/*-
 * ============LICENSE_START=======================================================
 * SDC
 * ================================================================================
 * Copyright (C) 2019 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=========================================================
 */

package org.openecomp.sdc.be.model.jsonjanusgraph.operations;

import fj.data.Either;
import org.apache.tinkerpop.gremlin.structure.Direction;
import org.apache.tinkerpop.gremlin.structure.Edge;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.apache.tinkerpop.gremlin.structure.VertexProperty;
import org.apache.tinkerpop.gremlin.structure.util.empty.EmptyVertexProperty;
import org.junit.Before;
import org.junit.Test;
import org.junit.runner.RunWith;
import org.mockito.InjectMocks;
import org.mockito.Mock;
import org.mockito.junit.MockitoJUnitRunner;
import org.openecomp.sdc.be.dao.janusgraph.JanusGraphOperationStatus;
import org.openecomp.sdc.be.dao.janusgraph.JanusGraphDao;
import org.openecomp.sdc.be.dao.jsongraph.types.EdgeLabelEnum;
import org.openecomp.sdc.be.dao.neo4j.GraphPropertiesDictionary;
import org.openecomp.sdc.be.model.catalog.CatalogComponent;

import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.when;

@RunWith(MockitoJUnitRunner.class)
public class ToscaElementOperationCatalogTest {

    private static final String UPDATER_ID = "m08740";
    private ArrayList<Vertex> vertexList = new ArrayList<>();

    @Mock Edge edge;
    @Mock Vertex vertex;
    @Mock Vertex outVertex;
    @Mock Iterator<Edge> edges;
    @Mock JanusGraphDao janusGraphDao;
    @Mock VertexProperty<Object> property;
    @Mock VertexProperty<Object> updaterProperty;

    @InjectMocks
    private ToscaElementOperation toscaOperation = new TopologyTemplateOperation();

    @Before
    public void setUp() {
        vertexList.add(vertex);
        when(janusGraphDao.getCatalogOrArchiveVertices(true)).thenReturn(Either.left(vertexList.iterator()));
        when(janusGraphDao.getChildVertex(vertex, EdgeLabelEnum.CATEGORY))
                .thenReturn(Either.right(JanusGraphOperationStatus.NOT_FOUND));
        when(vertex.property(GraphPropertiesDictionary.METADATA.getProperty())).thenReturn(property);
    }

    private void stubEmptyUpdater() {
        when(vertex.edges(Direction.IN, EdgeLabelEnum.STATE.name())).thenReturn(edges);
        when(edges.hasNext()).thenReturn(false);
    }

    private void stubExistingUpdater() {
        when(vertex.edges(Direction.IN, EdgeLabelEnum.STATE.name())).thenReturn(edges);
        when(edges.hasNext()).thenReturn(true);
        when(edges.next()).thenReturn(edge);
        when(edge.outVertex()).thenReturn(outVertex);
        when(updaterProperty.value()).thenReturn(UPDATER_ID);
        when(outVertex.property(GraphPropertiesDictionary.USERID.getProperty())).thenReturn(updaterProperty);
    }

    @Test
    public void getComponentFromCatalogWhenDeleteIsTrue() {
        final String vertexJsonIsDeletedTrue = "{\"lifecycleState\":\"CERTIFIED\",\"componentType\":\"RESOURCE\",\"vendorRelease\":\"1\",\"contactId\":\"ah7840\",\"lastUpdateDate\":1496119811038,\"icon\":\"att\",\"description\":\"Cloud\",\"creationDate\":1459432094781,\"vendorName\":\"AT&T\",\"mandatory\":false,\"version\":\"1.0\",\"tags\":[\"Cloud\"],\"highestVersion\":true,\"systemName\":\"Cloud\",\"name\":\"Cloud\",\"isDeleted\":true,\"invariantUuid\":\"ab5263fd-115c-41f2-8d0c-8b9279bce2b2\",\"UUID\":\"208cf7df-68a1-4ae7-afc9-409ea8012332\",\"normalizedName\":\"cloud\",\"toscaResourceName\":\"org.openecomp.resource.Endpoint.Cloud\",\"uniqueId\":\"9674e7e1-bc1a-41fe-b503-fbe996801475\",\"resourceType\":\"VFC\"}";
        when(property.value()).thenReturn(vertexJsonIsDeletedTrue);
        List<CatalogComponent> componentList = toscaOperation.getElementCatalogData(true, null).left().value();
        assertTrue(componentList.isEmpty());
    }

    @Test
    public void getComponentFromCatalogWhenDeleteNotFound() {
        stubEmptyUpdater();
        final String vertexJsonIsDeletedNotFound = "{\"lifecycleState\":\"CERTIFIED\",\"componentType\":\"RESOURCE\",\"vendorRelease\":\"1\",\"contactId\":\"ah7840\",\"lastUpdateDate\":1496119811038,\"icon\":\"att\",\"description\":\"Cloud\",\"creationDate\":1459432094781,\"vendorName\":\"AT&T\",\"mandatory\":false,\"version\":\"1.0\",\"tags\":[\"Cloud\"],\"highestVersion\":true,\"systemName\":\"Cloud\",\"name\":\"Cloud\",\"invariantUuid\":\"ab5263fd-115c-41f2-8d0c-8b9279bce2b2\",\"UUID\":\"208cf7df-68a1-4ae7-afc9-409ea8012332\",\"normalizedName\":\"cloud\",\"toscaResourceName\":\"org.openecomp.resource.Endpoint.Cloud\",\"uniqueId\":\"9674e7e1-bc1a-41fe-b503-fbe996801475\",\"resourceType\":\"VFC\"}";
        when(property.value()).thenReturn(vertexJsonIsDeletedNotFound);
        List<CatalogComponent> componentList = toscaOperation.getElementCatalogData(true, null).left().value();
        assertEquals(1, componentList.size());
    }

    @Test
    public void getComponentFromCatalogWhenDeleteIsFalse() {
        stubExistingUpdater();
        final String vertexJsonIsDeletedFalse = "{\"lifecycleState\":\"CERTIFIED\",\"componentType\":\"RESOURCE\",\"vendorRelease\":\"1\",\"contactId\":\"ah7840\",\"lastUpdateDate\":1496119811038,\"icon\":\"att\",\"description\":\"Cloud\",\"creationDate\":1459432094781,\"vendorName\":\"AT&T\",\"mandatory\":false,\"version\":\"1.0\",\"tags\":[\"Cloud\"],\"highestVersion\":true,\"systemName\":\"Cloud\",\"name\":\"Cloud\",\"isDeleted\":false,\"invariantUuid\":\"ab5263fd-115c-41f2-8d0c-8b9279bce2b2\",\"UUID\":\"208cf7df-68a1-4ae7-afc9-409ea8012332\",\"normalizedName\":\"cloud\",\"toscaResourceName\":\"org.openecomp.resource.Endpoint.Cloud\",\"uniqueId\":\"9674e7e1-bc1a-41fe-b503-fbe996801475\",\"resourceType\":\"VFC\"}";
        when(property.value()).thenReturn(vertexJsonIsDeletedFalse);
        List<CatalogComponent> componentList = toscaOperation.getElementCatalogData(true, null).left().value();
        assertEquals(1, componentList.size());
        assertEquals(UPDATER_ID, componentList.get(0).getLastUpdaterUserId());
    }

    @Test
    public void thatVertexIsSkippedIfItHasNoMetadataProperty() {
        VertexProperty<Object> emptyVertexProperty = new EmptyVertexProperty<>();
        when(vertex.property(GraphPropertiesDictionary.METADATA.getProperty())).thenReturn(emptyVertexProperty);

        List<CatalogComponent> componentList = toscaOperation.getElementCatalogData(true, null).left().value();
        assertEquals(0, componentList.size());
    }

}