import { BundleContext, ServiceReference, ServiceEvent } from '../api/index.js';
import 'apprt-core/Types';

interface ServiceTrackerCustomizer<ServiceType> {
    adding?(item: ServiceReference): boolean;
    added?(item: {
        ref: ServiceReference;
    }): void;
    removed?(item: {
        ref: ServiceReference;
        service: ServiceType | undefined;
    }): void;
    modified?(item: {
        ref: ServiceReference;
        event: ServiceEvent | undefined;
        service: ServiceType | undefined;
    }): void;
}
interface ServiceTrackerOptions<ServiceType> {
    context: BundleContext;
    customizer?: ServiceTrackerCustomizer<ServiceType>;
    oc?: string;
    filter?: string;
    ref?: ServiceReference;
    sort?: boolean;
}
interface ServiceTracker<ServiceType> {
    isClosed(): boolean;
    open(): void;
    close(): void;
    remove(ref: ServiceReference): void;
    size(): number;
    getTrackingCount(): number;
    getServiceReferences(): readonly ServiceReference[];
    getServiceReference(): ServiceReference | undefined;
    getService(): ServiceType | undefined;
    getService(ref: ServiceReference): ServiceType;
    getServices(): readonly ServiceType[];
}
declare function createServiceTracker<ServiceType>(opts: ServiceTrackerOptions<ServiceType>): ServiceTracker<ServiceType>;

export { createServiceTracker, createServiceTracker as default };
export type { ServiceTracker, ServiceTrackerCustomizer, ServiceTrackerOptions };