/**
 * Project Migration Utility
 * Handles migration of conversation history when project directories are renamed
 */
import { type SQLiteManager } from "../storage/SQLiteManager.js";
export interface OldFolder {
    folderPath: string;
    folderName: string;
    storedProjectPath: string | null;
    stats: {
        conversations: number;
        messages: number;
        lastActivity: number | null;
    };
    score: number;
}
export interface ValidationResult {
    valid: boolean;
    errors: string[];
    stats?: {
        conversations: number;
        messages: number;
        files: number;
    };
}
export interface MigrationResult {
    success: boolean;
    filesCopied: number;
    databaseUpdated: boolean;
    message: string;
}
interface ScoreFactors {
    pathScore: number;
    folderScore: number;
    hasDatabase: boolean;
    jsonlCount: number;
}
export declare class ProjectMigration {
    private projectsDir;
    private sqliteManager;
    private db;
    constructor(sqliteManager?: SQLiteManager, projectsDir?: string);
    private buildFolderCandidates;
    private selectBestCandidate;
    private getProjectStats;
    private resolveProjectId;
    /**
     * Get the projects directory (for use by other classes)
     */
    getProjectsDir(): string;
    /**
     * Discover old conversation folders using combined approach
     */
    discoverOldFolders(currentProjectPath: string): Promise<OldFolder[]>;
    /**
     * Validate migration is safe and possible
     */
    validateMigration(sourceFolder: string, targetFolder: string, mode?: "migrate" | "merge"): ValidationResult;
    /**
     * Execute migration (copy files and update database)
     */
    executeMigration(sourceFolder: string, targetFolder: string, oldProjectPath: string, newProjectPath: string, dryRun: boolean, mode?: "migrate" | "merge"): Promise<MigrationResult>;
    private copyAllJsonlFiles;
    private copyNewJsonlFiles;
    private backupDatabase;
    private updateProjectReferences;
    /**
     * Score path similarity
     */
    scorePath(currentPath: string, oldPath: string): number;
    /**
     * Score folder name similarity
     */
    scoreFolderName(expected: string, actual: string): number;
    /**
     * Calculate overall score from multiple factors
     */
    calculateOverallScore(factors: ScoreFactors): number;
}
export {};
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