cyphertap/dist/services/logout.js

Nostr, Lightning and Ecash on a single Button component

// src/lib/client/services/logout.ts
import { get } from 'svelte/store';
import { BROWSER as browser } from 'esm-env';
// Import all the stores and methods we need to clean up
import { logout as nostrLogout, currentUser } from '../stores/nostr.js';
import { clearWallet } from '../stores/wallet.js';
import { appState, InitStatus } from './init.svelte.js';
import { createDebug } from '../utils/debug.js';
// Create debug logger for logout service
const d = createDebug('logout');
/**
 * Clear the Nostr IndexedDB cache for a specific user
 * @param npub The user's public key
 */
function clearNostrCache(npub) {
    if (!browser)
        return Promise.resolve();
    const dbName = `nostr-cache-${npub.slice(0, 8)}`;
    d.log(`Deleting IndexedDB database: ${dbName}`);
    return new Promise((resolve, reject) => {
        const deleteRequest = window.indexedDB.deleteDatabase(dbName);
        deleteRequest.onerror = (event) => {
            const error = `Error deleting IndexedDB database: ${dbName}`;
            d.error(error, event);
            reject(new Error(error));
        };
        deleteRequest.onsuccess = () => {
            d.log(`Successfully deleted IndexedDB database: ${dbName}`);
            resolve();
        };
    });
}
/**
 * Complete logout that handles cleaning up all app components
 * @param options Configuration options for logout
 * @returns Promise that resolves when logout is complete
 */
export async function logout(options = {}) {
    // Set defaults
    const { clearDatabase = false } = options;
    try {
        // Update app state
        appState.status = InitStatus.IDLE;
        appState.isInitialized = false;
        appState.error = null;
        // 1. Get current user before logout (if we need to clear the database)
        const user = clearDatabase ? get(currentUser) : null;
        // 2. Clear the wallet state
        clearWallet();
        // 3. Clear cache if requested
        if (clearDatabase && user) {
            d.log('Clearing Nostr database cache');
            try {
                await clearNostrCache(user.npub);
                d.log('Database cache cleared successfully');
            }
            catch (error) {
                d.error('Failed to clear database cache:', error);
                // Continue with logout even if cache clearing fails
            }
        }
        // 4. Use the Nostr logout function to clean up NDK and stored keys
        nostrLogout();
        d.log('Logout complete');
    }
    catch (error) {
        d.error('Error during logout:', error);
        throw error;
    }
}