import { CanActivateFn } from '@angular/router';
/**
 * Route guard for protecting routes based on entitlements
 *
 * This guard checks if a customer has access to a specific entitlement before
 * allowing navigation to a route. Supports all entitlement types.
 *
 * @example
 * ```typescript
 * // In routes configuration
 * import { Routes } from '@angular/router';
 * import { entitlementGuard } from '@subtrak/angular';
 *
 * export const routes: Routes = [
 *   // BOOLEAN entitlement (feature flag)
 *   {
 *     path: 'analytics',
 *     component: AnalyticsComponent,
 *     canActivate: [entitlementGuard],
 *     data: {
 *       entitlement: 'premium_analytics',
 *       type: 'BOOLEAN',
 *       redirectTo: '/upgrade'
 *     }
 *   },
 *
 *   // NUMERIC entitlement (quota check)
 *   {
 *     path: 'projects/create',
 *     component: CreateProjectComponent,
 *     canActivate: [entitlementGuard],
 *     data: {
 *       entitlement: 'max_projects',
 *       type: 'NUMERIC',
 *       checkLimit: true,
 *       getCurrentValue: () => inject(ProjectService).getCount(),
 *       redirectTo: '/upgrade'
 *     }
 *   },
 *
 *   // ENUM entitlement (value check)
 *   {
 *     path: 'priority-support',
 *     component: PrioritySupportComponent,
 *     canActivate: [entitlementGuard],
 *     data: {
 *       entitlement: 'support_level',
 *       type: 'ENUM',
 *       requiredValue: 'priority',
 *       redirectTo: '/upgrade'
 *     }
 *   }
 * ];
 * ```
 */
export declare const entitlementGuard: CanActivateFn;