/**
 * Copyright 2016-2017 ZTE, Inc. and others.
 *
 * 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.onap.msb.sdclient.wrapper.consul.cache;

import java.math.BigInteger;
import java.util.List;

import org.onap.msb.sdclient.wrapper.consul.HealthClient;
import org.onap.msb.sdclient.wrapper.consul.async.ConsulResponseCallback;
import org.onap.msb.sdclient.wrapper.consul.model.health.ServiceHealth;

import com.google.common.base.Function;

public class HealthCache extends ConsulCache<String, ServiceHealth> {

    private final String serviceName;

    private HealthCache(Function<ServiceHealth, String> keyConversion,
                    ConsulCache.CallbackConsumer<ServiceHealth> callbackConsumer, String serviceName) {
        super(keyConversion, callbackConsumer);
        this.serviceName = serviceName;
        // TODO Auto-generated constructor stub
    }


    public static HealthCache newCache(final HealthClient healthClient, final String serviceName,
                    final int watchSeconds) {
        Function<ServiceHealth, String> keyExtractor = input -> {
            // return input.getKey().substring(rootPath.length() + 1);
            return input.getService().getId();
        };

        final CallbackConsumer<ServiceHealth> callbackConsumer = (index, callback) -> healthClient.getHealthyServiceInstances(serviceName, watchParams(index, watchSeconds), callback);


        return new HealthCache(keyExtractor, callbackConsumer, serviceName);


    }

    public String getServiceName() {
        return this.serviceName;
    }


}