/*
 * Copyright 2013-2021 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.sleuth.autoconfig.instrument.jdbc;

import java.util.concurrent.ThreadLocalRandom;

import javax.sql.DataSource;

import net.ttddyy.dsproxy.listener.ChainListener;
import net.ttddyy.dsproxy.support.ProxyDataSource;
import org.junit.jupiter.api.Test;

import org.springframework.boot.autoconfigure.AutoConfigurations;
import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
import org.springframework.boot.autoconfigure.jdbc.DataSourceAutoConfiguration;
import org.springframework.boot.test.context.FilteredClassLoader;
import org.springframework.boot.test.context.runner.ApplicationContextRunner;
import org.springframework.cloud.sleuth.autoconfig.TraceNoOpAutoConfiguration;
import org.springframework.cloud.sleuth.instrument.jdbc.DataSourceWrapper;
import org.springframework.cloud.sleuth.instrument.jdbc.TraceQueryExecutionListener;

import static org.assertj.core.api.Assertions.assertThat;

class SleuthProxyDataSourceListenerAutoConfigurationTests {

	private final ApplicationContextRunner contextRunner = new ApplicationContextRunner()
			.withConfiguration(
					AutoConfigurations.of(DataSourceAutoConfiguration.class, TraceJdbcAutoConfiguration.class,
							TraceNoOpAutoConfiguration.class, PropertyPlaceholderAutoConfiguration.class))
			.withPropertyValues("spring.datasource.initialization-mode=never", "spring.sleuth.noop.enabled=true",
					"spring.datasource.url:jdbc:h2:mem:testdb-" + ThreadLocalRandom.current().nextInt())
			.withClassLoader(new FilteredClassLoader("com.p6spy"));

	@Test
	void testAddsDatasourceProxyListener() {
		contextRunner.run(context -> {
			DataSource dataSource = context.getBean(DataSource.class);
			ProxyDataSource proxyDataSource = (ProxyDataSource) ((DataSourceWrapper) dataSource)
					.getDecoratedDataSource();
			ChainListener chainListener = proxyDataSource.getProxyConfig().getQueryListener();
			assertThat(chainListener.getListeners()).extracting("class").contains(TraceQueryExecutionListener.class);
		});
	}

	@Test
	void testDoesNotAddDatasourceProxyListenerIfNoTracer() {
		ApplicationContextRunner contextRunner = this.contextRunner.withPropertyValues("spring.sleuth.enabled:false");

		contextRunner.run(context -> {
			assertThat(context).doesNotHaveBean(DataSourceWrapper.class);
		});
	}

}
