/**
 * @license
 * Copyright Mauricio Gemelli Vigolo All Rights Reserved.
 *
 * Use of this source code is governed by a MIT-style license that can be
 * found in the LICENSE file at https://github.com/mauriciovigolo/keycloak-angular/blob/main/LICENSE.md
 */
import { TemplateRef, ViewContainerRef } from '@angular/core';
import Keycloak from 'keycloak-js';
import * as i0 from "@angular/core";
/**
 * Structural directive to conditionally display elements based on Keycloak user roles.
 *
 * This directive checks if the authenticated user has at least one of the specified roles.
 * Roles can be validated against a specific **resource (client ID)** or the **realm**.
 *
 * ### Features:
 * - Supports role checking in both **resources (client-level roles)** and the **realm**.
 * - Accepts an array of roles to match.
 * - Optional configuration to check realm-level roles.
 *
 * ### Inputs:
 * - `kaHasRoles` (Required): Array of roles to validate.
 * - `resource` (Optional): The client ID or resource name to validate resource-level roles.
 * - `checkRealm` (Optional): A boolean flag to enable realm role validation (default is `false`).
 *
 * ### Requirements:
 * - A Keycloak instance must be injected via Angular's dependency injection.
 * - The user must be authenticated in Keycloak.
 *
 * @example
 * #### Example 1: Check for Global Realm Roles
 * Show the content only if the user has the `admin` or `editor` role in the realm.
 * ```html
 * <div *kaHasRoles="['admin', 'editor']; checkRealm:true">
 *   <p>This content is visible only to users with 'admin' or 'editor' realm roles.</p>
 * </div>
 * ```
 *
 * @example
 * #### Example 2: Check for Resource Roles
 * Show the content only if the user has the `read` or `write` role for a specific resource (`my-client`).
 * ```html
 * <div *kaHasRoles="['read', 'write']; resource:'my-client'">
 *   <p>This content is visible only to users with 'read' or 'write' roles for 'my-client'.</p>
 * </div>
 * ```
 *
 * @example
 * #### Example 3: Check for Both Resource and Realm Roles
 * Show the content if the user has the roles in either the realm or a resource.
 * ```html
 * <div *kaHasRoles="['admin', 'write']; resource:'my-client' checkRealm:true">
 *   <p>This content is visible to users with 'admin' in the realm or 'write' in 'my-client'.</p>
 * </div>
 * ```
 *
 * @example
 * #### Example 4: Fallback Content When Roles Do Not Match
 * Use an `<ng-template>` to display fallback content if the user lacks the required roles.
 * ```html
 * <div *kaHasRoles="['admin']; resource:'my-client'">
 *   <p>Welcome, Admin!</p>
 * </div>
 * <ng-template #noAccess>
 *   <p>Access Denied</p>
 * </ng-template>
 * ```
 */
export declare class HasRolesDirective {
    private templateRef;
    private viewContainer;
    private keycloak;
    /**
     * List of roles to validate against the resource or realm.
     */
    roles: string[];
    /**
     * The resource (client ID) to validate roles against.
     */
    resource?: string;
    /**
     * Flag to enable realm-level role validation.
     */
    checkRealm: boolean;
    constructor(templateRef: TemplateRef<unknown>, viewContainer: ViewContainerRef, keycloak: Keycloak);
    private render;
    /**
     * Checks if the user has at least one of the specified roles in the resource or realm.
     * @returns True if the user has access, false otherwise.
     */
    private checkUserRoles;
    static ɵfac: i0.ɵɵFactoryDeclaration<HasRolesDirective, never>;
    static ɵdir: i0.ɵɵDirectiveDeclaration<HasRolesDirective, "[kaHasRoles]", never, { "roles": { "alias": "kaHasRoles"; "required": false; }; "resource": { "alias": "kaHasRolesResource"; "required": false; }; "checkRealm": { "alias": "kaHasRolesCheckRealm"; "required": false; }; }, {}, never, never, true, never>;
}