/* 
 * Copyright 2018 Amazon.com, Inc. and its affiliates. All Rights Reserved.
 *
 * SPDX-License-Identifier: LicenseRef-.amazon.com.-AmznSL-1.0
 *
 * Licensed under the Amazon Software License (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/asl/
 *
 * 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 { SkillBuilders, HandlerInput, DynamoDbPersistenceAdapter } from 'ask-sdk';
import { ConfigAccessor, SFBRequestHandlerFactory, UserAgentHelper } from '@alexa-games/sfb-skill';
import * as path from 'path';

import { ExtensionLoader } from './extensions/ExtensionLoader';

const projectRootPath = __dirname;
const configAccessor = new ConfigAccessor(require(path.resolve("abcConfig", "abcConfig.json")), path.resolve(projectRootPath, 'res'));

/**
 * Skill handler (Request Entry Point)
 */
export async function handler(event: any, context: any, callback: any) {
    const debug = configAccessor.isDebug();

    if(debug) {
	  console.log(`[INFO] Request Received: ${JSON.stringify(event, ((key, value) =>
	    key === 'apiAccessToken' ? null : value), 4)}`);
    }

	const customExtensionLoader = new ExtensionLoader({
		locale: event.request.locale,
		configAccessor
	});

	const sfbHandler = SFBRequestHandlerFactory.create(event, context, customExtensionLoader.getExtensions(), configAccessor, projectRootPath);
	
	// Assign what requests should be handled by SFB
	sfbHandler.canHandle = function(handlerInput : HandlerInput): boolean {
		return true; // handle every request for now.
	}

	const skill = SkillBuilders.custom()
		.addRequestHandlers(
			sfbHandler
		)
		.withPersistenceAdapter(
			new DynamoDbPersistenceAdapter({
				tableName : sfbHandler.getTableName(),
				createTable: true
			})
		)
		.withCustomUserAgent(UserAgentHelper.createCustomUserAgent())
		.create();
	
	const response = await skill.invoke(event, context);

    if(debug) {
    	console.log(`[INFO] Outgoing Response: ${JSON.stringify(response, null, 4)}`);
	}

	return response;
}