/*
 * Copyright (c) 2014, 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.cluster.datastore.node.utils;

import static junit.framework.TestCase.assertEquals;

import com.google.common.collect.ImmutableSet;
import java.util.HashMap;
import java.util.Map;
import java.util.Set;
import org.junit.Test;
import org.opendaylight.controller.cluster.datastore.util.TestModel;
import org.opendaylight.yangtools.yang.common.QName;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.AugmentationIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifier;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeIdentifierWithPredicates;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.NodeWithValue;
import org.opendaylight.yangtools.yang.data.api.YangInstanceIdentifier.PathArgument;

public class PathUtilsTest {

    @Test
    public void toStringNodeIdentifier() {
        PathArgument pathArgument = nodeIdentifier();

        String expected =
            "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test";

        assertEquals(expected , PathUtils.toString(pathArgument));
    }

    @Test
    public void toStringAugmentationIdentifier() {
        String expected =
            "AugmentationIdentifier{childNames=[(urn:opendaylight:flow:table:statistics?revision=2013-12-15)"
            + "flow-table-statistics]}";

        PathArgument pathArgument = augmentationIdentifier();

        assertEquals(expected, PathUtils.toString(pathArgument));
    }

    @Test
    public void toStringNodeWithValue() {

        PathArgument pathArgument = nodeWithValue();

        String expected =
                "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test[100]";

        assertEquals(expected, PathUtils.toString(pathArgument));
    }


    @Test
    public void toStringNodeIdentifierWithPredicates() {

        PathArgument pathArgument = nodeIdentifierWithPredicates();

        String expected =
                "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test["
                + "{(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)id=100}]";

        assertEquals(expected, PathUtils.toString(pathArgument));
    }

    @Test
    public void toStringYangInstanceIdentifier() {

        YangInstanceIdentifier path =
            YangInstanceIdentifier.create(nodeIdentifier())
                .node(nodeIdentifierWithPredicates())
                .node(augmentationIdentifier()).node(nodeWithValue());


        String expected =
            "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test/"
            + "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test["
            + "{(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)id=100}]/"
            + "AugmentationIdentifier{childNames=[(urn:opendaylight:flow:table:statistics?revision=2013-12-15)"
            + "flow-table-statistics]}/"
            + "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test[100]";

        assertEquals(expected, PathUtils.toString(path));

    }

    @Test
    public void toYangInstanceIdentifier() {
        String expected =
            "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test/"
            + "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test["
            + "{(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)id=100}]/"
            + "AugmentationIdentifier{childNames=[(urn:opendaylight:flow:table:statistics?revision=2013-12-15)"
            + "flow-table-statistics]}/"
            + "(urn:opendaylight:params:xml:ns:yang:controller:md:sal:dom:store:test?revision=2014-03-13)test[100]";

        YangInstanceIdentifier yangInstanceIdentifier =
            PathUtils.toYangInstanceIdentifier(expected);

        String actual = PathUtils.toString(yangInstanceIdentifier);

        assertEquals(expected, actual);

    }

    private static NodeIdentifier nodeIdentifier() {
        return new NodeIdentifier(TestModel.TEST_QNAME);
    }

    private static AugmentationIdentifier augmentationIdentifier() {
        Set<QName> childNames = ImmutableSet.of(QNameFactory.create(
                "(urn:opendaylight:flow:table:statistics?revision=2013-12-15)flow-table-statistics"));

        return new AugmentationIdentifier(childNames);
    }

    private static NodeWithValue<?> nodeWithValue() {
        return new NodeWithValue<>(TestModel.TEST_QNAME, Integer.valueOf(100));
    }

    private static NodeIdentifierWithPredicates nodeIdentifierWithPredicates() {
        Map<QName, Object> keys = new HashMap<>();

        keys.put(TestModel.ID_QNAME, Integer.valueOf(100));

        return new NodeIdentifierWithPredicates(TestModel.TEST_QNAME, keys);
    }
}