/**
 * Database Migration Utilities
 *
 * SMI-1446: Handle schema version mismatch during imports
 * SMI-1448: Database merge tooling for combining skill databases
 * SMI-1452: Sync utilities for local-to-Supabase synchronization
 *
 * @see migration-types.ts for type definitions
 */
import type { Database as DatabaseType } from './database-interface.js';
export type { SchemaCompatibility, MergeResult, MergeConflict, MergeStrategy, MergeOptions, SyncStatus, SupabaseSyncConfig, SkillRow, SyncHistoryEntry, } from './migration-types.js';
import type { SchemaCompatibility, MergeResult, MergeOptions, SyncHistoryEntry } from './migration-types.js';
export declare function checkSchemaCompatibility(db: DatabaseType): SchemaCompatibility;
export declare function ensureSchemaCompatibility(db: DatabaseType): void;
export declare function mergeSkillDatabases(target: DatabaseType, source: DatabaseType, options?: MergeOptions): MergeResult;
export declare function getSyncStatus(db: DatabaseType): Omit<{
    connected: boolean;
    lastSyncAt: string | null;
    nextSyncAt: string | null;
    skillsInLocal: number;
    skillsInRemote: number;
    pendingUploads: number;
    pendingDownloads: number;
}, 'connected' | 'skillsInRemote'>;
export declare function updateSyncStatus(db: DatabaseType, result: {
    skillsAdded: number;
    skillsUpdated: number;
    error?: string;
}): void;
export declare function recordSyncRun(db: DatabaseType, status: 'running' | 'success' | 'failed' | 'partial', result?: MergeResult, error?: string): string;
export declare function getSyncHistory(db: DatabaseType, limit?: number): SyncHistoryEntry[];
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