import { Hooks } from './hooks';
import { ResizeObserver } from 'resize-observer';
import { ECharts, EChartOption } from 'echarts';
import { isHook, ServerData, isChartisan, Chartisan as Base } from '@chartisan/chartisan';
export { Hooks as ChartisanHooks };
/**
 * Used as an alias.
 */
export declare type CC = EChartOption;
/**
 * Base chart class for Echarts.
 */
export declare class Chartisan extends Base<CC> {
    /**
     * The chart canvas.
     */
    div?: HTMLDivElement;
    /**
     * Stores the chart instance.
     */
    chart?: ECharts;
    /**
     * Stores the resize observer.
     */
    observer?: ResizeObserver;
    /**
     * Observes the chart division for changes to resize
     * the chart to the new division dimensions.
     */
    protected observe(): void;
    /**
     * Renews the division where the chart lives.
     */
    protected renewDiv(): void;
    /**
     * Formats the data of the request to match the data that
     * the chart needs (acording to the desired front-end).
     */
    protected formatData(response: ServerData): CC;
    /**
     * Handles a successfull response of the chart data.
     */
    protected onUpdate(data: CC): void;
    /**
     * Handles a successfull response of the chart data
     * in the background (possibly, updating the values
     * of the chart without creating a new one).
     */
    protected onBackgroundUpdate(data: CC): void;
    /**
     * Destroys the chart instance if any.
     */
    protected onDestroy(): void;
}
declare global {
    /**
     * Extends the Window interface.
     */
    interface Window {
        /**
         * The chartisan class to initiate it as a global variable
         * bound to the window var.
         */
        Chartisan: isChartisan<CC>;
        /**
         * Determines the hooks of the chart.
         */
        ChartisanHooks: isHook<CC>;
    }
}