import { ChartType as ChartType$1, ChartOptions as ChartOptions$1, Plugin } from 'chart.js';
export { ChartData } from 'chart.js';
import { PassThrough, PassThroughOption } from 'primeng/api';

/**
 * Defines the type of chart.
 * @group Types
 */
type ChartType = 'bar' | 'line' | 'scatter' | 'bubble' | 'pie' | 'doughnut' | 'polarArea' | 'radar';

/**
 * Untyped chart options. An interface over chart.js' own `ChartOptions`, so the
 * bundled d.ts references it by name instead of expanding the internal
 * `_DeepPartialObject`, which chart.js does not export.
 * Prefer {@link ChartOptions}.
 * @group Types
 */
interface ChartOptionsBase extends ChartOptions$1<ChartType$1> {
}
/**
 * Chart configuration options. `ChartOptions<'bar'>` resolves to the chart.js type.
 * @group Types
 */
type ChartOptions<TType extends ChartType$1 = never> = [TType] extends [never] ? ChartOptionsBase : ChartOptions$1<TType>;
/**
 * Per-chart plugin. Options default to `Record<string, any>` rather than chart.js'
 * unexported `AnyObject`.
 * @group Types
 */
type ChartPlugin<TType extends ChartType$1 = ChartType$1, O = Record<string, any>> = Plugin<TType, O>;
/**
 * Event emitted when chart data is selected.
 * @group Events
 */
interface ChartDataSelectEvent {
    /**
     * Browser event.
     */
    originalEvent: Event;
    /**
     * Selected element.
     */
    element: unknown;
    /**
     * Selected dataset.
     */
    dataset: unknown[];
}
/**
 * Custom pass-through(pt) options.
 * @template I Type of instance.
 *
 * @see {@link UIChart.pt}
 * @group Interface
 */
interface ChartPassThroughOptions<I = unknown> {
    /**
     * Used to pass attributes to the host's DOM element.
     */
    host?: PassThroughOption<HTMLElement, I>;
    /**
     * Used to pass attributes to the root's DOM element.
     */
    root?: PassThroughOption<HTMLElement, I>;
    /**
     * Used to pass attributes to the canvas DOM element.
     */
    canvas?: PassThroughOption<HTMLCanvasElement, I>;
}
/**
 * Defines valid pass-through options in Chart.
 * @see {@link ChartPassThroughOptions}
 *
 * @template I Type of instance.
 */
type ChartPassThrough<I = unknown> = PassThrough<I, ChartPassThroughOptions<I>>;

export type { ChartDataSelectEvent, ChartOptions, ChartOptionsBase, ChartPassThrough, ChartPassThroughOptions, ChartPlugin, ChartType };