middleware.js

import cookie from 'cookie';
import { NextResponse } from 'next/server'
import {jwtDecode} from 'jwt-decode';
const secretkey = process.env.SECRET_KEY;

export async function middleware(request) {
  const path = request.nextUrl.pathname;
  const cookies = cookie.parse(request.headers.get('cookie') || '');
  const isAuthenticated = !!cookies.token;
  const token = cookies.token;
  let isAdmin = false;

  if (token) {
    try {
      const decodedToken = jwtDecode(token);
      const admin = decodedToken.isAdmin;
      if (admin) {
        isAdmin = true;
      }
    } catch (error) {
      console.error('Token verification failed:', error);
    }
  }

  if (!isAuthenticated && path === '/user/profile') {
    const loginUrl = new URL('/user/login', request.url);
    loginUrl.searchParams.set('redirectTo', path);
    return NextResponse.redirect(loginUrl);
  }

  if (!isAuthenticated && path === '/cabs/bookcab') {
    const loginUrl = new URL('/user/login', request.url);
    loginUrl.searchParams.set('redirectTo', path);
    return NextResponse.redirect(loginUrl);
  }

  const dynamicRoutePackages = /^\/cabs\/allpackages\/[^\/]+$/;

  if (!isAuthenticated && dynamicRoutePackages.test(path)) {
    const loginUrl = new URL('/user/login', request.url);
    loginUrl.searchParams.set('redirectTo', path);
    return NextResponse.redirect(loginUrl);
  }
  const dynamicRouteCabtypes = /^\/cabs\/cabtypes\/[^\/]+$/;

  if (!isAuthenticated && dynamicRouteCabtypes.test(path)) {
    const loginUrl = new URL('/user/login', request.url);
    loginUrl.searchParams.set('redirectTo', path);
    return NextResponse.redirect(loginUrl);
  }

  const publicPath = path === '/user/login' || path === '/user/signup';
  if (isAuthenticated && publicPath) {
    return NextResponse.redirect(new URL('/', request.nextUrl));
  }

  if (!isAdmin && path === '/admin') {
    return NextResponse.redirect(new URL('/unauthorized', request.nextUrl));
  }

  return NextResponse.next();
}

export const config = {
  matcher: [
    '/',
    '/user/profile',
    '/user/login',
    '/user/signup',
    '/cabs/bookcab',
    '/admin',
    '/cabs/allpackages/:packageid*',
    '/cabs/cabtypes/:cabtypeid*'
  ],
};