import type { Request, Response, NextFunction } from 'express'

declare module 'express-session' {
  interface SessionData {
    userId?: string
  }
}

export function requireAuth(req: Request, res: Response, next: NextFunction): void {
  if (req.session?.userId) {
    next()
    return
  }
  if (req.method === 'GET') {
    res.redirect('/op')
    return
  }
  res.status(401).json({ ok: false, message: '인증이 필요합니다.' })
}