/*
 * Copyright (c) 2018 Bell Canada, Pantheon Technologies and/or its affiliates.
 *
 * 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.
 */

package io.fd.hc2vpp.srv6.read.sid;

import static org.mockito.ArgumentMatchers.any;
import static org.mockito.ArgumentMatchers.eq;
import static org.mockito.Mockito.when;

import com.google.common.base.Optional;
import io.fd.hc2vpp.common.translate.util.AddressTranslator;
import io.fd.hc2vpp.srv6.write.sid.request.LocalSidRequestTest;
import io.fd.honeycomb.translate.MappingContext;
import io.fd.honeycomb.translate.ModificationCache;
import io.fd.honeycomb.translate.read.ReadContext;
import io.fd.honeycomb.translate.read.ReadFailedException;
import io.fd.jvpp.core.dto.SrLocalsidsDetails;
import io.fd.jvpp.core.dto.SrLocalsidsDetailsReplyDump;
import io.fd.jvpp.core.types.Srv6Sid;
import java.util.Collections;
import java.util.List;
import org.junit.Assert;
import org.junit.Test;
import org.mockito.Mock;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.IpAddress;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv6Prefix;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.srv6._static.rev180301.routing.srv6.locators.locator._static.LocalSidsBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.srv6._static.rev180301.srv6._static.cfg.Sid;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.srv6._static.rev180301.srv6._static.cfg.SidBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.srv6._static.rev180301.srv6._static.cfg.SidKey;

public class SidCustomizerTest extends LocalSidRequestTest {

    private static final Ipv6Address SID_ADR = new Ipv6Address("a::101");

    @Mock
    private ReadContext readCtx;

    @Mock
    private ModificationCache modificationCache;

    @Mock
    private MappingContext mappingContext;

    private SrLocalsidsDetailsReplyDump replyDump = new SrLocalsidsDetailsReplyDump();

    @Override
    protected void init() {
        when(readCtx.getModificationCache()).thenReturn(modificationCache);
        when(modificationCache.get(any())).thenReturn(replyDump);
        when(readCtx.getMappingContext()).thenReturn(mappingContext);
        when(mappingContext.read(any())).thenReturn(Optional.of(LOCATOR));
        when(locatorContext.getLocator(eq(LOCATOR.getName()), any())).thenReturn(new Ipv6Prefix("a::/64"));
    }

    @Test
    public void getAllIdsTest() throws ReadFailedException {
        SrLocalsidsDetails srLocalsidsDetails = new SrLocalsidsDetails();
        srLocalsidsDetails.behavior = 1;
        Srv6Sid sid = new Srv6Sid();
        sid.addr = AddressTranslator.INSTANCE.ipAddressToArray(new IpAddress(SID_ADR));
        srLocalsidsDetails.addr = sid;
        replyDump.srLocalsidsDetails.add(srLocalsidsDetails);

        SidCustomizer customizer = new SidCustomizer(api, READ_REGISTRY, locatorContext);
        List<SidKey> allIds = customizer.getAllIds(SID_A_101, readCtx);

        Assert.assertNotNull(allIds);
        Assert.assertFalse(allIds.isEmpty());
        Assert.assertTrue(allIds.contains(SID_A_101.firstKeyOf(Sid.class)));
    }

    @Test
    public void readCurrentAttributesTest() throws ReadFailedException {
        SrLocalsidsDetails srLocalsidsDetails = new SrLocalsidsDetails();
        srLocalsidsDetails.behavior = 1;
        Srv6Sid sid = new Srv6Sid();
        sid.addr = AddressTranslator.INSTANCE.ipAddressToArray(new IpAddress(SID_ADR));
        srLocalsidsDetails.addr = sid;
        replyDump.srLocalsidsDetails.add(srLocalsidsDetails);

        SidCustomizer customizer = new SidCustomizer(api, READ_REGISTRY, locatorContext);
        SidBuilder builder = new SidBuilder();
        customizer.readCurrentAttributes(SID_A_101, builder, readCtx);
        Assert.assertEquals(SID_A_101.firstKeyOf(Sid.class), builder.key());
        Assert.assertNotNull(builder.getEnd());
        Assert.assertNotNull(customizer.getBuilder(SID_A_101));

        LocalSidsBuilder parentBuilder = new LocalSidsBuilder();
        customizer.merge(parentBuilder, Collections.singletonList(builder.build()));
        Assert.assertNotNull(parentBuilder.getSid());
        Assert.assertFalse(parentBuilder.getSid().isEmpty());
        Assert.assertTrue(parentBuilder.getSid().contains(builder.build()));
    }
}