/*-
 * ============LICENSE_START=======================================================
 * ONAP - SO
 * ================================================================================
 * Copyright (C) 2017 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.so.apihandler.filters;

import java.io.IOException;
import java.net.URI;

import javax.ws.rs.container.ContainerRequestContext;
import javax.ws.rs.container.ContainerRequestFilter;
import javax.ws.rs.container.PreMatching;
import javax.ws.rs.core.UriInfo;

import org.onap.so.apihandlerinfra.Constants;


@PreMatching
public class RequestUriFilter implements ContainerRequestFilter {

	private String requestURI;
	@Override
	public void filter(ContainerRequestContext context) throws IOException {
		UriInfo uriInfo = context.getUriInfo();
		URI baseURI = uriInfo.getBaseUri();
		requestURI = uriInfo.getPath();

		if(requestURI.contains("onap/so/infra/serviceInstances")){
			requestURI = requestURI.replaceFirst("serviceInstances", "serviceInstantiation");
	        if(!requestURI.contains(Constants.SERVICE_INSTANCE_PATH)){
	        	//Adds /serviceInstances after the version provided in the URI
	        	requestURI = new StringBuilder(requestURI).insert(requestURI.indexOf(Constants.SERVICE_INSTANTIATION_PATH) + 24, Constants.SERVICE_INSTANCE_PATH).toString();
	        }
	        requestURI = baseURI + requestURI;
	        URI uri = URI.create(requestURI);
	        context.setRequestUri(uri);
		}
	}
	public String getRequestUri(){
		return requestURI;
	}
}