/*
 * 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.jira.springboot.test;

import static org.apache.camel.component.jira.JiraConstants.ISSUE_KEY;
import static org.apache.camel.component.jira.JiraConstants.JIRA_REST_CLIENT_FACTORY;
import static org.apache.camel.component.jira.springboot.test.JiraTestConstants.KEY;
import static org.apache.camel.component.jira.springboot.test.Utils.createIssue;
import static org.apache.camel.component.jira.springboot.test.Utils.createIssueWithAttachment;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.Mockito.lenient;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

import java.io.File;
import java.io.IOException;
import java.net.URI;
import java.nio.file.Files;
import java.nio.file.StandardCopyOption;
import java.nio.file.StandardOpenOption;
import java.util.ArrayList;
import java.util.Collection;

import com.atlassian.jira.rest.client.api.IssueRestClient;
import com.atlassian.jira.rest.client.api.JiraRestClient;
import com.atlassian.jira.rest.client.api.JiraRestClientFactory;
import com.atlassian.jira.rest.client.api.domain.Attachment;
import com.atlassian.jira.rest.client.api.domain.Issue;

import org.apache.camel.CamelContext;
import org.apache.camel.EndpointInject;
import org.apache.camel.Produce;
import org.apache.camel.ProducerTemplate;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.mock.MockEndpoint;
import org.apache.camel.spring.boot.CamelAutoConfiguration;
import org.apache.camel.spring.boot.CamelContextConfiguration;
import org.apache.camel.test.spring.junit5.CamelSpringBootTest;

import org.junit.jupiter.api.Test;

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

import io.atlassian.util.concurrent.Promises;

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;

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

public class AttachFileProducerTest {

    @Autowired
    private CamelContext camelContext;

    @Autowired
    @Produce("direct:start")
    ProducerTemplate template;

    @EndpointInject("mock:result")
    MockEndpoint mockResult;

    static JiraRestClient jiraClient;

    static JiraRestClientFactory jiraRestClientFactory;

    static IssueRestClient issueRestClient;

    static File attachedFile;

    static Issue issue;

    @Bean
    CamelContextConfiguration contextConfiguration() {
        return new CamelContextConfiguration() {
            @Override
            public void beforeApplicationStart(CamelContext context) {
                // get chance to mock camelContext/Registry
                jiraRestClientFactory = mock(JiraRestClientFactory.class);
                jiraClient = mock(JiraRestClient.class);
                issueRestClient = mock(IssueRestClient.class);
                lenient().when(jiraRestClientFactory.createWithBasicHttpAuthentication(any(), any(), any()))
                        .thenReturn(jiraClient);
                lenient().when(jiraClient.getIssueClient()).thenReturn(issueRestClient);

                when(issueRestClient.getIssue(any())).then(inv -> {
                    if (issue == null) {
                        issue = createIssue(1);
                    }
                    return Promises.promise(issue);
                });
                when(issueRestClient.addAttachments(any(URI.class), any(File.class))).then(inv -> {
                    File attachedFileTmp = inv.getArgument(1);
                    // create a temp destiny file as the attached file is marked for removal on AttachFileProducer
                    attachedFile = File.createTempFile("camel-jira-test-", null);
                    Files.copy(attachedFileTmp.toPath(), attachedFile.toPath(), StandardCopyOption.REPLACE_EXISTING);
                    attachedFile.deleteOnExit();
                    Collection<Attachment> attachments = new ArrayList<>();
                    attachments.add(new Attachment(issue.getAttachmentsUri(), attachedFile.getName(), null, null,
                            Long.valueOf(attachedFile.length()).intValue(), null, null, null));
                    // re-create the issue with the attachment sent by the route
                    issue = createIssueWithAttachment(issue.getId(), issue.getSummary(), issue.getKey(),
                            issue.getIssueType(), issue.getDescription(), issue.getPriority(), issue.getAssignee(),
                            attachments);
                    return null;
                });

                camelContext.getRegistry().bind(JIRA_REST_CLIENT_FACTORY, jiraRestClientFactory);
            }

            @Override
            public void afterApplicationStart(CamelContext camelContext) {
                // do nothing here
            }
        };
    }

    private File generateSampleFile() throws IOException {
        File sampleRandomFile = File.createTempFile("attach-test", null);
        sampleRandomFile.deleteOnExit();
        String text = "A random text to use on the AttachFileProducerTest.java of camel-jira component.";
        Files.write(sampleRandomFile.toPath(), text.getBytes(), StandardOpenOption.CREATE);
        return sampleRandomFile;
    }

    @Test
    public void verifyAttachment() throws InterruptedException, IOException {
        template.sendBody(generateSampleFile());
        Issue retrievedIssue = issueRestClient.getIssue(issue.getKey()).claim();
        assertEquals(issue, retrievedIssue);
        // there is only one attachment
        Attachment attachFile = retrievedIssue.getAttachments().iterator().next();
        assertEquals(attachFile.getFilename(), attachedFile.getName());
        assertEquals(attachFile.getSize(), attachedFile.length());
        mockResult.expectedMessageCount(1);
        mockResult.assertIsSatisfied();
    }

    @Configuration
    public class TestConfiguration {

        @Bean
        public RouteBuilder routeBuilder() {
            return new RouteBuilder() {
                @Override
                public void configure() throws IOException {
                    from("direct:start").setHeader(ISSUE_KEY, () -> KEY + "-1")
                            .to("jira://attach?jiraUrl=" + JiraTestConstants.getJiraCredentials()).to(mockResult);
                }
            };
        }

    }

}
