/*
 * Licensed to the Apache Software Foundation (ASF) under one or more
 * contributor license agreements.  See the NOTICE file distributed with
 * this work for additional information regarding copyright ownership.
 * The ASF licenses this file to You 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.
 */
package org.apache.camel.component.restlet;

import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Locale;
import java.util.Map;

import org.apache.camel.CamelExecutionException;
import org.apache.camel.Exchange;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.http.HttpResponse;
import org.apache.http.client.methods.HttpPost;
import org.junit.Test;
import org.restlet.data.CacheDirective;
import org.restlet.engine.header.HeaderConstants;

public class RestletResponseTest extends RestletTestSupport {

    @Override
    protected RouteBuilder createRouteBuilder() {

        return new RouteBuilder() {
            @Override
            public void configure() throws Exception {
                from("restlet:http://localhost:" + portNum + "/users/{username}?restletMethod=POST").process(new Processor() {
                    public void process(Exchange exchange) throws Exception {
                        String userName = exchange.getIn().getHeader("username", String.class);                        
                        assertNotNull("userName should not be null", userName);
                        exchange.getOut().setBody("{" + userName + "}");
                        exchange.getOut().setHeader(Exchange.HTTP_RESPONSE_CODE, "417");
                        exchange.getOut().setHeader(Exchange.CONTENT_TYPE, "application/JSON");
                        // set the cache control with String
                        exchange.getOut().setHeader(HeaderConstants.HEADER_CACHE_CONTROL, "max-age=20");
                    }        
                });
                
                from("restlet:http://localhost:" + portNum + "/cached/{username}?restletMethod=POST").process(new Processor() {
                    public void process(Exchange exchange) throws Exception {
                        String userName = exchange.getIn().getHeader("username", String.class);                        
                        assertNotNull("userName should not be null", userName);
                        exchange.getOut().setBody("{" + userName + "}");
                        exchange.getOut().setHeader(Exchange.HTTP_RESPONSE_CODE, "417");
                        exchange.getOut().setHeader(Exchange.CONTENT_TYPE, "application/JSON");
                        // set cache control with cacheDirectives
                        List<CacheDirective> cacheDirectives = new ArrayList<>();
                        cacheDirectives.add(CacheDirective.maxAge(20));
                        exchange.getOut().setHeader(HeaderConstants.HEADER_CACHE_CONTROL, cacheDirectives);
                        
                    }       
                });
            }
        };
    }
    
    private void getCustomResponse(String address) throws Exception {
        HttpResponse response = doExecute(new HttpPost("http://localhost:" + portNum + address));
        assertHttpResponse(response, 417, "application/JSON");
        String s = response.getFirstHeader(HeaderConstants.HEADER_CACHE_CONTROL).toString().toLowerCase(Locale.US);
        assertEquals("Get a wrong http header", "cache-control: max-age=20", s);
    }
    
    @Test
    public void testCustomResponse() throws Exception {
        getCustomResponse("/users/homer");
        getCustomResponse("/cached/homer");
    }
    
    @Test(expected = CamelExecutionException.class)
    public void testRestletProducer() throws Exception {
        Map<String, Object> headers = new HashMap<>();        
        headers.put("username", "homer");
        String response = (String)template.requestBodyAndHeaders("restlet:http://localhost:" + portNum + "/users/{username}?restletMethod=POST", "<request>message</request>", headers);
        assertEquals("The response is wrong ", response, "{homer}");
    }
}