/*
 * Copyright 2012-2019 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.boot.autoconfigure.data.elasticsearch;

import org.elasticsearch.client.Client;
import org.elasticsearch.client.node.NodeClient;
import org.junit.After;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;

import org.springframework.beans.factory.BeanCreationException;
import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
import org.springframework.boot.test.util.EnvironmentTestUtils;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.Mockito.mock;

/**
 * Tests for {@link ElasticsearchAutoConfiguration}.
 *
 * @author Phillip Webb
 */
public class ElasticsearchAutoConfigurationTests {

	@Rule
	public ExpectedException thrown = ExpectedException.none();

	private AnnotationConfigApplicationContext context;

	@After
	public void close() {
		if (this.context != null) {
			this.context.close();
		}
	}

	@Test
	public void createNodeClientWithDefaults() {
		this.context = new AnnotationConfigApplicationContext();
		EnvironmentTestUtils.addEnvironment(this.context, "spring.data.elasticsearch.properties.foo.bar:baz",
				"spring.data.elasticsearch.properties.path.home:target");
		this.context.register(PropertyPlaceholderAutoConfiguration.class, ElasticsearchAutoConfiguration.class);
		this.context.refresh();
		assertThat(this.context.getBeanNamesForType(Client.class).length).isEqualTo(1);
		NodeClient client = (NodeClient) this.context.getBean(Client.class);
		assertThat(client.settings().get("foo.bar")).isEqualTo("baz");
		assertThat(client.settings().get("node.local")).isEqualTo("true");
		assertThat(client.settings().get("http.enabled")).isEqualTo("false");
	}

	@Test
	public void createNodeClientWithOverrides() {
		this.context = new AnnotationConfigApplicationContext();
		EnvironmentTestUtils.addEnvironment(this.context, "spring.data.elasticsearch.properties.foo.bar:baz",
				"spring.data.elasticsearch.properties.path.home:target",
				"spring.data.elasticsearch.properties.node.local:false",
				"spring.data.elasticsearch.properties.node.data:true",
				"spring.data.elasticsearch.properties.http.enabled:true");
		this.context.register(PropertyPlaceholderAutoConfiguration.class, ElasticsearchAutoConfiguration.class);
		this.context.refresh();
		assertThat(this.context.getBeanNamesForType(Client.class).length).isEqualTo(1);
		NodeClient client = (NodeClient) this.context.getBean(Client.class);
		assertThat(client.settings().get("foo.bar")).isEqualTo("baz");
		assertThat(client.settings().get("node.local")).isEqualTo("false");
		assertThat(client.settings().get("node.data")).isEqualTo("true");
		assertThat(client.settings().get("http.enabled")).isEqualTo("true");
	}

	@Test
	public void useExistingClient() {
		this.context = new AnnotationConfigApplicationContext();
		this.context.register(CustomConfiguration.class, PropertyPlaceholderAutoConfiguration.class,
				ElasticsearchAutoConfiguration.class);
		this.context.refresh();
		assertThat(this.context.getBeanNamesForType(Client.class).length).isEqualTo(1);
		assertThat(this.context.getBean("myClient")).isSameAs(this.context.getBean(Client.class));
	}

	@Test
	public void createTransportClient() throws Exception {
		// We don't have a local elasticsearch server so use an address that's missing
		// a port and check the exception
		this.context = new AnnotationConfigApplicationContext();
		EnvironmentTestUtils.addEnvironment(this.context, "spring.data.elasticsearch.cluster-nodes:localhost",
				"spring.data.elasticsearch.properties.path.home:target");
		this.context.register(PropertyPlaceholderAutoConfiguration.class, ElasticsearchAutoConfiguration.class);
		this.thrown.expect(BeanCreationException.class);
		this.thrown.expectMessage("port");
		this.context.refresh();
	}

	@Configuration
	static class CustomConfiguration {

		@Bean
		public Client myClient() {
			return mock(Client.class);
		}

	}

}
