export declare class Sorter<D> {
    sort(array: D[], scheme: SortScheme<D>): D[];
    getNextSortState(state: SortState): SortState;
    private chainSorting;
    private sorting;
}
export declare type SortState = 'none' | 'asc' | 'desc';
export declare type SorterFn<D> = (a: D, b: D) => number;
export interface SortableArgs<D> {
    id: string;
    sorter: SorterFn<D>;
    getter: (val: D) => string;
    defaults: SortState;
    isActive: boolean;
}
export declare class Sortable<D> implements SortableArgs<D> {
    readonly id: string;
    state: SortState;
    readonly defaults: SortState;
    readonly sorter: SorterFn<D>;
    readonly getter: (val: D) => string;
    readonly isActive: boolean;
    constructor({ id, sorter, getter, defaults, isActive }: {
        id: any;
        sorter: any;
        getter: any;
        defaults: any;
        isActive: any;
    });
}
export interface SortScheme<D> {
    toState: SortState;
    leader: Sortable<D>;
    chain: Sortable<D>[];
}