import { Observable } from "rxjs";
import { NostrEvent } from "../helpers/event.js";
import { Filter } from "../helpers/filter.js";
import { ProfilePointer } from "../helpers/pointers.js";
import { ChainableObservable } from "../observable/chainable.js";
import type { CastConstructor, CastRefEventStore } from "./cast.js";
import { PubkeyCast } from "./pubkey.js";
import { EventCast } from "./event.js";
/** Cast a Nostr event or pointer into a {@link User} */
export declare function castUser(event: NostrEvent, store: CastRefEventStore): User;
export declare function castUser(user: string | ProfilePointer, store: CastRefEventStore): User;
/** A class representing a Nostr user */
export declare class User extends PubkeyCast {
    /** A global cache of pubkey -> weak {@link User} reference */
    static cache: Map<string, WeakRef<User>>;
    /** Returns the NIP-19 npub for this user */
    get npub(): `npub1${string}`;
    /** Returns the NIP-19 nprofile for this user */
    get nprofile(): `nprofile1${string}`;
    /** Subscribe to a replaceable event for this user */
    replaceable(kind: number, identifier?: string, relays?: string[]): ChainableObservable<NostrEvent | undefined>;
    /** Subscribe to an addressable event for this user */
    addressable(kind: number, identifier: string, relays?: string[]): ChainableObservable<NostrEvent | undefined>;
    /**
     * Creates an observable of a timeline of events created by this user
     * @param input - The filter(s) for the timeline or kind(s)
     * @returns A timeline observable of events by the user rom the event store
     */
    timeline$(input: Omit<Filter, "authors"> | Omit<Filter, "authors">[] | number | number[]): Observable<NostrEvent[]>;
    timeline$<T extends EventCast>(input: Omit<Filter, "authors"> | Omit<Filter, "authors">[] | number | number[], cast?: CastConstructor<T>): Observable<T[]>;
}