import { StringIndexable } from "../util";
import { AnyEntityMetadata } from "../metadata";
/**
 * Describes criteria entities processed by a query must adhere to.
 *
 * Immutable
 */
export declare class Filter {
    readonly criteria: Filter.Criteria;
    readonly length: number;
    constructor(criteria: Filter.Criteria);
    /**
     * Reduces another filter by reducing common (i.e. pointing to the same property) criteria.
     *
     * Returns null if the given filter is completely reduced, otherwise a new filter where one criteria has been partially reduced.
     *
     * Throws if the filters have a common criteria with incompatible value types.
     */
    reduce(other: Filter): Filter | null;
    filter<T extends StringIndexable>(items: T[]): T[];
    private _itemMatches(item);
    toDtoFormat(metadata: AnyEntityMetadata): Filter;
    toEntityFormat(metadata: AnyEntityMetadata): Filter;
}
export declare module Filter {
    interface BooleanEqualityCriterion {
        op: "==" | "!=";
        type: "bool";
        value: boolean | null;
    }
    interface NumberEqualityCriterion {
        op: "==" | "!=";
        type: "number";
        value: number | null;
    }
    interface StringEqualityCriterion {
        op: "==" | "!=";
        type: "string";
        value: string | null;
    }
    interface GuidEqualityCriterion {
        op: "==" | "!=";
        type: "guid";
        value: string | null;
    }
    interface DateEqualityCriterion {
        op: "==" | "!=";
        type: "date";
        value: Date | null;
    }
    type EqualityCriterion = BooleanEqualityCriterion | NumberEqualityCriterion | StringEqualityCriterion | GuidEqualityCriterion | DateEqualityCriterion;
    interface BooleanMemberCriterion {
        op: "in" | "not-in";
        type: "bool";
        values: Set<boolean | null>;
    }
    interface NumberMemberCriterion {
        op: "in" | "not-in";
        type: "number";
        values: Set<number | null>;
    }
    interface StringMemberCriterion {
        op: "in" | "not-in";
        type: "string";
        values: Set<string | null>;
    }
    interface GuidMemberCriterion {
        op: "in" | "not-in";
        type: "guid";
        values: Set<string | null>;
    }
    type MemberCriterion = BooleanMemberCriterion | NumberMemberCriterion | StringMemberCriterion | GuidMemberCriterion;
    interface BooleanSetCriterion {
        op: "common";
        type: "bool";
        values: Set<boolean | null>;
    }
    interface NumberSetCriterion {
        op: "common";
        type: "number";
        values: Set<number | null>;
    }
    interface StringSetCriterion {
        op: "common";
        type: "string";
        values: Set<string | null>;
    }
    interface GuidSetCriterion {
        op: "common";
        type: "guid";
        values: Set<string | null>;
    }
    type SetCriterion = BooleanSetCriterion | NumberSetCriterion | StringSetCriterion | GuidSetCriterion;
    interface NumberPointCriterion {
        op: "<" | "<=" | ">" | ">=";
        type: "number";
        value: number;
        step: number;
    }
    interface StringPointCriterion {
        op: "<" | "<=" | ">" | ">=";
        type: "string";
        value: string;
    }
    interface DatePointCriterion {
        op: "<" | "<=" | ">" | ">=";
        type: "date";
        value: Date;
    }
    type PointCriterion = NumberPointCriterion | StringPointCriterion | DatePointCriterion;
    interface NumberRangeCriterion {
        op: "from-to";
        type: "number";
        range: [number, number];
        step: number;
    }
    interface StringRangeCriterion {
        op: "from-to";
        type: "string";
        range: [string, string];
    }
    interface DateRangeCriterion {
        op: "from-to";
        type: "date";
        range: [Date, Date];
    }
    type RangeCriterion = NumberRangeCriterion | StringRangeCriterion | DateRangeCriterion;
    type SingleValueCriterion = EqualityCriterion | PointCriterion;
    type Criterion = EqualityCriterion | PointCriterion | MemberCriterion | SetCriterion | RangeCriterion;
    type Operations = Criterion["op"];
    type SingleValueOperations = SingleValueCriterion["op"];
    type Types = Criterion["type"];
    type BooleanCriterion = BooleanEqualityCriterion | BooleanMemberCriterion | BooleanSetCriterion;
    type NumberCriterion = NumberEqualityCriterion | NumberPointCriterion | NumberMemberCriterion | NumberSetCriterion | NumberRangeCriterion;
    type StringCriterion = StringEqualityCriterion | StringPointCriterion | StringMemberCriterion | StringSetCriterion | StringRangeCriterion;
    type GuidCriterion = GuidEqualityCriterion | GuidMemberCriterion | GuidSetCriterion;
    type DateCriterion = DateEqualityCriterion | DatePointCriterion | DateRangeCriterion;
    interface Criteria {
        [property: string]: Criterion;
    }
    function isMemberCriterion(criterion: Criterion): criterion is MemberCriterion;
    function isSetCriterion(criterion: Criterion): criterion is SetCriterion;
    function isRangeCriterion(criterion: Criterion): criterion is RangeCriterion;
    function isPointCriterion(criterion: Criterion): criterion is PointCriterion;
    function isNull(type: Types): EqualityCriterion;
    function notNull(type: Types): EqualityCriterion;
    function equals(value: boolean): BooleanEqualityCriterion;
    function equals(value: number): NumberEqualityCriterion;
    function equals(value: string): StringEqualityCriterion;
    function equals(value: Date): DateEqualityCriterion;
    function notEquals(value: boolean): BooleanEqualityCriterion;
    function notEquals(value: number): NumberEqualityCriterion;
    function notEquals(value: string): StringEqualityCriterion;
    function notEquals(value: Date): DateEqualityCriterion;
    function less(value: number, step?: number): NumberPointCriterion;
    function less(value: string): StringPointCriterion;
    function less(value: Date): DatePointCriterion;
    function lessEquals(value: number, step?: number): NumberPointCriterion;
    function lessEquals(value: string): StringPointCriterion;
    function lessEquals(value: Date): DatePointCriterion;
    function greater(value: number, step?: number): NumberPointCriterion;
    function greater(value: string): StringPointCriterion;
    function greater(value: Date): DatePointCriterion;
    function greaterEquals(value: number, step?: number): NumberPointCriterion;
    function greaterEquals(value: string): StringPointCriterion;
    function greaterEquals(value: Date): DatePointCriterion;
    function inRange(from: number, to: number, step?: number): NumberRangeCriterion;
    function inRange(from: string, to: string): StringRangeCriterion;
    function inRange(from: Date, to: Date): DateRangeCriterion;
    function memberOf(values: Iterable<boolean>): BooleanMemberCriterion;
    function memberOf(values: Iterable<number>): NumberMemberCriterion;
    function memberOf(values: Iterable<string>): StringMemberCriterion;
    function notMemberOf(values: Iterable<boolean>): BooleanMemberCriterion;
    function notMemberOf(values: Iterable<number>): NumberMemberCriterion;
    function notMemberOf(values: Iterable<string>): StringMemberCriterion;
}