/**
 * Data Migration System for Atlas
 *
 * Handles migration from pre-SQLite JSON-based data to SQLite database
 * Ensures data integrity and provides rollback capabilities
 */
export interface MigrationResult {
    success: boolean;
    migratedFiles: string[];
    errors: string[];
    backupPath?: string;
    summary: {
        epics: number;
        stories: number;
        sprints: number;
        other: number;
    };
}
export interface LegacyEpic {
    id: string;
    title: string;
    description: string;
    status: string;
    priority: string;
    goals: string[];
    createdAt: string;
    updatedAt: string;
    storyIds: string[];
    stories: any[];
    progress: number;
}
export interface LegacyStory {
    id: string;
    title: string;
    description: string;
    status: string;
    priority: string;
    storyPoints?: number;
    epicId?: string;
    sprintId?: string;
    acceptanceCriteria?: any[];
    assignee?: string;
    createdAt: string;
    updatedAt: string;
    tags?: string[];
}
export interface LegacySprint {
    id: string;
    name: string;
    goal: string;
    status: string;
    startDate: string;
    endDate: string;
    capacity?: number;
    storyIds: string[];
    createdAt: string;
    updatedAt: string;
}
export declare class DataMigrationManager {
    private atlasDir;
    private dataDir;
    private backupDir;
    constructor();
    /**
     * Check if legacy data exists that needs migration
     */
    detectLegacyData(): Promise<boolean>;
    /**
     * Create backup of existing data before migration
     */
    createBackup(): Promise<string>;
    /**
     * Migrate all legacy data to SQLite
     */
    migrateData(): Promise<MigrationResult>;
    /**
     * Migrate agile data (epics, stories, sprints)
     */
    private migrateAgileData;
    /**
     * Migrate other data modules (workspace, business, etc.)
     */
    private migrateOtherData;
    /**
     * Archive migrated files (move to archive directory)
     */
    archiveMigratedFiles(migratedFiles: string[]): Promise<void>;
    /**
     * Read and parse JSON file
     */
    private readJsonFile;
    /**
     * Copy directory recursively
     */
    private copyDirectory;
}
/**
 * Auto-migrate data on server startup if needed
 */
export declare function autoMigrateOnStartup(): Promise<void>;
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