import {
  type NextMiddleware,
  type NextRequest,
  NextResponse,
} from "next/server"

import type { MiddlewareMatcher } from "./types"

export const middleware: NextMiddleware = async (req) => {
  const redirectUrl = loginRequiredRedirect(req)
  if (redirectUrl) {
    return NextResponse.redirect(redirectUrl)
  }
}

function loginRequiredRedirect(req: NextRequest) {
  if (req.nextUrl.searchParams.get("error") === "login_required") {
    return (
      req.cookies.get("next-auth.callback-url")?.value || req.nextUrl.origin
    )
  }
  return undefined
}

export const matcher: MiddlewareMatcher = (request) => {
  return request.nextUrl.pathname === "/api/web/auth/callback/sas"
}