import { DBAdapter, SQLOpenFactory, type ILogLevel } from '@powersync/common';
import { ResolvedWebSQLOpenOptions, WebSQLOpenFactoryOptions } from '../web-sql-flags.js';
import { WASQLiteVFS } from './vfs.js';
import { DatabaseClient } from './DatabaseClient.js';
export interface WASQLiteOpenFactoryOptions extends WebSQLOpenFactoryOptions {
    vfs?: WASQLiteVFS;
}
export interface ResolvedWASQLiteOpenFactoryOptions extends ResolvedWebSQLOpenOptions {
    vfs: WASQLiteVFS;
}
export interface WorkerDBOpenerOptions extends ResolvedWASQLiteOpenFactoryOptions {
    logLevel: ILogLevel;
    /**
     * A lock that is currently held by the client. When the lock is returned, we know the client is gone and that we need
     * to clean up resources.
     */
    lockName: string;
}
/**
 * Opens a SQLite connection using WA-SQLite.
 */
export declare class WASQLiteOpenFactory implements SQLOpenFactory {
    private options;
    private resolvedFlags;
    private logger;
    constructor(options: WASQLiteOpenFactoryOptions);
    get waOptions(): WASQLiteOpenFactoryOptions;
    protected openAdapter(): DBAdapter;
    openDB(): DBAdapter;
    openConnection(): Promise<DatabaseClient>;
}