/*******************************************************************************
 * ============LICENSE_START=======================================================
 * pcims
 *  ================================================================================
 *  Copyright (C) 2018 Wipro Limited.
 *  ==============================================================================
 *   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 com.wipro.www.sonhms.restclient;

import com.fasterxml.jackson.core.JsonProcessingException;
import com.fasterxml.jackson.databind.ObjectMapper;
import com.wipro.www.sonhms.Configuration;
import com.wipro.www.sonhms.utils.HttpRequester;

import java.util.UUID;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class PolicyRestClient {
    private static Logger log = LoggerFactory.getLogger(PolicyRestClient.class);

    private PolicyRestClient() {

    }

    /**
     * Fetches configuration from policy.
     */
    public static String fetchConfigFromPolicy() {
        log.debug("inside fetconfig from policy");

        Configuration configuration = Configuration.getInstance();
        String response = "";
        String configName = configuration.getConfigName();
        String policyName = configuration.getPolicyName();

        try {
            PolicyRequestBody policyRequestBody = new PolicyRequestBody();
            policyRequestBody.setConfigName(configName);
            policyRequestBody.setPolicyName(policyName);
            UUID requestUuid = UUID.randomUUID();
            String requestId = requestUuid.toString();
            policyRequestBody.setRequestId(requestId);
            ObjectMapper mapper = new ObjectMapper();
            String requestBody;
            requestBody = mapper.writeValueAsString(policyRequestBody);

            log.debug("policyRequestBody{}", requestBody);
            String requestUrl = configuration.getPolicyService() + "/pdp/api/getConfig";
            response = HttpRequester.sendPostToPolicy(requestUrl, requestBody);
            log.debug("policy response{}", response);

            return response;
        } catch (JsonProcessingException e) {
            log.debug("exception", e);
        }
        return response;

    }

}