/*
 * Copyright 2012-2013 Amazon Technologies, Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *    http://aws.amazon.com/apache2.0
 *
 * 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.
 */
package com.amazonaws.memes;

import com.amazonaws.auth.AWSCredentialsProvider;
import com.amazonaws.auth.ClasspathPropertiesFileCredentialsProvider;
import com.amazonaws.regions.Region;
import com.amazonaws.regions.Regions;
import com.amazonaws.services.dynamodbv2.AmazonDynamoDBClient;
import com.amazonaws.services.dynamodbv2.datamodeling.DynamoDBMapper;
import com.amazonaws.services.dynamodbv2.model.AttributeDefinition;
import com.amazonaws.services.dynamodbv2.model.CreateTableRequest;
import com.amazonaws.services.dynamodbv2.model.KeySchemaElement;
import com.amazonaws.services.dynamodbv2.model.KeyType;
import com.amazonaws.services.dynamodbv2.model.ProvisionedThroughput;
import com.amazonaws.services.dynamodbv2.model.ScalarAttributeType;
import com.amazonaws.services.dynamodbv2.util.Tables;
import com.amazonaws.services.s3.AmazonS3Client;
import com.amazonaws.services.s3.model.CreateBucketRequest;
import com.amazonaws.services.sqs.AmazonSQSClient;
import com.amazonaws.services.sqs.model.CreateQueueRequest;

/**
 * Configuration for AWS resources. Run this class to create your resources for
 * the Meme Generator sample application.
 */
public class AWSResources {

    public static final String S3_BUCKET_NAME = "reinvent-meme-generator";
    public static final String SQS_QUEUE_NAME = "reinvent-memes";
    public static final String DYNAMODB_TABLE_NAME = "reinvent-memes";

    public static final String MACRO_PATH = "macros/";
    public static final String FINISHED_PATH = "memes/";

    /*
     * The SDK provides several easy to use credentials providers.
     * Here we're loading our AWS security credentials from a properties
     * file on our classpath.
     */
    public static final AWSCredentialsProvider CREDENTIALS_PROVIDER =
            new ClasspathPropertiesFileCredentialsProvider();

    /*
     * This controls the AWS region used for created resources. You can easily
     * deploy applications in any or all of the AWS regions around the world,
     * allowing you to provide a lower latency and better experience for your
     * customers.
     */
    public static final Region REGION = Region.getRegion(Regions.US_WEST_1);

    /*
     * We construct our clients to access AWS here, so that we can share them
     * easily throughout our application.
     */
    public static final AmazonS3Client S3 = new AmazonS3Client(CREDENTIALS_PROVIDER);
    public static final AmazonSQSClient SQS = new AmazonSQSClient(CREDENTIALS_PROVIDER);
    public static final AmazonDynamoDBClient DYNAMODB = new AmazonDynamoDBClient(CREDENTIALS_PROVIDER);
    public static final DynamoDBMapper DYNAMODB_MAPPER = new DynamoDBMapper(DYNAMODB, CREDENTIALS_PROVIDER);


    static {
        /*
         * Set any other client options that you need here. For example, if you
         * connect to the internet through a proxy, then call setConfiguration
         * and pass in a ClientConfiguration object with your proxy settings.
         *
         * Here we set our region, so that we can keep our data located in the
         * same region.
         */
        DYNAMODB.setRegion(REGION);
        SQS.setRegion(REGION);
    }


    public static void main(String[] args) {
        String queueUrl = SQS.createQueue(new CreateQueueRequest(SQS_QUEUE_NAME)).getQueueUrl();
        System.out.println("Using Amazon SQS Queue: " + queueUrl);


        if ( !S3.doesBucketExist(S3_BUCKET_NAME) ) {
            S3.createBucket(new CreateBucketRequest(S3_BUCKET_NAME));
        }
        System.out.println("Using Amazon S3 Bucket: " + S3_BUCKET_NAME);


        if ( !Tables.doesTableExist(DYNAMODB, DYNAMODB_TABLE_NAME) ) {
            System.out.println("Creating new AWS DynamoDB Table...");
            DYNAMODB.createTable(new CreateTableRequest()
                    .withTableName(DYNAMODB_TABLE_NAME)
                    .withKeySchema(new KeySchemaElement("id", KeyType.HASH))
                    .withAttributeDefinitions(new AttributeDefinition("id", ScalarAttributeType.S))
                    .withProvisionedThroughput(new ProvisionedThroughput(50l, 50l)));
        }
        Tables.waitForTableToBecomeActive(DYNAMODB, DYNAMODB_TABLE_NAME);
        System.out.println("Using AWS DynamoDB Table: " + DYNAMODB_TABLE_NAME);
    }
}