import { IndicatorData } from './types';
import { Series } from '../Series';

export type IndicatorPresetName = "rsi" | "macd" | "bollinger" | "bollingerBands" | "ema" | "sma" | "stochastic";
export interface IndicatorPresetOptions {
    period?: number;
    fastPeriod?: number;
    slowPeriod?: number;
    signalPeriod?: number;
    stdDev?: number;
    /** Root id for generated series (default: preset name) */
    id?: string;
    label?: string;
}
export interface ComputedIndicatorPreset {
    id: string;
    preset: IndicatorPresetName;
    /** overlay = price chart bands/lines; oscillator = separate pane layers */
    placement: "overlay" | "oscillator";
    yRange?: [number, number];
    data: IndicatorData;
}
/** Extract X and close/price array from a source series. */
export declare function extractPriceSeries(source: Series): {
    x: Float32Array | Float64Array;
    prices: Float32Array | Float64Array;
};
/** Extract OHLC from candlestick series for stochastic and similar presets. */
export declare function extractOhlcSeries(source: Series): {
    x: Float32Array | Float64Array;
    open: Float32Array | Float64Array;
    high: Float32Array | Float64Array;
    low: Float32Array | Float64Array;
    close: Float32Array | Float64Array;
};
/** Resolve source series from chart API surface. */
export declare function resolveSourceSeries(chart: {
    getSeries(id: string): Series | undefined;
    getAllSeries(): Series[];
}, sourceSeriesId?: string): Series;
/**
 * Compute composite indicator layers for a preset (async worker path when available).
 */
export declare function computeIndicatorPreset(preset: IndicatorPresetName, x: Float32Array | Float64Array, prices: Float32Array | Float64Array, options?: IndicatorPresetOptions, source?: Series): Promise<ComputedIndicatorPreset>;
export declare function isOverlayPreset(preset: IndicatorPresetName): boolean;