/*
 * Copyright 2014-2018 the original author or 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 de.codecentric.boot.admin.server.notify;

import de.codecentric.boot.admin.server.domain.entities.Instance;
import de.codecentric.boot.admin.server.domain.entities.InstanceRepository;
import de.codecentric.boot.admin.server.domain.events.InstanceStatusChangedEvent;
import de.codecentric.boot.admin.server.domain.values.InstanceId;
import de.codecentric.boot.admin.server.domain.values.Registration;
import de.codecentric.boot.admin.server.domain.values.StatusInfo;
import reactor.core.publisher.Mono;
import reactor.test.StepVerifier;

import java.net.URI;
import java.util.Collections;
import java.util.Map;
import org.junit.Before;
import org.junit.Test;
import org.mockito.ArgumentCaptor;
import org.springframework.http.HttpEntity;
import org.springframework.http.ResponseEntity;
import org.springframework.web.client.RestTemplate;

import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.ArgumentMatchers.isA;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;

/**
 * @author Jamie Brown
 */
public class HipchatNotifierTest {
    private final Instance instance = Instance.create(InstanceId.of("-id-"))
                                              .register(Registration.create("App", "http://health").build());
    private HipchatNotifier notifier;
    private RestTemplate restTemplate;
    private InstanceRepository repository;

    @Before
    public void setUp() {
        repository = mock(InstanceRepository.class);
        when(repository.find(instance.getId())).thenReturn(Mono.just(instance));

        restTemplate = mock(RestTemplate.class);
        notifier = new HipchatNotifier(repository);
        notifier.setNotify(true);
        notifier.setAuthToken("--token-");
        notifier.setRoomId("-room-");
        notifier.setUrl(URI.create("http://localhost/v2"));
        notifier.setRestTemplate(restTemplate);
    }

    @Test
    public void test_onApplicationEvent_resolve() {
        @SuppressWarnings("unchecked")
        ArgumentCaptor<HttpEntity<Map<String, Object>>> httpRequest = ArgumentCaptor.forClass(
            (Class<HttpEntity<Map<String, Object>>>) (Class<?>) HttpEntity.class);

        when(restTemplate.postForEntity(isA(String.class), httpRequest.capture(), eq(Void.class))).thenReturn(
            ResponseEntity.ok().build());

        StepVerifier.create(notifier.notify(
            new InstanceStatusChangedEvent(instance.getId(), instance.getVersion(), StatusInfo.ofDown())))
                    .verifyComplete();
        StepVerifier.create(
            notifier.notify(new InstanceStatusChangedEvent(instance.getId(), instance.getVersion(), StatusInfo.ofUp())))
                    .verifyComplete();

        assertThat(httpRequest.getValue().getHeaders()).containsEntry("Content-Type",
            Collections.singletonList("application/json"));

        Map<String, Object> body = httpRequest.getValue().getBody();
        assertThat(body).containsEntry("color", "green");
        assertThat(body).containsEntry("message", "<strong>App</strong>/-id- is <strong>UP</strong>");
        assertThat(body).containsEntry("notify", Boolean.TRUE);
        assertThat(body).containsEntry("message_format", "html");

    }

    @Test
    public void test_onApplicationEvent_trigger() {
        StatusInfo infoDown = StatusInfo.ofDown();

        @SuppressWarnings("unchecked")
        ArgumentCaptor<HttpEntity<Map<String, Object>>> httpRequest = ArgumentCaptor.forClass(
            (Class<HttpEntity<Map<String, Object>>>) (Class<?>) HttpEntity.class);

        when(restTemplate.postForEntity(isA(String.class), httpRequest.capture(), eq(Void.class))).thenReturn(
            ResponseEntity.ok().build());

        StepVerifier.create(
            notifier.notify(new InstanceStatusChangedEvent(instance.getId(), instance.getVersion(), StatusInfo.ofUp())))
                    .verifyComplete();
        StepVerifier.create(
            notifier.notify(new InstanceStatusChangedEvent(instance.getId(), instance.getVersion(), infoDown)))
                    .verifyComplete();

        assertThat(httpRequest.getValue().
            getHeaders()).containsEntry("Content-Type", Collections.singletonList("application/json"));
        Map<String, Object> body = httpRequest.getValue().getBody();
        assertThat(body).containsEntry("color", "red");
        assertThat(body).containsEntry("message", "<strong>App</strong>/-id- is <strong>DOWN</strong>");
        assertThat(body).containsEntry("notify", Boolean.TRUE);
        assertThat(body).containsEntry("message_format", "html");
    }
}