import type { SqlClient, SetupOptions, PgFileSystemOptions } from "../../core/types.js";
import { PgFileSystem as CorePgFileSystem } from "../../core/filesystem.js";
export { FsQuotaError } from "../../core/types.js";
export type { VersionDiffCountOptions, VersionDiffOptions, VersionDiffStreamOptions, WorkspaceUsage, WorkspaceUsageOptions, } from "../../core/types.js";
/**
 * Structural interface matching `pg.PoolClient`.
 * Keeps `pg` as a peer dep: no direct import required.
 */
export interface NodePgPoolClient {
    query(text: string, values?: unknown[]): Promise<{
        rows: Record<string, unknown>[];
        rowCount: number | null;
    }>;
    release(err?: Error | boolean): void;
}
/**
 * Structural interface matching `pg.Pool`.
 */
export interface NodePgPool {
    query(text: string, values?: unknown[]): Promise<{
        rows: Record<string, unknown>[];
        rowCount: number | null;
    }>;
    connect(): Promise<NodePgPoolClient>;
}
/**
 * Creates a SqlClient backed by a node-postgres Pool.
 *
 * @example
 * ```ts
 * import pg from "pg";
 * import { createNodePgClient } from "bash-gres/node-postgres";
 *
 * const pool = new pg.Pool({ connectionString: "postgres://localhost:5432/mydb" });
 * const client = createNodePgClient(pool);
 * ```
 */
export declare function createNodePgClient(pool: NodePgPool): SqlClient;
/**
 * node-postgres-native setup: accepts a `pg.Pool` instance directly.
 *
 * @example
 * ```ts
 * import pg from "pg";
 * import { setup } from "bash-gres/node-postgres";
 *
 * const pool = new pg.Pool({ connectionString: "postgres://localhost:5432/mydb" });
 * await setup(pool);
 * ```
 */
export declare function setup(pool: NodePgPool, options?: SetupOptions): Promise<void>;
export type NodePgFileSystemOptions = Omit<PgFileSystemOptions, "db"> & {
    db: NodePgPool;
};
/**
 * PgFileSystem that accepts a `pg.Pool` instance directly.
 *
 * @example
 * ```ts
 * import pg from "pg";
 * import { PgFileSystem } from "bash-gres/node-postgres";
 *
 * const pool = new pg.Pool({ connectionString: "postgres://localhost:5432/mydb" });
 * const fs = new PgFileSystem({ db: pool, workspaceId: "ws-1" });
 * ```
 */
export declare class PgFileSystem extends CorePgFileSystem {
    constructor(options: NodePgFileSystemOptions);
}
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