/*
 * 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.mail.springboot;



import java.net.URLEncoder;
import java.nio.charset.Charset;
import java.util.Map;

import javax.activation.DataHandler;
import javax.activation.FileDataSource;


import org.apache.camel.CamelContext;
import org.apache.camel.Endpoint;
import org.apache.camel.EndpointInject;
import org.apache.camel.Exchange;
import org.apache.camel.Producer;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.attachment.AttachmentMessage;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.spring.boot.CamelAutoConfiguration;

import org.junit.jupiter.api.Test;

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

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.boot.test.context.SpringBootTest;
import org.springframework.context.annotation.Bean;
import org.springframework.context.annotation.Configuration;
import org.springframework.test.annotation.DirtiesContext;
import org.springframework.test.annotation.DirtiesContext.ClassMode;
import org.apache.camel.test.spring.junit5.CamelSpringBootTest;
import org.jvnet.mock_javamail.Mailbox;


@DirtiesContext(classMode = ClassMode.AFTER_EACH_TEST_METHOD)
@CamelSpringBootTest
@SpringBootTest(
    classes = {
        CamelAutoConfiguration.class,
        MailAttachmentsUmlautIssueTest.class,
        MailAttachmentsUmlautIssueTest.TestConfiguration.class
    }
)
public class MailAttachmentsUmlautIssueTest {

    
    @Autowired
    ProducerTemplate template;
    
    @Autowired
    CamelContext context;
    
    @EndpointInject("mock:result")
    MockEndpoint mock;
    
    @Test
    public void testSendAndReceiveMailWithAttachments() throws Exception {
        // clear mailbox
        Mailbox.clearAll();

        // create an exchange with a normal body and attachment to be produced as email
        Endpoint endpoint = context.getEndpoint("smtp://james@mymailserver.com?password=secret");

        // create the exchange with the mail message that is multipart with a file and a Hello World text/plain message.
        Exchange exchange = endpoint.createExchange();
        AttachmentMessage in = exchange.getIn(AttachmentMessage.class);
        in.setBody("Hello World");
        // unicode 00DC is german umlaut
        String name = "logo2\u00DC";
        // use existing logo.jpeg file, but lets name it with the umlaut
        in.addAttachment(name, new DataHandler(new FileDataSource("src/test/data/logo.jpeg")));

        // create a producer that can produce the exchange (= send the mail)
        Producer producer = endpoint.createProducer();
        // start the producer
        producer.start();
        // and let it go (processes the exchange by sending the email)
        producer.process(exchange);

        // need some time for the mail to arrive on the inbox (consumed and sent to the mock)
        Thread.sleep(2000);

        
        mock.expectedMessageCount(1);
        Exchange out = mock.assertExchangeReceived(0);
        mock.assertIsSatisfied();

        // plain text
        assertEquals("Hello World", out.getIn().getBody(String.class));

        // attachment
        Map<String, DataHandler> attachments = out.getIn(AttachmentMessage.class).getAttachments();
        assertNotNull(attachments, "Should have attachments");
        assertEquals(1, attachments.size());

        DataHandler handler = out.getIn(AttachmentMessage.class).getAttachment(name);
        assertNotNull(handler, "The " + name + " should be there");

        String nameURLEncoded = URLEncoder.encode(name, Charset.defaultCharset().name());
        assertTrue(handler.getContentType().endsWith(nameURLEncoded), "Handler content type should end with URL-encoded name");

        assertEquals(name, handler.getName(), "Handler name should be the file name");

        producer.stop();
    }
    
    // *************************************
    // Config
    // *************************************

    @Configuration
    public class TestConfiguration {

        @Bean
        public RouteBuilder routeBuilder() {
            return new RouteBuilder() {
                @Override
                public void configure() {
                    from("pop3://james@mymailserver.com?password=secret&initialDelay=100&delay=100").to("mock:result");
                }
            };
        }
    }
    
   

}
