import Long from 'long';
import { Frame, FixedPosFrameIdentifier } from '../models';
/**
 * Interface for signal data.
 */
export interface ISignalData {
    /** The qualified name of the signal. */
    qualifiedName: string;
    /** The source identifier of the signal. */
    sourceId?: string;
    /** The name of the signal. */
    name: string;
    /** The unit of the signal. */
    unit: string;
    /** The timestamp of the signal data in microseconds. */
    timeUs: Long;
    /** The double value of the signal. */
    doubleValue: number;
    /** Optional string value of the signal. */
    stringValue?: string;
}
/**
 * Initialization state for signal data hook.
 * @internal
 */
export declare enum SignalDataInitState {
    /** Not yet initialized */
    PENDING = "pending",
    /** Frame keys loaded, waiting for historical data */
    FRAME_KEYS_READY = "frameKeysReady",
    /** Historical data loaded, waiting for frame keys */
    HISTORICAL_DATA_READY = "historicalDataReady",
    /** Fully initialized and ready to process data */
    READY = "ready"
}
/**
 * Interface for signal data envelope.
 * Each envelope contains arrays of time, min, and max values for a signal.
 * All arrays are aligned by index.
 */
export interface ISignalDataEnvelope {
    /** The qualified name of the signal. */
    qualifiedName: string;
    /** The source identifier of the signal. */
    sourceId?: string;
    /** The timestamps of the signal data in microseconds. */
    timeUs: number[];
    /** The minimum values of the signal data. */
    min: number[];
    /** The maximum values of the signal data. */
    max: number[];
}
/**
 * Interface for envelope view parameters.
 */
export interface IEnvelopeView {
    /** The start time of the view in microseconds. */
    startTimeUs?: number;
    /** The end time of the view in microseconds. */
    endTimeUs?: number;
    /** The time window of the view in microseconds. If start and end is not set then this defines the window. */
    windowUs?: number;
    /** The width of the view in pixels. */
    width?: number;
    /** Optional counter to force update the envelopes. Change it to trigger a refresh even if other parameters have not changed. */
    forceUpdateCounter?: number;
}
/**
 * A hook for extracting message data from the measurement context.
 *
 * @remarks
 * This hook buffers incoming frame data during initialization (before historical data is ready)
 * and merges it with historical data once available. This ensures no data is lost during the startup phase.
 *
 * @param id - The unique id of the view. This is passed to the view component as the `id` prop.
 * @param subscriptionName - The subscription name for the data. Must be unique per view.
 * @param identifiers - The fixed position frame identifiers to get data for. To avoid unnecessary re-renders, make sure to memoize this object.
 * @returns The measurement data for the specified identifiers. If an empty array is returned, then all previously received data is invalid and should be discarded.
 */
export declare const useMessageData: (id: number, subscriptionName: string, identifiers: FixedPosFrameIdentifier[]) => Frame[];
/**
 * A hook for extracting signal data from the measurement context.
 *
 * @remarks
 * This hook buffers incoming frame data during initialization (before frame keys and historical data are ready)
 * and merges it with historical data once available.
 *
 * @param id - The unique id of the view.
 * @param subscriptionName - The subscription name for the data. Must be unique per view.
 * @param subscribedSignals - The signals to extract data for. To avoid unnecessary re-renders, memoize this object.
 * @returns The extracted signal data. If an empty array is returned, all previously received data is invalid and should be discarded.
 */
export declare const useSignalData: (id: number, subscriptionName: string, subscribedSignals: {
    qualifiedName: string;
    sourceId?: string;
}[]) => ISignalData[];
/**
 * A hook for extracting signal data envelopes to be used for graphical visualization.
 *
 * @param id - The unique id of the view.
 * @param subscriptionName - The subscription name for the data. Must be unique per view.
 * @param subscribedSignals - The subscribed signals with their qualified names and optional source identifiers.
 * @param view - Optional view parameters to define the time range and width for the envelopes.
 * @returns The extracted signal data envelopes.
 */
export declare const useSignalDataEnvelopes: (id: number, subscriptionName: string, subscribedSignals: {
    qualifiedName: string;
    sourceId?: string;
}[], view: IEnvelopeView) => ISignalDataEnvelope[];