import { EventEmitter, OnChanges, OnInit, SimpleChanges } from '@angular/core';
import { KeyValue } from '../../../common/KeyValue';
import { LabelDropdownOption } from '../../../design-system/dropdowns/label-dropdown-option';
import { FilterModifier } from '../filter-modifier';
import { GroupingOptions } from '../../model/public/modifier-options';
import * as i0 from "@angular/core";
declare class GroupSelectOptionWrapper implements LabelDropdownOption {
    hierarchyIndex?: number;
    indexInHierarchy?: number;
    value: string;
    display: string;
}
export declare class GroupingComponent<T> extends FilterModifier<T, Array<KeyValue>> implements OnInit, OnChanges {
    options: GroupingOptions<T>;
    outputObject: T;
    savedFilter: any;
    applyGrouping: EventEmitter<T>;
    groupingSelections: Array<GroupSelectOptionWrapper>;
    groupingSelectOptions: Array<GroupSelectOptionWrapper>;
    ngOnInit(): void;
    ngOnChanges(changes: SimpleChanges): void;
    addGrouping(grouping: KeyValue): void;
    closeGroupingChip(index: number): void;
    switchGroupingChipsPositions($event: any): void;
    getGroupingChipPredicate(index: number): string;
    onSavedGcpFilterApplied(selections: Array<KeyValue>): void;
    /**
     * Creates an error message when there is a hierarchy error.
     *
     * @param hierarchy {@link Array<GroupSelectOptionWrapper>}
     * @returns The message
     */
    getErrorMessage(hierarchy: Array<GroupSelectOptionWrapper>): string;
    convertGroupingSelectionForEmit(): Array<string>;
    isValid(selection: T): boolean;
    private apply;
    static ɵfac: i0.ɵɵFactoryDeclaration<GroupingComponent<any>, never>;
    static ɵcmp: i0.ɵɵComponentDeclaration<GroupingComponent<any>, "lib-grouping", never, { "options": { "alias": "options"; "required": false; }; "outputObject": { "alias": "outputObject"; "required": false; }; "savedFilter": { "alias": "savedFilter"; "required": false; }; }, { "applyGrouping": "applyGrouping"; }, never, never, true, never>;
}
export {};