import { HiddenContentSigner, KnownEvent, UnlockedHiddenContent } from "applesauce-core/helpers";
import { NostrEvent } from "applesauce-core/helpers/event";
import { Transaction } from "./methods.js";
export declare const WALLET_NOTIFICATION_KIND = 23197;
export declare const WALLET_LEGACY_NOTIFICATION_KIND = 23196;
/** A type for validated wallet notification events */
export type WalletNotificationEvent = KnownEvent<typeof WALLET_NOTIFICATION_KIND> | KnownEvent<typeof WALLET_LEGACY_NOTIFICATION_KIND>;
/** A symbol used to cache the wallet notification on the event */
export declare const WalletNotificationSymbol: unique symbol;
/** A type for unlocked notifications events */
export type UnlockedWalletNotification = UnlockedHiddenContent & {
    [WalletNotificationSymbol]: WalletNotification;
};
/** Supported notification types */
export type NotificationType = "payment_received" | "payment_sent";
/** Base notification structure */
export interface BaseNotification<TNotificationType extends NotificationType, TNotification> {
    /** Indicates the structure of the notification field */
    notification_type: TNotificationType;
    /** Notification data */
    notification: TNotification;
}
/** Payment received notification */
export type PaymentReceivedNotification = BaseNotification<"payment_received", Transaction>;
/** Payment sent notification */
export type PaymentSentNotification = BaseNotification<"payment_sent", Transaction>;
/** Union type for all NIP-47 notification types */
export type WalletNotification = PaymentReceivedNotification | PaymentSentNotification;
/** Checks if a kind 23196 or 23197 event is locked */
export declare function isWalletNotificationUnlocked(notification: any): notification is UnlockedWalletNotification;
/** Unlocks a kind 23196 or 23197 event */
export declare function unlockWalletNotification(notification: NostrEvent, signer: HiddenContentSigner): Promise<WalletNotification | undefined>;
/** Gets the wallet notification from a kind 23196 or 23197 event */
export declare function getWalletNotification(notification: NostrEvent): WalletNotification | undefined;
/** Checks if an event is a valid wallet notification event */
export declare function isValidWalletNotification(notification: NostrEvent): notification is WalletNotificationEvent;