package chatserver;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import com.borland.jbcl.layout.*;
import java.net.*;//需要增加的包
import java.io.*;
import java.util.Vector;
import java.util.StringTokenizer;
import java.lang.Thread;

/**
 * <p>Title: </p>
 * <p>Description: </p>
 * <p>Copyright: Copyright (c) 2003</p>
 * <p>Company: </p>
 * @author not attributable
 * @version 1.0
 */

public class Frame1 extends JFrame {
  JPanel contentPane;
  JPanel jPanel1 = new JPanel();
  JPanel jPanel2 = new JPanel();
  XYLayout xYLayout1 = new XYLayout();
  BorderLayout borderLayout1 = new BorderLayout();
  BorderLayout borderLayout2 = new BorderLayout();
  JPanel jPanel3 = new JPanel();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  PaneLayout paneLayout1 = new PaneLayout();
  JPanel jPanel4 = new JPanel();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel5 = new JLabel();
  JLabel jLabel6 = new JLabel();
  PaneLayout paneLayout2 = new PaneLayout();
  JScrollPane jScrollPane1 = new JScrollPane();
  JScrollPane jScrollPane2 = new JScrollPane();
  JTextArea jTextArea2 = new JTextArea();
  JPanel jPanel5 = new JPanel();
  JTextField jTextField1 = new JTextField();
  PaneLayout paneLayout3 = new PaneLayout();
  JButton send = new JButton();
  JButton sysexit = new JButton();
  JTextField jTextField2 = new JTextField();
  java.awt.List list1 = new java.awt.List();
  JButton link = new JButton();//用來列出目前連接的客戶數

//定義相關變量
 static ServerSocket serverSocket=null;//建立服務器的socket
  Socket socket=null;  //用來存儲一個連接套接字
  BufferedReader cin=null;//用來實現接受從客戶端發來的數據流
  PrintWriter cout=null;//用來實現向客戶端發送信息的流
  static Vector clients=new Vector(20);   //用vector向量數組存儲連接客戶變量
  static int active_connects=0;//記錄目前連接的客戶數



  //Construct the frame
  public Frame1() {
    enableEvents(AWTEvent.WINDOW_EVENT_MASK);
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //Component initialization
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(xYLayout1);
    this.setLocale(java.util.Locale.getDefault());
    this.setSize(new Dimension(407, 379));
    this.setTitle("網絡聊天服務器");
    jPanel1.setLayout(borderLayout1);
    jPanel2.setLayout(borderLayout2);
    jLabel1.setBorder(BorderFactory.createEtchedBorder());
    jLabel1.setText("用戶名");
    jLabel2.setBorder(BorderFactory.createEtchedBorder());
    jLabel2.setText("IP地址");
    jLabel3.setBorder(BorderFactory.createEtchedBorder());
    jLabel3.setToolTipText("");
    jLabel3.setText("連接情況");
    jPanel3.setLayout(paneLayout1);
    jLabel4.setBorder(BorderFactory.createEtchedBorder());
    jLabel4.setText("信息類型");
    jLabel5.setBorder(BorderFactory.createEtchedBorder());
    jLabel5.setText("信息來源");
    jLabel6.setBorder(BorderFactory.createEtchedBorder());
    jLabel6.setText("信息內容");
    jPanel4.setLayout(paneLayout2);
    jTextField1.setEditable(false);
    jTextField1.setText("");
    jPanel5.setLayout(paneLayout3);
    send.setText("發送");
    send.addActionListener(new Frame1_send_actionAdapter(this));
    sysexit.setText("退出");
    sysexit.addActionListener(new Frame1_sysexit_actionAdapter(this));
    jTextArea2.setText("");
    link.setText("連接");
    link.addActionListener(new Frame1_link_actionAdapter(this));
    contentPane.add(jPanel1,    new XYConstraints(-2, 0, 402, 152));
    jPanel1.add(jPanel3, BorderLayout.NORTH);
    jPanel1.add(jScrollPane1, BorderLayout.CENTER);
    jScrollPane1.getViewport().add(list1, null);
    contentPane.add(jPanel2,     new XYConstraints(-1, 160, 401, 140));
    jPanel2.add(jPanel4,  BorderLayout.NORTH);
    jPanel4.add(jLabel4,           new PaneConstraints("jLabel4", "jLabel4", PaneConstraints.ROOT, 0.5f));
    jPanel4.add(jLabel5,           new PaneConstraints("jLabel5", "jLabel4", PaneConstraints.RIGHT, 0.7431421f));
    jPanel4.add(jLabel6,           new PaneConstraints("jLabel6", "jLabel5", PaneConstraints.RIGHT, 0.36577183f));
    jPanel2.add(jScrollPane2, BorderLayout.CENTER);
    jPanel2.add(jPanel5, BorderLayout.SOUTH);
    contentPane.add(jTextField2, new XYConstraints(1, 295, 306, 31));
    contentPane.add(jTextField1,  new XYConstraints(2, 329, 242, -1));
    contentPane.add(send,  new XYConstraints(328, 301, 60, 22));
    contentPane.add(sysexit,   new XYConstraints(329, 329, 60, 22));
    contentPane.add(link, new XYConstraints(261, 330, 56, 22));
    jScrollPane2.getViewport().add(jTextArea2, null);
    jPanel3.add(jLabel1,        new PaneConstraints("jLabel1", "jLabel1", PaneConstraints.ROOT, 0.5f));
    jPanel3.add(jLabel2,        new PaneConstraints("jLabel2", "jLabel1", PaneConstraints.RIGHT, 0.8557214f));
    jPanel3.add(jLabel3,        new PaneConstraints("jLabel3", "jLabel2", PaneConstraints.RIGHT, 0.5826087f));
  }
  //File | Exit action performed
  public void jMenuItemClear_actionPerformed(ActionEvent e) {
    System.exit(0);
  }
  //Help | About action performed
  //Overridden so we can exit when window is closed
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      jMenuItemClear_actionPerformed(null);
    sendClients(new StringBuffer("QUIT:"+"SERVER"));
   closeAll();
   System.exit(0);

    }
  }

//添加的方法！！！！
  public static void notifyRoom(){//監視聊天窗口的連接變化,不
    //斷刷新clients數組并刷新用戶列表信息
   StringBuffer people=new StringBuffer("PEOPLE");
   //增加PEOPLE表示是客戶列表信息
   for(int i=0;i<clients.size();i++)
   {
     Client c=(Client)clients.elementAt(i);
     people.append(":"+c.name);
   }
   sendClients(people);
  }

public static boolean  checkName(Client newClient)
  {
    for(int i=0;i<clients.size();i++)
    {
      Client c=(Client)clients.elementAt(i);
      if((c!=newClient)&&c.equals(newClient.name))
        return false;
    }
    return true;
  }

  public synchronized void disconnect(Client c)//缺少static
  {
    try{
     jTextArea2.append("系統消息：             "
                       +c.name+"        斷開連接\n");
     active_connects--;  //連接數減1
     c.send(new StringBuffer("QUIT"+":"+c.name));
                      //向客戶發送斷開信息
     clients.removeElement(c);
     jTextField1.setText("目前已經有"+clients.size()+"用戶連接");
     c.socket.close();//斷開連接
   }
   catch(IOException e)
   {
     jTextArea2.append("系統消息："+"Error "+e);
   }
  }

  public  static synchronized void sendClients(StringBuffer msg)
  {//發送信息到所有用戶
   for(int i=0;i<clients.size();i++){
   Client c=(Client)clients.elementAt(i);
   c.send(msg);
   }
  }

  public synchronized void sendtoClient(StringBuffer msg,String name)
       //將信息發送到特定的單個用戶
     {
       for(int i=0;i<clients.size();i++)
    {
      Client c=(Client)clients.elementAt(i);
      if(c.name.equalsIgnoreCase(name))
      {
       c.send(msg);
       break;
      }
      }
     }


  public void closeAll()//關閉所有游的連接信息
  {
    while(clients.size()>0)
    //需要在整個數組中將每一個連接遍歷，然后刪除信息
    {
      Client c=(Client)clients.firstElement();
      try{
        c.socket.close();
      }
      catch(IOException e){
        jTextArea2.append("系統消息："+"        聊天服務器"+ "   Error  "+e);
      }
      finally{
        clients.removeElement(c);
        //從clients數組中刪除客戶相關的socket信息
      }
    }
  }
class Client extends Thread{
      String name;      //用來存儲客戶的連接姓名
      String ip;         //用來存儲客戶的連接IP