import { default as Database } from 'better-sqlite3';
import { AuditLogEntry } from './types.js';
/**
 * Manages audit log entries for metadata changes
 */
export declare class AuditManager {
    private db;
    constructor(db: Database.Database);
    /**
     * Log a metadata field change
     */
    logChange(field: string, oldValue: unknown, newValue: unknown): void;
    /**
     * Log multiple field changes at once
     */
    logChanges(changes: Array<{
        field: string;
        oldValue: unknown;
        newValue: unknown;
    }>): void;
    /**
     * Get the full audit trail
     */
    getAuditTrail(): AuditLogEntry[];
    /**
     * Get audit trail for a specific field
     */
    getFieldHistory(field: string): AuditLogEntry[];
    /**
     * Get audit entries since a specific date
     */
    getAuditSince(since: Date): AuditLogEntry[];
    /**
     * Get the count of audit entries
     */
    getAuditCount(): number;
}
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