import sqlite from "node:sqlite";
import type { ClientId } from "../../mqttPacket/types.ts";
/**
 * Instantiates the physical relational structures and schemas required by the persistence engine.
 * @param filename Filepath location or memory target specifier.
 */
export declare function initializeDatabase(filename: string): sqlite.DatabaseSync;
export type AllStatements = {
    saveSession: sqlite.StatementSync;
    getSession: sqlite.StatementSync;
    listAllSessions: sqlite.StatementSync;
    saveSubscription: sqlite.StatementSync;
    deleteSubscription: sqlite.StatementSync;
    listSubscriptions: sqlite.StatementSync;
    listAllSubscriptions: sqlite.StatementSync;
    saveIncoming: sqlite.StatementSync;
    getIncoming: sqlite.StatementSync;
    updateIncomingDup: sqlite.StatementSync;
    deleteIncoming: sqlite.StatementSync;
    listIncoming: sqlite.StatementSync;
    saveOutgoing: sqlite.StatementSync;
    getOutgoing: sqlite.StatementSync;
    updateOutgoingDup: sqlite.StatementSync;
    deleteOutgoing: sqlite.StatementSync;
    listOutgoing: sqlite.StatementSync;
    saveAck: sqlite.StatementSync;
    hasAck: sqlite.StatementSync;
    deleteAck: sqlite.StatementSync;
    listAcks: sqlite.StatementSync;
    saveRetained: sqlite.StatementSync;
    deleteRetained: sqlite.StatementSync;
    getRetainedExact: sqlite.StatementSync;
    listRetainedLike: sqlite.StatementSync;
};
/**
 * Instantiates the physical relational structures and schemas required by the persistence engine.
 * @param db  the database for which to prepare the statements
 */
export declare function prepareAllStatements(db: sqlite.DatabaseSync): AllStatements;
/**
 * Truncates and drops relational state assignments under targeted clients inside atomic scopes.
 * @param db Connection reference context.
 * @param clientId Specific target client ID tracking token.
 */
export declare function deleteClientState(db: sqlite.DatabaseSync, clientId: ClientId): void;
//# sourceMappingURL=sqliteDatabase.d.ts.map