import { FeatureInfo, SKVersion } from '@signalk/server-api';
import { FullSignalK } from '@signalk/signalk-schema';
import { EventEmitter } from 'node:events';
import { Config } from './config/config';
import DeltaCache from './deltacache';
export interface ServerApp {
    started: boolean;
    interfaces: {
        [key: string]: any;
    };
    intervals: NodeJS.Timeout[];
    providers: any[];
    server: any;
    redirectServer?: any;
    deltaCache: DeltaCache;
    getProviderStatus: () => any;
    lastServerEvents: {
        [key: string]: any;
    };
    clients: number;
}
export interface SignalKMessageHub extends EventEmitter {
    signalk: FullSignalK;
    handleMessage: (id: string, Delta: any, skVersion?: SKVersion) => void;
}
export interface WithConfig {
    config: Config;
}
export interface SelfIdentity {
    selfType: string;
    selfId: string;
    selfContext: string;
}
export interface WithFeatures {
    getFeatures: (enabledOnly?: boolean) => FeatureInfo;
}