package de.comline.spring;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;
import static org.junit.jupiter.api.Assertions.assertThrows;
import static org.junit.jupiter.api.Assertions.fail;

import org.junit.jupiter.api.DisplayName;
import org.junit.jupiter.api.Test;
import org.springframework.beans.factory.NoUniqueBeanDefinitionException;
import org.springframework.context.annotation.AnnotationConfigApplicationContext;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;

import de.comline.spring.model.ActionMovieCatalog;
import de.comline.spring.model.ComedyMovieCatalog;
import de.comline.spring.model.MovieCatalog;

public class ConfigurationTest {
	@Test
	@DisplayName("Explicit bean configuration")
	public void beansInConfiguration() {
		try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(BeansConfiguration.class)) {
			MovieCatalog catalog = context.getBean(MovieCatalog.class);
			assertThat(catalog.getCategory(), is("Comedy"));
		}
	}
	
	@Test
	@DisplayName("Duplicate beans can be registered")
	public void duplicateBeansInConfiguration() {
		try (AnnotationConfigApplicationContext context = new AnnotationConfigApplicationContext(DuplicateBeansConfiguration.class)) {
			assertThrows(NoUniqueBeanDefinitionException.class, () -> {
				context.getBean(MovieCatalog.class);
				fail("Configuration scanning must have detected both implementations of the MovieCatalog interface");
			});
		}
	}
	
	@Configuration
	private static class BeansConfiguration {
		BeansConfiguration() {
			super();
		}
		
		@Bean
		MovieCatalog defineMovieCatalog() {
			return new ComedyMovieCatalog();
		}
	}
	
	@Configuration
	private static class DuplicateBeansConfiguration extends BeansConfiguration {
		@SuppressWarnings("unused")
		DuplicateBeansConfiguration() {
			super();
		}
		
		@Bean
		MovieCatalog duplicateMovieCatalog() {
			return new ActionMovieCatalog();
		}
	}
}