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/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END=========================================================
 * Modifications copyright (c) 2019 Nokia
 * ================================================================================
 */
package org.openecomp.sdc.be.components.scheduledtasks;

import com.google.common.collect.Lists;
import fj.data.Either;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import org.openecomp.sdc.be.components.impl.BaseBusinessLogicMock;
import org.openecomp.sdc.be.components.impl.ResourceBusinessLogic;
import org.openecomp.sdc.be.components.impl.ServiceBusinessLogic;
import org.openecomp.sdc.be.datatypes.enums.NodeTypeEnum;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.model.operations.api.IGraphLockOperation;
import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;
import org.openecomp.sdc.exception.ResponseFormat;

import java.util.ArrayList;
import java.util.List;
import java.util.Map;

import static org.assertj.core.api.AssertionsForClassTypes.assertThat;
import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.times;
import static org.mockito.Mockito.verify;
import static org.mockito.Mockito.when;

public class ComponentsCleanBusinessLogicTest extends BaseBusinessLogicMock {

    private ResourceBusinessLogic resourceBusinessLogic = Mockito.mock(ResourceBusinessLogic.class);
    private ServiceBusinessLogic serviceBusinessLogic = Mockito.mock(ServiceBusinessLogic.class);
    private IGraphLockOperation graphLockOperation = Mockito.mock(IGraphLockOperation.class);
    private ComponentsUtils componentsUtils = Mockito.mock(ComponentsUtils.class);

    private ComponentsCleanBusinessLogic componentsCleanBL = new ComponentsCleanBusinessLogic(elementDao, groupOperation,
        groupInstanceOperation, groupTypeOperation, interfaceOperation, interfaceLifecycleTypeOperation,
        resourceBusinessLogic, serviceBusinessLogic, artifactToscaOperation);

    @Before
    public void setUp() {
        mockResourceDeleting();
        mockServiceDeleting();
        componentsCleanBL.setGraphLockOperation(graphLockOperation);
        componentsCleanBL.setComponentsUtils(componentsUtils);
    }

    @Test
    public void deleteAll() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.Resource);
        cleanList.add(NodeTypeEnum.Service);
        when(graphLockOperation.lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER),
                eq(NodeTypeEnum.Component))).thenReturn(StorageOperationStatus.OK);
        componentsCleanBL.cleanComponents(cleanList);
        verify(resourceBusinessLogic).deleteMarkedComponents();
        verify(serviceBusinessLogic).deleteMarkedComponents();
        verify(graphLockOperation).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }

    @Test
    public void deleteResourceWhenOperationAlreadyLocked() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.Resource);
        componentsCleanBL.cleanComponents(cleanList, true);
        verify(resourceBusinessLogic).deleteMarkedComponents();
        verify(graphLockOperation, times(0)).lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any());
        verify(graphLockOperation, times(0)).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }

    @Test
    public void deleteResource() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.Resource);
        when(graphLockOperation.lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER),
                eq(NodeTypeEnum.Component))).thenReturn(StorageOperationStatus.OK);
        componentsCleanBL.cleanComponents(cleanList);
        verify(resourceBusinessLogic).deleteMarkedComponents();
        verify(graphLockOperation).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }

    @Test
    public void deleteServiceWhenOperationAlreadyLocked() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.Service);
        componentsCleanBL.cleanComponents(cleanList, true);
        verify(serviceBusinessLogic).deleteMarkedComponents();
        verify(graphLockOperation, times(0)).lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any());
        verify(graphLockOperation, times(0)).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }


    @Test
    public void deleteResourceIsNotCalledDueToCleanupLock() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();

        cleanList.add(NodeTypeEnum.Resource);
        when(graphLockOperation.lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER),
                eq(NodeTypeEnum.Component))).thenReturn(StorageOperationStatus.FAILED_TO_LOCK_ELEMENT);
        Map<NodeTypeEnum, Either<List<String>, ResponseFormat>> cleanedComponents = componentsCleanBL.cleanComponents(cleanList);

        assertThat(cleanedComponents.get(NodeTypeEnum.Resource)).isNotNull();
        verify(resourceBusinessLogic, times(0)).deleteMarkedComponents();
        verify(graphLockOperation, times(0)).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }


    @Test
    public void deleteService() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.Service);
        when(graphLockOperation.lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER),
                eq(NodeTypeEnum.Component))).thenReturn(StorageOperationStatus.OK);
        componentsCleanBL.cleanComponents(cleanList);
        verify(serviceBusinessLogic).deleteMarkedComponents();
        verify(graphLockOperation).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }

    @Test
    public void deleteServiceIsNotCalledDueToCleanupLock() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.Service);
        when(graphLockOperation.lockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER),
                eq(NodeTypeEnum.Component))).thenReturn(StorageOperationStatus.FAILED_TO_LOCK_ELEMENT);

        Map<NodeTypeEnum, Either<List<String>, ResponseFormat>> cleanedComponents = componentsCleanBL.cleanComponents(cleanList);

        assertThat(cleanedComponents.get(NodeTypeEnum.Service)).isNotNull();
        verify(serviceBusinessLogic, times(0)).deleteMarkedComponents();
        verify(graphLockOperation, times(0)).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }

    @Test
    public void deleteWrongElement() {
        List<NodeTypeEnum> cleanList = new ArrayList<>();
        cleanList.add(NodeTypeEnum.User);
        componentsCleanBL.cleanComponents(cleanList);
        verify(resourceBusinessLogic, times(0)).deleteMarkedComponents();
        verify(serviceBusinessLogic, times(0)).deleteMarkedComponents();
        verify(graphLockOperation, times(0)).unlockComponentByName(eq(ComponentsCleanBusinessLogic.DELETE_LOCKER), any(),
                eq(NodeTypeEnum.Component));
    }

    private void mockResourceDeleting() {
        when(resourceBusinessLogic.deleteMarkedComponents()).thenReturn(Either.left(Lists.newArrayList()));
    }

    private void mockServiceDeleting() {
        when(serviceBusinessLogic.deleteMarkedComponents()).thenReturn(Either.left(Lists.newArrayList()));
    }

}