/**
 * Copyright 2018 The original authors.
 *
 * Licensed 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 io.dekorate.example;

import static io.dekorate.testing.KubernetesResources.loadGenerated;
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 java.util.Map;
import java.util.Optional;

import org.junit.jupiter.api.Test;

import io.dekorate.utils.Labels;
import io.fabric8.kubernetes.api.model.*;
import io.fabric8.kubernetes.api.model.batch.v1.CronJob;

public class Feat855Test {

  private static final String EXPECTED_JOB_NAME = "say-hello";
  private static final String EXPECTED_SCHEDULE = "* * * * *";
  private static final String EXPECTED_IMAGE_NAME = "hello";
  private static final String EXPECTED_IMAGE = "docker.io/user/" + EXPECTED_IMAGE_NAME;

  @Test
  public void shouldGenerateJobResource() {
    KubernetesList list = loadGenerated("openshift");
    assertNotNull(list);
    CronJob job = findFirst(list, CronJob.class).orElseThrow(() -> new IllegalStateException());
    assertNotNull(job, "CronJob was not generated!");
    assertEquals(EXPECTED_SCHEDULE, job.getSpec().getSchedule());
    Map<String, String> labels = job.getMetadata().getLabels();
    assertNotNull(labels);
    assertTrue(labels.containsKey(Labels.NAME));
    assertTrue(labels.containsKey(Labels.VERSION));
    assertEquals(EXPECTED_JOB_NAME, job.getMetadata().getName());
    assertEquals(EXPECTED_IMAGE_NAME,
        job.getSpec().getJobTemplate().getSpec().getTemplate().getSpec().getContainers().get(0).getName());
    assertEquals(EXPECTED_IMAGE,
        job.getSpec().getJobTemplate().getSpec().getTemplate().getSpec().getContainers().get(0).getImage());
  }

  <T extends HasMetadata> Optional<T> findFirst(KubernetesList list, Class<T> t) {
    return (Optional<T>) list.getItems().stream()
        .filter(i -> t.isInstance(i))
        .findFirst();
  }
}
