import { GsbPermission, GsbPermissionType } from '../models/gsb-user.model';
/**
 * Service for managing Permissions (Policies) in the application
 */
export declare class PermissionService {
    private entityService;
    private ENTITY_NAME;
    private static instance;
    constructor();
    /**
     * Get the singleton instance of PermissionService
     * @returns The PermissionService instance
     */
    static getInstance(): PermissionService;
    /**
     * Check if the current user is authorized to perform an action on an entity
     * @param entityDef The entity definition name or ID
     * @param permissionType The type of permission to check
     * @param userId Optional user ID to check for (defaults to current user)
     * @returns Promise resolving to a boolean indicating if the user is authorized
     */
    isAuthorized(entityDef: string, permissionType: GsbPermissionType, userId?: string): Promise<boolean>;
    /**
     * Get permission by ID
     * @param id The permission ID
     * @returns The permission or null if not found
     */
    getPermissionById(id: string): Promise<GsbPermission | null>;
    /**
     * Get all permissions with pagination
     * @param page The page number (starting from 1)
     * @param pageSize The number of items per page
     * @returns An array of permissions and the total count
     */
    getPermissions(page?: number, pageSize?: number): Promise<{
        permissions: GsbPermission[];
        totalCount: number;
    }>;
    /**
     * Search for permissions
     * @param searchTerm The search term
     * @param page The page number (starting from 1)
     * @param pageSize The number of items per page
     * @returns An array of permissions and the total count
     */
    searchPermissions(searchTerm: string, page?: number, pageSize?: number): Promise<{
        permissions: GsbPermission[];
        totalCount: number;
    }>;
    /**
     * Create a new permission
     * @param permission The permission to create
     * @returns The created permission ID or null if failed
     */
    createPermission(permission: GsbPermission): Promise<string | null>;
    /**
     * Update an existing permission
     * @param permission The permission to update
     * @returns True if updated successfully, false otherwise
     */
    updatePermission(permission: GsbPermission): Promise<boolean>;
    /**
     * Delete a permission
     * @param id The permission ID to delete
     * @returns True if deleted successfully, false otherwise
     */
    deletePermission(id: string): Promise<boolean>;
    /**
     * Get entity permissions
     * @param entityDefId The entity definition ID or name
     * @returns The entity permissions
     */
    getEntityPermissions(entityDefId: string): Promise<GsbPermission[]>;
    /**
     * Get user permissions
     * @param userId The user ID
     * @returns The user permissions
     */
    getUserPermissions(userId: string): Promise<GsbPermission[]>;
    /**
     * Get user's effective permissions
     * This combines permissions from user directly, roles and groups
     * @param userId The user ID
     * @returns All effective permissions for the user
     */
    getUserEffectivePermissions(userId: string): Promise<GsbPermission[]>;
}