/*---------------------------------------------------------------------------------------------
 *  Copyright (c) Microsoft Corporation. All rights reserved.
 *  Licensed under the MIT License. See License.txt in the project root for license information.
 *--------------------------------------------------------------------------------------------*/

import { Event } from '@sussudio/base/common/event.mjs';
import { IEnvironmentMainService } from '../../environment/electron-main/environmentMainService.mjs';
import { ILifecycleMainService } from '../../lifecycle/electron-main/lifecycleMainService.mjs';
import { ILogService } from '../../log/common/log.mjs';
import { ITelemetryService } from '../../telemetry/common/telemetry.mjs';
import { AvailableForDownload, IUpdateService, State, UpdateType } from '../common/update.mjs';
declare abstract class AbstractUpdateService implements IUpdateService {
	private readonly lifecycleMainService;
	protected logService: ILogService;
	readonly _serviceBrand: undefined;
	private _state;
	private readonly _onStateChange;
	readonly onStateChange: Event<State>;
	get state(): State;
	protected setState(state: State): void;
	constructor(
		lifecycleMainService: ILifecycleMainService,
		environmentMainService: IEnvironmentMainService,
		logService: ILogService,
	);
	private scheduleCheckForUpdates;
	checkForUpdates(explicit: boolean): Promise<void>;
	downloadUpdate(): Promise<void>;
	protected doDownloadUpdate(state: AvailableForDownload): Promise<void>;
	applyUpdate(): Promise<void>;
	protected doApplyUpdate(): Promise<void>;
	quitAndInstall(): Promise<void>;
	protected getUpdateType(): UpdateType;
	protected doQuitAndInstall(): void;
	abstract isLatestVersion(): Promise<boolean | undefined>;
	_applySpecificUpdate(packagePath: string): Promise<void>;
	protected abstract doCheckForUpdates(context: any): void;
}
export declare class SnapUpdateService extends AbstractUpdateService {
	private snap;
	private snapRevision;
	private readonly telemetryService;
	constructor(
		snap: string,
		snapRevision: string,
		lifecycleMainService: ILifecycleMainService,
		environmentMainService: IEnvironmentMainService,
		logService: ILogService,
		telemetryService: ITelemetryService,
	);
	protected doCheckForUpdates(): void;
	protected doQuitAndInstall(): void;
	private isUpdateAvailable;
	isLatestVersion(): Promise<boolean | undefined>;
}
export {};