/**
 * CR-SQLite extension loading and information utilities.
 *
 * This module provides low-level utilities for loading the CR-SQLite extension
 * and retrieving information about it. It handles the dynamic import of the
 * native library, loads the extension into the SQLite connection, and provides
 * structured information about the loaded extension.
 *
 * The main operations include:
 * - Loading the CR-SQLite extension from the native library
 * - Querying extension information (SHA, site ID)
 * - Creating Effect services for dependency injection
 *
 * @since 0.1.0
 */
import * as SqlClient from "@effect/sql/SqlClient";
import * as DateTime from "effect/DateTime";
import * as Effect from "effect/Effect";
import * as CrSqlErrors from "./CrSqlErrors.js";
/**
 * Configuration key for the CR-SQLite extension library path.
 *
 * This key is used to retrieve the filesystem path to the CR-SQLite
 * extension library from the configuration. It is expected that the
 * path points to a valid shared library file (e.g., `.so`, `.dylib`, `.dll`).
 *
 * @since 0.1.1
 * @category Configuration
 */
export declare const LibCrSqlPathKey: "CRSQLITE_PATH";
/**
 * Query CR-SQLite extension information via SQL functions.
 *
 * Retrieves the extension's SHA and site ID by calling the built-in
 * CR-SQLite functions `crsql_sha()` and `crsql_site_id()`. This requires
 * the extension to already be loaded into the SQLite connection.
 *
 * @since 0.1.0
 * @category Queries
 */
export declare const sqlExtInfo: Effect.Effect<{
    readonly sha: string;
    readonly siteId: string;
}, CrSqlErrors.CrSqliteExtensionMissing, SqlClient.SqlClient>;
/**
 * Load the CR-SQLite extension and return complete information.
 *
 * This function performs the complete extension loading sequence:
 * 1. Dynamically imports the native library
 * 2. Gets the extension file path
 * 3. Loads the extension into the SQLite connection
 * 4. Queries the extension for SHA and site ID
 * 5. Returns complete information including loading metadata
 *
 * @since 0.1.0
 * @category Operations
 */
export declare const loadLibCrSql: Effect.Effect<{
    readonly sha: string;
    readonly siteId: string;
    readonly path: string | null;
    readonly loadedAt: DateTime.Utc;
}, CrSqlErrors.CrSqliteExtensionMissing, SqlClient.SqlClient>;
declare const ExtInfoLoaded_base: Effect.Service.Class<ExtInfoLoaded, "@effect-native/crsql/CrSqliteExtension.ExtInfoLoaded", {
    readonly effect: Effect.Effect<{
        readonly sha: string;
        readonly siteId: string;
        readonly path: string | null;
        readonly loadedAt: DateTime.Utc;
    }, CrSqlErrors.CrSqliteExtensionMissing, SqlClient.SqlClient>;
}>;
/**
 * Effect service for accessing loaded CR-SQLite extension information.
 *
 * This service automatically loads the CR-SQLite extension and provides
 * access to the complete extension information including SHA, site ID,
 * filesystem path, and loading timestamp.
 *
 * @since 0.1.0
 * @category Services
 */
export declare class ExtInfoLoaded extends ExtInfoLoaded_base {
}
export {};
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