applesauce-wallet-connect/dist/helpers/notification.js

NIP-47 Nostr Wallet Connect implementation for both clients and services.

import { getHiddenContent, isHiddenContentUnlocked, notifyEventUpdate, setHiddenContentEncryptionMethod, unlockHiddenContent, } from "applesauce-core/helpers";
export const WALLET_NOTIFICATION_KIND = 23197;
export const WALLET_LEGACY_NOTIFICATION_KIND = 23196;
/** A symbol used to cache the wallet notification on the event */
export const WalletNotificationSymbol = Symbol("wallet-notification");
// Setup the encryption method to use for notification kinds
setHiddenContentEncryptionMethod(WALLET_NOTIFICATION_KIND, "nip44");
setHiddenContentEncryptionMethod(WALLET_LEGACY_NOTIFICATION_KIND, "nip04");
/** Checks if a kind 23196 or 23197 event is locked */
export function isWalletNotificationUnlocked(notification) {
    // Wrap in try catch to avoid throwing validation errors
    try {
        return (WalletNotificationSymbol in notification ||
            (isHiddenContentUnlocked(notification) && getWalletNotification(notification) !== undefined));
    }
    catch { }
    return false;
}
/** Unlocks a kind 23196 or 23197 event */
export async function unlockWalletNotification(notification, signer) {
    if (WalletNotificationSymbol in notification)
        return notification[WalletNotificationSymbol];
    await unlockHiddenContent(notification, signer);
    const parsed = getWalletNotification(notification);
    if (!parsed)
        throw new Error("Failed to unlock wallet notification");
    return parsed;
}
/** Gets the wallet notification from a kind 23196 or 23197 event */
export function getWalletNotification(notification) {
    if (WalletNotificationSymbol in notification)
        return notification[WalletNotificationSymbol];
    // Get the encrypted content
    const content = getHiddenContent(notification);
    if (!content)
        return undefined;
    // Parse the content as a wallet notification
    const parsed = JSON.parse(content);
    // Save the parsed content
    Reflect.set(notification, WalletNotificationSymbol, parsed);
    notifyEventUpdate(notification);
    return parsed;
}
/** Checks if an event is a valid wallet notification event */
export function isValidWalletNotification(notification) {
    return notification.kind === WALLET_NOTIFICATION_KIND || notification.kind === WALLET_LEGACY_NOTIFICATION_KIND;
}