/**
 * [WHO]: AuditLogger
 * [FROM]: Depends on node:fs, node:path, node:crypto, ../../../../config.js
 * [TO]: Consumed by extension entry point (./index.ts)
 * [HERE]: extensions/builtin/security-audit/engine/logger.ts -
 */
import type { AuditEvent, LogQueryOptions, SecurityStats } from "../interface.js";
import { AgentDirContext } from "../../../../core/agent-dir/agent-dir-context.js";
/**
 * Audit Logger class
 */
export declare class AuditLogger {
    private logs;
    private maxEntries;
    private ctx;
    /**
     * @param maxEntries Maximum number of entries to keep
     * @param ctx Agent directory context.
     */
    constructor(maxEntries?: number, ctx?: AgentDirContext);
    /**
     * Get audit log file path
     */
    private getLogPath;
    /**
     * Ensure log directory exists
     */
    private ensureLogDir;
    /**
     * Load logs from disk
     */
    load(): void;
    /**
     * Save logs to file
     */
    private saveLogs;
    /**
     * Record an audit event
     */
    log(event: Omit<AuditEvent, "id" | "timestamp">): AuditEvent;
    /**
     * Query logs with filters
     */
    query(options?: LogQueryOptions): AuditEvent[];
    /**
     * Get statistics
     */
    getStats(options?: LogQueryOptions): SecurityStats;
    /**
     * Clear all logs
     */
    clear(): void;
    /**
     * Export logs as JSON
     */
    exportJson(): string;
    /**
     * Export logs as HTML
     */
    exportHtml(): string;
    /**
     * Get total log count
     */
    getCount(): number;
}