import { IServerSideDatasource, IServerSideGetRowsParams } from '@ag-grid-community/core';
import { RequestServerResult, DatasourceOptions } from '@genesislcap/foundation-comms';
import { ServerSideDatasourceOptions } from './base.types';
import { BaseServerSideDatasource } from './server-side.resource-base';
/**
 * The REQUEST_SERVER IServerSideDatasource implementation, used for SSRM (Server-Side Row Model) in the grid.
 * @beta
 */
export declare class ReqRepServerSideDatasource extends BaseServerSideDatasource implements IServerSideDatasource {
    createReqRepRequestFunc: (existingParams?: any) => Promise<RequestServerResult>;
    /**
     * Function to create a polling stream with a separate datasource instance.
     * @remarks Optional - only set when polling is enabled (!isSnapshot && !disablePolling).
     */
    private createReqRepStreamFunc?;
    /**
     * The active polling stream observable.
     */
    private reqRepPollingStream?;
    /**
     * Subscription to the polling stream.
     */
    private reqRepPollingSubscription?;
    /**
     * Separate datasource instance used exclusively for polling.
     * @remarks Maintains its own lifecycle independent of the snapshot datasource.
     */
    private reqRepPollingDatasource?;
    /**
     * Whether polling is enabled for this datasource.
     */
    private usePolling;
    /**
     * Callback to apply polling updates at the parent datasource level.
     */
    private onPollingUpdate?;
    /**
     * Callback to reset the previous poll comparison state.
     */
    private resetPreviousPollResult?;
    /**
     * Current request parameters used for the active polling stream.
     * @remarks Used to detect if parameters changed (user scrolled away).
     */
    private currentStreamParams?;
    /**
     * Debounced function for creating polling streams.
     * @remarks Prevents excessive stream recreation during rapid scrolling.
     */
    private debouncedCreateStream;
    private discoveredTotalRowCount;
    private currentNextOffset;
    constructor(options: ServerSideDatasourceOptions);
    getRows(params: IServerSideGetRowsParams): Promise<void>;
    /**
     * Update pagination params based on paging mode
     */
    private updatePaginationParams;
    /**
     * Determine if this is the last view/page
     */
    private determineIsLastView;
    /**
     * Schedules polling stream creation if enabled.
     * @remarks
     * Destroys any existing stream and schedules a new one after the user stops scrolling (debounced).
     * This prevents excessive stream recreation during rapid scrolling.
     */
    private schedulePollingStream;
    private applyServerSideData;
    protected getCorrectRowCount(params: IServerSideGetRowsParams): number;
    private handleCurrentStreamLoad;
    /**
     * Req-rep specific sorting setup that allows any column to be sorted
     * (unlike dataserver which requires indexed columns only)
     */
    protected setupSorting(params: IServerSideGetRowsParams): Promise<void>;
    refreshDatasource(params: DatasourceOptions): Promise<void>;
    destroy(): Promise<void>;
    /**
     * Creates a polling stream for the currently loaded data.
     * @remarks
     * This method creates a separate datasource instance that polls all currently loaded rows
     * (from offset 0 to current offset + maxRows). The polling results are sent to the parent
     * datasource via the `onPollingUpdate` callback for change detection and grid updates.
     *
     * The stream will only apply updates if the request params haven't changed (user hasn't
     * scrolled away or changed filters/sorting).
     * @param requestParams - The request parameters for the current view
     */
    private createPollingStream;
    /**
     * Destroys the current polling stream and associated datasource.
     * @remarks
     * Cleans up the polling subscription, destroys the separate polling datasource instance,
     * and resets the previous poll comparison state. Called when:
     * - User scrolls to a new page
     * - Filters or sorting changes
     * - The datasource is being destroyed
     */
    private destroyPollingStream;
    private buildRequestDetails;
}
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