package freech.core;

import java.io.*;
import java.net.ServerSocket;
import java.util.Hashtable;

import javax.xml.parsers.*;

import org.w3c.dom.*;
import org.xml.sax.SAXException;

import freech.room.Room;

public class Server {
	public static Server svr = null;
	private String BASE_PATH = null;
    private  Hashtable rtop;//端口到房間的印射
    
	private  int[] ports = null;// 端口

	private ServerSocket[] sers = null;

	public Server() {

		rtop = new Hashtable();
	}
	
	public static void main(String args[]) {
		svr = new Server();
		svr.readConfig();
		svr.startThread();
	}

	private void startThread() {
		sers = startRoomListen(ports);
	}

	private void readConfig() {
		DocumentBuilderFactory docf = DocumentBuilderFactory.newInstance() ;
		try {
			DocumentBuilder domb = docf.newDocumentBuilder() ;
			if(BASE_PATH ==null){
				BASE_PATH = "./";
			}
			
			StringBuffer sb = new StringBuffer(BASE_PATH).append( "/baseconfig.xml");
			System.out.println(""+sb.toString() );
			InputStream in = new FileInputStream(sb.toString() );
			Document doc = domb.parse(in);
			Element root =doc.getDocumentElement(); //<rooms> </rooms>
			
			NodeList rooms =doc.getElementsByTagName( "room");//比較好的方法
			System.out.println(rooms.getLength()  );
			ports = new int[rooms.getLength() ];
			
			for(int i=0;i<rooms.getLength() ;i++){
				Element room = (Element) rooms.item( i);//<room> </room>
				Room room1 = new Room();
				
				String roomname = room.getElementsByTagName( "name").item( 0).getFirstChild() .getNodeValue(); 
				room1.setName( roomname);
				System.out.println(roomname);
					
				String port = room.getElementsByTagName( "port").item( 0).getFirstChild() .getNodeValue(); 
				room1.setPort( port);
				ports[i]=Integer.parseInt( port);
				System.out.println(port);
			    rtop.put( port,room1);
			}
			
		} catch (ParserConfigurationException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (SAXException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
	}

	// 每個房間對應一個監聽端口，端口號從配置文件讀取
	private ServerSocket[] startRoomListen(int[] ports) {
		ServerSocket[] ss = new ServerSocket[ports.length];

		try {
			for (int i = 0; i < ports.length; i++) {
				ss[i] = new ServerSocket(ports[i]);
				new RoomListen(ss[i], i, ports[i]).start();
			}
		} catch (IOException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}

		return ss;
	}

	public Hashtable getRtop() {
		return rtop;
	}

	public String getBASE_PATH() {
		return BASE_PATH;
	}

}