import { IChartHelper, IQueryResultData, ChartType, ISupportedColumnTypes, ISupportedColumns, ColumnsSelection, IChartOptions, ChartTheme, IChartInfo } from './chartModels';
import { IVisualizer } from '../visualizers/IVisualizer';
export declare class KustoChartHelper implements IChartHelper {
    transformedQueryResultData: IQueryResultData;
    isResolveAsSeries: boolean;
    private static readonly maxDefaultYAxesSelection;
    private static readonly defaultChartOptions;
    private readonly seriesVisualize;
    private readonly elementId;
    private readonly visualizer;
    private queryResultData;
    private options;
    private chartInfo;
    constructor(elementId: string, visualizer: IVisualizer);
    draw(queryResultData: IQueryResultData, chartOptions: IChartOptions): Promise<IChartInfo>;
    changeTheme(newTheme: ChartTheme): Promise<void>;
    getSupportedColumnTypes(chartType: ChartType): ISupportedColumnTypes;
    getSupportedColumnsInResult(queryResultData: IQueryResultData, chartType: ChartType): ISupportedColumns;
    getDefaultSelection(queryResultData: IQueryResultData, chartType: ChartType, supportedColumnsForChart?: ISupportedColumns): ColumnsSelection;
    downloadChartJPGImage(): void;
    /**
    * Convert the query result data to an object that the chart can be drawn with.
    * @param queryResultData Original query result data
    * @param chartOptions
    * @returns transformed data if the transformation succeeded. Otherwise - returns null
    */
    private transformQueryResultData;
    private throwInvalidColumnsSelectionIfNeeded;
    private getColumnsStr;
    private tryResolveResultsAsSeries;
    private getSupportedColumns;
    private selectDefaultXAxis;
    private selectDefaultYAxes;
    private selectDefaultSplitByColumn;
    /**
     * Removes the columns that are already selected from the supportedColumns array in order to prevent the selection of the same column in different axes
     * @param supportedColumns - The list of the supported columns for current axis
     * @param currentSelection - The list of the columns that are already selected
     * @returns - The supportedColumns after the removal of the selected columns
     */
    private removeSelectedColumns;
    /**
     * Search for certain columns in the 'queryResultData'. If the column exist:
     * 1. Add the column name and type to the 'chartColumns' array
     * 2. Add it's index in the queryResultData to the 'indexes' array
     * @param columnsToAdd - The columns that we want to search in the 'queryResultData'
     * @param queryResultData - The original query result data
     * @param indexes - The array that the existing columns index will be added to
     * @param chartColumns - The array that the existing columns will be added to
     *
     * @returns An array of the columns that don't exist in the queryResultData. If all columns exist - the array will be empty.
     */
    private addColumnsIfExistInResult;
    private updateDefaultChartOptions;
    private verifyInput;
    private verifyColumnsSelection;
    private verifyColumnTypeIsSupported;
    private finishDrawing;
    private onError;
}