/**
 * BackupManager - Create and manage backups before deletion operations
 * Exports affected data to JSON for potential restoration
 */
import type Database from "better-sqlite3";
/**
 * Backup metadata
 */
export interface BackupMetadata {
    timestamp: number;
    description: string;
    projectPath: string;
    tables: string[];
    recordCounts: Record<string, number>;
    backupPath: string;
}
/**
 * Backup data structure
 */
export interface BackupData {
    metadata: BackupMetadata;
    data: Record<string, unknown[]>;
}
/**
 * BackupManager class
 */
export declare class BackupManager {
    private db;
    constructor(db: Database.Database);
    /**
     * Create a backup of specific conversations and related data
     */
    createBackupForConversations(conversationIds: string[], description: string, projectPath: string): BackupMetadata;
    /**
     * Get backup directory for project
     */
    private getBackupDirectory;
    /**
     * Ensure directory exists
     */
    private ensureDirectoryExists;
    /**
     * Query helpers for each table
     */
    private getConversations;
    private getMessages;
    private getToolUses;
    private getToolResults;
    private getFileEdits;
    private getThinkingBlocks;
    private getDecisions;
    private getMistakes;
    private getRequirements;
    private getValidations;
    private getMessageEmbeddings;
    private getDecisionEmbeddings;
}
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