import * as firebase from 'firebase';
import 'firebase/firestore';
export declare class FirestoreProvider {
    db: firebase.firestore.Firestore;
    constructor();
    /**
     * Gets snapshot from a collection
     * @param path collection's path
     */
    getCollection(path: string): Promise<firebase.firestore.QuerySnapshot>;
    /**
     * Gets the reference from a collection
     * @param path collection's path
     */
    watchCollection(path: string): firebase.firestore.CollectionReference;
    /**
     * Adds a document do a collection
     * @param path collection's path
     * @param doc document to create
     */
    addToCollection(path: string, doc: any): Promise<firebase.firestore.DocumentReference>;
    /**
     * Gets a snapshot from a document
     * @param path document's path
     */
    getDocument(path: string): Promise<firebase.firestore.DocumentSnapshot>;
    /**
     * Gets the reference from a document
     * @param path document's path
     */
    watchDocument(path: string): firebase.firestore.DocumentReference;
    /**
     * Creates a document if it does not exists or update existing document
     * @param path document's path
     * @param doc document to create or update
     */
    addDocument(path: string, doc: any): Promise<void>;
    /**
     * Creates a batch, saves the documents array and commits it
     * @param path collection's path
     * @param docsArray documents to add
     */
    addDocumentsInBatch(path: string, docsArray: Array<Object>): any;
    /**
     * Update a document with new fields
     * @param path document's path
     * @param doc doc with new fields to update
     */
    updateDocument(path: string, doc: any): Promise<void>;
    /**
     * Deletes document
     * @param path document's path
     */
    removeDocument(path: string): Promise<void>;
    /**
     * Close all subscriptions
     * @param subscriptions object with subscriptions to close
     */
    unsubscribe(subscriptions: any): any;
}