/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.apache.camel.component.hystrix.processor;

import org.apache.camel.ExtendedCamelContext;
import org.apache.camel.Route;
import org.apache.camel.impl.engine.DefaultRoute;
import org.apache.camel.model.CircuitBreakerDefinition;
import org.apache.camel.model.HystrixConfigurationDefinition;
import org.apache.camel.model.RouteDefinition;
import org.apache.camel.test.spring.junit5.CamelSpringTestSupport;
import org.junit.jupiter.api.Test;
import org.springframework.context.support.AbstractApplicationContext;
import org.springframework.context.support.ClassPathXmlApplicationContext;
import org.springframework.test.annotation.DirtiesContext;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertNotNull;

@DirtiesContext
public class SpringHystrixRouteHierarchicalConfigTest extends CamelSpringTestSupport {
    @Override
    protected AbstractApplicationContext createApplicationContext() {
        return new ClassPathXmlApplicationContext(
                "org/apache/camel/component/hystrix/processor/SpringHystrixRouteHierarchicalConfigTest.xml");
    }

    @Test
    public void testHystrix() throws Exception {
        RouteDefinition routeDefinition = context.getRouteDefinition("hystrix-route");
        final Route route = new DefaultRoute(
                context, routeDefinition,
                routeDefinition.idOrCreate(context.adapt(ExtendedCamelContext.class).getNodeIdFactory()), null, null, null);
        CircuitBreakerDefinition hystrixDefinition = findCircuitBreakerDefinition(routeDefinition);

        assertNotNull(hystrixDefinition);

        HystrixReifier reifier = new HystrixReifier(route, hystrixDefinition);
        HystrixConfigurationDefinition config = reifier.buildHystrixConfiguration();

        assertEquals("local-conf-group-key", config.getGroupKey());
        assertEquals("global-thread-key", config.getThreadPoolKey());
        assertEquals(Integer.toString(5), config.getCorePoolSize());

        getMockEndpoint("mock:result").expectedBodiesReceived("Bye World");

        template.sendBody("direct:start", "Hello World");

        assertMockEndpointsSatisfied();
    }

    // **********************************************
    // Helper
    // **********************************************

    private CircuitBreakerDefinition findCircuitBreakerDefinition(RouteDefinition routeDefinition) throws Exception {
        return routeDefinition.getOutputs().stream()
                .filter(CircuitBreakerDefinition.class::isInstance)
                .map(CircuitBreakerDefinition.class::cast)
                .findFirst()
                .orElseThrow(() -> new IllegalStateException("Unable to find a CircuitBreakerDefinition"));
    }
}
