import { Config, Field } from '@planetscale/database';
import { Dialect, MysqlAdapter, Driver, QueryCompiler, Kysely, DatabaseIntrospector } from 'kysely';

/**
 * Config for the PlanetScale dialect. It extends {@link Config} from `@planetscale/database`,
 * so you can pass any of those options to the constructor.
 *
 * @see https://github.com/planetscale/database-js#usage
 */
interface PlanetScaleDialectConfig extends Config {
    /**
     * Use a single `@planetscale/database` connection for all non-transaction queries.
     *
     * @default false
     */
    useSharedConnection?: boolean;
}
/**
 * PlanetScale dialect that uses the [PlanetScale Serverless Driver for JavaScript][0].
 * The constructor takes an instance of {@link Config} from `@planetscale/database`.
 *
 * ```typescript
 * new PlanetScaleDialect({
 *   host: '<host>',
 *   username: '<username>',
 *   password: '<password>',
 * })
 *
 * // or with a connection URL
 *
 * new PlanetScaleDialect({
 *   url: process.env.DATABASE_URL ?? 'mysql://<username>:<password>@<host>/<database>'
 * })
 * ```
 *
 * See the [`@planetscale/database` documentation][1] for more information.
 *
 * [0]: https://github.com/planetscale/database-js
 * [1]: https://github.com/planetscale/database-js#readme
 */
declare class PlanetScaleDialect implements Dialect {
    #private;
    constructor(config: PlanetScaleDialectConfig);
    createAdapter(): MysqlAdapter;
    createDriver(): Driver;
    createQueryCompiler(): QueryCompiler;
    createIntrospector(db: Kysely<unknown>): DatabaseIntrospector;
}
/**
 * Converts dates returned from the database to JavaScript Date objects. This is the default
 * `cast` function passed to the `@planetscale/database` library, but you can override it by
 * passing your own alternative `cast` function to {@link Config}.
 */
declare function inflateDates(field: Field, value: string | null): any;

export { PlanetScaleDialect, type PlanetScaleDialectConfig, inflateDates };