/*
 * Copyright Amazon.com, Inc. or its affiliates. All Rights Reserved.
 * SPDX-License-Identifier: MIT-0
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy of this
 * software and associated documentation files (the "Software"), to deal in the Software
 * without restriction, including without limitation the rights to use, copy, modify,
 * merge, publish, distribute, sublicense, and/or sell copies of the Software, and to
 * permit persons to whom the Software is furnished to do so.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED,
 * INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
 * PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
 * OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */
package amazon.aws.samples.kafka;

import org.apache.kafka.clients.CommonClientConfigs;
import org.apache.kafka.clients.admin.AdminClient;
import org.apache.kafka.clients.admin.AdminClientConfig;
import org.apache.kafka.clients.consumer.ConsumerConfig;
import org.apache.kafka.common.config.SslConfigs;
import org.apache.kafka.common.serialization.ByteArrayDeserializer;
import org.apache.kafka.common.serialization.StringDeserializer;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.beans.factory.annotation.Value;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;
import org.springframework.kafka.annotation.EnableKafka;
import org.springframework.kafka.config.ConcurrentKafkaListenerContainerFactory;
import org.springframework.kafka.core.ConsumerFactory;
import org.springframework.kafka.core.DefaultKafkaConsumerFactory;
import org.springframework.kafka.support.converter.ByteArrayJsonMessageConverter;
import software.amazon.awssdk.auth.credentials.AwsCredentialsProvider;
import software.amazon.awssdk.auth.credentials.DefaultCredentialsProvider;
import software.amazon.awssdk.auth.credentials.ProfileCredentialsProvider;
import software.amazon.awssdk.regions.Region;
import software.amazon.awssdk.services.dynamodb.DynamoDbClient;
import software.amazon.awssdk.utils.StringUtils;

import java.util.HashMap;
import java.util.Map;

//@Import(KafkaConsumerProperties.class)
@EnableKafka
@Configuration
public class ApplicationConfig {
    private static final Logger LOGGER = LoggerFactory.getLogger(ApplicationConfig.class);

    @Bean
    public AdminClient adminClient(KafkaConsumerProperties properties) {
        Map<String, Object> configs = new HashMap<>();
        configs.put(AdminClientConfig.BOOTSTRAP_SERVERS_CONFIG, properties.getBootstrapAddress());
        configs.put(CommonClientConfigs.SECURITY_PROTOCOL_CONFIG, "SSL");
        configs.put(SslConfigs.SSL_TRUSTSTORE_LOCATION_CONFIG, properties.getTrustStoreLocation());
        return AdminClient.create(configs);
    }

    @Bean
    public ConsumerFactory<String, byte[]> consumerFactory(KafkaConsumerProperties properties) {
        Map<String, Object> configs = new HashMap<>();
        configs.put(ConsumerConfig.BOOTSTRAP_SERVERS_CONFIG, properties.getBootstrapAddress());
        configs.put(ConsumerConfig.GROUP_ID_CONFIG, properties.getGroupId());
        configs.put(ConsumerConfig.KEY_DESERIALIZER_CLASS_CONFIG, StringDeserializer.class);
        configs.put(ConsumerConfig.VALUE_DESERIALIZER_CLASS_CONFIG, ByteArrayDeserializer.class);
        configs.put(CommonClientConfigs.SECURITY_PROTOCOL_CONFIG, "SSL");
        configs.put(SslConfigs.SSL_TRUSTSTORE_LOCATION_CONFIG, properties.getTrustStoreLocation());
        LOGGER.info(configs.toString());

        return new DefaultKafkaConsumerFactory<>(configs);
    }

    @Bean
    public ConcurrentKafkaListenerContainerFactory<?, ?> kafkaListenerContainerFactory(ConsumerFactory<String, byte[]> consumerFactory) {
        ConcurrentKafkaListenerContainerFactory<String, byte[]> factory = new ConcurrentKafkaListenerContainerFactory<>();
        factory.setConsumerFactory(consumerFactory);
        factory.setMessageConverter(new ByteArrayJsonMessageConverter());
        return factory;
    }

    @Bean
    public AwsCredentialsProvider awsCredentialsProvider(KafkaConsumerProperties properties) {
        LOGGER.info("AWS profile: " + properties.getAwsProfile());
        return StringUtils.isNotBlank(properties.getAwsProfile()) ? ProfileCredentialsProvider.create(properties.getAwsProfile()) : DefaultCredentialsProvider.create();
    }

    @Bean
    public Region awsRegion(KafkaConsumerProperties properties) {
        LOGGER.info("Region: " + properties.getRegion());
        return Region.of(properties.getRegion());
    }

    @Bean
    public DynamoDbClient dynamoDbClient(AwsCredentialsProvider credentialsProvider, Region region) {
        return DynamoDbClient.builder()
                .credentialsProvider(credentialsProvider)
                .region(region)
                .build();
    }
}