/*
* ============LICENSE_START=======================================================
* ONAP : SDNC-FEATURES
* ================================================================================
* Copyright 2018 TechMahindra
*=================================================================================
* 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.onap.sdnc.vnfbackupservice.scheduler;


import java.util.Arrays;

import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.http.HttpEntity;
import org.springframework.http.HttpHeaders;
import org.springframework.http.HttpMethod;
import org.springframework.http.MediaType;
import org.springframework.http.ResponseEntity;
import org.springframework.stereotype.Service;
import org.springframework.web.client.RestTemplate;


@Service
public class VnfRestClient {

	@Autowired
	private RestTemplate restTemplate;

	public String vnfRestClient(String url, String userName, String password) {
		restTemplate = new RestTemplate();
		HttpHeaders headers = new HttpHeaders();
		HttpEntity<String> entity = new HttpEntity<String>(generateHeaders(headers, userName, password));
		ResponseEntity<String> response = restTemplate.exchange(url, HttpMethod.GET, entity, String.class);
		String result = response.getBody();
		return result;
	}
	
	public HttpHeaders generateHeaders(HttpHeaders headers, String userName, String password) {
		headers.setAccept(Arrays.asList(new MediaType[] { MediaType.APPLICATION_JSON }));
		headers.setContentType(MediaType.APPLICATION_JSON);
		String base64Username = userName + ":" + password;
		byte[] message = base64Username.getBytes();
		headers.set("Authorization", "Basic " + java.util.Base64.getEncoder().encodeToString(message));
		return headers;
	}
}