// Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
// SPDX-License-Identifier: Apache-2.0

import {
	PasskeyCreateOptionsJson,
	PasskeyCreateResultJson,
	assertCredentialIsPkcWithAuthenticatorAttestationResponse,
} from './types';
import {
	deserializeJsonToPkcCreationOptions,
	serializePkcWithAttestationToJson,
} from './serde';
import {
	PasskeyErrorCode,
	assertPasskeyError,
	handlePasskeyRegistrationError,
} from './errors';
import { getIsPasskeySupported } from './getIsPasskeySupported';

/**
 * Registers a new passkey for user
 * @param input - PasskeyCreateOptionsJson
 * @returns serialized PasskeyCreateResult
 */
export const registerPasskey = async (
	input: PasskeyCreateOptionsJson,
): Promise<PasskeyCreateResultJson> => {
	try {
		const isPasskeySupported = getIsPasskeySupported();

		assertPasskeyError(
			isPasskeySupported,
			PasskeyErrorCode.PasskeyNotSupported,
		);

		const passkeyCreationOptions = deserializeJsonToPkcCreationOptions(input);

		const credential = await navigator.credentials.create({
			publicKey: passkeyCreationOptions,
		});

		assertCredentialIsPkcWithAuthenticatorAttestationResponse(credential);

		return serializePkcWithAttestationToJson(credential);
	} catch (err) {
		throw handlePasskeyRegistrationError(err);
	}
};