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

const CHILD_HOST = "mate"
const PARENT_HOST = "simulacro"

export function middleware(request: NextRequest) {
  const hostname = request.headers.get("host") || ""
  const { pathname } = request.nextUrl

  if (pathname.startsWith("/api") || pathname.startsWith("/_next") || pathname.startsWith("/static") || pathname === "/favicon.ico") {
    return NextResponse.next()
  }

  if (hostname.includes(CHILD_HOST)) {
    if (pathname === "/" || pathname.startsWith("/child")) {
      return NextResponse.next()
    }
    const url = request.nextUrl.clone()
    url.pathname = `/child${pathname === "/" ? "" : pathname}`
    return NextResponse.rewrite(url)
  }

  if (hostname.includes(PARENT_HOST)) {
    if (pathname === "/" || pathname.startsWith("/parent")) {
      return NextResponse.next()
    }
    const url = request.nextUrl.clone()
    url.pathname = `/parent${pathname === "/" ? "" : pathname}`
    return NextResponse.rewrite(url)
  }

  return NextResponse.next()
}

export const config = {
  matcher: ["/((?!_next/static|_next/image|favicon.ico).*)"],
}