import * as i0 from '@angular/core';
import { Provider } from '@angular/core';
import { FirebaseApp as FirebaseApp$1 } from 'firebase/app';
import { Query, QueryDocumentSnapshot, DocumentReference, onSnapshot, Firestore } from 'firebase/firestore';
import { onAuthStateChanged, Auth as Auth$1, User } from 'firebase/auth';
import { FirebaseStorage as FirebaseStorage$1 } from 'firebase/storage';
import { Functions as Functions$1 } from 'firebase/functions';
import { Analytics as Analytics$1 } from 'firebase/analytics';
import { Observable } from 'rxjs';

declare abstract class FirebaseApp {
}
declare abstract class Auth {
}
declare abstract class FirebaseStorage {
}
declare abstract class Functions {
}
declare abstract class Analytics {
}
declare const firebaseSdk: {
    onSnapshot: typeof onSnapshot;
    onAuthStateChanged: typeof onAuthStateChanged;
};
/**
 * Wraps onSnapshot for a document reference.
 */
declare function docData<T = any>(ref: DocumentReference<T>): Observable<T | undefined>;
/**
 * Wraps onSnapshot for a query/collection.
 */
declare function collectionSnapshots<T = any>(q: Query<T>): Observable<QueryDocumentSnapshot<T>[]>;
/**
 * Wraps onAuthStateChanged to monitor auth state.
 */
declare function user(auth: Auth): Observable<User | null>;
/**
 * Custom ScreenTrackingService to replace @angular/fire/analytics ScreenTrackingService.
 * Automatically tracks page views on router navigation events.
 */
declare class ScreenTrackingService {
    private analytics;
    private router;
    constructor();
    static ɵfac: i0.ɵɵFactoryDeclaration<ScreenTrackingService, never>;
    static ɵprov: i0.ɵɵInjectableDeclaration<ScreenTrackingService>;
}
declare function provideFirebaseApp(fn: () => FirebaseApp$1): Provider;
declare function provideFirestore(fn: () => Firestore): Provider;
declare function provideAuth(fn: () => Auth$1): Provider;
declare function provideStorage(fn: () => FirebaseStorage$1): Provider;
declare function provideFunctions(fn: () => Functions$1): Provider;
declare function provideAnalytics(fn: () => Analytics$1): Provider;

export { Analytics, Auth, FirebaseApp, FirebaseStorage, Functions, ScreenTrackingService, collectionSnapshots, docData, firebaseSdk, provideAnalytics, provideAuth, provideFirebaseApp, provideFirestore, provideFunctions, provideStorage, user };