/*
 * 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 com.epam.dlab.backendapi.service.impl;


import com.epam.dlab.auth.UserInfo;
import com.epam.dlab.backendapi.dao.ComputationalDAO;
import com.epam.dlab.backendapi.dao.ExploratoryDAO;
import com.epam.dlab.backendapi.domain.RequestId;
import com.epam.dlab.backendapi.service.ExploratoryService;
import com.epam.dlab.backendapi.util.RequestBuilder;
import com.epam.dlab.dto.UserInstanceDTO;
import com.epam.dlab.dto.UserInstanceStatus;
import com.epam.dlab.dto.reuploadkey.ReuploadKeyCallbackDTO;
import com.epam.dlab.dto.reuploadkey.ReuploadKeyDTO;
import com.epam.dlab.dto.reuploadkey.ReuploadKeyStatus;
import com.epam.dlab.dto.reuploadkey.ReuploadKeyStatusDTO;
import com.epam.dlab.exceptions.DlabException;
import com.epam.dlab.model.ResourceData;
import com.epam.dlab.model.ResourceType;
import com.epam.dlab.rest.client.RESTService;
import com.mongodb.client.result.UpdateResult;
import org.junit.Before;
import org.junit.Rule;
import org.junit.Test;
import org.junit.rules.ExpectedException;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.runners.MockitoJUnitRunner;

import java.util.Collections;
import java.util.List;
import java.util.Map;

import static com.epam.dlab.dto.UserInstanceStatus.REUPLOADING_KEY;
import static com.epam.dlab.dto.UserInstanceStatus.RUNNING;
import static org.junit.Assert.assertEquals;
import static org.mockito.Mockito.*;

@RunWith(MockitoJUnitRunner.class)
public class ReuploadKeyServiceImplTest {

	private final String USER = "test";
	private final String TOKEN = "token";
	private final String EXPLORATORY_NAME = "explName";

	private UserInfo userInfo;

	@Mock
	private RESTService provisioningService;
	@Mock
	private RequestBuilder requestBuilder;
	@Mock
	private RequestId requestId;
	@Mock
	private ExploratoryService exploratoryService;
	@Mock
	private ComputationalDAO computationalDAO;
	@Mock
	private ExploratoryDAO exploratoryDAO;

	@InjectMocks
	private ReuploadKeyServiceImpl reuploadKeyService;


	@Rule
	public ExpectedException expectedException = ExpectedException.none();

	@Before
	public void setUp() {
		userInfo = getUserInfo();
	}

	@Test
	public void updateResourceDataForEdgeWhenStatusCompleted() {
		ResourceData resource = new ResourceData(ResourceType.EDGE, "someId", null, null);
		ReuploadKeyStatusDTO dto = getReuploadKeyStatusDTO(resource, ReuploadKeyStatus.COMPLETED);

		reuploadKeyService.updateResourceData(dto);

		verifyZeroInteractions(exploratoryDAO, computationalDAO);
	}

	@Test
	public void updateResourceDataForEdgeWhenStatusFailed() {
		ResourceData resource = new ResourceData(ResourceType.EDGE, "someId", null, null);

		ReuploadKeyStatusDTO dto = getReuploadKeyStatusDTO(resource, ReuploadKeyStatus.FAILED);
		reuploadKeyService.updateResourceData(dto);

		verifyZeroInteractions(exploratoryDAO, computationalDAO);
	}

	@Test
	public void updateResourceDataForExploratoryWhenStatusCompleted() {
		ResourceData resource = new ResourceData(ResourceType.EXPLORATORY, "someId", EXPLORATORY_NAME, null);
		when(exploratoryDAO.updateStatusForExploratory(anyString(), anyString(),
				any(UserInstanceStatus.class))).thenReturn(mock(UpdateResult.class));
		doNothing().when(exploratoryDAO).updateReuploadKeyForExploratory(anyString(), anyString(), anyBoolean());

		ReuploadKeyStatusDTO dto = getReuploadKeyStatusDTO(resource, ReuploadKeyStatus.COMPLETED);

		reuploadKeyService.updateResourceData(dto);

		verify(exploratoryDAO).updateStatusForExploratory(USER, EXPLORATORY_NAME, RUNNING);
		verify(exploratoryDAO).updateReuploadKeyForExploratory(USER, EXPLORATORY_NAME, false);
		verifyNoMoreInteractions(exploratoryDAO);
		verifyZeroInteractions(computationalDAO);
	}

	@Test
	public void updateResourceDataForExploratoryWhenStatusFailed() {
		ResourceData resource = new ResourceData(ResourceType.EXPLORATORY, "someId", EXPLORATORY_NAME, null);
		when(exploratoryDAO.updateStatusForExploratory(anyString(), anyString(),
				any(UserInstanceStatus.class))).thenReturn(mock(UpdateResult.class));

		ReuploadKeyStatusDTO dto = getReuploadKeyStatusDTO(resource, ReuploadKeyStatus.FAILED);

		reuploadKeyService.updateResourceData(dto);

		verify(exploratoryDAO).updateStatusForExploratory(USER, EXPLORATORY_NAME, RUNNING);
		verifyNoMoreInteractions(exploratoryDAO);
		verifyZeroInteractions(computationalDAO);
	}

	@Test
	public void updateResourceDataForClusterWhenStatusCompleted() {
		ResourceData resource = new ResourceData(ResourceType.COMPUTATIONAL, "someId", EXPLORATORY_NAME, "compName");
		doNothing().when(computationalDAO).updateStatusForComputationalResource(anyString(), anyString(), anyString(),
				any(UserInstanceStatus.class));
		doNothing().when(computationalDAO).updateReuploadKeyFlagForComputationalResource(anyString(), anyString(),
				anyString(), anyBoolean());
		ReuploadKeyStatusDTO dto = getReuploadKeyStatusDTO(resource, ReuploadKeyStatus.COMPLETED);

		reuploadKeyService.updateResourceData(dto);

		verify(computationalDAO).updateStatusForComputationalResource(USER, EXPLORATORY_NAME, "compName", RUNNING);
		verify(computationalDAO).updateReuploadKeyFlagForComputationalResource(USER, EXPLORATORY_NAME, "compName",
				false);
		verifyNoMoreInteractions(computationalDAO);
		verifyZeroInteractions(exploratoryDAO);
	}

	@Test
	public void updateResourceDataForClusterWhenStatusFailed() {
		ResourceData resource = new ResourceData(ResourceType.COMPUTATIONAL, "someId", EXPLORATORY_NAME, "compName");
		doNothing().when(computationalDAO).updateStatusForComputationalResource(anyString(), anyString(), anyString(),
				any(UserInstanceStatus.class));
		ReuploadKeyStatusDTO dto = getReuploadKeyStatusDTO(resource, ReuploadKeyStatus.FAILED);

		reuploadKeyService.updateResourceData(dto);

		verify(computationalDAO).updateStatusForComputationalResource(USER, EXPLORATORY_NAME, "compName", RUNNING);
		verifyNoMoreInteractions(computationalDAO);
		verifyZeroInteractions(exploratoryDAO);
	}

	private UserInfo getUserInfo() {
		return new UserInfo(USER, TOKEN);
	}

	private UserInstanceDTO getUserInstance() {
		return new UserInstanceDTO().withUser(USER).withExploratoryName(EXPLORATORY_NAME);
	}

	private ReuploadKeyStatusDTO getReuploadKeyStatusDTO(ResourceData resource, ReuploadKeyStatus status) {
		return new ReuploadKeyStatusDTO().withReuploadKeyCallbackDto(
				new ReuploadKeyCallbackDTO().withResource(resource)).withReuploadKeyStatus(status).withUser(USER);
	}

}