import { EventEmitter, OnDestroy } from '@angular/core';
import { AppContextService } from '../../service/app-context.service';
import { DataTableComponent } from './data-table.component';
import * as i0 from "@angular/core";
export declare enum DataTableDownloadDataType {
    CSV = "text/csv",
    JSON = "application/json"
}
export declare class DataTableDownloadService implements OnDestroy {
    private appContextService;
    /**
     * The localization strings object for master view.
     */
    resourceStrings: any;
    /**
     * The download finished event emitter.
     */
    downloadDataFinished: EventEmitter<void>;
    /**
     * The notification instance.
     */
    private notificationInstance;
    /**
     * The download worker.
     */
    private worker;
    /**
     * The current extension/module fileName.
     */
    private moduleName;
    /**
     * Determines if one download service is ongoing.
     */
    private isBusy;
    /**
     * Adding a force delay time can help with general performance of the downloading function when dataset grows big.
     * It can also help with improve granularity for notification state changes.
     */
    private readonly minDownloadDelayTime;
    /**
     * Force timeout 2mins.
     */
    private readonly maxDownloadTimeAllowed;
    constructor(appContextService: AppContextService);
    ngOnDestroy(): void;
    downloadData(dataTable: DataTableComponent, downloadType: DataTableDownloadDataType, contextParameters?: any): void;
    /**
     * It guarantees the valid DataTableDownloadDataType is passed in to the worker.
     * @param downloadType the downloadType passed in from client side that needs validation.
     * @returns a valid downloadType that comes from DataTableDownloadDataType
     */
    private validateMimeType;
    /**
     * The actual implementation core function for download data.
     * @param dataTable the data table component reference.
     * @param downloadType the downloadType passed in from client.
     * @returns parsed error in string.
     */
    private downloadDataCore;
    private downloadAction;
    private convertToCsv;
    /**
     * It converts any type to string.
     * @param input any type of input.
     * @returns the string representation for input.
     */
    private castToString;
    /**
     * Prevents space to be recognized as different columns.
     * The solution is to wrap the string with double quote and still forms a valid string.
     * @param value The input string that needs to wrap with double quote.
     * @returns the string wrapped with double quotes and is still a valid string.
     */
    private preventTextContentAsSeparatedColumns;
    /**
     * It gets the rendered string from the rendered table row and cell.
     * @param rowIndex the row index from the data table.
     * @param columnIndex the column index from the data table.
     * @param dataTable the data table component reference.
     * @returns the string representing the rendered data from DOM.
     */
    private getTableCellRenderedString;
    /**
     * The initialization for the worker to be used for downloading data table text content.
     */
    private initWorker;
    static ɵfac: i0.ɵɵFactoryDeclaration<DataTableDownloadService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<DataTableDownloadService>;
}