import { CanActivateFn } from '@angular/router';
import { FetchClient, IManagedObject } from '@c8y/client';
import { ServiceRegistry } from '@c8y/ngx-components';
import { Observable } from 'rxjs';
import { RemoteAccessProtocolProvider } from './remote-access-protocol-provider';
import * as i0 from "@angular/core";
export interface RemoteAccessConfiguration {
    id: string;
    name: string;
    hostname: string;
    port: number;
    protocol: string;
    attrs?: any;
    credentials?: any;
    credentialsType?: string;
}
export declare const CREDENTIALS_TYPES: {
    readonly NONE: {
        readonly name: "NONE";
        readonly value: "NONE";
        readonly label: "No password";
    };
    readonly USER_PASS: {
        readonly name: "USER_PASS";
        readonly value: "USER_PASS";
        readonly label: "Username and password";
    };
    readonly PASS_ONLY: {
        readonly name: "PASS_ONLY";
        readonly value: "PASS_ONLY";
        readonly label: "Password only";
    };
    readonly KEY_PAIR: {
        readonly name: "KEY_PAIR";
        readonly value: "KEY_PAIR";
        readonly label: "Public/private keys";
    };
    readonly CERTIFICATE: {
        readonly name: "CERTIFICATE";
        readonly value: "CERTIFICATE";
        readonly label: "Certificate";
    };
};
export declare const canActivateRemoteAccess: CanActivateFn;
export declare class RemoteAccessService {
    private fetchClient;
    private serviceRegistry;
    private cachedIsAvailable$;
    readonly baseUrl = "/service/remoteaccess";
    constructor(fetchClient: FetchClient, serviceRegistry: ServiceRegistry);
    /**
     * Verifies if the remote access service is available by sending a HEAD request to is's health endpoint.
     * @returns cached Observable that emits true if the service is available, false otherwise.
     */
    isAvailable$(): Observable<boolean>;
    /**
     * misses the leading ? for the query params
     */
    getAuthQueryParamsForWebsocketConnection(): string;
    /**
     * Returns the URI for the websocket connection to the remote access service.
     */
    getWebSocketUri<K extends string, I extends string>(deviceId: K, configurationId: I): `ws://${string}/service/remoteaccess/client/${K}/configurations/${I}` | `wss://${string}/service/remoteaccess/client/${K}/configurations/${I}` | `ws://${string}/service/remoteaccess/client/${K}/configurations/${I}?${string}` | `wss://${string}/service/remoteaccess/client/${K}/configurations/${I}?${string}`;
    /**
     * Retrieves all configurations for a given device.
     */
    listConfigurations(deviceId: string): Promise<RemoteAccessConfiguration[]>;
    /**
     * Deletes a configuration for a given device.
     */
    deleteConfiguration(deviceId: string, configurationId: string): Promise<void>;
    /**
     * Retrieves all available remote access protocol providers.
     */
    getProtocolProviders(): RemoteAccessProtocolProvider[];
    /**
     * Retrieves all supported protocol providers for a given device.
     * Based on the declarations in the fragment c8y_RemoteAccessSupportedProtocols of the device managed object.
     */
    getSupportedProtocolProvidersFor(device: IManagedObject): RemoteAccessProtocolProvider[];
    /**
     * Creates a new configuration for a given device.
     */
    addConfiguration(deviceId: string, configuration: Omit<RemoteAccessConfiguration, 'id'>): Promise<RemoteAccessConfiguration>;
    /**
     * Updates a configuration for a given device.
     */
    updateConfiguration(deviceId: string, configuration: RemoteAccessConfiguration): Promise<RemoteAccessConfiguration>;
    /**
     * Generates a SSH key pair for a given hostname.
     */
    generateKeyPair(hostname: string): Promise<{
        publicKey: string;
        privateKey: string;
    }>;
    private healthEndpointAvailable;
    static ɵfac: i0.ɵɵFactoryDeclaration<RemoteAccessService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<RemoteAccessService>;
}
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