/**
 * Filter strategy pattern — maps column types × filter conditions to predicate functions.
 * Replaces the 130+ line if-else chain with a declarative lookup table.
 */
import type { IColumnType, IFilterCondition } from './types';
export interface INormalizedColumn {
    field: string;
    type: IColumnType;
    condition: IFilterCondition;
    value: string | number | boolean | undefined;
    filter: boolean;
    search: boolean;
    sort: boolean;
    hide: boolean;
    title?: string;
    width?: string;
    minWidth?: string;
    maxWidth?: string;
    headerClass?: string;
    cellClass?: string;
    isUnique?: boolean;
    html?: boolean;
    cellRenderer?: ((row: Record<string, unknown>) => string) | string;
}
/**
 * Apply column filters to a row set.
 * Returns a new array — does not mutate the input.
 */
export declare const applyColumnFilters: (rows: Array<Record<string, unknown>>, columns: INormalizedColumn[]) => Array<Record<string, unknown>>;
/**
 * Apply global search across searchable columns.
 * Returns a new array — does not mutate the input.
 */
export declare const applyGlobalSearch: (rows: Array<Record<string, unknown>>, columns: INormalizedColumn[], search: string) => Array<Record<string, unknown>>;
/**
 * Apply sorting to a row set.
 * Returns a new sorted array — does not mutate the input.
 */
export declare const applySorting: (rows: Array<Record<string, unknown>>, sortColumn: string, sortDirection: string, isNumeric: boolean) => Array<Record<string, unknown>>;