import { IDatabaseTableQuery, ValueTypeOmitId, IValueType, IDatabaseTableEvent, IQueryBuilder } from '.';
/**
 * Interface for a key-value database table.
 * @category Key-Value Database
 */
export interface IDatabaseTable<T extends IValueType> {
    /**
     * Get the value for a key.
     * @param key The key to get the value for.
     * @returns A promise that resolves with the value for the key.
     */
    get(key: string): Promise<T | undefined>;
    /**
     * Set the value for a key.
     * @param key The key to set the value for.
     * @param value The value to set for the key. It must be {@link https://html.spec.whatwg.org/multipage/structured-data.html#serializable-objects | serializable }.
     * @returns A promise that resolves with the value set.
     */
    set(key: string, value: ValueTypeOmitId<T>): Promise<T>;
    /**
     * Add a value to the database.
     * @param value The value to add.
     * @returns A promise that resolves with the value added.
     */
    add(value: ValueTypeOmitId<T>): Promise<T>;
    /**
     * Delete a key.
     * @param key The key to delete.
     * @returns A promise that resolves when the key has been deleted.
     */
    delete(key: string): Promise<void>;
    /**
     * Clear the database.
     * @returns A promise that resolves when the database has been cleared.
     */
    clear(): Promise<void>;
    /**
     * Get all the values in the database.
     * @param query The query to use to filter the values.
     * If no query is provided, all the values in the database are returned.
     * The query can either be a {@link IDatabaseTableQuery} or a {@link QueryBuilder}.
     * @returns A promise that resolves with all the values in the database.
     */
    list(query?: IDatabaseTableQuery | IQueryBuilder): Promise<T[]>;
    /**
     * Count the number of keys in the database.
     * @param query The query to use to filter the keys.
     * If no query is provided, all the keys in the database are counted.
     * The query can either be a {@link IDatabaseTableQuery} or a {@link QueryBuilder}.
     * @returns A promise that resolves with the number of keys in the database.
     */
    count(query?: IDatabaseTableQuery | IQueryBuilder): Promise<number>;
    /**
     * Subscribe to changes in the database table.
     * @param callback The callback to call when the database table changes.
     */
    subscribe(callback: (event: IDatabaseTableEvent<T>) => void): void;
    /**
     * Unsubscribe from changes in the database table.
     */
    unsubscribe(): void;
}