/**
 * Syslog TCP push worker — streams structured log entries to a remote
 * syslog receiver (Graylog) over a persistent TCP connection.
 *
 * Uses RFC 5424 syslog format with structured data to carry DKG-specific
 * fields (operation_id, operation_name, module, network, node_name).
 * Reconnects automatically on connection loss.
 *
 * TODO: upgrade to TLS (RFC 5425) once the Graylog Syslog input is
 * reconfigured as a "Syslog TLS" input with the domain certificate.
 */
export interface LogPushWorkerOptions {
    /** Syslog host, e.g. loggly.origin-trail.network */
    host: string;
    /** Syslog TCP port, e.g. 614 */
    port: number;
    /** Node's libp2p peer ID */
    peerId: string;
    /** Network identifier: 'testnet' or 'mainnet' */
    network: string;
    /** Node name from config */
    nodeName?: string;
    /** Semver version from package.json, e.g. "9.0.0-beta.2" */
    version?: string;
    /** Short git commit SHA of the running code, e.g. "a1b2c3d8" */
    commit?: string;
    /** Node role: "core" or "edge" */
    role?: string;
    /** Whether auto-update is enabled */
    autoUpdate?: boolean;
    /** Dynamic getter returning version status: latest | updating | behind | disabled | unknown */
    versionStatus?: () => string;
}
interface LogEntry {
    level: string;
    operationName: string;
    operationId: string;
    module: string;
    message: string;
}
export declare class LogPushWorker {
    private buffer;
    private socket;
    private timer;
    private reconnectTimer;
    private connected;
    private stopped;
    private readonly host;
    private readonly port;
    private readonly peerId;
    private readonly network;
    private readonly nodeName;
    private readonly version;
    private readonly commit;
    private readonly role;
    private readonly autoUpdate;
    private readonly versionStatus;
    constructor(opts: LogPushWorkerOptions);
    push(entry: LogEntry): void;
    start(): void;
    stop(): void;
    private connect;
    private scheduleReconnect;
    private flush;
}
export {};
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