/*
 * 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.issues;

import org.apache.camel.CamelContext;
import org.apache.camel.ContextTestSupport;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.spi.CamelEvent;
import org.apache.camel.spi.CamelEvent.ExchangeSentEvent;
import org.apache.camel.support.DefaultExchange;
import org.apache.camel.support.EventNotifierSupport;
import org.junit.jupiter.api.Test;

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

public class SentExchangeEventNotifierIssueTest extends ContextTestSupport {

    private MyNotifier notifier = new MyNotifier();

    private class MyNotifier extends EventNotifierSupport {

        private int counter;

        @Override
        public void notify(CamelEvent event) throws Exception {
            counter++;
        }

        @Override
        public boolean isEnabled(CamelEvent event) {
            return event instanceof ExchangeSentEvent;
        }

        public int getCounter() {
            return counter;
        }

        public void reset() {
            counter = 0;
        }
    }

    @Override
    protected CamelContext createCamelContext() throws Exception {
        CamelContext context = super.createCamelContext();
        context.getManagementStrategy().addEventNotifier(notifier);
        return context;
    }

    @Test
    public void testExchangeSentNotifier() throws Exception {
        notifier.reset();

        String out = template.requestBody("direct:start", "Hello World", String.class);
        assertEquals("I was here", out);

        // should only be one event
        assertEquals(1, notifier.getCounter());
    }

    @Test
    public void testExchangeSentNotifierExchange() throws Exception {
        notifier.reset();

        Exchange out = template.request("direct:start", new Processor() {
            @Override
            public void process(Exchange exchange) throws Exception {
                exchange.getIn().setBody("Hello World");
            }
        });
        assertEquals("I was here", out.getIn().getBody());

        // should only be one event
        assertEquals(1, notifier.getCounter());
    }

    @Test
    public void testExchangeSentNotifierManualExchange() throws Exception {
        notifier.reset();

        Exchange exchange = new DefaultExchange(context);
        exchange.getIn().setBody("Hello World");

        template.send("direct:start", exchange);
        assertEquals("I was here", exchange.getIn().getBody());

        // should only be one event
        assertEquals(1, notifier.getCounter());
    }

    @Override
    protected RouteBuilder createRouteBuilder() throws Exception {
        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("direct:start").process(new Processor() {
                    @Override
                    public void process(Exchange exchange) throws Exception {
                        exchange.getIn().setBody("I was here");
                    }
                });
            }
        };
    }
}
