import { EventEmitter } from '../EventEmitter';
import { ChartEventMap } from '../../types';

export type AlertDirection = "above" | "below" | "cross";
export interface PriceAlertOptions {
    id?: string;
    price: number;
    direction: AlertDirection;
    seriesId?: string;
    /** Fire once then remove (default true) */
    once?: boolean;
}
export interface AlertEvent {
    id: string;
    price: number;
    direction: AlertDirection;
    seriesId?: string;
    triggeredAt: number;
    triggerPrice: number;
}
export interface AlertableSeries {
    getId(): string;
    getData(): {
        x: Float32Array | Float64Array;
        y?: Float32Array | Float64Array;
        close?: Float32Array | Float64Array;
    };
}
export declare class ChartAlertManager {
    private events;
    private getSeries;
    private alerts;
    private idCounter;
    constructor(events: EventEmitter<ChartEventMap>, getSeries: (id?: string) => AlertableSeries | undefined);
    addAlert(options: PriceAlertOptions): string;
    removeAlert(id: string): boolean;
    clearAlerts(): void;
    getAlerts(): PriceAlertOptions[];
    /** Call after data updates / render tick. */
    evaluate(): void;
    destroy(): void;
}