import { IndicatorResult } from '../plugins/analysis/indicators';

type IndicatorName = "rsi" | "macd" | "bollingerBands" | "sma" | "ema";
interface IndicatorTaskPayload {
    id: string;
    type: "indicator";
    indicator: IndicatorName;
    data: Float32Array | Float64Array;
    period?: number;
    fastPeriod?: number;
    slowPeriod?: number;
    signalPeriod?: number;
    stdDev?: number;
}
interface IndicatorTaskResult extends IndicatorResult {
    id: string;
    type: "indicator-result";
    indicator: string;
    duration: number;
}
/**
 * Synchronous indicator computation shared by the sync fallback path.
 * Exported so the parameter defaults and dispatch can be unit-tested directly.
 */
export declare function computeIndicatorSync(task: IndicatorTaskPayload): IndicatorTaskResult;
/** Async RSI — non-blocking for large datasets */
export declare function rsiAsync(data: Float32Array | Float64Array | number[], period?: number): Promise<IndicatorResult & {
    duration: number;
}>;
/** Async SMA */
export declare function smaAsync(data: Float32Array | Float64Array | number[], period?: number): Promise<IndicatorResult & {
    duration: number;
}>;
/** Async EMA */
export declare function emaAsync(data: Float32Array | Float64Array | number[], period?: number): Promise<IndicatorResult & {
    duration: number;
}>;
/** Async MACD */
export declare function macdAsync(data: Float32Array | Float64Array | number[], fastPeriod?: number, slowPeriod?: number, signalPeriod?: number): Promise<IndicatorResult & {
    duration: number;
}>;
/** Async Bollinger Bands */
export declare function bollingerBandsAsync(data: Float32Array | Float64Array | number[], period?: number, stdDev?: number): Promise<IndicatorResult & {
    duration: number;
}>;
/** Destroy the shared indicator worker pool (for tests) */
export declare function destroyIndicatorPool(): void;
/** Exposed for tests */
export declare function getIndicatorPoolSize(): number;
/** Exposed for tests */
export declare function isIndicatorPreferSync(): boolean;
export {};