proxy.ts

import { createServerClient } from "@supabase/ssr"
import { NextResponse, type NextRequest } from "next/server"

export async function proxy(request: NextRequest) {
  let response = NextResponse.next({
    request,
  })

  const supabase = createServerClient(
    process.env.NEXT_PUBLIC_SUPABASE_URL!,
    process.env.NEXT_PUBLIC_SUPABASE_ANON_KEY!,
    {
      cookies: {
        getAll() {
          return request.cookies.getAll()
        },
        setAll(cookiesToSet) {
          cookiesToSet.forEach(({ name, value }) =>
            request.cookies.set(name, value)
          )

          response = NextResponse.next({
            request,
          })

          cookiesToSet.forEach(({ name, value, options }) =>
            response.cookies.set(name, value, options)
          )
        },
      },
    }
  )

  const {
    data: { user },
  } = await supabase.auth.getUser()

  const pathname = request.nextUrl.pathname

  // Prevent logged-in users from visiting auth pages
  if (user && (pathname === "/login" || pathname === "/signup")) {
    return NextResponse.redirect(new URL("/", request.url))
  }

  // Protect dashboard routes
  const isProtectedRoute =
    pathname.startsWith("/tutor") || pathname.startsWith("/student")

  if (!user && isProtectedRoute) {
    return NextResponse.redirect(new URL("/login", request.url))
  }

  return response
}

export const config = {
  matcher: ["/login", "/signup", "/tutor/:path*", "/student/:path*"],
}