import { AuthService } from './auth.service';
import { BehaviorSubject, Observable, Subscription } from 'rxjs';
import { Firestore } from '@angular/fire/firestore/lite';
import * as i0 from "@angular/core";
export declare class ChatService {
    authService: AuthService;
    firestore: Firestore;
    chatStarted: BehaviorSubject<boolean>;
    chatsUnread: BehaviorSubject<number>;
    chatObservable: Observable<unknown[]>;
    chatSubscription: Subscription;
    currentNumberOfChats: any;
    auth: any;
    constructor(authService: AuthService, firestore: Firestore);
    loginForChat(): Promise<boolean>;
    listenChatStarted(): BehaviorSubject<boolean>;
    startChat(): void;
    stopChat(): void;
    listenToChatsUnread(): BehaviorSubject<number>;
    resetChatsUnread(): void;
    getChatsByUserObs(serviceRequestId: any): Observable<import("@firebase/firestore/dist/lite").DocumentData[]>;
    getChatsByUser(serviceRequestId: any): Observable<unknown[]>;
    addChat(chat: any): Promise<void>;
    static ɵfac: i0.ɵɵFactoryDeclaration<ChatService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ChatService>;
}