import SQLite3 from 'better-sqlite3';
import { NymphDriver, type EntityConstructor, type EntityObjectType, type EntityInterface, type EntityInstanceType, type SerializedEntityData, type FormattedSelector, type Options, type Selector } from '@nymphjs/nymph';
import { SQLite3DriverConfig } from './conf/index.js';
declare class InternalStore {
    link: SQLite3.Database;
    linkWrite?: SQLite3.Database;
    connected: boolean;
    transactionsStarted: number;
    constructor(link: SQLite3.Database);
}
/**
 * The SQLite3 Nymph database driver.
 */
export default class SQLite3Driver extends NymphDriver {
    config: SQLite3DriverConfig;
    protected prefix: string;
    protected store: InternalStore;
    static escape(input: string): string;
    static escapeValue(input: string): string;
    constructor(config: Partial<SQLite3DriverConfig>, store?: InternalStore);
    /**
     * This is used internally by Nymph. Don't call it yourself.
     *
     * @returns A clone of this instance.
     */
    clone(): SQLite3Driver;
    /**
     * Connect to the SQLite3 database.
     *
     * @returns Whether this instance is connected to a SQLite3 database.
     */
    connect(): Promise<boolean>;
    private _connect;
    /**
     * Disconnect from the SQLite3 database.
     *
     * @returns Whether this instance is connected to a SQLite3 database.
     */
    disconnect(): Promise<false>;
    inTransaction(): Promise<boolean>;
    /**
     * Check connection status.
     *
     * @returns Whether this instance is connected to a SQLite3 database.
     */
    isConnected(): boolean;
    private createEntitiesTable;
    private addTilmeldColumnsAndIndexes;
    private createEntitiesTilmeldIndexes;
    private createDataTable;
    private createReferencesTable;
    private createTokensTable;
    private createUniquesTable;
    /**
     * Create entity tables in the database.
     *
     * @param etype The entity type to create a table for. If this is blank, the default tables are created.
     */
    private createTables;
    private query;
    private queryArray;
    private queryGet;
    private queryRun;
    commit(name: string): Promise<boolean>;
    deleteEntityByID(guid: string, className?: EntityConstructor | string | null): Promise<boolean>;
    deleteUID(name: string): Promise<boolean>;
    getIndexes(etype: string): Promise<{
        scope: 'data' | 'references' | 'tokens';
        name: string;
        property: string;
    }[]>;
    addIndex(etype: string, definition: {
        scope: 'data' | 'references' | 'tokens';
        name: string;
        property: string;
    }): Promise<boolean>;
    deleteIndex(etype: string, scope: 'data' | 'references' | 'tokens', name: string): Promise<boolean>;
    getEtypes(): Promise<string[]>;
    exportDataIterator(): AsyncGenerator<{
        type: 'comment' | 'uid' | 'entity';
        content: string;
    }, void, false | undefined>;
    /**
     * Generate the SQLite3 query.
     * @param options The options array.
     * @param formattedSelectors The formatted selector array.
     * @param etype
     * @param count Used to track internal params.
     * @param params Used to store internal params.
     * @param subquery Whether only a subquery should be returned.
     * @returns The SQL query.
     */
    private makeEntityQuery;
    protected performQuery(options: Options, formattedSelectors: FormattedSelector[], etype: string): {
        result: any;
    };
    getEntities<T extends EntityConstructor = EntityConstructor>(options: Options<T> & {
        return: 'count';
    }, ...selectors: Selector[]): Promise<number>;
    getEntities<T extends EntityConstructor = EntityConstructor>(options: Options<T> & {
        return: 'guid';
    }, ...selectors: Selector[]): Promise<string[]>;
    getEntities<T extends EntityConstructor = EntityConstructor>(options: Options<T> & {
        return: 'object';
    }, ...selectors: Selector[]): Promise<EntityObjectType<T>[]>;
    getEntities<T extends EntityConstructor = EntityConstructor>(options?: Options<T>, ...selectors: Selector[]): Promise<EntityInstanceType<T>[]>;
    getUID(name: string): Promise<number | null>;
    importEntity(entity: {
        guid: string;
        cdate: number;
        mdate: number;
        tags: string[];
        sdata: SerializedEntityData;
        etype: string;
    }): Promise<void>;
    importEntityTokens(entity: {
        guid: string;
        cdate: number;
        mdate: number;
        tags: string[];
        sdata: SerializedEntityData;
        etype: string;
    }): Promise<void>;
    importEntityTilmeldAC(entity: {
        guid: string;
        cdate: number;
        mdate: number;
        tags: string[];
        sdata: SerializedEntityData;
        etype: string;
    }): Promise<void>;
    private importEntityInternal;
    importUID({ name, value }: {
        name: string;
        value: number;
    }): Promise<void>;
    newUID(name: string): Promise<number>;
    renameUID(oldName: string, newName: string): Promise<boolean>;
    rollback(name: string): Promise<boolean>;
    saveEntity(entity: EntityInterface): Promise<boolean>;
    setUID(name: string, curUid: number): Promise<boolean>;
    internalTransaction(name: string): Promise<void>;
    startTransaction(name: string): Promise<import("@nymphjs/nymph").Nymph>;
    private removeTilmeldOldRows;
    needsMigration(): Promise<'json' | 'tokens' | 'tilmeldColumns' | false>;
    liveMigration(migrationType: 'tokenTables' | 'tilmeldColumns' | 'tilmeldRemoveOldRows'): Promise<void>;
}
export {};