/*
 * Copyright 2017-2017 Amazon.com, Inc. or its affiliates. All Rights Reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with
 * the License. A copy of the License is located at
 *
 *     http://aws.amazon.com/apache2.0/
 *
 * or in the "license" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
 * CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions
 * and limitations under the License.
 */

import StorageClass from './Storage';
import { StorageProvider } from './types';

import Amplify, { ConsoleLogger as Logger } from '@aws-amplify/core';

const logger = new Logger('Storage');

let _instance: StorageClass = null;

if (!_instance) {
    logger.debug('Create Storage Instance');
    _instance = new StorageClass();
    _instance.vault = new StorageClass();
    
    const old_configure = _instance.configure;
    _instance.configure = (options) => {
        logger.debug('storage configure called');
        const vaultConfig = {...old_configure.call(_instance, options)};

        // set level private for each provider for the vault
        Object.keys(vaultConfig).forEach((providerName) => {
            if (typeof vaultConfig[providerName] !== 'string') {
                vaultConfig[providerName] = { ...vaultConfig[providerName], level: "private" };
            }
        });
        logger.debug('storage vault configure called');
        _instance.vault.configure(vaultConfig);
    };
}

const Storage = _instance;
Amplify.register(Storage);

export default Storage;
export { StorageClass };
export { StorageProvider };
export * from './Providers';