askexperts/dist/db/utils.js

AskExperts SDK: build and use AI experts - ask them questions and pay with bitcoin on an open protocol

import { DB } from "./index.js";
import { APP_DB_PATH } from "../common/constants.js";
import { DBClient } from "./DBClient.js";
import { DBRemoteClient } from "./DBRemoteClient.js";
import { getCurrentUserId } from "../common/users.js";
import { hexToBytes } from "nostr-tools/utils";
// Singleton DB instance
let dbInstance = null;
/**
 * Get the singleton DB instance
 * @returns The DB instance
 */
export function getDB() {
    if (!dbInstance) {
        dbInstance = new DB(APP_DB_PATH);
    }
    return dbInstance;
}
/**
 * Create a DB remote client instance
 * @param url URL for remote DB client
 * @returns A DB remote client instance
 */
export async function createDBRemoteClient(url) {
    // Get the current user ID
    const userId = getCurrentUserId();
    // Get the user's private key
    const user = await getDB().getUser(userId);
    if (!user) {
        throw new Error(`User with ID ${userId} not found`);
    }
    // Convert the private key string to Uint8Array
    const privkey = hexToBytes(user.privkey);
    // Return a new DBRemoteClient instance with the new object-based constructor
    return new DBRemoteClient({ url, privateKey: privkey });
}
/**
 * Create a DB client instance
 * @param url Optional URL for remote DB client
 * @returns A DB client instance (DBClient if url is undefined, DBRemoteClient otherwise)
 */
export async function createDBClient(url) {
    if (url)
        return createDBRemoteClient(url);
    // Return a new DBClient instance
    return new DBClient();
}
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