/*
 * Copyright 2012-2017 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
 *
 *      http://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.couchbase;

import java.util.Collections;
import java.util.Set;

import org.junit.After;
import org.junit.Test;

import org.springframework.boot.autoconfigure.context.PropertyPlaceholderAutoConfiguration;
import org.springframework.boot.autoconfigure.couchbase.CouchbaseAutoConfiguration;
import org.springframework.boot.autoconfigure.couchbase.CouchbaseProperties;
import org.springframework.boot.autoconfigure.couchbase.CouchbaseTestConfigurer;
import org.springframework.boot.autoconfigure.data.couchbase.city.City;
import org.springframework.boot.autoconfigure.domain.EntityScan;
import org.springframework.boot.autoconfigure.validation.ValidationAutoConfiguration;
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 org.springframework.context.annotation.Import;
import org.springframework.core.convert.converter.Converter;
import org.springframework.data.couchbase.config.AbstractCouchbaseDataConfiguration;
import org.springframework.data.couchbase.config.BeanNames;
import org.springframework.data.couchbase.config.CouchbaseConfigurer;
import org.springframework.data.couchbase.core.CouchbaseTemplate;
import org.springframework.data.couchbase.core.convert.CouchbaseCustomConversions;
import org.springframework.data.couchbase.core.mapping.CouchbaseMappingContext;
import org.springframework.data.couchbase.core.mapping.event.ValidatingCouchbaseEventListener;
import org.springframework.data.couchbase.core.query.Consistency;
import org.springframework.data.couchbase.repository.support.IndexManager;
import org.springframework.test.util.ReflectionTestUtils;

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

/**
 * Tests for {@link CouchbaseDataAutoConfiguration}.
 *
 * @author Stephane Nicoll
 */
public class CouchbaseDataAutoConfigurationTests {

	private AnnotationConfigApplicationContext context;

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

	@Test
	public void disabledIfCouchbaseIsNotConfigured() {
		load(null);
		assertThat(this.context.getBeansOfType(IndexManager.class)).isEmpty();
	}

	@Test
	public void customConfiguration() {
		load(CustomCouchbaseConfiguration.class);
		CouchbaseTemplate couchbaseTemplate = this.context
				.getBean(CouchbaseTemplate.class);
		assertThat(couchbaseTemplate.getDefaultConsistency())
				.isEqualTo(Consistency.STRONGLY_CONSISTENT);
	}

	@Test
	public void validatorIsPresent() {
		load(CouchbaseTestConfigurer.class);
		assertThat(this.context.getBeansOfType(ValidatingCouchbaseEventListener.class))
				.hasSize(1);
	}

	@Test
	public void autoIndexIsDisabledByDefault() {
		load(CouchbaseTestConfigurer.class);
		IndexManager indexManager = this.context.getBean(IndexManager.class);
		assertThat(indexManager.isIgnoreViews()).isTrue();
		assertThat(indexManager.isIgnoreN1qlPrimary()).isTrue();
		assertThat(indexManager.isIgnoreN1qlSecondary()).isTrue();
	}

	@Test
	public void enableAutoIndex() {
		load(CouchbaseTestConfigurer.class, "spring.data.couchbase.auto-index=true");
		IndexManager indexManager = this.context.getBean(IndexManager.class);
		assertThat(indexManager.isIgnoreViews()).isFalse();
		assertThat(indexManager.isIgnoreN1qlPrimary()).isFalse();
		assertThat(indexManager.isIgnoreN1qlSecondary()).isFalse();
	}

	@Test
	public void changeConsistency() {
		load(CouchbaseTestConfigurer.class,
				"spring.data.couchbase.consistency=eventually-consistent");
		SpringBootCouchbaseDataConfiguration configuration = this.context
				.getBean(SpringBootCouchbaseDataConfiguration.class);
		assertThat(configuration.getDefaultConsistency())
				.isEqualTo(Consistency.EVENTUALLY_CONSISTENT);
	}

	@Test
	@SuppressWarnings("unchecked")
	public void entityScanShouldSetInitialEntitySet() throws Exception {
		load(EntityScanConfig.class);
		CouchbaseMappingContext mappingContext = this.context
				.getBean(CouchbaseMappingContext.class);
		Set<Class<?>> initialEntitySet = (Set<Class<?>>) ReflectionTestUtils
				.getField(mappingContext, "initialEntitySet");
		assertThat(initialEntitySet).containsOnly(City.class);
	}

	@Test
	public void customConversions() {
		load(CustomConversionsConfig.class);
		CouchbaseTemplate template = this.context.getBean(CouchbaseTemplate.class);
		assertThat(template.getConverter().getConversionService()
				.canConvert(CouchbaseProperties.class, Boolean.class)).isTrue();
	}

	private void load(Class<?> config, String... environment) {
		AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext();
		EnvironmentTestUtils.addEnvironment(context, environment);
		if (config != null) {
			context.register(config);
		}
		context.register(PropertyPlaceholderAutoConfiguration.class,
				ValidationAutoConfiguration.class, CouchbaseAutoConfiguration.class,
				CouchbaseDataAutoConfiguration.class);
		context.refresh();
		this.context = context;
	}

	@Configuration
	static class CustomCouchbaseConfiguration extends AbstractCouchbaseDataConfiguration {

		@Override
		protected CouchbaseConfigurer couchbaseConfigurer() {
			return new CouchbaseTestConfigurer();
		}

		@Override
		protected Consistency getDefaultConsistency() {
			return Consistency.STRONGLY_CONSISTENT;
		}

	}

	@Configuration
	@Import(CouchbaseTestConfigurer.class)
	static class CustomConversionsConfig {

		@Bean(BeanNames.COUCHBASE_CUSTOM_CONVERSIONS)
		public CouchbaseCustomConversions myCustomConversions() {
			return new CouchbaseCustomConversions(
					Collections.singletonList(new MyConverter()));
		}

	}

	@Configuration
	@EntityScan("org.springframework.boot.autoconfigure.data.couchbase.city")
	@Import(CustomCouchbaseConfiguration.class)
	static class EntityScanConfig {

	}

	static class MyConverter implements Converter<CouchbaseProperties, Boolean> {

		@Override
		public Boolean convert(CouchbaseProperties value) {
			return true;
		}
	}

}
