/* ServerLauncher.java
 Copyright (C) 2011,2012 Red Hat, Inc.

 This file is part of IcedTea.

 IcedTea is free software; you can redistribute it and/or
 modify it under the terms of the GNU General Public License as published by
 the Free Software Foundation, version 2.

 IcedTea is distributed in the hope that it will be useful,
 but WITHOUT ANY WARRANTY; without even the implied warranty of
 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 General Public License for more details.

 You should have received a copy of the GNU General Public License
 along with IcedTea; see the file COPYING.  If not, write to
 the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
 02110-1301 USA.

 Linking this library statically or dynamically with other modules is
 making a combined work based on this library.  Thus, the terms and
 conditions of the GNU General Public License cover the whole
 combination.

 As a special exception, the copyright holders of this library give you
 permission to link this library with independent modules to produce an
 executable, regardless of the license terms of these independent
 modules, and to copy and distribute the resulting executable under
 terms of your choice, provided that you also meet, for each linked
 independent module, the terms and conditions of the license of that
 module.  An independent module is a module which is not derived from
 or based on this library.  If you modify this library, you may extend
 this exception to your version of the library, but you are not
 obligated to do so.  If you do not wish to do so, delete this
 exception statement from your version.
 */
package net.sourceforge.jnlp;

import java.io.File;
import java.net.MalformedURLException;
import java.net.ServerSocket;
import java.net.URL;
import java.util.Map;

/**
 * wrapper around tiny http server to separate lunch configurations and servers.
 * to allow terminations and stuff around.
 */
public class ServerLauncher implements Runnable {

    /**
     * default url name part. This can be changed in runtime, but will affect
     * all following tasks upon those server
     */
    private String serverName = ServerAccess.DEFAULT_LOCALHOST_NAME;
    private boolean running;
    private final Integer port;
    private final File dir;
    private ServerSocket serverSocket;
    private boolean supportingHeadRequest = true;

    public void setSupportingHeadRequest(boolean supportsHead) {
        this.supportingHeadRequest = supportsHead;
    }

    public boolean isSupportingHeadRequest() {
        return supportingHeadRequest;
    }

    
    
    public String getServerName() {
        return serverName;
    }

    public void setServerName(String serverName) {
        this.serverName = serverName;
    }

    public ServerLauncher(Integer port, File dir) {
        this.port = port;
        this.dir = dir;
        System.err.println("port: " + port);
        System.err.println("dir: " + dir);
    }

    public boolean isRunning() {
        return running;
    }

    public Integer getPort() {
        return port;
    }

    public File getDir() {
        return dir;
    }

    public ServerLauncher(File dir) {
        this(8181, dir);
    }

    public ServerLauncher(Integer port) {
        this(port, new File(System.getProperty("user.dir")));
    }

    public ServerLauncher() {
        this(8181, new File(System.getProperty("user.dir")));
    }

    /**
     * When redirect is set, the requests to this server will just redirect to
     * the underlying ServerLauncher
     */
    private ServerLauncher redirect = null;
    /**
     * one of: 301, 302,303, 307, 308,
     */
    private int redirectCode = 302;

    public void setRedirect(ServerLauncher redirect) {
        this.redirect = redirect;

    }

    public void setRedirectCode(int redirectPort) {
        this.redirectCode = redirectPort;
    }

    //resoource -> request -> number of requests on of this rsource on this server
    // eg   simpletest1.jnlp -> GET -> 3
    private Map<String, Map<String, Integer>> requestsCounter;

    public void setRequestsCounter(Map<String, Map<String, Integer>> requestsCounter) {
        this.requestsCounter = requestsCounter;
    }

    public void run() {
        running = true;
        try {
            serverSocket = new ServerSocket(port);
            while (running) {
                TinyHttpdImpl server = new TinyHttpdImpl(serverSocket.accept(), dir, false);
                server.setRedirect(redirect);
                server.setRedirectCode(redirectCode);
                server.setRequestsCounter(requestsCounter);
                server.setSupportingHeadRequest(isSupportingHeadRequest());
                server.start();
            }
        } catch (Exception e) {
            ServerAccess.logException(e);
        } finally {
            running = false;
        }
    }

    public URL getUrl(String resource) throws MalformedURLException {
        if (resource == null) {
            resource = "";
        }
        if (resource.trim().length() > 0 && !resource.startsWith("/")) {
            resource = "/" + resource;
        }
        return new URL("http", getServerName(), getPort(), resource);
    }

    public URL getUrl() throws MalformedURLException {
        return getUrl("");
    }

    public void stop() {
        this.running = false;
        if (serverSocket != null) {
            try {
                serverSocket.close();
            } catch (Exception ex) {
                ServerAccess.logException(ex);
            }
        }
    }
}