import { IResponsiveTablePlugin, IPluginAPI } from './IResponsiveTablePlugin';
import { IResponsiveTableColumnDefinition, SortDirection } from '../Data/IResponsiveTableColumnDefinition';
export interface ISortPluginOptions {
    initialSortColumn?: string;
    initialSortDirection?: SortDirection;
}
export declare class SortPlugin<TData> implements IResponsiveTablePlugin<TData> {
    id: string;
    private api;
    private sortColumn;
    private sortDirection;
    readonly comparers: {
        numeric: (key: keyof TData) => (a: TData, b: TData, direction: SortDirection) => number;
        caseInsensitiveString: (key: keyof TData) => (a: TData, b: TData, direction: SortDirection) => 0 | 1 | -1;
        date: (key: keyof TData) => (a: TData, b: TData, direction: SortDirection) => number;
    };
    constructor(options?: ISortPluginOptions);
    onPluginInit: (api: IPluginAPI<TData>) => void;
    processData: (data: TData[]) => TData[];
    getHeaderProps: (columnDef: IResponsiveTableColumnDefinition<TData>) => {
        onClick?: undefined;
        className?: undefined;
        'aria-sort'?: undefined;
    } | {
        onClick: (e: React.MouseEvent<HTMLElement>) => void;
        className: string;
        'aria-sort': "none" | "ascending" | "descending";
    };
}