/**
 * Copyright © 2023 Nevis Security AG. All rights reserved.
 */

import { Server } from './Server';

/**
 * The object representing a user account.
 *
 * An `Account` is created when a FIDO UAF registration is completed successfully.
 */
export abstract class Account {
	/**
	 * The username associated with the {@link Account}. This is a unique identifier.
	 * Depending on the backend, the username can be a UUID, an email or a login ID.
	 * `username` is used because it matches the nomenclature used in the FIDO UAF
	 * specification to refer to a user unique identifier.
	 *
	 * The SDK does not support having identities with the same `username` defined
	 * in different servers. So, the `username` is unique among the identities in
	 * all servers.
	 */
	abstract username: string;

	/**
	 * The object describing the server where the account is defined.
	 */
	abstract server: Server;

	/**
	 * Alternate constructor that creates an {@link Account} from a json.
	 *
	 * @param json contains the source for instance creation.
	 * @returns an {@link Account} instance.
	 */
	static fromJson(json: any): Account {
		return AccountImpl.fromJson(json);
	}
}

class AccountImpl extends Account {
	username: string;
	server: Server;

	constructor(username: string, server: Server) {
		super();
		this.username = username;
		this.server = server;
	}

	static fromJson(json: any): AccountImpl {
		const server = Server.fromJson(json.server);
		return new AccountImpl(json.username, server);
	}
}