import type { KythiaConfig as IKythiaConfig, KythiaLogger } from '../types';
import type { Client } from 'discord.js';
interface EngineOptions {
    botClient: Client;
    licenseKey: string;
    botVersion: string;
    bootSalt: number;
    logger: KythiaLogger;
    version: string;
    config: IKythiaConfig;
}
export declare class KythiaEngine {
    private k;
    private l;
    private v;
    private c;
    private _botClient;
    private q;
    private nf;
    private nSub;
    private _lastPulseAt;
    private readonly MNF;
    private readonly MSUB;
    private hi;
    private fi;
    private _fh;
    private readonly _httpsAgent;
    private _lastFlushAt;
    private readonly _MIN_FLUSH_INTERVAL_MS;
    private readonly _e;
    private readonly _t;
    private readonly _a;
    private readonly _h;
    private _ot;
    private _ts;
    private readonly TV;
    private _owner;
    private _boundClientId;
    private _portalUrl;
    private _st;
    private _sn;
    private readonly _sid;
    private readonly _PK;
    private _glPath;
    private get _ep();
    private get _tp();
    private get _ap();
    private get _hp();
    private _verifyCertificate;
    private _saveGraceLease;
    private _loadGraceLease;
    private _sendHeartbeat;
    private _validateHeartbeat;
    constructor(options: EngineOptions);
    private _req;
    private _sSpec;
    private _sanitizeConfig;
    private _updateStateManifest;
    checkOptimizationStatus(): Promise<'OPTIMAL' | 'SUBOPTIMAL' | 'NET_ERR' | 'SRV_ERR'>;
    ignite(): Promise<string | null>;
    private _genOptToken;
    isOptimal(): boolean;
    getOptimizationToken(): string | null;
    getLastPulseAt(): number;
    getKey(): string;
    getOwner(): string | null;
    getServiceType(): string;
    getServiceName(): string;
    getBoundClientId(): string | null;
    getPortalUrl(): string | null;
    fetchAnnouncement(): Promise<{
        id: number;
        title: string;
        message: string;
        type: string;
        send_dm_to_owner: boolean;
        expires_at: string | null;
    }[] | null>;
    private _criticalFailure;
    report(level: 'info' | 'warn' | 'error', message: string, metadata?: Record<string, unknown>): void;
    flush(): Promise<void>;
    startAutoOptimization(): void;
    stopAutoOptimization(): void;
    startPulse(): void;
}
export {};
//# sourceMappingURL=KythiaEngine.d.ts.map