/*
 * ============LICENSE_START==========================================
 * ONAP Portal
 * ===================================================================
 * Copyright (C) 2019 AT&T Intellectual Property. All rights reserved.
 * ===================================================================
 * Modifications Copyright (c) 2019 Samsung
 * ===================================================================
 *
 * Unless otherwise specified, all software contained herein is licensed
 * under the Apache License, Version 2.0 (the "License");
 * you may not use this software 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.
 *
 * Unless otherwise specified, all documentation contained herein is licensed
 * under the Creative Commons License, Attribution 4.0 Intl. (the "License");
 * you may not use this documentation except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *             https://creativecommons.org/licenses/by/4.0/
 *
 * Unless required by applicable law or agreed to in writing, documentation
 * 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.portal.domain.dto.ecomp;

import java.nio.charset.Charset;
import lombok.AllArgsConstructor;
import lombok.Getter;
import lombok.NoArgsConstructor;
import lombok.Setter;
import org.apache.commons.codec.binary.Base64;
import org.onap.portal.utils.EcompPortalUtils;
import org.onap.portalsdk.core.onboarding.util.CipherUtil;
import org.springframework.http.HttpHeaders;

@Getter
@Setter
public class WidgetServiceHeaders {

	private WidgetServiceHeaders(){}
	
	private static HttpHeaders widgetHeaders;

	public static HttpHeaders getInstance() throws Exception{
		if(null == widgetHeaders){
		   return new HttpHeaders(){{
			   	
				    String username = EcompPortalUtils
						.getPropertyOrDefault("microservices.widget.username", "widget_user");
				    String password = CipherUtil.decryptPKC(EcompPortalUtils.getPropertyOrDefault("microservices.widget.password", "widget_password"));
			        String auth = username + ":" + password;
			        byte[] encodedAuth = Base64.encodeBase64( 
			           auth.getBytes(Charset.forName("US-ASCII")) );
			        String authHeader = "Basic " + new String( encodedAuth );
			        set( "Authorization", authHeader );
			      }
			   };
		}
		else 
			return widgetHeaders;
		
	}
}