import { AstroChartHandle } from './AstroChart';
import { TimeSeriesPoint, DataPoint } from './types';
export interface StreamOptions {
    /** Maximum data points to keep */
    maxPoints?: number;
    /** Time window in milliseconds (alternative to maxPoints) */
    timeWindow?: number;
    /** Throttle interval in milliseconds */
    throttleMs?: number;
    /** Buffer size before flushing */
    bufferSize?: number;
    /** Enable data decimation for large datasets */
    decimate?: boolean;
    /** Decimation threshold (start decimating above this count) */
    decimateThreshold?: number;
}
export interface StreamController {
    /** Push a single data point */
    push: (seriesIndex: number, point: TimeSeriesPoint | DataPoint) => void;
    /** Push multiple data points */
    pushBatch: (seriesIndex: number, points: (TimeSeriesPoint | DataPoint)[]) => void;
    /** Clear all data */
    clear: () => void;
    /** Pause streaming */
    pause: () => void;
    /** Resume streaming */
    resume: () => void;
    /** Get current state */
    isPaused: boolean;
    /** Get current point count */
    pointCount: number;
}
export declare function useChartStream(chartRef: React.RefObject<AstroChartHandle>, options?: StreamOptions): StreamController;
export interface WebSocketStreamOptions extends StreamOptions {
    /** WebSocket URL */
    url: string;
    /** Reconnect on disconnect */
    reconnect?: boolean;
    /** Reconnect delay in milliseconds */
    reconnectDelay?: number;
    /** Maximum reconnect attempts */
    maxReconnects?: number;
    /** Message parser */
    parseMessage?: (data: unknown) => {
        seriesIndex: number;
        point: TimeSeriesPoint | DataPoint;
    } | null;
}
export interface WebSocketStreamController extends StreamController {
    /** WebSocket connection state */
    connectionState: "connecting" | "connected" | "disconnected" | "error";
    /** Manually connect */
    connect: () => void;
    /** Manually disconnect */
    disconnect: () => void;
}
export declare function useWebSocketStream(chartRef: React.RefObject<AstroChartHandle>, options: WebSocketStreamOptions): WebSocketStreamController;