/*-
 * ============LICENSE_START=======================================================
 * ONAP CLAMP
 * ================================================================================
 * Copyright (C) 2017-2018 AT&T Intellectual Property. All rights
 *                             reserved.
 * ================================================================================
 * 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.
 * ============LICENSE_END============================================
 * ===================================================================
 * 
 */

package org.onap.clamp.clds.client;

import com.att.eelf.configuration.EELFLogger;
import com.att.eelf.configuration.EELFManager;

import java.util.UUID;

import org.apache.camel.Exchange;
import org.apache.camel.Handler;
import org.onap.clamp.clds.client.req.policy.PolicyClient;
import org.onap.clamp.clds.config.ClampProperties;
import org.onap.clamp.clds.model.properties.Holmes;
import org.onap.clamp.clds.model.properties.ModelProperties;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Component;

/**
 * Send Holmes info to policy api.
 */
@Component
public class HolmesPolicyDelegate {

    protected static final EELFLogger logger = EELFManager.getInstance().getLogger(HolmesPolicyDelegate.class);
    protected static final EELFLogger metricsLogger = EELFManager.getInstance().getMetricsLogger();
    @Autowired
    private PolicyClient policyClient;
    @Autowired
    private ClampProperties refProp;

    /**
     * Perform activity. Send Holmes info to policy api.
     *
     * @param camelExchange
     *            The Camel Exchange object containing the properties
     */
    @Handler
    public void execute(Exchange camelExchange) {
        String holmesPolicyRequestUuid = UUID.randomUUID().toString();
        camelExchange.setProperty("holmesPolicyRequestUuid", holmesPolicyRequestUuid);
        ModelProperties prop = ModelProperties.create(camelExchange);
        Holmes holmes = prop.getType(Holmes.class);
        if (holmes.isFound()) {
            String responseMessage = policyClient.sendBasePolicyInOther(formatHolmesConfigBody(prop, holmes),
                    holmes.getConfigPolicyName(), prop, holmesPolicyRequestUuid);
            if (responseMessage != null) {
                camelExchange.setProperty("holmesPolicyResponseMessage", responseMessage.getBytes());
            }
        }
    }

    /**
     * This method is used to create the Payload that must be sent to Holmes.
     * 
     * @param prop
     *            The ModelProperties containing all the closed loop props
     * @param holmes
     *            The holmes object extracted from the closed loop
     * @return The String that must be sent to policy for holmes
     */
    public static String formatHolmesConfigBody(ModelProperties prop, Holmes holmes) {
        return prop.getControlName() + "$$$" + holmes.getCorrelationLogic();
    }
}