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/*
 * Copyright 2017-2018 original authors
 *
 * 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.micronaut.discovery.cloud.gcp;

import io.micronaut.context.env.ComputePlatform;
import io.micronaut.discovery.cloud.ComputeInstanceMetadata;
import io.micronaut.discovery.cloud.NetworkInterface;

import java.util.Collections;
import java.util.List;
import java.util.Map;

/**
 * Represents {@link ComputeInstanceMetadata} for Google Cloud Platform.
 *
 * @author rvanderwerf
 * @author Graeme Rocher
 * @since 1.0
 */
public class GoogleComputeInstanceMetadata implements ComputeInstanceMetadata {

    //network interfaces to get ip addresses
    List interfaces = Collections.emptyList();

    // anything non-standard goes in here
    Map metadata;

    String name;
    String availabilityZone;
    String localHostname;
    String publicHostname;
    String description;
    String machineType;
    String instanceId;
    String region;
    final ComputePlatform computePlatform = ComputePlatform.GOOGLE_COMPUTE;
    String account;
    String imageId;

    // should we keep these broken out or require people to look in the interfaces?
    String publicIpV4;
    String publicIpV6;
    String privateIpV4;
    String privateIpV6;

    boolean cached = false;

    // quick way to lookup tags
    private Map tags = Collections.emptyMap();

    @Override
    public String getImageId() {
        return imageId;
    }

    @Override
    public String getAccount() {
        return account;
    }

    @Override
    public Map getMetadata() {
        return metadata;
    }

    @Override
    public List getInterfaces() {
        return interfaces;
    }

    @Override
    public ComputePlatform getComputePlatform() {
        return computePlatform;
    }

    @Override
    public Map getTags() {
        return tags;
    }

    @Override
    public String getName() {
        return name;
    }

    @Override
    public String getInstanceId() {
        return instanceId;
    }

    @Override
    public String getMachineType() {
        return machineType;
    }

    @Override
    public String getAvailabilityZone() {
        return availabilityZone;
    }

    @Override
    public String getRegion() {
        if (availabilityZone != null) {
            return availabilityZone.substring(0, availabilityZone.length() - 2);
        }
        return region;
    }

    @Override
    public String getLocalHostname() {
        return localHostname;
    }

    @Override
    public String getPrivateHostname() {
        return localHostname;
    }

    @Override
    public String getPublicIpV4() {
        return publicIpV4;
    }

    @Override
    public String getPublicIpV6() {
        return publicIpV6;
    }

    @Override
    public String getPrivateIpV4() {
        return privateIpV4;
    }

    @Override
    public String getPrivateIpV6() {
        return privateIpV6;
    }

    @Override
    public String getDescription() {
        return description;
    }

    @Override
    public String getPublicHostname() {
        return publicHostname;
    }

    @Override
    public boolean isCached() {
        return cached;
    }
}