(): string {
  return randomUUID();
}

export function requestIdHeaders(requestId: string | undefined): Record<string, string> {
  return requestId ? { 'x-request-id': requestId } : {};
}