import { Query } from 'queric';
import { SearchQuery, IfFullQuery, IfSearchQuery } from '../../main/databox/dbDefinitions';
import { setNotFunctionSymbol } from '../Not';
/**
 * @description
 * Util function for creating a value filter for databox transactions.
 * @example
 * db.content.insert('34',{name: 'Luca'},{if: $not($contains($value({name: 'Luca'})))})
 * @param query
 */
export declare function $value<T>(query: Query<T>): SearchQuery;
/**
 * @description
 * Util function for creating a key filter for databox transactions.
 * @example
 * db.content.insert('36','luca',{if: $contains($key('35'))})
 * @param query
 */
export declare function $key<T>(query: Query<T>): SearchQuery;
/**
 * @description
 * Util function for creating a pair (key and value) filter for databox transactions.
 * @example
 * db.content.insert('22',{type: 'Car'},{if: $contains($pair({$eq: '21'},{type: 'Bicycle'}))})
 * @param keyQuery
 * @param valueQuery
 */
export declare function $pair<TK, TV>(keyQuery: Query<TK>, valueQuery: Query<TV>): SearchQuery;
/**
 * @description
 * Databox filter constant to select all values.
 */
export declare const $all: Readonly<{}>;
/**
 * @description
 * Util function for creating an if condition for databox transactions.
 * It creates a condition that at least one item must match with the provided query.
 * It's possible to invert the condition using the $not function. (None of the items should match)
 * @example
 * db.content['34'].name.update('luca',{if: $contains($key('age'))})
 * db.content['34'].name.update('luca',{if: $not($contains($key('age')))})
 * @param query
 */
export declare function $contains<T>(query: SearchQuery<keyof T, T[keyof T]>): IfSearchQuery<T> & {
    [setNotFunctionSymbol]: () => void;
};
/**
 * @description
 * Util constant for creating an if condition for databox transactions.
 * With this constant, you can check if any element or none element exists.
 * @example
 * db.content.insert('41',{name: 'Max',age: 10},{if: $notContains($any)})
 */
export declare const $any: Readonly<{}>;
/**
 * @description
 * Util function for creating an if condition for databox transactions.
 * It creates a condition that the complete object (all key-value pairs)
 * must match with the provided query.
 * It's possible to invert the condition using the $not function.
 * @example
 * db.content['34'].name.update('luca',{if: $matches({email: 'test1@test.de', age: {gte: 18}})})
 * db.content['34'].name.update('luca',{if: $not($matches({email: 'test1@test.de', age: {gte: 18}}))})
 * @param query
 */
export declare function $matches<T>(query: Query<T>): IfFullQuery<T> & {
    [setNotFunctionSymbol]: () => void;
};