import type { RequestHandler } from 'express';

/**
 * DI token for the configured `express-session` middleware. Resolved
 * once at bootstrap (`main.ts`) and mounted with `app.use(...)`
 * after `cookie-parser` so cookies are already parsed when the
 * session middleware reads the session id.
 *
 * Usage:
 *   const session = app.get<RequestHandler>(SESSION_MIDDLEWARE);
 *   app.use(session);
 */
export const SESSION_MIDDLEWARE = 'SESSION_MIDDLEWARE';

/**
 * DI token for the absolute-timeout middleware (per ADR-0010 §"TTL
 * policy"). Resolved at bootstrap and mounted in `main.ts`
 * immediately after {@link SESSION_MIDDLEWARE} so it runs on every
 * request that carries a session cookie.
 */
export const SESSION_ABSOLUTE_TIMEOUT_MIDDLEWARE = 'SESSION_ABSOLUTE_TIMEOUT_MIDDLEWARE';

export type { RequestHandler };