'use client';

import Link from 'next/link';
import { Boxes, Settings2, ShieldCheck, Users } from 'lucide-react';
import { cn } from '@/lib/utils';
import { PublicUser } from '@/lib/api';

const links = [
  { href: '/admin/users', label: 'Пользователи', icon: Users, permission: 'canViewUsers' as const, altPermission: 'canManageUsers' as const },
  { href: '/admin/oauth', label: 'OAuth', icon: Boxes, permission: 'canManageOAuth' as const },
  { href: '/admin/rbac', label: 'Роли', icon: ShieldCheck, permission: 'canManageRoles' as const, superAdminOnly: true },
  { href: '/admin/settings', label: 'Настройки', icon: Settings2, permission: 'canManageSettings' as const }
];

export function AdminNav({ active, user }: { active: string; user: PublicUser }) {
  const visible = links.filter((link) => {
    if (link.superAdminOnly && !user.canManageRoles) return false;
    return Boolean(user[link.permission]) || (link.altPermission ? Boolean(user[link.altPermission]) : false) || user.isSuperAdmin;
  });

  return (
    <nav className="mb-8 flex flex-wrap gap-2">
      {visible.map((link) => {
        const isActive = active === link.href;
        return (
          <Link
            key={link.href}
            href={link.href}
            className={cn(
              'inline-flex items-center gap-2 rounded-full px-4 py-2 text-sm font-medium transition-colors',
              isActive ? 'bg-black !text-white shadow-sm' : 'bg-[#f4f5f8] text-[#1f2430] hover:bg-[#eceef4]'
            )}
          >
            <link.icon className={cn('h-4 w-4', isActive ? '!text-white' : 'text-current')} />
            <span className={isActive ? '!text-white' : undefined}>{link.label}</span>
          </Link>
        );
      })}
    </nav>
  );
}
