middleware.ts

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

export function middleware(req: NextRequest) {
  const pathname = req.nextUrl.pathname
  if (pathname.startsWith("/api")) return NextResponse.next()

  const sessionToken = req.cookies.get("ai_terminal_session")?.value
  const authed = Boolean(sessionToken)

  const isLogin = pathname === "/login"
  const isProtected = pathname === "/" || pathname.startsWith("/settings") || pathname.startsWith("/admin")

  if (authed && isLogin) {
    return NextResponse.redirect(new URL("/", req.url))
  }

  if (!authed && isProtected) {
    return NextResponse.redirect(new URL("/login", req.url))
  }

  return NextResponse.next()
}

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