/*
 * Copyright (c) 2019 PANTHEON.tech.
 *
 * 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.l3.write.ipv4;

import static org.mockito.MockitoAnnotations.initMocks;

import io.fd.hc2vpp.common.translate.util.NamingContext;
import io.fd.hc2vpp.l3.write.ipv4.subinterface.SubInterfaceIpv4AddressValidator;
import io.fd.honeycomb.translate.write.DataValidationFailedException;
import io.fd.honeycomb.translate.write.WriteContext;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mock;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.SubinterfaceAugmentation;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.interfaces._interface.SubInterfaces;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.interfaces._interface.sub.interfaces.SubInterface;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.interfaces._interface.sub.interfaces.SubInterfaceKey;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.Address;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.AddressBuilder;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.address.Subnet;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.address.subnet.Netmask;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.address.subnet.NetmaskBuilder;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.address.subnet.PrefixLength;
import org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.ipv4.address.subnet.PrefixLengthBuilder;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4Address;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.inet.types.rev130715.Ipv4AddressNoZone;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.Interfaces;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.Interface;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.interfaces.rev180220.interfaces.InterfaceKey;
import org.opendaylight.yang.gen.v1.urn.ietf.params.xml.ns.yang.ietf.yang.types.rev130715.DottedQuad;
import org.opendaylight.yangtools.yang.binding.InstanceIdentifier;

public class SubInterfaceIpv4AddressValidatorTest {

    private SubInterfaceIpv4AddressValidator validator;
    private static final String IFC_NAME = "eth0";
    private static final long SUBIF_ID = 1;
    private static final String IP_ADDR = "192.168.2.1";
    private static final InstanceIdentifier<Address> IID =
            InstanceIdentifier.create(Interfaces.class).child(Interface.class, new InterfaceKey(IFC_NAME))
                    .augmentation(SubinterfaceAugmentation.class).child(SubInterfaces.class)
                    .child(SubInterface.class, new SubInterfaceKey(SUBIF_ID)).child(
                    org.opendaylight.yang.gen.v1.http.fd.io.hc2vpp.yang.vpp.vlan.rev180319.sub._interface.ip4.attributes.Ipv4.class)
                    .child(Address.class);

    @Mock
    private WriteContext writeContext;

    @Before
    public void setUp() {
        initMocks(this);
        NamingContext ifcContext = new NamingContext("testInterfaceContext", "testInterfaceContext");
        validator = new SubInterfaceIpv4AddressValidator(ifcContext);
    }

    @Test
    public void testWriteSuccessful()
            throws DataValidationFailedException.CreateValidationFailedException {
        PrefixLength length = new PrefixLengthBuilder().setPrefixLength(new Integer(24).shortValue()).build();
        validator.validateWrite(IID, createAddress(length), writeContext);
    }

    @Test
    public void testDeleteSuccessful()
            throws DataValidationFailedException.DeleteValidationFailedException {
        PrefixLength length = new PrefixLengthBuilder().setPrefixLength(new Integer(24).shortValue()).build();
        validator.validateDelete(IID, createAddress(length), writeContext);
    }

    @Test
    public void testWriteNetmaskSuccessful()
            throws DataValidationFailedException.CreateValidationFailedException {
        Netmask netmask = new NetmaskBuilder().setNetmask(new DottedQuad(IP_ADDR)).build();
        validator.validateWrite(IID, createAddress(netmask), writeContext);
    }

    @Test(expected = NullPointerException.class)
    public void testWriteNetmaskFailed()
            throws DataValidationFailedException.CreateValidationFailedException {
        validator.validateWrite(IID, createAddress(null), writeContext);
    }

    private Address createAddress(Subnet subnet) {
        Ipv4AddressNoZone noZoneIp = new Ipv4AddressNoZone(new Ipv4Address(IP_ADDR));
        return new AddressBuilder().setIp(noZoneIp).setSubnet(subnet).build();
    }
}