/**
 * Universal PostgreSQL Adapter for RevealUI admin
 *
 * Supports multiple PostgreSQL providers:
 * - Neon Database (https://neon.tech)
 * - Supabase (https://supabase.com)
 * - Vercel Postgres (https://vercel.com/storage/postgres)
 *
 * Automatically detects the provider based on connection string or environment.
 *
 * WARNING: This module uses Node.js-specific database drivers.
 * Do NOT import in client-side code or edge runtime.
 */
import type { DatabaseAdapter } from '../types/index.js';
export interface UniversalPostgresAdapterConfig {
    /**
     * Connection string for the database
     * Examples:
     * - Neon: postgresql://user:pass@ep-xxx.us-east-1.aws.neon.tech/dbname?sslmode=require
     * - Supabase: postgresql://postgres:pass@db.xxx.supabase.co:5432/postgres
     * - Vercel: postgres://user:pass@host:5432/dbname
     */
    connectionString?: string;
    /**
     * Environment variable name for connection string
     * Defaults to checking: DATABASE_URL, POSTGRES_URL, SUPABASE_DATABASE_URI
     */
    envVar?: string;
    /**
     * Force a specific provider (optional, auto-detected if not provided)
     */
    provider?: 'neon' | 'supabase' | 'electric';
    /**
     * Shared pg Pool instance. When provided, the adapter uses this pool
     * instead of creating its own. This eliminates dual-pool issues where
     * the CMS adapter and the Drizzle ORM client create separate connections
     * to the same database. Pass the same pool to both systems.
     */
    pool?: import('pg').Pool;
    /**
     * Async factory that returns a shared pg Pool. Called once during
     * initializeConnection. Use this instead of `pool` when the pool
     * source can't be imported at the top level (e.g., Turbopack async
     * module init issues in Next.js).
     */
    poolFactory?: () => Promise<import('pg').Pool | null>;
}
/**
 * Creates a universal PostgreSQL adapter that works with Neon, Supabase, and Electric Postgres
 */
export declare function universalPostgresAdapter(config?: UniversalPostgresAdapterConfig): DatabaseAdapter;
/**
 * Clear all worker-specific PGlite instances and state (useful for test cleanup)
 * Only affects electric provider
 * Can optionally clear just the current worker or all workers
 */
export declare function clearGlobalPGlite(clearAllWorkers?: boolean): void;
export default universalPostgresAdapter;
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