import { type MRT_ColumnDef } from 'mantine-react-table';
import type { MetricData, TableColumn } from '../types';
import type { DataPoint } from '../visuals/DistributionChart';
interface SeriesItem {
    name: string;
    type: 'bar';
    stack: 'total';
    data: number[];
}
interface ChartDataResult {
    xAxisValues: string[];
    seriesData: SeriesItem[];
}
/**
 * A generic utility to build x-axis values and series data for a stacked bar chart in ECharts.
 *
 * @param data - An array of objects of any shape (T).
 * @param xAxisDataValueKey - The string key in each object representing x-axis data (e.g. "channel", "status").
 * @param seriesDataNameKey - The string key in each object representing the series name (e.g. "productName").
 * @param seriesDataValueKey - The string key in each object representing the numeric value (e.g. "amount").
 *
 * @returns An object containing:
 *   - xAxisValues: A string[] of unique x-axis values (in order).
 *   - seriesData: An array of SeriesItem (with "name", "type", "stack", and the numeric data array).
 */
export declare function getBarChartData<T extends Record<string, any>>(data: {
    [key: string]: any;
}[], xAxisDataValueKey: string, seriesDataNameKey: string, seriesDataValueKey: string): ChartDataResult;
/**
 * Flattens your data (if it happens to be an array of arrays)
 * and maps it into an xAxis array of names and a seriesData
 * array of { name, value } objects.
 *
 * @param data     The raw data from the backend, e.g. [ [ { amount: 60, productName: 'Electronics' }, ... ] ]
 *                 If data is just a single array (e.g. [ { amount: 60, productName: 'Electronics' }, ... ]),
 *                 this function will still work (no harm in calling `flat()`).
 * @param nameKey  The key in each object that maps to the category name (used in xAxis and the `name` field).
 * @param valueKey The key in each object that maps to the numeric value (used in `value`).
 *
 * @returns An object containing:
 *          - xAxis: string[]   (e.g. ["Electronics", "Fashion", "Home & Garden"])
 *          - seriesData: Array<{ name: string; value: number }>
 *            (e.g. [{ name: "Electronics", value: 60 }, ...])
 */
export declare function getPieChartData<T extends Record<PropertyKey, any>>(data: T[] | T[][], // can be an array of objects OR an array of arrays of objects
nameKey: keyof T, // e.g. 'productName'
valueKey: keyof T, // e.g. 'amount'
otherKey?: keyof T): {
    xAxis: string[];
    seriesData: {
        name: string;
        value: number;
        otherValue: string | number;
    }[];
};
/**
 * Flattens your data (if it happens to be an array of arrays)
 * and maps it into an xAxis array of names and a seriesData
 * array of { name, value } objects.
 *
 * @param data     The raw data from the backend, e.g. [ [ { amount: 60, productName: 'Electronics' }, ... ] ]
 *                 If data is just a single array (e.g. [ { amount: 60, productName: 'Electronics' }, ... ]),
 *                 this function will still work (no harm in calling `flat()`).
 * @param nameKey  The key in each object that maps to the category name (used in xAxis and the `name` field).
 * @param valueKey The key in each object that maps to the numeric value (used in `value`).
 *
 * @returns An object containing:
 *          - seriesData: Array<{ name: string; value: number }>
 *            (e.g. [{ name: "Electronics", value: 60 }, ...])
 */
export declare function getSeriesData<T extends Record<PropertyKey, any>>(data: T[] | T[][], // can be an array of objects OR an array of arrays of objects
nameKey: keyof T, // e.g. 'productName'
valueKey: keyof T): {
    seriesData: {
        name: string;
        value: number;
    }[];
};
/**
 * Flattens your data (if it happens to be an array of arrays)
 * and maps it into a select options array. Handles null/undefined values safely.
 */
export declare function getFilterOptionsData<T extends Record<PropertyKey, any>>(data: T[] | T[][], filterKey: keyof T): {
    optionsData: {
        label: string;
        value: string;
    }[];
};
/**
 * Flattens your data (if it happens to be an array of arrays)
 * and maps it into a select options array.
 */
export declare function generateSelectOptions<T extends Record<PropertyKey, any>>(data: T[] | T[][], labelKey: keyof T, valueKey: keyof T): {
    optionsData: {
        label: string;
        value: string;
    }[];
};
export declare const formatValue: (value: number, format?: string, options?: {
    currency?: string;
    locale?: string;
}) => string;
export declare const transformColumns: <TData extends Record<string, any>>(columns: TableColumn<TData>[]) => MRT_ColumnDef<TData>[];
/**
 * Formats an array of objects into DataPoint format required for Distribution Chart
 * @param data Array of objects to format
 * @param valueKey Key in the object to use as the value
 * @param nameKey Key in the object to use as the name
 * @returns Array of DataPoint objects
 */
export declare function formatToDataPoints<T extends Record<string, any>>(data: T[], valueKey: keyof T, nameKey: keyof T): DataPoint[];
export declare const formatDonutChartData: (data: MetricData[], nameKey: string, valueKey: string) => {
    legendData: any[];
    seriesData: Record<string, any>[];
};
export {};