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import React, { useEffect, useState } from 'react';
import { useRouter, usePathname } from 'next/navigation';
import { useAuth } from '@/contexts/AuthContext';
import { UserRole } from '@/types';
import { getDefaultRoute, sanitizeRedirectPath } from '@/utils';
import { Card, CardContent, CardDescription, CardHeader, CardTitle } from '@/components/ui/card';
import { Button } from '@/components/ui/button';
import { useTranslation } from 'react-i18next';
import { AlertCircle, Shield, ArrowLeft } from 'lucide-react';
import { deviceService } from '@/services';
import { getOrCreateBrowserDevice } from '@/utils/device';
import { ROUTES } from '@/constants/app';
interface ProtectedRouteProps {
children: React.ReactNode;
requiredRoles?: UserRole[];
fallbackComponent?: React.ComponentType;
showUnauthorized?: boolean;
}
function LoadingSpinner() {
const { t } = useTranslation();
return (
<div className="min-h-screen flex items-center justify-center bg-gray-50">
<div className="text-center">
<div className="animate-spin rounded-full h-16 w-16 border-b-2 border-blue-600 mx-auto mb-4"></div>
<p className="text-gray-600">{t('common.loading')}</p>
</div>
</div>
);
}
function UnauthorizedAccess({ userRole, requiredRoles }: { userRole: UserRole; requiredRoles: UserRole[] }) {
const { t } = useTranslation();
const router = useRouter();
const { logout } = useAuth();
const handleGoToDashboard = () => {
const defaultRoute = getDefaultRoute(userRole);
router.push(defaultRoute);
};
const handleLogout = async () => {
await logout();
};
return (
<div className="min-h-screen flex items-center justify-center bg-gray-50 p-4">
<Card className="max-w-md w-full">
<CardHeader className="text-center">
<div className="mx-auto mb-4 w-12 h-12 bg-red-100 rounded-full flex items-center justify-center">
<Shield className="w-6 h-6 text-red-600" />
</div>
<CardTitle className="text-xl font-semibold text-gray-900">
{t('auth.accessDenied')}
</CardTitle>
<CardDescription>
{t('auth.noPermissionDescription')}
</CardDescription>
</CardHeader>
<CardContent className="space-y-4">
<div className="bg-red-50 border border-red-200 rounded-lg p-4">
<div className="flex items-start">
<AlertCircle className="w-5 h-5 text-red-600 mt-0.5 mr-3 flex-shrink-0" />
<div className="text-sm">
<p className="text-red-800 font-medium">{t('auth.noPermissionTitle')}</p>
<p className="text-red-700 mt-1">
{t('auth.permissionDetail', { role: userRole, required: requiredRoles.join(', ') })}
</p>
</div>
</div>
</div>
<div className="flex flex-col sm:flex-row gap-3">
<Button
onClick={handleGoToDashboard}
className="flex-1"
>
<ArrowLeft className="w-4 h-4 mr-2" />
{t('auth.goToDashboard')}
</Button>
<Button
variant="outline"
onClick={handleLogout}
className="flex-1"
>
{t('common.logout')}
</Button>
</div>
</CardContent>
</Card>
</div>
);
}
export default function ProtectedRoute({
children,
requiredRoles,
fallbackComponent: FallbackComponent,
showUnauthorized = true
}: ProtectedRouteProps) {
const { isAuthenticated, isLoading, user, hasAnyRole } = useAuth();
const router = useRouter();
const pathname = usePathname();
const [hasCheckedAuth, setHasCheckedAuth] = useState(false);
useEffect(() => {
if (!isLoading) {
setHasCheckedAuth(true);
if (!isAuthenticated) {
const safePath = sanitizeRedirectPath(pathname) ?? '/';
const loginUrl = `/login?redirect=${encodeURIComponent(safePath)}`;
router.push(loginUrl);
return;
}
if (requiredRoles && user && !hasAnyRole(requiredRoles)) {
if (!showUnauthorized) {
const defaultRoute = getDefaultRoute(user.role);
router.push(defaultRoute);
}
return;
}
}
}, [isAuthenticated, isLoading, user, hasAnyRole, requiredRoles, router, pathname, showUnauthorized, hasCheckedAuth]);
// Enforce device registration for end users across all protected routes
React.useEffect(() => {
if (!hasCheckedAuth || isLoading) return;
if (!isAuthenticated || !user) return;
// Only for end users
if (user.role !== UserRole.END_USER) return;
const path = pathname || '';
// Allow device page itself
if (path.startsWith(ROUTES.USER.DEVICES)) return;
let mounted = true;
(async () => {
try {
const { id: thisDeviceId } = getOrCreateBrowserDevice();
const res = await deviceService.getUserDevices();
if (!mounted) return;
if (!res.success || !res.data) return;
const devices = res.data.devices || [];
const max = res.data.max_devices ?? user.max_devices ?? 0;
const exists = devices.some((d: any) => d.device_id === thisDeviceId);
if (!exists) {
if (max > 0 && devices.length >= max) {
router.push(`${ROUTES.USER.DEVICES}?onboarding=limit`);
} else {
router.push(`${ROUTES.USER.DEVICES}?onboarding=1`);
}
}
} catch {
// fail-open to avoid breaking navigation if API fails
}
})();
return () => { mounted = false; };
}, [hasCheckedAuth, isLoading, isAuthenticated, user?.role, pathname, router]);
if (isLoading || !hasCheckedAuth) {
return <LoadingSpinner />;
}
if (!isAuthenticated) {
return <LoadingSpinner />;
}
if (requiredRoles && user) {
if (!hasAnyRole(requiredRoles)) {
if (showUnauthorized) {
return <UnauthorizedAccess userRole={user.role} requiredRoles={requiredRoles} />;
} else {
return <LoadingSpinner />;
}
}
}
if (FallbackComponent) {
return <FallbackComponent />;
}
return <>{children}</>;
}
// Higher-order component for easier usage
export function withProtectedRoute<P extends object>(
Component: React.ComponentType<P>,
requiredRoles?: UserRole[],
options?: {
showUnauthorized?: boolean;
fallbackComponent?: React.ComponentType;
}
) {
return function ProtectedComponent(props: P) {
return (
<ProtectedRoute
requiredRoles={requiredRoles}
showUnauthorized={options?.showUnauthorized}
fallbackComponent={options?.fallbackComponent}
>
<Component {...props} />
</ProtectedRoute>
);
};
}
// Specific role-based protection components
export function AdminRoute({ children }: { children: React.ReactNode }) {
return (
<ProtectedRoute requiredRoles={[UserRole.ADMIN]}>
{children}
</ProtectedRoute>
);
}
export function ResellerRoute({ children }: { children: React.ReactNode }) {
return (
<ProtectedRoute requiredRoles={[UserRole.ADMIN, UserRole.RESELLER]}>
{children}
</ProtectedRoute>
);
}
export function UserRoute({ children }: { children: React.ReactNode }) {
return (
<ProtectedRoute requiredRoles={[UserRole.ADMIN, UserRole.RESELLER, UserRole.END_USER]}>
{children}
</ProtectedRoute>
);
}
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