/*
 * Copyright 2013-2019 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.consul.serviceregistry;

import com.ecwid.consul.v1.ConsulClient;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.autoconfigure.AutoConfigureBefore;
import org.springframework.boot.autoconfigure.condition.AllNestedConditions;
import org.springframework.boot.autoconfigure.condition.ConditionalOnMissingBean;
import org.springframework.boot.autoconfigure.condition.ConditionalOnProperty;
import org.springframework.cloud.client.serviceregistry.ServiceRegistryAutoConfiguration;
import org.springframework.cloud.commons.util.InetUtils;
import org.springframework.cloud.consul.ConditionalOnConsulEnabled;
import org.springframework.cloud.consul.discovery.ConsulDiscoveryProperties;
import org.springframework.cloud.consul.discovery.HeartbeatProperties;
import org.springframework.cloud.consul.discovery.TtlScheduler;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Conditional;
import org.springframework.context.annotation.Configuration;

/**
 * @author Spencer Gibb
 * @author Tim Ysewyn
 */
@Configuration(proxyBeanMethods = false)
@ConditionalOnConsulEnabled
@Conditional(ConsulServiceRegistryAutoConfiguration.OnConsulRegistrationEnabledCondition.class)
@AutoConfigureBefore(ServiceRegistryAutoConfiguration.class)
public class ConsulServiceRegistryAutoConfiguration {

	@Bean
	@ConditionalOnMissingBean
	public ConsulServiceRegistry consulServiceRegistry(ConsulClient consulClient,
			ConsulDiscoveryProperties properties, HeartbeatProperties heartbeatProperties,
			@Autowired(required = false) TtlScheduler ttlScheduler) {
		return new ConsulServiceRegistry(consulClient, properties, ttlScheduler,
				heartbeatProperties);
	}

	@Bean
	@ConditionalOnMissingBean
	public HeartbeatProperties heartbeatProperties() {
		return new HeartbeatProperties();
	}

	@Bean
	@ConditionalOnMissingBean
	// TODO: Split appropriate values to service-registry for Edgware
	public ConsulDiscoveryProperties consulDiscoveryProperties(InetUtils inetUtils) {
		return new ConsulDiscoveryProperties(inetUtils);
	}

	protected static class OnConsulRegistrationEnabledCondition
			extends AllNestedConditions {

		OnConsulRegistrationEnabledCondition() {
			super(ConfigurationPhase.REGISTER_BEAN);
		}

		@ConditionalOnProperty(value = "spring.cloud.service-registry.enabled",
				matchIfMissing = true)
		static class ServiceRegistryEnabledClass {

		}

		@ConditionalOnProperty(value = "spring.cloud.consul.service-registry.enabled",
				matchIfMissing = true)
		static class ConsulServiceRegistryEnabledClass {

		}

	}

}