import type { MongoStorage } from '../index.js';
import type { CacheConfig, Logger } from '../../../types/index.js';
import type { Contact, WASocket } from '@whiskeysockets/baileys';
import CRUD from './CRUD.js';
import type { Db, ObjectId, WithId } from './CRUD.js';
type ContactAliasMeta = {
    canonicalJid?: string;
    lid?: string;
    pn?: string;
    aliasJids?: string[];
    _dirty?: boolean;
};
type ContactsDoc = Contact & ContactAliasMeta & {
    _id: string | ObjectId;
};
declare class Contacts extends CRUD<ContactsDoc> {
    protected readonly storage: MongoStorage;
    protected readonly sock: WASocket | null;
    static collectionName: string;
    private cache;
    constructor(storage: MongoStorage, mongodb: Db, sock: WASocket | null, logger: Logger | null, cacheConfig: CacheConfig['contacts'] | null);
    private indexes;
    private getCachedContacts;
    private setCachedContacts;
    private markAsDirty;
    private resolveContactIdentity;
    private normalizeContact;
    /**
     * Getter to expose the raw MongoDB collection.
     */
    getCollection(): import("mongodb").Collection<ContactsDoc>;
    /**
     * Retrieve contacts.
     * - If `id` is provided, returns the contact doc for that specific ID or `null` if not found.
     * - If `id` is not provided, returns an array of all contact docs.
     *
     * @param id Contact jid (Optional)
     */
    get(id: string | undefined): Promise<WithId<ContactsDoc> | null>;
    get(): Promise<WithId<ContactsDoc>[]>;
    /**
     * Set multiple contacts (upsert).
     */
    set({ contacts }: {
        contacts: Contact[];
    }): Promise<void>;
    /**
     * Upsert contacts.
     * If the doc for the given contact id doesn't exist, create it.
     * Otherwise, update the existing doc by adding or updating the contact key.
     */
    upsert(contacts: Contact[]): Promise<void>;
    update(updates: Partial<Contact>[]): Promise<void>;
}
export default Contacts;