/*
 * #%L
 * synat-portal-webapp Maven Webapp
 * %%
 * Copyright (C) 2010 - 2013 ICM, Warsaw University
 * %%
 * 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.
 * #L%
 */
import java.io.IOException;

import org.eclipse.jetty.server.Connector;
import org.eclipse.jetty.server.Server;
import org.eclipse.jetty.server.ServerConnector;
import org.eclipse.jetty.util.ssl.SslContextFactory;
import org.eclipse.jetty.webapp.WebAppContext;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import org.springframework.context.ApplicationContext;
import org.springframework.context.ConfigurableApplicationContext;
import org.springframework.context.Lifecycle;
import org.springframework.core.io.ClassPathResource;
import org.springframework.core.io.Resource;
import org.springframework.web.context.WebApplicationContext;

import pl.edu.icm.synat.security.SSLCertDisabler;


public class RunPortal {

	public static final int DEFAULT_HTTP_PORT = 8280;
	public static final int DEFAULT_HTTPS_PORT = 8443;
	public static final int DEFAULT_AJP_PORT = 8010;
	public static final String DEFAULT_HTTP_URL = "http://localhost:" + DEFAULT_HTTP_PORT + "/";
	private int httpPort;
	private int httpsPort;
	private int ajpPort;
	private Server server;
	private WebApplicationContext webApplicationContext;
	private final String descriptor = "src/main/webapp/WEB-INF/web.xml";

	private static final Logger logger = LoggerFactory.getLogger(RunPortal.class);

	public static void main(final String[] args) throws IOException {
		final RunPortal starter = new RunPortal();
		starter.defaultValues();
		starter.valuesFromArguments(args);
		starter.printParameters();
		starter.startWebContainer();
	}

	private void defaultValues() {
		this.httpPort = DEFAULT_HTTP_PORT;
		this.httpsPort = DEFAULT_HTTPS_PORT;
		this.ajpPort = DEFAULT_AJP_PORT;
	}

	private static void usage() {
		logger.error("[httpPort [httpsPort]] ");
		logger.error("additional container configuration is stored in containerConfiguration.xml. this can be changed by setting system varibale: containerConfiguration");
		System.exit(-1);
	}

	private void valuesFromArguments(final String[] params) {
		final String[] args = params.clone();
		try {
			if (args.length > 0) {
				this.httpPort = Integer.parseInt(args[0]);
			}

			if (args.length > 1) {
				this.httpsPort = Integer.parseInt(args[1]);
			}
			
			if (args.length > 2) {
				this.ajpPort = Integer.parseInt(args[2]);
			}


		} catch (final Exception e) {
			logger.error("Exception reported", e);
			usage();
		}
	}

	private void printParameters() {
		logger.info("httpPort: " + httpPort);
		logger.info("httpsPort: " + httpsPort);
		logger.info("ajpPort: " + ajpPort);
	}

	public void stopWebContainer() {
		try {
			// server.destroy();
			// server.get
			cleanWebApplicationContext();
			// server.join();
			server.stop();
		} catch (final Exception e) {
			logger.error("Exception reported", e);
		}
	}

	protected void cleanWebApplicationContext() {
		if (webApplicationContext instanceof Lifecycle) {
			Lifecycle lifecycle = (Lifecycle) webApplicationContext;
			if (lifecycle.isRunning()) {
				lifecycle.stop();
			}
		}
		if (webApplicationContext instanceof ConfigurableApplicationContext) {
			ConfigurableApplicationContext configurableApplicationContext = (ConfigurableApplicationContext) webApplicationContext;
			;
			if (configurableApplicationContext.isActive()) {
				configurableApplicationContext.close();
			}
		}
	}

	public void startWebContainer() throws IOException  {
		disableSsl();
		
		server = new Server();
		server.setStopAtShutdown(true);

		ServerConnector connector = new ServerConnector(server);
		connector.setPort(httpPort);

		SslContextFactory sslContextFactory = new SslContextFactory("src/main/resources/keystore");
		sslContextFactory.setKeyStorePassword("password");
		ServerConnector sslConnector = new ServerConnector(server, sslContextFactory);
		sslConnector.setPort(httpsPort);
		
		server.setConnectors(new Connector[] { connector, sslConnector });

		final WebAppContext context = new WebAppContext();
		context.setDescriptor(descriptor);
		context.setContextPath("/portal");
		context.setParentLoaderPriority(true);
		context.setResourceBase("src/main/webapp");
		Resource resource = new ClassPathResource("/override-web.xml");
		context.addOverrideDescriptor(resource.getFile().getAbsolutePath());
		resource = new ClassPathResource("/override-web-custom.xml");
		if(resource.exists()){
			context.addOverrideDescriptor(resource.getFile().getAbsolutePath());
		}
		server.setHandler(context);
		try {
			server.start();
			webApplicationContext = (WebApplicationContext) context.getServletContext().getAttribute(
					WebApplicationContext.ROOT_WEB_APPLICATION_CONTEXT_ATTRIBUTE);
			if (webApplicationContext instanceof ConfigurableApplicationContext) {
				((ConfigurableApplicationContext) webApplicationContext).registerShutdownHook();
			}
		} catch (final Exception e) {
			logger.error("Exception reported", e);
		}
	}

	public ApplicationContext getMainApplicationContext() {
		return webApplicationContext;
	}
	
	void disableSsl() {
		SSLCertDisabler sslCertDisabler = new SSLCertDisabler();
		sslCertDisabler.setTrustAll(true);
		sslCertDisabler.init();
		
		//disable SSL for Apache HTTP Client
		try {
			org.apache.commons.httpclient.protocol.ProtocolSocketFactory socketFactory = new org.apache.commons.httpclient.contrib.ssl.EasySSLProtocolSocketFactory();
			org.apache.commons.httpclient.protocol.Protocol https = new org.apache.commons.httpclient.protocol.Protocol(
					"https", socketFactory, 443);
			org.apache.commons.httpclient.protocol.Protocol.registerProtocol(
					"https", https);
		} catch (Exception e1) {
			e1.printStackTrace();
		}
	}
}