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   * 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
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   *
   *      http://www.apache.org/licenses/LICENSE-2.0
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  package org.apache.camel.component.minio.integration;
  
  import java.util.ArrayList;
  import java.util.Iterator;
  import java.util.List;
  
  import com.google.common.collect.Iterators;
  import io.minio.MakeBucketArgs;
  import io.minio.MinioClient;
  import io.minio.RemoveBucketArgs;
  import io.minio.RemoveObjectsArgs;
  import io.minio.Result;
  import io.minio.messages.DeleteObject;
  import io.minio.messages.Item;
  import org.apache.camel.BindToRegistry;
  import org.apache.camel.EndpointInject;
  import org.apache.camel.Exchange;
  import org.apache.camel.ExchangePattern;
  import org.apache.camel.Processor;
  import org.apache.camel.ProducerTemplate;
  import org.apache.camel.builder.RouteBuilder;
  import org.apache.camel.component.minio.MinioConstants;
  import org.apache.camel.component.minio.MinioOperations;
  import org.apache.camel.component.mock.MockEndpoint;
  import org.junit.jupiter.api.Test;
  
  import static org.apache.camel.component.minio.MinioTestUtils.countObjectsInBucket;
  import static org.junit.jupiter.api.Assertions.assertEquals;
  import static org.testcontainers.shaded.org.apache.commons.lang3.RandomStringUtils.randomAlphanumeric;
  
  class MinioListObjectsOperationIT extends MinioIntegrationTestSupport {
  
      private static final String BUCKET_NAME = "mycamel2";
  
      @BindToRegistry("minioClient")
      MinioClient client = MinioClient.builder()
              .endpoint("http://" + service.host(), service.port(), false)
              .credentials(service.accessKey(), service.secretKey())
              .build();
  
      @EndpointInject
      private ProducerTemplate template;
  
      @EndpointInject("mock:result")
      private MockEndpoint result;
  
      MinioListObjectsOperationIT() {
      }
  
      @SuppressWarnings("unchecked")
      @Test
      void sendIn() throws Exception {
          client.removeBucket(RemoveBucketArgs.builder().bucket(BUCKET_NAME).build());
  
          client.makeBucket(MakeBucketArgs.builder().bucket(BUCKET_NAME).build());
  
          result.expectedMessageCount(1);
  
          template.send("direct:listBuckets",
                  exchange -> exchange.getIn().setHeader(MinioConstants.MINIO_OPERATION, MinioOperations.listBuckets));
  
          template.send("direct:addObject", ExchangePattern.InOnly, exchange -> {
              exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, "CamelUnitTest2");
              exchange.getIn().setBody("This is my bucket content.");
              exchange.getIn().removeHeader(MinioConstants.MINIO_OPERATION);
          });
  
          Exchange exchange = template.request("direct:listObjects", exchange13 -> {
              exchange13.getIn().setHeader(MinioConstants.BUCKET_NAME, BUCKET_NAME);
              exchange13.getIn().setHeader(MinioConstants.MINIO_OPERATION, MinioOperations.listObjects);
          });
  
          Iterable<Result<Item>> respond = (Iterable<Result<Item>>) exchange.getMessage().getBody();
          Iterator<Result<Item>> respondSize = respond.iterator();
          Iterator<Result<Item>> respondIterator = respond.iterator();
  
          assertEquals(1, Iterators.size(respondSize));
          assertEquals("CamelUnitTest2", respondIterator.next().get().objectName());
  
          template.send("direct:deleteObject", ExchangePattern.InOnly, exchange12 -> {
              exchange12.getIn().setHeader(MinioConstants.OBJECT_NAME, "CamelUnitTest2");
              exchange12.getIn().setHeader(MinioConstants.BUCKET_NAME, BUCKET_NAME);
              exchange12.getIn().setHeader(MinioConstants.MINIO_OPERATION, MinioOperations.deleteObject);
          });
  
          template.send("direct:deleteBucket", exchange1 -> {
              exchange1.getIn().setHeader(MinioConstants.BUCKET_NAME, BUCKET_NAME);
              exchange1.getIn().setHeader(MinioConstants.MINIO_OPERATION, MinioOperations.deleteBucket);
          });
  
          MockEndpoint.assertIsSatisfied(context);
      }
  
      @SuppressWarnings("unchecked")
      @Test
      void deleteObjectsTest() throws Exception {
  
          client.removeBucket(RemoveBucketArgs.builder().bucket(BUCKET_NAME).build());
  
          client.makeBucket(MakeBucketArgs.builder().bucket(BUCKET_NAME).build());
  
          final List<DeleteObject> objects = new ArrayList<>(20);
  
          // set up the environment
          for (int i = 0; i < 20; i++) {
              String currentDeleteObjectName = "CamelUnitTest-" + randomAlphanumeric(5);
              objects.add(new DeleteObject(currentDeleteObjectName));
              template.send("direct:addObject", ExchangePattern.InOnly, new Processor() {
                  @Override
                  public void process(Exchange exchange) throws Exception {
                      exchange.getIn().setHeader(MinioConstants.BUCKET_NAME, BUCKET_NAME);
                      exchange.getIn().setHeader(MinioConstants.OBJECT_NAME, currentDeleteObjectName);
                      exchange.getIn().setBody("This is my bucket content.");
                      exchange.getIn().removeHeader(MinioConstants.MINIO_OPERATION);
                  }
              });
          }
  
          assertEquals(20, countObjectsInBucket(client, BUCKET_NAME));
  
          // delete all objects of the bucket
  
          template.send("direct:deleteObjects", exchange -> {
              exchange.getIn().setHeader(MinioConstants.BUCKET_NAME, BUCKET_NAME);
              exchange.getIn().setHeader(MinioConstants.MINIO_OPERATION, MinioOperations.deleteObjects);
              exchange.getIn().setBody(RemoveObjectsArgs.builder().bucket(BUCKET_NAME).objects(objects));
          });
  
          assertEquals(0, countObjectsInBucket(client, BUCKET_NAME));
      }
  
      @Override
      protected RouteBuilder createRouteBuilder() {
          return new RouteBuilder() {
              @Override
              public void configure() {
                  String minioEndpoint = "minio://" + BUCKET_NAME + "?autoCreateBucket=true";
                  String minioEndpointPojoEnabled = minioEndpoint + "&pojoRequest=true";
  
                  from("direct:listBucket").to(minioEndpoint);
  
                  from("direct:addObject").to(minioEndpoint);
  
                  from("direct:deleteObject").to(minioEndpoint);
  
                  from("direct:deleteObjects").to(minioEndpointPojoEnabled);
  
                  from("direct:listObjects").to(minioEndpoint);
  
                  from("direct:deleteBucket").to(minioEndpoint).to("mock:result");
  
              }
          };
      }
  }
  