/*
 * Copyright 2018-present Open Networking Foundation
 *
 * 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 org.onosproject.openstacktelemetry.impl;

import com.google.common.collect.ImmutableSet;
import com.google.common.testing.EqualsTester;
import org.junit.Before;
import org.junit.Test;
import org.onlab.packet.IpAddress;
import org.onlab.packet.IpPrefix;
import org.onlab.packet.MacAddress;
import org.onlab.packet.TpPort;
import org.onlab.packet.VlanId;
import org.onosproject.net.DeviceId;
import org.onosproject.openstacktelemetry.api.FlowInfo;
import org.onosproject.openstacktelemetry.api.InfluxRecord;
import org.onosproject.openstacktelemetry.api.StatsInfo;

import java.util.Set;

import static org.hamcrest.MatcherAssert.assertThat;
import static org.hamcrest.Matchers.is;
import static org.onlab.junit.ImmutableClassChecker.assertThatClassIsImmutable;

/**
 * Unit tests for DefaultInfluxRecord class.
 */
public final class DefaultInfluxRecordTest {

    private static final String MEASUREMENT_1 = "sonaflow-1";
    private static final String MEASUREMENT_2 = "sonaflow-2";

    private static final String IP_ADDRESS_1 = "10.10.10.1";
    private static final String IP_ADDRESS_2 = "20.20.20.1";

    private static final String MAC_ADDRESS_1 = "AA:BB:CC:DD:EE:FF";
    private static final String MAC_ADDRESS_2 = "FF:EE:DD:CC:BB:AA";

    private static final int IP_PREFIX_LENGTH_1 = 10;
    private static final int IP_PREFIX_LENGTH_2 = 20;

    private static final int PORT_1 = 1000;
    private static final int PORT_2 = 2000;

    private static final int STATIC_INTEGER_1 = 1;
    private static final int STATIC_INTEGER_2 = 2;

    private static final String STATIC_STRING_1 = "1";
    private static final String STATIC_STRING_2 = "2";

    private InfluxRecord record1;
    private InfluxRecord sameAsRecord1;
    private InfluxRecord record2;

    private Set<FlowInfo> flowInfos1;
    private Set<FlowInfo> flowInfos2;

    /**
     * Initial setup for this unit test.
     */
    @Before
    public void setUp() {

        FlowInfo.Builder builder1 = new DefaultFlowInfo.DefaultBuilder();
        FlowInfo.Builder builder2 = new DefaultFlowInfo.DefaultBuilder();

        StatsInfo statsInfo = new DefaultStatsInfo.DefaultBuilder().build();

        FlowInfo info1 = builder1
                .withFlowType((byte) STATIC_INTEGER_1)
                .withInputInterfaceId(STATIC_INTEGER_1)
                .withOutputInterfaceId(STATIC_INTEGER_1)
                .withDeviceId(DeviceId.deviceId(STATIC_STRING_1))
                .withSrcIp(IpPrefix.valueOf(
                        IpAddress.valueOf(IP_ADDRESS_1), IP_PREFIX_LENGTH_1))
                .withDstIp(IpPrefix.valueOf(
                        IpAddress.valueOf(IP_ADDRESS_1), IP_PREFIX_LENGTH_1))
                .withSrcPort(TpPort.tpPort(PORT_1))
                .withDstPort(TpPort.tpPort(PORT_1))
                .withProtocol((byte) STATIC_INTEGER_1)
                .withVlanId(VlanId.vlanId(STATIC_STRING_1))
                .withSrcMac(MacAddress.valueOf(MAC_ADDRESS_1))
                .withDstMac(MacAddress.valueOf(MAC_ADDRESS_1))
                .withStatsInfo(statsInfo)
                .build();

        FlowInfo info2 = builder2
                .withFlowType((byte) STATIC_INTEGER_2)
                .withInputInterfaceId(STATIC_INTEGER_2)
                .withOutputInterfaceId(STATIC_INTEGER_2)
                .withDeviceId(DeviceId.deviceId(STATIC_STRING_2))
                .withSrcIp(IpPrefix.valueOf(
                        IpAddress.valueOf(IP_ADDRESS_2), IP_PREFIX_LENGTH_2))
                .withDstIp(IpPrefix.valueOf(
                        IpAddress.valueOf(IP_ADDRESS_2), IP_PREFIX_LENGTH_2))
                .withSrcPort(TpPort.tpPort(PORT_2))
                .withDstPort(TpPort.tpPort(PORT_2))
                .withProtocol((byte) STATIC_INTEGER_2)
                .withVlanId(VlanId.vlanId(STATIC_STRING_2))
                .withSrcMac(MacAddress.valueOf(MAC_ADDRESS_2))
                .withDstMac(MacAddress.valueOf(MAC_ADDRESS_2))
                .withStatsInfo(statsInfo)
                .build();
        flowInfos1 = ImmutableSet.of(info1);
        flowInfos2 = ImmutableSet.of(info2);

        record1 = new DefaultInfluxRecord(MEASUREMENT_1, flowInfos1);
        sameAsRecord1 = new DefaultInfluxRecord(MEASUREMENT_1, flowInfos1);
        record2 = new DefaultInfluxRecord(MEASUREMENT_2, flowInfos2);
    }

    /**
     * Tests class immutability.
     */
    @Test
    public void testImmutability() {
        assertThatClassIsImmutable(DefaultInfluxRecord.class);
    }

    /**
     * Tests object equality.
     */
    @Test
    public void testEquality() {
        new EqualsTester()
                .addEqualityGroup(record1, sameAsRecord1)
                .addEqualityGroup(record2).testEquals();
    }

    /**
     * Tests object construction.
     */
    @Test
    public void testConstruction() {
        InfluxRecord record = record1;

        assertThat(record.measurement(), is(MEASUREMENT_1));
        assertThat(record.flowInfos(), is(flowInfos1));
    }
}