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package org.openecomp.sdc.be.components.merge.input;

import fj.data.Either;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import org.openecomp.sdc.be.auditing.impl.AuditingManager;
import org.openecomp.sdc.be.components.utils.ObjectGenerator;
import org.openecomp.sdc.be.components.utils.ResourceBuilder;
import org.openecomp.sdc.be.dao.api.ActionStatus;
import org.openecomp.sdc.be.datatypes.elements.PropertyDataDefinition;
import org.openecomp.sdc.be.impl.ComponentsUtils;
import org.openecomp.sdc.be.model.InputDefinition;
import org.openecomp.sdc.be.model.Resource;
import org.openecomp.sdc.be.model.operations.api.StorageOperationStatus;

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

import static java.util.Collections.emptyList;
import static org.assertj.core.api.Assertions.assertThat;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.doCallRealMethod;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.verifyZeroInteractions;
import static org.mockito.Mockito.when;
import static org.openecomp.sdc.be.components.utils.Conditions.hasPropertiesWithNames;
import static org.openecomp.sdc.be.dao.utils.CollectionUtils.union;

public class ComponentInputsMergeBLTest extends BaseComponentInputsMerge {

    private ComponentInputsMergeBL testInstance;

    @Before
    @Override
    public void setUp() throws Exception {
        super.setUp();
        testInstance = new ComponentInputsMergeBL(inputsValuesMergingBusinessLogic, declaredInputsResolver, toscaOperationFacade, new ComponentsUtils(mock(AuditingManager.class)));
    }

    @Test
    public void whenOldComponentHasNoInputs_returnOk() {
        ActionStatus actionStatus = testInstance.mergeComponents(new Resource(), new Resource());
        assertThat(actionStatus).isEqualTo(ActionStatus.OK);
        verifyZeroInteractions(toscaOperationFacade, inputsValuesMergingBusinessLogic, declaredInputsResolver);
    }

    @Test
    public void whenCurrResourceHasNoProperties_noRedeclarationOFInputsRequired() {
        Resource newResource = new ResourceBuilder().setUniqueId(RESOURCE_ID).build();
        when(toscaOperationFacade.updateInputsToComponent(emptyList(), RESOURCE_ID)).thenReturn(Either.left(null));
        doCallRealMethod().when(inputsValuesMergingBusinessLogic).mergeComponentInputs(Mockito.anyList(), Mockito.anyList());
        ActionStatus actionStatus = testInstance.mergeComponents(prevResource, newResource);
        assertThat(actionStatus).isEqualTo(ActionStatus.OK);
        verifyCallToMergeComponentInputs(prevResource, emptyList());
    }

    @Test
    public void whenCurrResourceHasNoInputs_noMergeRequired_updateResourceWithInputsDeclaredInPrevVersion() {
        List<InputDefinition> prevDeclaredInputs = ObjectGenerator.buildInputs("declared1", "declared2");
        currResource.setInputs(null);
        when(declaredInputsResolver.getPreviouslyDeclaredInputsToMerge(eq(prevResource), eq(currResource), getInputPropertiesCaptor.capture())).thenReturn(prevDeclaredInputs);
        when(toscaOperationFacade.updateInputsToComponent(prevDeclaredInputs, RESOURCE_ID)).thenReturn(Either.left(null));
        doCallRealMethod().when(inputsValuesMergingBusinessLogic).mergeComponentInputs(Mockito.anyList(), Mockito.anyList());
        ActionStatus actionStatus = testInstance.mergeComponents(prevResource, currResource);
        assertThat(actionStatus).isEqualTo(ActionStatus.OK);
        verifyCallToMergeComponentInputs(prevResource, emptyList());
        verifyPropertiesPassedToDeclaredInputsResolver();
    }

    @Test
    public void findInputsDeclaredFromPropertiesAndMergeThemIntoNewComponent() {
        List<InputDefinition> prevDeclaredInputs = ObjectGenerator.buildInputs("declared1", "declared2");
        List<InputDefinition> currInputsPreMerge = new ArrayList<>(currResource.getInputs());
        when(declaredInputsResolver.getPreviouslyDeclaredInputsToMerge(eq(prevResource), eq(currResource), getInputPropertiesCaptor.capture())).thenReturn(prevDeclaredInputs);
        List<InputDefinition> expectedInputsToUpdate = union(currInputsPreMerge, prevDeclaredInputs);
        when(toscaOperationFacade.updateInputsToComponent(expectedInputsToUpdate, RESOURCE_ID)).thenReturn(Either.left(null));
        doCallRealMethod().when(inputsValuesMergingBusinessLogic).mergeComponentInputs(Mockito.anyList(), Mockito.anyList());
        ActionStatus actionStatus = testInstance.mergeComponents(prevResource, currResource);
        assertThat(actionStatus).isEqualTo(ActionStatus.OK);
        verifyCallToMergeComponentInputs(prevResource, currInputsPreMerge);
        verifyPropertiesPassedToDeclaredInputsResolver();
    }

    @Test
    public void whenFailingToUpdateInputs_propagateTheError() {
        Resource newResource = new ResourceBuilder().setUniqueId(RESOURCE_ID).build();
        when(toscaOperationFacade.updateInputsToComponent(emptyList(), RESOURCE_ID)).thenReturn(Either.right(StorageOperationStatus.GENERAL_ERROR));
        ActionStatus actionStatus = testInstance.mergeComponents(prevResource, newResource);
        assertThat(actionStatus).isEqualTo(ActionStatus.GENERAL_ERROR);
    }

    private void verifyPropertiesPassedToDeclaredInputsResolver() {
        Map<String, List<PropertyDataDefinition>> allResourceProps = getInputPropertiesCaptor.getValue();
        assertThat(allResourceProps)
                .hasEntrySatisfying("inst1", hasPropertiesWithNames("prop1", "prop2"))
                .hasEntrySatisfying("inst2", hasPropertiesWithNames("prop3"))
                .hasEntrySatisfying("group1", hasPropertiesWithNames("prop1"))
                .hasEntrySatisfying("policy1", hasPropertiesWithNames("prop2"));
    }
}