/**
 * Copyright (c) 2015 Cisco Systems, Inc. and others.  All rights reserved.
 *
 * This program and the accompanying materials are made available under the
 * terms of the Eclipse Public License v1.0 which accompanies this distribution,
 * and is available at http://www.eclipse.org/legal/epl-v10.html
 */

package org.opendaylight.controller.sal.rest.impl.test.providers;

import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Matchers.any;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import com.google.common.base.Optional;
import java.io.InputStream;
import javax.ws.rs.core.MediaType;
import org.junit.BeforeClass;
import org.junit.Test;
import org.opendaylight.controller.md.sal.dom.api.DOMMountPoint;
import org.opendaylight.controller.md.sal.dom.api.DOMMountPointService;
import org.opendaylight.controller.sal.rest.impl.JsonNormalizedNodeBodyReader;
import org.opendaylight.controller.sal.restconf.impl.ControllerContext;
import org.opendaylight.controller.sal.restconf.impl.NormalizedNodeContext;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;
import org.opendaylight.yangtools.yang.data.api.schema.ContainerNode;
import org.opendaylight.yangtools.yang.data.api.schema.DataContainerChild;
import org.opendaylight.yangtools.yang.data.api.schema.NormalizedNodes;
import org.opendaylight.yangtools.yang.model.api.DataNodeContainer;
import org.opendaylight.yangtools.yang.model.api.DataSchemaNode;
import org.opendaylight.yangtools.yang.model.api.SchemaContext;

/**
 * sal-rest-connector
 * org.opendaylight.controller.sal.rest.impl.test.providers
 *
 *
 *
 * @author <a href="mailto:vdemcak@cisco.com">Vaclav Demcak</a>
 *
 * Created: Mar 11, 2015
 */
public class TestJsonBodyReaderMountPoint extends AbstractBodyReaderTest {

    private final JsonNormalizedNodeBodyReader jsonBodyReader;
    private static SchemaContext schemaContext;

    public TestJsonBodyReaderMountPoint () throws NoSuchFieldException, SecurityException {
        super();
        jsonBodyReader = new JsonNormalizedNodeBodyReader();
    }

    @Override
    MediaType getMediaType() {
        return new MediaType(MediaType.APPLICATION_XML, null);
    }

    @BeforeClass
    public static void initialization() throws NoSuchFieldException, SecurityException {
        schemaContext = schemaContextLoader("/instanceidentifier/yang", schemaContext);
        schemaContext = schemaContextLoader("/modules", schemaContext);
        schemaContext = schemaContextLoader("/invoke-rpc", schemaContext);
        final DOMMountPoint mountInstance = mock(DOMMountPoint.class);
        when(mountInstance.getSchemaContext()).thenReturn(schemaContext);
        final DOMMountPointService mockMountService = mock(DOMMountPointService.class);
        when(mockMountService.getMountPoint(any(YangInstanceIdentifier.class))).thenReturn(Optional.of(mountInstance));

        ControllerContext.getInstance().setMountService(mockMountService);
        controllerContext.setSchemas(schemaContext);
    }

    @Test
    public void moduleDataTest() throws Exception {
        final DataSchemaNode dataSchemaNode = schemaContext.getDataChildByName("cont");
        final String uri = "instance-identifier-module:cont/yang-ext:mount/instance-identifier-module:cont";
        mockBodyReader(uri, jsonBodyReader, false);
        final InputStream inputStream = TestJsonBodyReaderMountPoint.class
                .getResourceAsStream("/instanceidentifier/json/jsondata.json");
        final NormalizedNodeContext returnValue = jsonBodyReader
                .readFrom(null, null, null, mediaType, null, inputStream);
        checkMountPointNormalizedNodeContext(returnValue);
        checkExpectValueNormalizeNodeContext(dataSchemaNode, returnValue);
    }

    @Test
    public void moduleSubContainerDataPutTest() throws Exception {
        final DataSchemaNode dataSchemaNode = schemaContext.getDataChildByName("cont");
        final String uri = "instance-identifier-module:cont/yang-ext:mount/instance-identifier-module:cont/cont1";
        mockBodyReader(uri, jsonBodyReader, false);
        final InputStream inputStream = TestJsonBodyReaderMountPoint.class
                .getResourceAsStream("/instanceidentifier/json/json_sub_container.json");
        final NormalizedNodeContext returnValue = jsonBodyReader
                .readFrom(null, null, null, mediaType, null, inputStream);
        checkMountPointNormalizedNodeContext(returnValue);
        checkExpectValueNormalizeNodeContext(dataSchemaNode, returnValue, "cont1");
    }

    @Test
    public void moduleSubContainerDataPostTest() throws Exception {
        final DataSchemaNode dataSchemaNode = schemaContext.getDataChildByName("cont");
        final String uri = "instance-identifier-module:cont/yang-ext:mount/instance-identifier-module:cont";
        mockBodyReader(uri, jsonBodyReader, true);
        final InputStream inputStream = TestJsonBodyReaderMountPoint.class
                .getResourceAsStream("/instanceidentifier/json/json_sub_container.json");
        final NormalizedNodeContext returnValue = jsonBodyReader
                .readFrom(null, null, null, mediaType, null, inputStream);
        checkMountPointNormalizedNodeContext(returnValue);
        checkExpectValueNormalizeNodeContext(dataSchemaNode, returnValue);
    }

    @Test
    public void rpcModuleInputTest() throws Exception {
        final String uri = "instance-identifier-module:cont/yang-ext:mount/invoke-rpc-module:rpc-test";
        mockBodyReader(uri, jsonBodyReader, true);
        final InputStream inputStream = TestJsonBodyReaderMountPoint.class
                .getResourceAsStream("/invoke-rpc/json/rpc-input.json");
        final NormalizedNodeContext returnValue = jsonBodyReader
                .readFrom(null, null, null, mediaType, null, inputStream);
        checkNormalizedNodeContext(returnValue);
        final ContainerNode inputNode = (ContainerNode) returnValue.getData();
        final YangInstanceIdentifier yangCont = YangInstanceIdentifier.of(QName.create(inputNode.getNodeType(), "cont"));
        final Optional<DataContainerChild<? extends PathArgument, ?>> contDataNode = inputNode.getChild(yangCont.getLastPathArgument());
        assertTrue(contDataNode.isPresent());
        assertTrue(contDataNode.get() instanceof ContainerNode);
        final YangInstanceIdentifier yangleaf = YangInstanceIdentifier.of(QName.create(inputNode.getNodeType(), "lf"));
        final Optional<DataContainerChild<? extends PathArgument, ?>> leafDataNode = ((ContainerNode)contDataNode.get()).getChild(yangleaf.getLastPathArgument());
        assertTrue(leafDataNode.isPresent());
        assertTrue("lf-test".equalsIgnoreCase(leafDataNode.get().getValue().toString()));
    }

    private void checkExpectValueNormalizeNodeContext(final DataSchemaNode dataSchemaNode,
            final NormalizedNodeContext nnContext) {
        checkExpectValueNormalizeNodeContext(dataSchemaNode, nnContext, null);
    }

    protected void checkExpectValueNormalizeNodeContext(final DataSchemaNode dataSchemaNode,
            final NormalizedNodeContext nnContext, final String localQname) {
        YangInstanceIdentifier dataNodeIdent = YangInstanceIdentifier.of(dataSchemaNode.getQName());
        final DOMMountPoint mountPoint = nnContext.getInstanceIdentifierContext().getMountPoint();
        final DataSchemaNode mountDataSchemaNode =
                mountPoint.getSchemaContext().getDataChildByName(dataSchemaNode.getQName());
        assertNotNull(mountDataSchemaNode);
        if (localQname != null && dataSchemaNode instanceof DataNodeContainer) {
            final DataSchemaNode child = ((DataNodeContainer) dataSchemaNode).getDataChildByName(localQname);
            dataNodeIdent = YangInstanceIdentifier.builder(dataNodeIdent).node(child.getQName()).build();
            assertTrue(nnContext.getInstanceIdentifierContext().getSchemaNode().equals(child));
        } else {
            assertTrue(mountDataSchemaNode.equals(dataSchemaNode));
        }
        assertNotNull(NormalizedNodes.findNode(nnContext.getData(), dataNodeIdent));
    }
}