package com.leanwo.management;

import java.awt.AWTEvent;
import java.awt.AWTException;
import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.SystemTray;
import java.awt.Toolkit;
import java.awt.TrayIcon;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.io.IOException;
import java.net.URL;
import java.util.List;
import java.util.Timer;
import java.util.TimerTask;

import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.JToolBar;

import org.apache.log4j.Logger;

import com.leanwo.management.model.ApplicationSetting;
import com.leanwo.management.model.ApplicationSettingCache;
import com.leanwo.management.service.AutoUpdateService;
import com.leanwo.management.service.ProcessService;
import com.leanwo.management.service.ProgramRunResult;
import com.leanwo.management.util.SpringUtil;
import com.leanwo.management.widget.SelectEventListener;
import com.leanwo.management.widget.SelectObject;

public class MainFrame extends JFrame{
	private static Logger logger = Logger.getLogger(MainFrame.class);
	
	private JButton startMenu = null;
	private JButton stopMenu = null;
	private JButton upgradeMenu = null;
	private JButton editConfigMenu = null;
	private JButton startAllMenu = null;
	private JButton stopAllMenu = null;
	
	private ServerFrame serverFrame = null;
	private ServerLogFrame serverLogFrame =  null;

	private TrayIcon trayIcon;				// 托盘图标
	private SystemTray systemTray;	// 系统托盘

	// 得到显示器屏幕的宽高
	private int width = Toolkit.getDefaultToolkit().getScreenSize().width;
	private int height = Toolkit.getDefaultToolkit().getScreenSize().height;

	// 定义窗体的宽高
	private int windowsWidth = 800;
	private int windowsHeight = 400;

	private ApplicationSettingCache applicationSettingCache = null;
	private List<ApplicationSetting> settings = null;
	
	/** 流程服务 */
	private ProcessService processService = null;

	/** 升级服务 */
	private AutoUpdateService autoUpdateService = null;

	/** 自动启动 */
	private boolean isAutoStart;
	
	public MainFrame(boolean isAutoStart) {
		this.isAutoStart = isAutoStart;
		initData();
		initView();
		initMenuItem();
	}
	
	private void initData() {
		applicationSettingCache = (ApplicationSettingCache) SpringUtil.getSingleBean(ApplicationSettingCache.class);
		settings = applicationSettingCache.getSettings();
		processService = (ProcessService) SpringUtil.getSingleBean(ProcessService.class);
		autoUpdateService = (AutoUpdateService) SpringUtil.getSingleBean(AutoUpdateService.class);
		Thread.currentThread().setName("界面主线程");
	}
	
	private void initView() {
		this.setLayout(new BorderLayout(5,5));

        JToolBar toolbar = new JToolBar();
        toolbar.setFloatable(false);
        toolbar.setBorderPainted(false);
        
        add(toolbar, BorderLayout.NORTH);
                
        startMenu = new JButton("启动");
        toolbar.add(startMenu);

        stopMenu = new JButton("停止");
        toolbar.add(stopMenu);
        
        upgradeMenu = new JButton("更新");
        toolbar.add(upgradeMenu);

        editConfigMenu = new JButton("设置");
        toolbar.add(editConfigMenu);
        
        startAllMenu = new JButton("全部启动");
        toolbar.add(startAllMenu);
        
        stopAllMenu = new JButton("全部关闭");
        toolbar.add(stopAllMenu);
        
		serverFrame = new ServerFrame(settings);
		serverFrame.setPreferredSize(new Dimension(300, 0));
        add(serverFrame, BorderLayout.WEST);
        serverFrame.addStateChangeListener(new SelectEventListener() {
			@Override
			public void onSelect(SelectObject event) {
				int index = event.getIndex();
				refreshMenuStatus(index);
				serverLogFrame.setSelectedIndex(index);
			}
		});
        
		serverLogFrame = new ServerLogFrame(settings);
        add(serverLogFrame, BorderLayout.CENTER);
        
		this.setTitle("Prodog程序管理器");
		// this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE); // 设定按关闭时的操作，这里是关闭窗口，如果不设定，就什么也不会发生
		
		// 设置图标
		URL path = MainFrame.class.getResource("prodog_16.png");
		Image image;
		try {
			image = ImageIO.read(path);
			this.setIconImage(image);
		} catch (IOException e) {
			logger.error("读取图片异常。", e);
		}   
		
        // 激活窗口事件
        this.enableEvents(AWTEvent.WINDOW_EVENT_MASK);
        
		// 设置窗体位置和大小
		this.setBounds((width - windowsWidth) / 2, (height - windowsHeight) / 2, windowsWidth, windowsHeight);
        
        if(isAutoStart) {
        	processService.autoStart(settings, serverLogFrame);
        }
	}
	
	/**
	 * 初始化菜单事件
	 */
	private void initMenuItem() {
		startMenu.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				int selectedRow = serverFrame.getSelectedRow();
				if(selectedRow >= 0 && selectedRow < settings.size()) {
					ApplicationSetting setting = settings.get(selectedRow);
					if(setting.getProgramRunResult() != null) {
						JOptionPane.showMessageDialog(null, "程序已经运行", "程序已经运行", JOptionPane.ERROR_MESSAGE);
						return;
					}
					
					try {
						ProgramRunResult programRunResult = processService.startProgram(setting);
						if(programRunResult == null || programRunResult.getProcess() == null) {
							JOptionPane.showMessageDialog(null, "未配置启动文件或启动命令", "配置异常", JOptionPane.ERROR_MESSAGE);
						}else {
							setting.setProgramRunResult(programRunResult);
							serverLogFrame.updateProgramRunResult(selectedRow, programRunResult);
						}
					} catch (IOException e1) {
						JOptionPane.showMessageDialog(null, e1.getMessage(), "程序启动异常", JOptionPane.ERROR_MESSAGE);
						logger.error("启动异常", e1);
					}
				}else {
					JOptionPane.showMessageDialog(null, "请先选择服务器", "请先选择服务器", JOptionPane.ERROR_MESSAGE);
				}
			}
		});
		
		stopMenu.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				int selectedRow = serverFrame.getSelectedRow();
				if(selectedRow >= 0 && selectedRow < settings.size()) {
					ApplicationSetting setting = settings.get(selectedRow);
					try {
						ProgramRunResult programRunResult = setting.getProgramRunResult();
						if(programRunResult != null && programRunResult.getProcess() != null) {
							programRunResult.getProcess().destroyForcibly();
						}
						programRunResult = processService.stopProgram(setting);
						if(programRunResult == null || programRunResult.getProcess() == null) {
							JOptionPane.showMessageDialog(null, setting.getName() +"未配置停止文件", "程序关闭异常", JOptionPane.ERROR_MESSAGE);
						}else {
							setting.setProgramRunResult(null);
						}				
					} catch (IOException e1) {
						JOptionPane.showMessageDialog(null, e1.getMessage(), setting.getName() +"程序关闭失败", JOptionPane.ERROR_MESSAGE);
						logger.error(setting.getName() +"程序关闭失败", e1);
					}
				}else {
					JOptionPane.showMessageDialog(null, "请先选择服务器", "请先选择服务器", JOptionPane.ERROR_MESSAGE);
				}
			}
		});
		
		upgradeMenu.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				int selectedRow = serverFrame.getSelectedRow();
				if(selectedRow >= 0 && selectedRow < settings.size()) {
					ApplicationSetting setting = settings.get(selectedRow);
					if(autoUpdateService.canUpdate(setting)) {
						Object[] options = {"确定","取消"};
						int response = JOptionPane.showOptionDialog(null, "如果您确定要升级，请点击\'确定\'按钮，否则点击\'取消\'按钮", "确定是否升级", JOptionPane.YES_OPTION, JOptionPane.QUESTION_MESSAGE, null, options, options[0]);
						if(response==0)
						{
							autoUpdateService.autoUpdate(setting);
						}
					}else {
						JOptionPane.showMessageDialog(null, "在服务器上未找到可更新的程序", "没有可更新的程序", JOptionPane.ERROR_MESSAGE);
					}
				}else {
					JOptionPane.showMessageDialog(null, "请先选择服务器", "请先选择服务器", JOptionPane.ERROR_MESSAGE);
				}
			}
		});
		
		editConfigMenu.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				int selectedRow = serverFrame.getSelectedRow();
				if(selectedRow >= 0 && selectedRow < settings.size()) {
					ApplicationSetting setting = settings.get(selectedRow);
					SettingEditFrame serverSettingJFrame = new SettingEditFrame(setting);
					serverSettingJFrame.setVisible(true);
				}else {
					JOptionPane.showMessageDialog(null, "请先选择服务器", "请先选择服务器", JOptionPane.ERROR_MESSAGE);
				}
			}
		});
		
		// 全部启动
		startAllMenu.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				boolean canAllStart = true;
				if (settings != null && settings.size() > 0) {
					for(int i = 0; i < settings.size(); i ++) {
						final ApplicationSetting setting = settings.get(i);
						if(setting.getProgramRunResult() != null) {
							canAllStart = false;
							break;
						}
					}
				}
				
				if(canAllStart) {
					processService.autoStart(settings, serverLogFrame);
				}else {
					JOptionPane.showMessageDialog(null, "已经有程序启动了，不能全部启动，请手工启动。", "执行失败", JOptionPane.ERROR_MESSAGE);
				}
			}
		});
		
		// 全部关闭
		stopAllMenu.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				if (settings != null && settings.size() > 0) {
					for(int i = 0; i < settings.size(); i ++) {
						final ApplicationSetting setting = settings.get(i);
						try {
							ProgramRunResult programRunResult = setting.getProgramRunResult();
							if(programRunResult != null && programRunResult.getProcess() != null) {
								programRunResult.getProcess().destroyForcibly();
							}
							programRunResult = processService.stopProgram(setting);
							if(programRunResult == null || programRunResult.getProcess() == null) {
								logger.error(setting.getName() + "程序关闭异常，未配置停止文件。");
							}else {
								setting.setProgramRunResult(null);
							}				
						} catch (IOException e1) {
							logger.error(setting.getName() +"程序关闭失败", e1);
						}
					}
				}
			}
		});
	}
	
	/**
	 * 刷新菜单的状态
	 */
	private void refreshMenuStatus(int selectedRow) {
		if(selectedRow >= 0 && selectedRow < settings.size()) {
			ApplicationSetting setting = settings.get(selectedRow);
			if(setting.isOnline()) {
				startMenu.setEnabled(false);
				stopMenu.setEnabled(true);
				upgradeMenu.setEnabled(false);
				editConfigMenu.setEnabled(true);
			}else {
				startMenu.setEnabled(true);
				stopMenu.setEnabled(true);
				upgradeMenu.setEnabled(true);
				editConfigMenu.setEnabled(true);
			}
		}
	}
	

	//重写这个方法  
    @Override  
    protected void processWindowEvent(WindowEvent e) {  
        if (e.getID() == WindowEvent.WINDOW_CLOSING) {
        	//setVisible(false);
        	// 关闭其他子线程
        	for(int i = 0; i < settings.size(); i ++) {
        		ApplicationSetting setting = settings.get(i);
        		ProgramRunResult programRunResult = setting.getProgramRunResult();
    			if(programRunResult != null && programRunResult.getProcess() != null) {
    				programRunResult.getProcess().destroyForcibly();
    			}
    			
				try {
					programRunResult = processService.stopProgram(setting);
					if(programRunResult == null || programRunResult.getProcess() == null) {
    					logger.error("关闭程序失败" + setting.getName() +"未配置停止文件。");
    					JOptionPane.showMessageDialog(null, "未配置停止文件", "配置异常", JOptionPane.ERROR_MESSAGE);
    				}else {
    					setting.setProgramRunResult(null);
    				}
				} catch (IOException e1) {
					logger.error("关闭程序失败" + setting.getName(), e1);
    				setting.setProgramRunResult(null);
				}
        	}
        	
        	Timer timer = new Timer("定时器：延时关闭");
        	this.setEnabled(false);
        	timer.schedule(new TimerTask() {
				@Override
				public void run() {
					timer.cancel();
		        	System.exit(0);
				}
        	}, 2000, 2000);
        	return;
        }
        super.processWindowEvent(e); //该语句会执行窗口事件的默认动作(如：隐藏)  
    }  
    
	/**
	 * 初始化系统托盘
	 */
	private void initSystemTray() {
		// 判断当前平台是否支持系统托盘
		if(SystemTray.isSupported()) {
			// 获得系统托盘的实例
			systemTray = SystemTray.getSystemTray();
			try {
				URL path = MainFrame.class.getResource("prodog_16.png");
				Image image = ImageIO.read(path);   
				trayIcon = new TrayIcon(image);
				trayIcon.displayMessage("通知：", "程序最小化到系统托盘", TrayIcon.MessageType.INFO);
				// 设置托盘的图标
				systemTray.add(trayIcon);

				trayIcon.addMouseListener(new MouseAdapter() {
					public void mouseClicked(MouseEvent e) {
						// 双击托盘窗口再现
						if (e.getClickCount() == 2) {
							boolean visible = isVisible();
							// setExtendedState(Frame.NORMAL);
							setVisible(!visible);
						}							
					}
				});

				this.addWindowListener(new WindowAdapter() {
					public void windowIconified(WindowEvent e) {
						// 窗口最小化时
						setVisible(false);
					}
				});
				
			} catch (IOException e1) {
				logger.error("初始化托盘失败", e1);
			} catch (AWTException e2) {
				logger.error("初始化托盘失败", e2);
			}
		}
	}
}