/*
 * Copyright 2016-present Open Networking Laboratory
 *
 * 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.opencord.cordvtn.api;

import com.google.common.base.MoreObjects;
import org.opencord.cordvtn.api.Dependency.Type;

import java.util.Objects;

import static com.google.common.base.Preconditions.checkNotNull;

/**
 * Representation of a provider network.
 */
public final class ProviderNetwork {

    private final NetworkId id;
    private final Type type;

    private ProviderNetwork(NetworkId id, Type type) {
        this.id = id;
        this.type = type;
    }

    /**
     * Returns network id.
     *
     * @return network id
     */
    public NetworkId id() {
        return id;
    }

    /**
     * Returns the direct access type with this provider network.
     *
     * @return direct access type
     */
    public Type type() {
        return type;
    }

    /**
     * Returns immutable provider network with the supplied network id and type.
     *
     * @param id   network id
     * @param type direct access type
     * @return provider network
     */
    public static ProviderNetwork of(NetworkId id, Type type) {
        checkNotNull(id);
        checkNotNull(type);
        return new ProviderNetwork(id, type);
    }

    @Override
    public boolean equals(Object obj) {
        if (this == obj) {
            return true;
        }

        if (obj instanceof ProviderNetwork) {
            ProviderNetwork that = (ProviderNetwork) obj;
            if (Objects.equals(id, that.id) &&
                    Objects.equals(type, that.type)) {
                return true;
            }
        }
        return false;
    }

    @Override
    public int hashCode() {
        return Objects.hash(id, type);
    }

    @Override
    public String toString() {
        return MoreObjects.toStringHelper(getClass())
                .add("id", id)
                .add("type", type)
                .toString();
    }
}