import { Option, ReplyItem } from '../../classes';
import { PieChartComponent, BarHorizontalComponent } from '@swimlane/ngx-charts';
import { Observable } from 'rxjs';
import { DatePipe } from '@angular/common';
import { PhoneNumberPipe } from '@schoolbelle/common/phone-number';
import { ExcelService } from '@schoolbelle/common/excel';
import { RepliesService } from '../../services';
import { PartialOption } from './charts.types';
export declare class ChartsService {
    protected replies: RepliesService;
    protected excel: ExcelService;
    protected datePipe: DatePipe;
    protected phoneNumberPipe: PhoneNumberPipe;
    private _data;
    constructor(replies: RepliesService, excel: ExcelService, datePipe: DatePipe, phoneNumberPipe: PhoneNumberPipe);
    get(q_id: any): BarHorizontalComponent | PieChartComponent;
    set(q_id: string, chart: PieChartComponent | BarHorizontalComponent): void;
    getColor(option: Option): string;
    downloadCharts(elements: NodeList): Observable<{}>;
    chartToImageBlob(el: Node): Observable<any>;
    downloadExcel(list: ReplyItem[], options: Array<PartialOption>, title?: string): Observable<any>;
    private toExcelDataInBase64;
    filterReplies(list: ReplyItem[], o: PartialOption): ReplyItem[];
    getCheckTimestamp(li: ReplyItem, o: PartialOption): number;
}