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

const AUTH_SESSION_COOKIE = "boss_session";

function hasSessionCookie(request: NextRequest) {
  return Boolean(request.cookies.get(AUTH_SESSION_COOKIE)?.value);
}

function redirectTo(pathname: string, request: NextRequest) {
  return NextResponse.redirect(new URL(pathname, request.url));
}

export function proxy(request: NextRequest) {
  const pathname = request.nextUrl.pathname;
  const authenticated = hasSessionCookie(request);

  if (pathname === "/") {
    return redirectTo(authenticated ? "/conversations" : "/auth/login", request);
  }

  if (
    (pathname === "/auth/login" ||
      pathname === "/auth/register" ||
      pathname === "/auth/forgot-password") &&
    authenticated
  ) {
    return redirectTo("/conversations", request);
  }

  if (
    (pathname.startsWith("/conversations") ||
      pathname.startsWith("/devices") ||
      pathname.startsWith("/me") ||
      pathname.startsWith("/threads")) &&
    !authenticated
  ) {
    return redirectTo("/auth/login", request);
  }

  return NextResponse.next();
}

export const config = {
  matcher: [
    "/",
    "/auth/login",
    "/auth/register",
    "/auth/forgot-password",
    "/conversations/:path*",
    "/devices/:path*",
    "/me/:path*",
    "/threads/:path*",
  ],
};