# All files / src middleware.ts

71.42% Statements 55/77
63.23% Branches 43/68
100% Functions 7/7
71.83% Lines 51/71

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     import { NextResponse } from 'next/server';
    import type { NextRequest } from 'next/server';
    import { ROUTES, STORAGE_KEYS } from '@/constants';

    // Define protected routes and their required roles
    const PROTECTED_ROUTES = {
      [ROUTES.ADMIN.BASE]: ['admin'],
      [ROUTES.ADMIN.USERS]: ['admin'],
      [ROUTES.ADMIN.CONTENT]: ['admin'],
      [ROUTES.ADMIN.CATEGORIES]: ['admin'],
      [ROUTES.ADMIN.SERIES]: ['admin'],
      [ROUTES.ADMIN.ANALYTICS]: ['admin'],
      [ROUTES.RESELLER.BASE]: ['admin', 'reseller'],
      [ROUTES.RESELLER.CUSTOMERS]: ['admin', 'reseller'],
      [ROUTES.RESELLER.CONTENT]: ['admin', 'reseller'],
      [ROUTES.RESELLER.ANALYTICS]: ['admin', 'reseller'],
      [ROUTES.USER.BASE]: ['admin', 'reseller', 'end_user'],
      [ROUTES.USER.CONTENT]: ['admin', 'reseller', 'end_user'],
      [ROUTES.USER.DEVICES]: ['admin', 'reseller', 'end_user'],
      [ROUTES.USER.PROFILE]: ['admin', 'reseller', 'end_user']} as const;

    // Public routes that don't require authentication
    const PUBLIC_ROUTES = [
      ROUTES.HOME,
      ROUTES.LOGIN,
      ROUTES.DEMO,
      ROUTES.REDEEM,
      '/banned', // Allow access to banned page for banned users
      '/forgot-password',
      '/reset-password',
    ];

    function isPublicRoute(pathname: string): boolean {
      return PUBLIC_ROUTES.some((route) => pathname === route || pathname.startsWith(`${route}/`));
    }

    function getRequiredRoles(pathname: string): string[] | null {
      // Check exact match first
      Eif (PROTECTED_ROUTES[pathname as keyof typeof PROTECTED_ROUTES]) {
        return [...PROTECTED_ROUTES[pathname as keyof typeof PROTECTED_ROUTES]];
      }

      // Check if pathname starts with any protected route
      for (const [route, roles] of Object.entries(PROTECTED_ROUTES)) {
        if (pathname.startsWith(route)) {
          return [...roles];
        }
      }

      return null;
    }

    function getUserFromToken(token: string): { role: string } | null {
      try {
        // Decode JWT token payload (works both in edge and node runtimes)
        const base = token.split('.')[1] || '';
        const payloadJson = (() => {
          try {
            // prefer atob if available (edge/browser-like runtimes)
            Eif (typeof atob === 'function') {
              return atob(base);
            }
          } catch {
            // fallthrough
          }
          // Node fallback
          try {
            return Buffer.from(base, 'base64').toString('utf-8');
          } catch {
            return '';
          }
        })();

        if (!payloadJson) return null;
        const payload = JSON.parse(payloadJson || '{}');

        // Normalize role strings into canonical values used by the app
        const rawRole = String(payload.role ?? '').trim();
        const normalized = rawRole.toLowerCase().replace(/[-\s]/g, '_');

        if (normalized === 'admin') return { role: 'admin' };
        Iif (normalized === 'reseller') return { role: 'reseller' };
        Eif (normalized === 'end_user' || normalized === 'enduser' || normalized.includes('user')) return { role: 'end_user' };

        // Fallback: return normalized value
        return { role: normalized };
      } catch {
        return null;
      }
    }

    function getDefaultRouteForRole(role: string): string {
      switch (role) {
        case 'admin':
          return ROUTES.ADMIN.BASE;
        case 'reseller':
          return ROUTES.RESELLER.BASE;
        case 'end_user':
          return ROUTES.USER.BASE;
        default:
          return ROUTES.HOME;
      }
    }

    export function middleware(request: NextRequest) {
      const { pathname } = request.nextUrl;

      Iif (pathname === ROUTES.DEMO || pathname.startsWith(`${ROUTES.DEMO}/`) || pathname === ROUTES.REDEEM || pathname.startsWith(`${ROUTES.REDEEM}/`)) {
        return NextResponse.next();
      }

      // Skip middleware entirely for static builds
      Iif (process.env.NODE_ENV === 'production' && process.env.NEXT_STATIC_EXPORT === 'true') {
        return NextResponse.next();
      }

      // Skip middleware for static files and API routes
      Iif (
        pathname.startsWith('/_next/') ||
        pathname.startsWith('/api/') ||
        pathname.includes('.') // Static files
      ) {
        return NextResponse.next();
      }
      // Get token from cookies or headers
      const token = request.cookies.get(STORAGE_KEYS.AUTH_TOKEN)?.value ||
                    request.headers.get('authorization')?.replace('Bearer ', '');

      // Check if route is public
      if (isPublicRoute(pathname)) {
        // If user is authenticated and trying to access login, redirect to dashboard
        if (token && pathname === ROUTES.LOGIN) {
          const user = getUserFromToken(token);
          Eif (user) {
            const defaultRoute = getDefaultRouteForRole(user.role);
            return NextResponse.redirect(new URL(defaultRoute, request.url));
          }
        }
        return NextResponse.next();
      }

      // Check if route requires authentication
      const requiredRoles = getRequiredRoles(pathname);

      Eif (requiredRoles) {
        // Route requires authentication
        if (!token) {
          // No token, redirect to login
          const loginUrl = new URL(ROUTES.LOGIN, request.url);
          loginUrl.searchParams.set('redirect', pathname);
          return NextResponse.redirect(loginUrl);
        }

        // Verify token and check role
        const user = getUserFromToken(token);
        if (!user) {
          // Invalid token, redirect to login
          const loginUrl = new URL(ROUTES.LOGIN, request.url);
          loginUrl.searchParams.set('redirect', pathname);
          return NextResponse.redirect(loginUrl);
        }

        // Check if user has required role
        Eif (!requiredRoles.includes(user.role)) {
          // User doesn't have required role, redirect to their default dashboard
          const defaultRoute = getDefaultRouteForRole(user.role);
          return NextResponse.redirect(new URL(defaultRoute, request.url));
        }
      }

      // Handle root path redirect for authenticated users
      if (pathname === ROUTES.HOME && token) {
        const user = getUserFromToken(token);
        if (user) {
          const defaultRoute = getDefaultRouteForRole(user.role);
          return NextResponse.redirect(new URL(defaultRoute, request.url));
        }
      }

      return NextResponse.next();
    }

    export const config = {
      matcher: [
        /*
         * Match all request paths except for the ones starting with:
         * - api (API routes)
         * - _next/static (static files)
         * - _next/image (image optimization files)
         * - favicon.ico (favicon file)
         */
        '/((?!api|_next/static|_next/image|favicon.ico).*)',
      ]};