/**
 * ============LICENSE_START=======================================================
 * org.onap.aai
 * ================================================================================
 * Copyright © 2017-2018 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.onap.aai.dbgraphmap;

import org.janusgraph.core.JanusGraph;
import org.janusgraph.graphdb.types.system.EmptyVertex;
import org.apache.tinkerpop.gremlin.process.traversal.dsl.graph.GraphTraversalSource;
import org.apache.tinkerpop.gremlin.structure.Graph;
import org.apache.tinkerpop.gremlin.structure.Vertex;
import org.eclipse.persistence.dynamic.DynamicEntity;
import org.junit.Assert;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import org.onap.aai.AAISetup;
import org.onap.aai.dbmap.DBConnectionType;
import org.onap.aai.exceptions.AAIException;
import org.onap.aai.extensions.AAIExtensionMap;
import org.onap.aai.introspection.*;
import org.onap.aai.parsers.relationship.RelationshipToURI;
import org.onap.aai.serialization.db.DBSerializer;
import org.onap.aai.serialization.engines.QueryStyle;
import org.onap.aai.serialization.engines.JanusGraphDBEngine;
import org.onap.aai.serialization.engines.TransactionalGraphEngine;
import org.onap.aai.serialization.queryformats.utils.UrlBuilder;
import org.onap.aai.setup.SchemaVersion;


import javax.servlet.http.HttpServletRequest;
import javax.ws.rs.core.*;
import java.net.URI;
import java.util.*;
import java.util.stream.Stream;

import static org.mockito.Matchers.anyObject;
import static org.mockito.Mockito.*;

public class SearchGraphTest extends AAISetup{

	

    protected static final MediaType APPLICATION_JSON = MediaType.valueOf("application/json");

    private static final Set<Integer> VALID_HTTP_STATUS_CODES = new HashSet<>();

    private SchemaVersion version;
    private final static ModelType introspectorFactoryType = ModelType.MOXY;
    private final static QueryStyle queryStyle = QueryStyle.TRAVERSAL;
    private final static DBConnectionType type = DBConnectionType.REALTIME;

    static {
        VALID_HTTP_STATUS_CODES.add(200);
        VALID_HTTP_STATUS_CODES.add(201);
        VALID_HTTP_STATUS_CODES.add(204);
    }

    private HttpHeaders httpHeaders;

    private UriInfo uriInfo;

    private MultivaluedMap<String, String> headersMultiMap;
    private MultivaluedMap<String, String> queryParameters;

    private List<String> aaiRequestContextList;

    private List<MediaType> outputMediaTypes;

    private Loader loader;
    private JanusGraph graph;

    private Graph tx;

    private GraphTraversalSource g;
    private TransactionalGraphEngine dbEngine;

    @Before
    public void setup(){

        version = schemaVersions.getDefaultVersion();
        httpHeaders         = mock(HttpHeaders.class);
        uriInfo             = mock(UriInfo.class);

        headersMultiMap     = new MultivaluedHashMap<>();
        queryParameters     = Mockito.spy(new MultivaluedHashMap<>());

        headersMultiMap.add("X-FromAppId", "JUNIT");
        headersMultiMap.add("X-TransactionId", UUID.randomUUID().toString());
        headersMultiMap.add("Real-Time", "true");
        headersMultiMap.add("Accept", "application/json");
        headersMultiMap.add("aai-request-context", "");

        outputMediaTypes = new ArrayList<>();
        outputMediaTypes.add(APPLICATION_JSON);

        aaiRequestContextList = new ArrayList<>();
        aaiRequestContextList.add("");

        when(httpHeaders.getAcceptableMediaTypes()).thenReturn(outputMediaTypes);
        when(httpHeaders.getRequestHeaders()).thenReturn(headersMultiMap);
        when(httpHeaders.getRequestHeader("X-FromAppId")).thenReturn(Arrays.asList("JUNIT"));
        when(httpHeaders.getRequestHeader("X-TransactionId")).thenReturn(Arrays.asList("JUNIT"));

        when(httpHeaders.getRequestHeader("aai-request-context")).thenReturn(aaiRequestContextList);


        when(uriInfo.getQueryParameters()).thenReturn(queryParameters);
        when(uriInfo.getQueryParameters(false)).thenReturn(queryParameters);

        // TODO - Check if this is valid since RemoveDME2QueryParameters seems to be very unreasonable
        Mockito.doReturn(null).when(queryParameters).remove(anyObject());

        when(httpHeaders.getMediaType()).thenReturn(APPLICATION_JSON);
        loader = loaderFactory.createLoaderForVersion(introspectorFactoryType, version);
        dbEngine = new JanusGraphDBEngine(
                queryStyle,
                type,
                loader);
    }

    @Test(expected = AAIException.class)
    public void runNodesQuery() throws  AAIException{
        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer, schemaVersions, basePath);
        searchGraph.runNodesQuery(httpHeaders,"",null,
                null,dbEngine,loader,urlBuilder);
    }
    @Test(expected = AAIException.class)
    public void runNodesQueryNull() throws  AAIException{
        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer, schemaVersions, basePath);
        searchGraph.runNodesQuery(httpHeaders,"nnn",null,
                null,dbEngine,loader,urlBuilder);
    }
    @Test(expected = AAIException.class)
    public void testRunGenericQueryFailWhenInvalidRelationshipList() throws AAIException {

        List<String> keys = new ArrayList<>();
        keys.add("cloud-region.cloud-owner:test-aic");

        List<String> includeStrings = new ArrayList<>();
        includeStrings.add("cloud-region");

        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer, schemaVersions, basePath);
        Response response = searchGraph.runGenericQuery(httpHeaders, "service-instance", keys, includeStrings, 1, dbEngine, loader, urlBuilder);
        System.out.println(response);
    }


    @Test(expected = AAIException.class)
    public void testRunGenericQueryFailWhenInvalidRelationshipList1() throws AAIException {

        List<String> keys = new ArrayList<>();
        keys.add("cloud-region.cloud-owner:test-aic");

        List<String> includeStrings = new ArrayList<>();
        includeStrings.add("cloud-region");

        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer, schemaVersions, basePath);
        Response response = searchGraph.runGenericQuery(httpHeaders, null, keys, includeStrings, 1, dbEngine, loader, urlBuilder);
        System.out.println(response);
    }

    @Test(expected = AAIException.class)
    public void testRunGenericQueryFailWhenInvalidRelationshipList2() throws AAIException {

        List<String> keys = new ArrayList<>();
        keys.add("cloud-region.cloud-owner:test-aic");

        List<String> includeStrings = new ArrayList<>();
        includeStrings.add("cloud-region");

        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer, schemaVersions, basePath);
        Response response = searchGraph.runGenericQuery(httpHeaders, "", null, includeStrings, 1, dbEngine, loader, urlBuilder);
        System.out.println(response);
    }

    @Test(expected = AAIException.class)
    public void testRunGenericQueryFailWhenInvalidRelationshipList3() throws AAIException {

        List<String> keys = new ArrayList<>();
        keys.add("cloud-region.cloud-owner:test-aic");

        List<String> includeStrings = new ArrayList<>();
        includeStrings.add("cloud-region");

        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer, schemaVersions, basePath);
        Response response = searchGraph.runGenericQuery(httpHeaders, "", keys, null, 1, dbEngine, loader, urlBuilder);
        System.out.println(response);
    }


    /*@Test(expected = NullPointerException.class)
    public void createSearchResults() throws AAIException {

        List<Vertex> keys = new ArrayList<>();
        Vertex vertex=new EmptyVertex();
        keys.add(vertex);



        List<String> includeStrings = new ArrayList<>();
        includeStrings.add("cloud-region");

        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        UrlBuilder urlBuilder = new UrlBuilder(version, serializer);
        Introspector response = searchGraph.createSearchResults(loader, urlBuilder, keys);
        System.out.println(response);
    }*/
    @Test
    public void createSearchResults1() throws Exception {

        List<Vertex> keys = new ArrayList<>();
        Vertex vertex=new EmptyVertex();
        keys.add(vertex);
         DBSerializer ds=mock(DBSerializer.class);
          UrlBuilder urlBuilder=mock(UrlBuilder.class);
          when(urlBuilder.pathed(vertex)).thenReturn("cloud-region");
        Stream<Vertex> stream=mock(Stream.class);
        when(stream.isParallel()).thenReturn(true);
        List<String> includeStrings = new ArrayList<>();
        includeStrings.add("cloud-region");
        RelationshipToURI relationshipToURI=mock(RelationshipToURI.class);
        URI uri =new URI("");
        when(relationshipToURI.getUri()).thenReturn(uri);

        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
     //   UrlBuilder urlBuilder = new UrlBuilder(version, serializer);
        Introspector response = searchGraph.createSearchResults(loader, urlBuilder, keys);
        System.out.println(response);
    }
    @Test(expected = AAIException.class)
    public void executeModelOperationTest() throws  Exception{
        Vertex vertex=new EmptyVertex();
        vertex.property("model-name");
        Map<String,Object> mapObj=new HashMap<String,Object>();
        mapObj.put("modle-version",vertex);
        List<Map<String,Object>> startNodeFilterArrayOfHashes=new ArrayList<>();
        startNodeFilterArrayOfHashes.add(mapObj);
        List<org.onap.aai.dbgraphgen.ResultSet> resultSet=new ArrayList<org.onap.aai.dbgraphgen.ResultSet>();
        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
      //  ModelBasedProcessing processor = new ModelBasedProcessing(loader, dbEngine, serializer);
        AAIExtensionMap map=mock(AAIExtensionMap.class);
        HttpServletRequest servletRequest=mock(HttpServletRequest.class);

        when(map.getHttpServletRequest()).thenReturn(servletRequest);
        when(servletRequest.getContentType()).thenReturn("application/json");
        DynamicEntity modelAndNamedQuerySearch=mock(DynamicEntity.class);
        when(modelAndNamedQuerySearch.isSet("topNodeType")).thenReturn(true);


/*        when(processor.queryByModel("9999","model-ver","model-version-id",
                "model-inv-id","modelname","aai",
                startNodeFilterArrayOfHashes,"aai-ver")).thenReturn(resultSet);*/

        searchGraph.executeModelOperation("","","",type,true,
                map);
    }

    @Test(expected = AAIException.class)
    public void executeModelOperationXMLTest() throws  Exception{
        Vertex vertex=new EmptyVertex();
        vertex.property("model-name");
        Map<String,Object> mapObj=new HashMap<String,Object>();
        mapObj.put("modle-version",vertex);
        List<Map<String,Object>> startNodeFilterArrayOfHashes=new ArrayList<>();
        startNodeFilterArrayOfHashes.add(mapObj);
        List<org.onap.aai.dbgraphgen.ResultSet> resultSet=new ArrayList<org.onap.aai.dbgraphgen.ResultSet>();
        DBSerializer serializer = new DBSerializer(version, dbEngine, introspectorFactoryType, "JUNIT");
        //  ModelBasedProcessing processor = new ModelBasedProcessing(loader, dbEngine, serializer);
        AAIExtensionMap map=mock(AAIExtensionMap.class);
        HttpServletRequest servletRequest=mock(HttpServletRequest.class);

        when(map.getHttpServletRequest()).thenReturn(servletRequest);
        when(servletRequest.getContentType()).thenReturn("application/xml");

        DynamicEntity modelAndNamedQuerySearch=mock(DynamicEntity.class);
        when(modelAndNamedQuerySearch.isSet("queryParameters")).thenReturn(true);
/*        when(processor.queryByModel("9999","model-ver","model-version-id",
                "model-inv-id","modelname","aai",
                startNodeFilterArrayOfHashes,"aai-ver")).thenReturn(resultSet);*/

        searchGraph.executeModelOperation("","","",type,true,
                map);
    }
    @Test
    public void runNodesQueryTest() throws  AAIException{
        UrlBuilder urlBuilder=mock(UrlBuilder.class);
        List<String> filter=new ArrayList<String>();
        filter.add("model:EQUALS:DOES-NOT-EXIST:AAI");
        List<String> edgeFilter=new ArrayList<String>();
        edgeFilter.add("model:DOES-NOT-EXIST:DOES-NOT-EXIST:AAI");
      Response response=  searchGraph.runNodesQuery(httpHeaders,"model-ver",edgeFilter,
                filter,dbEngine,loader,urlBuilder);
        Assert.assertNotNull(response);
    }

    @Test
    public void runNodesQueryExistsTest() throws  AAIException{
        UrlBuilder urlBuilder=mock(UrlBuilder.class);
        List<String> filter=new ArrayList<String>();
        filter.add("model:EQUALS:DOES-NOT-EXIST:AAI");
        List<String> edgeFilter=new ArrayList<String>();
        edgeFilter.add("model:EXISTS:DOES-NOT-EXIST:AAI");
        Response response=  searchGraph.runNodesQuery(httpHeaders,"model-ver",edgeFilter,
                filter,dbEngine,loader,urlBuilder);
        Assert.assertNotNull(response);
    }

    @Test
    public void runNodesQueryTestDOESNOTEQUAL() throws  AAIException{
        UrlBuilder urlBuilder=mock(UrlBuilder.class);
        List<String> filter=new ArrayList<String>();
        filter.add("model:DOES-NOT-EQUAL:DOES-NOT-EXIST");
        List<String> edgeFilter=new ArrayList<String>();
        searchGraph.runNodesQuery(httpHeaders,"model-ver",edgeFilter,
                filter,dbEngine,loader,urlBuilder);
    }

    @Test
    public void runNodesQueryTestGreaterThan3() throws  AAIException{
        UrlBuilder urlBuilder=mock(UrlBuilder.class);
        List<String> filter=new ArrayList<String>();
        filter.add("model:DOES-NOT-EQUAL:DOES-NOT-EXIST:AAI");
        List<String> edgeFilter=new ArrayList<String>();
        searchGraph.runNodesQuery(httpHeaders,"model-ver",edgeFilter,
                filter,dbEngine,loader,urlBuilder);
    }

    @Test
    public void runNodesQueryTestGreaterThanExists() throws  AAIException{
        UrlBuilder urlBuilder=mock(UrlBuilder.class);
        List<String> filter=new ArrayList<String>();
        filter.add("model:EXISTS:DOES-NOT-EXIST:AAI");
        List<String> edgeFilter=new ArrayList<String>();
        searchGraph.runNodesQuery(httpHeaders,"model-ver",edgeFilter,
                filter,dbEngine,loader,urlBuilder);
    }

    @Test(expected = AAIException.class)
    public void runNodesQueryTestGreaterThanDoesNotExists() throws  AAIException{
        UrlBuilder urlBuilder=mock(UrlBuilder.class);
        List<String> filter=new ArrayList<String>();
        filter.add("model:DOES_NOT_EXIST:DOES-NOT-EXIST:AAI");
        List<String> edgeFilter=new ArrayList<String>();
        searchGraph.runNodesQuery(httpHeaders,"model-ver",edgeFilter,
                filter,dbEngine,loader,urlBuilder);
    }
}