/*
 * 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.cxf;

import java.io.IOException;
import java.io.InputStream;
import java.io.OutputStream;
import java.net.URL;
import java.net.URLConnection;

import org.w3c.dom.Document;
import org.w3c.dom.Element;
import org.w3c.dom.Text;

import org.apache.camel.CamelContext;
import org.apache.camel.Exchange;
import org.apache.camel.ExchangePattern;
import org.apache.camel.ExchangePropertyKey;
import org.apache.camel.Processor;
import org.apache.camel.builder.RouteBuilder;
import org.apache.camel.component.cxf.common.message.CxfConstants;
import org.apache.camel.impl.DefaultCamelContext;
import org.apache.camel.test.junit5.CamelTestSupport;
import org.apache.camel.util.IOHelper;
import org.apache.cxf.Bus;
import org.apache.cxf.BusFactory;
import org.apache.cxf.binding.soap.SoapFault;
import org.apache.cxf.frontend.ClientFactoryBean;
import org.apache.cxf.frontend.ClientProxyFactoryBean;
import org.apache.cxf.interceptor.Fault;
import org.junit.jupiter.api.AfterEach;
import org.junit.jupiter.api.BeforeEach;
import org.junit.jupiter.api.Test;
import org.junit.jupiter.api.TestInstance;

import static org.junit.jupiter.api.Assertions.assertEquals;
import static org.junit.jupiter.api.Assertions.assertTrue;
import static org.junit.jupiter.api.Assertions.fail;

@TestInstance(TestInstance.Lifecycle.PER_CLASS)
public class CxfCustomizedExceptionTest extends CamelTestSupport {

    protected static final String SERVICE_CLASS = "serviceClass=org.apache.camel.component.cxf.HelloService";
    private static final String EXCEPTION_MESSAGE = "This is an exception test message";
    private static final String DETAIL_TEXT = "This is a detail text node";
    private static final SoapFault SOAP_FAULT;

    static {
        // START SNIPPET: FaultDefine
        SOAP_FAULT = new SoapFault(EXCEPTION_MESSAGE, Fault.FAULT_CODE_CLIENT);
        Element detail = SOAP_FAULT.getOrCreateDetail();
        Document doc = detail.getOwnerDocument();
        Text tn = doc.createTextNode(DETAIL_TEXT);
        detail.appendChild(tn);
        // END SNIPPET: FaultDefine
    }

    protected String routerAddress = "http://localhost:" + CXFTestSupport.getPort1()
                                     + "/" + getClass().getSimpleName() + "/router";
    protected String routerEndpointURI = "cxf://" + routerAddress + "?" + SERVICE_CLASS;
    protected String serviceURI = "cxf://" + routerAddress + "?" + SERVICE_CLASS;

    private Bus bus;

    @Override
    @BeforeEach
    public void setUp() throws Exception {
        bus = BusFactory.getDefaultBus();
        super.setUp();

    }

    @Override
    @AfterEach
    public void tearDown() throws Exception {
        //TODO need to shutdown the server
        super.tearDown();
    }

    @Override
    protected RouteBuilder createRouteBuilder() {
        return new RouteBuilder() {
            public void configure() {
                // START SNIPPET: onException
                from("direct:start")
                        .onException(SoapFault.class)
                        .maximumRedeliveries(0)
                        .handled(true)
                        .process(new Processor() {
                            public void process(Exchange exchange) throws Exception {
                                SoapFault fault = exchange.getProperty(ExchangePropertyKey.EXCEPTION_CAUGHT, SoapFault.class);
                                exchange.getMessage().setBody(fault);
                            }

                        })
                        .end()
                        .to(serviceURI);
                // END SNIPPET: onException
                // START SNIPPET: ThrowFault
                from(routerEndpointURI).process(new Processor() {
                    @Override
                    public void process(Exchange exchange) throws Exception {
                        exchange.getMessage().setBody(SOAP_FAULT);
                    }
                });
                // END SNIPPET: ThrowFault
            }
        };
    }

    @Override
    protected CamelContext createCamelContext() throws Exception {
        return new DefaultCamelContext();
    }

    @Test
    public void testInvokingServiceFromCamel() throws Exception {
        Object result = template.sendBodyAndHeader("direct:start", ExchangePattern.InOut, "hello world",
                CxfConstants.OPERATION_NAME, "echo");
        assertTrue(result instanceof SoapFault, "Exception is not instance of SoapFault");
        assertEquals(DETAIL_TEXT, ((SoapFault) result).getDetail().getTextContent(), "Expect to get right detail message");
        assertEquals("{http://schemas.xmlsoap.org/soap/envelope/}Client", ((SoapFault) result).getFaultCode().toString(),
                "Expect to get right fault-code");
    }

    @Test
    public void testInvokingServiceFromCXFClient() throws Exception {
        ClientProxyFactoryBean proxyFactory = new ClientProxyFactoryBean();
        ClientFactoryBean clientBean = proxyFactory.getClientFactoryBean();
        clientBean.setAddress(routerAddress);
        clientBean.setServiceClass(HelloService.class);
        clientBean.setBus(bus);

        HelloService client = (HelloService) proxyFactory.create();

        try {
            client.echo("hello world");
            fail("Expect to get an exception here");
        } catch (Exception e) {
            assertEquals(EXCEPTION_MESSAGE, e.getMessage(), "Expect to get right exception message");
            assertTrue(e instanceof SoapFault, "Exception is not instance of SoapFault");
            assertEquals(DETAIL_TEXT, ((SoapFault) e).getDetail().getTextContent(), "Expect to get right detail message");
            //In CXF 2.1.2 , the fault code is per spec , the below fault-code is for SOAP 1.1
            assertEquals("{http://schemas.xmlsoap.org/soap/envelope/}Client", ((SoapFault) e).getFaultCode().toString(),
                    "Expect to get right fault-code");
        }

    }

    @Test
    public void testInvokingServiceFromHTTPURL() throws Exception {
        URL url = new URL(routerAddress);
        URLConnection urlConnection = url.openConnection();
        urlConnection.setDoInput(true);
        urlConnection.setDoOutput(true);
        urlConnection.setUseCaches(false);
        urlConnection.setRequestProperty("Content-Type", "application/xml");

        // Send POST data
        OutputStream out = urlConnection.getOutputStream();
        // copy the message out
        InputStream is = this.getClass().getResourceAsStream("SimpleSoapRequest.xml");
        IOHelper.copy(is, out);
        out.flush();
        is.close();
        // check the response code        
        try {
            urlConnection.getInputStream();
            fail("We except an IOException here");
        } catch (IOException exception) {
            assertTrue(exception.getMessage().contains("500"));
        }

    }

}
