/**
 * Log Hub HTTP Server (Singleton)
 *
 * Receives log entries from external programs via HTTP POST.
 * Lazy start — no resources until init() is called.
 *
 * Pattern: Same as progress.ts (module-level singleton).
 */
import { LogBuffer } from './log-buffer.js';
import { PanelStore } from './panel-store.js';
import { ControlStore } from './control-store.js';
import { type SubscriberInfo } from './control-push.js';
import type { LogEntry, LogLevel, LogConfig, LogStats } from './log-types.js';
/**
 * Initialize the Log Hub — start HTTP server and create buffer
 */
export declare function initLogHub(config: LogConfig): Promise<string>;
/**
 * Stop the Log Hub — free all resources
 */
export declare function freeLogHub(): string;
/**
 * Check if Log Hub is running
 */
export declare function isLogHubRunning(): boolean;
/**
 * Get the buffer (for direct queries from MCP tool)
 */
export declare function getLogBuffer(): LogBuffer | null;
/**
 * Get the panel store (for the viewer's snapshot-on-connect)
 */
export declare function getPanelStore(): PanelStore | null;
/**
 * Get the control store (for the viewer's snapshot-on-connect and MCP reads)
 */
export declare function getControlStore(): ControlStore | null;
/**
 * Set ONE control value — the single source of truth for changing a control.
 * BOTH entry points use it: the HTTP route (POST /control, driven by the
 * dashboard) and the MCP tool (aidex_log control_set, driven by the AI). It
 * updates the store, mirrors the value into the widget so every viewer's
 * slider/number reflects it, and broadcasts that widget. Returns false on a
 * bad id/value or when the hub isn't running.
 */
export declare function setControl(id: string, value: number | string): boolean;
/**
 * Register ONE press of a button control: read the counter, add one, store it.
 *
 * Deliberately server-side rather than "the viewer sends the new count". Two
 * browsers can have the same dashboard open; if each computed the next value
 * from its own copy they would both send the same number and one press would
 * vanish. Here the hub owns the counter, so presses from any number of viewers
 * add up. Returns the new count, or null if the id isn't a known button.
 */
export declare function pressButton(id: string): number | null;
/**
 * Read all control values as a flat { id: value } map (for the MCP tool).
 */
export declare function getControlValues(): Record<string, number | string>;
/**
 * Current push subscriptions (for status display).
 */
export declare function getControlSubscribers(): SubscriberInfo[];
/**
 * Get config (for status display)
 */
export declare function getLogConfig(): LogConfig | null;
/**
 * Write an entry from MCP (source: "claude")
 */
export declare function writeLogEntry(level: LogLevel, message: string, data?: string): LogEntry | null;
/**
 * Get full stats including port and persist info
 */
export declare function getLogStats(): LogStats | null;
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