/*
 * Copyright 2013-2020 the original author or authors.
 *
 * 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
 *
 *      https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License 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 org.springframework.cloud.contract.verifier.messaging.camel;

import org.apache.camel.CamelContext;
import org.apache.camel.ConsumerTemplate;
import org.apache.camel.Message;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.spring.boot.CamelAutoConfiguration;

import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.ConditionalOnClass;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.contract.verifier.messaging.MessageVerifier;
import org.springframework.cloud.contract.verifier.messaging.internal.ContractVerifierMessage;
import org.springframework.cloud.contract.verifier.messaging.internal.ContractVerifierMessaging;
import org.springframework.cloud.contract.verifier.messaging.jms.ContractVerifierJmsConfiguration;
import org.springframework.cloud.contract.verifier.messaging.noop.NoOpContractVerifierAutoConfiguration;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.context.annotation.Import;

/**
 * @author Marcin Grzejszczak
 */
@Configuration(proxyBeanMethods = false)
@ConditionalOnClass(Message.class)
@Import(CamelAutoConfiguration.class)
@ConditionalOnProperty(name = "stubrunner.camel.enabled", havingValue = "true", matchIfMissing = true)
@AutoConfigureBefore({ NoOpContractVerifierAutoConfiguration.class, ContractVerifierJmsConfiguration.class })
public class ContractVerifierCamelConfiguration {

	@Bean
	@ConditionalOnMissingBean
	MessageVerifier<Message> contractVerifierMessageExchange(CamelContext camelContext,
			ProducerTemplate producerTemplate, ConsumerTemplate consumerTemplate) {
		return new CamelStubMessages(camelContext, producerTemplate, consumerTemplate);
	}

	@Bean
	@ConditionalOnMissingBean
	public ContractVerifierMessaging<Message> contractVerifierMessaging(MessageVerifier<Message> exchange) {
		return new ContractVerifierCamelHelper(exchange);
	}

}

class ContractVerifierCamelHelper extends ContractVerifierMessaging<Message> {

	ContractVerifierCamelHelper(MessageVerifier<Message> exchange) {
		super(exchange);
	}

	@Override
	protected ContractVerifierMessage convert(Message receive) {
		if (receive == null) {
			return null;
		}
		return new ContractVerifierMessage(receive.getBody(), receive.getHeaders());
	}

}
