package com.vci.client.workflow.task;

import java.awt.AWTEvent;
import java.awt.Dimension;
import java.awt.Frame;
import java.awt.Rectangle;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.awt.event.WindowEvent;
import java.util.ArrayList;
import java.util.List;

import javax.swing.DefaultListModel;
import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JLabel;
import javax.swing.JList;
import javax.swing.JOptionPane;
import javax.swing.JScrollPane;
import javax.swing.JTextArea;
import javax.swing.ListModel;
import javax.swing.ListSelectionModel;
import javax.swing.border.EmptyBorder;
import javax.swing.border.TitledBorder;

import com.vci.client.LogonApplication;
import com.vci.client.common.objects.UserObject;
import com.vci.client.framework.delegate.RightManagementClientDelegate;
import com.vci.client.ui.exception.VCIException;
import com.vci.client.workflow.commom.Checkableitem;
import com.vci.client.workflow.delegate.ProcessCustomClientDelegate;
import com.vci.client.workflow.editor.TaskDescCObject;
import com.vci.corba.common.VCIError;

public class FlowUserDialog extends JDialog {
	private static final long serialVersionUID = 1L;
	public JButton buttonOk = new JButton();
    public JButton buttonCancel = new JButton();
    public boolean flag = false;
    String taskName = "";
    String outcome = "";
    String jbpmDeploymentId = "";
    public String[] userName ;
    
    private JList userList =  new JList();
    private JList nextTaskList = new JList();
    
    Checkableitem[] items = {};
    JScrollPane scrollPanel = new JScrollPane();
	JScrollPane selectScroPanel = new JScrollPane();
	JScrollPane scroll = new JScrollPane();
	private JTextArea descArea;
	private JLabel descLabel;
	private String desc = null;
	String resTask = "";
	private boolean isSelectFlag = false;
	private long pltreatment = 0;
    public boolean isSelectFlag() {
		return isSelectFlag;
	}
	public void setSelectFlag(boolean isSelectFlag) {
		this.isSelectFlag = isSelectFlag;
	}
	public FlowUserDialog(){
    	
    }
    /**
     * 
     * @param frame
     */
	public FlowUserDialog(Frame frame,String jbpmDeploymentId,String taskName,String outcome){
		super(frame, true);
		this.taskName = taskName;
		this.outcome = outcome;
		this.jbpmDeploymentId = jbpmDeploymentId;
		init();
		//激活窗口事件   
        this.enableEvents(AWTEvent.WINDOW_EVENT_MASK);   

        if(isSelectFlag){
        	ok_todo();
		}
	}
	 //重写这个方法   
    @Override  
    protected void processWindowEvent(WindowEvent e) {   
        if (e.getID() == WindowEvent.WINDOW_CLOSING)   
            return; //直接返回，阻止默认动作，阻止窗口关闭   
        super.processWindowEvent(e); //该语句会执行窗口事件的默认动作(如：隐藏)   
    }   
    String[] nextTaskName;
	public void init(){
		int x = (int) (this.getParent().getLocationOnScreen().getX()) + 235;
		int y = (int) (this.getParent().getLocationOnScreen().getY()) + 125;
		this.setLocation(x, y);

		this.setSize(new Dimension(520, 400));
		this.setResizable(false);
		
		

		descLabel = new JLabel("请输入任务描述：");
		descLabel.setBounds(40, 190, 120, 25);

		scroll.setBounds(40, 220, 420, 80);
		descArea = new JTextArea();
		descArea.setLineWrap(true);
		scroll.getViewport().add(descArea);
		
		buttonOk.setText("确定");
		buttonOk.setBounds(new Rectangle(
				170, 320, 60, 25));
		buttonCancel.setText("取消");
		buttonCancel.setBounds(new Rectangle(
				270, 320, 60, 25));
		try {
			nextTaskName = getNextTaskNames(new ProcessCustomClientDelegate(
					LogonApplication.getUserEntityObject()));
			if (nextTaskName.length > 1) {
				fillNextTaskCombox();
				
				userList = new JList(items);
//				userList.setCellRenderer(new Checklistrenderer());
				userList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
				userList.setBorder(new EmptyBorder(0, 4, 0, 0));
				
				scrollPanel.setBounds(40, 10, 160, 150);
				scrollPanel.setBorder(new TitledBorder("下一步任务"));
				scrollPanel.getViewport().add(nextTaskList);

				selectScroPanel.setBounds(300, 10, 160, 150);
				selectScroPanel.setBorder(new TitledBorder("指定下一步处理人"));
				selectScroPanel.getViewport().add(userList);
				this.add(scrollPanel);
				this.add(selectScroPanel);
				
			}else{
				fillUserCombox();
				
				userList = new JList(items);
//				userList.setCellRenderer(new Checklistrenderer());
				userList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
				userList.setBorder(new EmptyBorder(0, 4, 0, 0));
				
				JScrollPane scrollPanel = new JScrollPane();
				scrollPanel.setBounds(40, 10, 400, 150);
				scrollPanel.setBorder(new TitledBorder("下一步处理人"));
				scrollPanel.getViewport().add(userList);
				this.add(scrollPanel);
				
				//20120806 如果用户列表只有一个用户或者为所有人处理时，用户列表不选择
				int size = userList.getModel().getSize();
				if(size==1||pltreatment == 1){
					userList.setEnabled(false);
					for(int i = 0;i<size;i++){
						Checkableitem item = (Checkableitem) userList.getModel()
						.getElementAt(i);
						item.setSelected(!item.isSelected());
						Rectangle rect = userList.getCellBounds(i, i);
						userList.repaint(rect);
					}
		            isSelectFlag = true;
				}else{
					userList.setEnabled(true);
					isSelectFlag = false;
				}
			}
		}  catch (VCIException e) {
			// TODO Auto-generated catch block
			e.printStackTrace();
		}
		
		
		this.setLayout(null);
		this.add(scrollPanel);
		this.add(buttonOk);
		this.add(buttonCancel);
//		this.add(descLabel);
//		this.add(scroll);
		userList.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent e) {
				if(!isSelectFlag){
					int index = userList.locationToIndex(e.getPoint());
					Checkableitem item = (Checkableitem) userList.getModel()
					.getElementAt(index);
					item.setSelected(!item.isSelected());
					Rectangle rect = userList.getCellBounds(index, index);
					userList.repaint(rect);
				}
			}
		 });

		nextTaskList.addMouseListener(new MouseAdapter() {
			public void mouseClicked(MouseEvent mouseevent) {
				add_actionPerformed();
				
				//20120806 如果用户列表只有一个用户或者为所有人处理时，用户列表不选择
				int size = userList.getModel().getSize();
				if(size==1||pltreatment==1){
					userList.setEnabled(false);
					for(int i = 0;i<size;i++){
						Checkableitem item = (Checkableitem) userList.getModel()
						.getElementAt(i);
						item.setSelected(!item.isSelected());
						Rectangle rect = userList.getCellBounds(i, i);
						userList.repaint(rect);
					}
	                isSelectFlag = true;
				}else{
					userList.setEnabled(true);
					isSelectFlag = false;
				}
			}
		});
		buttonOk.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				ok_todo();
			}

		});
		
		buttonCancel.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent arg0) {
				flag = true;
				dispose();
			}
		});

	}
	
	private void fillUserCombox(){
		ProcessCustomClientDelegate processCustomClientDelegate = new ProcessCustomClientDelegate(LogonApplication.getUserEntityObject());
		try {
			String[] userName = processCustomClientDelegate.getNextCandidates(jbpmDeploymentId, taskName, outcome);
			
			//获取下一步任务名称
			String[] nextTaskNames = getNextTaskNames(new ProcessCustomClientDelegate(
					LogonApplication.getUserEntityObject()));
			for(int i=0;i<nextTaskNames.length;i++){
				//获取任务的候选人处理方式
				TaskDescCObject[] taskDescList = new ProcessCustomClientDelegate().getTaskDescList(jbpmDeploymentId, nextTaskNames[i]);
				for(int j=0;j<taskDescList.length;j++){
					pltreatment = taskDescList[j].getPltreatment();
				}
			}
			
			RightManagementClientDelegate rightDel = new RightManagementClientDelegate(LogonApplication.getUserEntityObject());
			DefaultListModel model = new DefaultListModel();
			items = new Checkableitem[userName.length];
			if(userName != null &&userName.length>0&&userName[0].contains("#{process_applicant}")){
				UserObject userObj = rightDel.fetchUserInfoByName(LogonApplication.getUserEntityObject().getUserName());
				 if(!"".equals(userObj.getId())){
//					model.addElement(userObj);
					items[0] = new Checkableitem((Object) userObj);
					model.add(model.getSize(), items[0]);
				 }
			}else{
				for(int i =0;i<userName.length;i++){
					UserObject userObj = rightDel.fetchUserInfoByName(userName[i]);
					//updated by wangxl  2011-12-16 修改用户被删除时 不加载
					if(!"".equals(userObj.getId())){
//					  model.addElement(userObj);
					  items[i] = new Checkableitem((Object) userObj);
					  model.add(model.getSize(), items[i]);
					}
				}
				userList.setModel(model);
				
			}
		} catch (VCIException e) {
			e.printStackTrace();
		} 
	}
	private void ok_todo() {
		flag = false;
//			Object[] object = userList.getSelectedValues();
//			userName = new String[object.length];
//			for(int i=0;i<object.length;i++) {
//				UserObject obj = (UserObject)object[i];
//				userName[i] = obj.getUserName();
//			}
		
		
		ListModel model = userList.getModel();
		int n = model.getSize();

		//如果是任意人处理，则只选择一个人
		if(pltreatment==0&&n>1){
			userName = new String[1];
			Checkableitem checkableitem = (Checkableitem) userList.getSelectedValue();
			Object obj = checkableitem.getStr();
			if(obj instanceof UserObject){
				UserObject userObj = (UserObject) obj;
				userName[0] = userObj.getUserName();
			}
		}else{
			List userList = new ArrayList();
			for (int i = 0; i < n; i++) {
				Checkableitem item = (Checkableitem) model.getElementAt(i);
				if(item.isSelected()){
					userList.add(item);
				}
			}
			
			userName = new String[userList.size()];
			for (int i = 0; i < userList.size(); i++) {
				Checkableitem checkableitem = (Checkableitem) userList.get(i);
				Object obj = checkableitem.getStr();
				if(obj instanceof UserObject){
					UserObject userObj = (UserObject) obj;
					userName[i] = userObj.getUserName();
				}
			}
		}
		if (userName.length <= 0) {
			JOptionPane.showMessageDialog(LogonApplication.frame, "没有选择下一步的处理人！");
			return;
		}
		resTask = (String) nextTaskList.getSelectedValue();
		desc = descArea.getText().trim();
//			if (desc.getBytes().length > 64) {
//				JOptionPane.showMessageDialog(LogonApplication.frame,
//						"输入的内容太多，不能超过64个字符或32个汉字");
//				return;
//			} else if (desc == null || desc.equals("")) {
//				JOptionPane.showMessageDialog(LogonApplication.frame,
//						"请输入流程描述信息");
//				return;
//			}
		dispose();
	}
	private void fillNextTaskCombox() {
		ProcessCustomClientDelegate processCustomClientDelegate = new ProcessCustomClientDelegate(
				LogonApplication.getUserEntityObject());
		try {
			String[] nextTaskName = getNextTaskNames(processCustomClientDelegate);
			DefaultListModel model = new DefaultListModel();

			for (int i = 0; i < nextTaskName.length; i++) {
				model.addElement(nextTaskName[i]);
			}

			nextTaskList.setModel(model);
			nextTaskList.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		} catch (VCIException e) {
			JOptionPane.showMessageDialog(LogonApplication.frame, "该资源数据模板没有配置相应流程，请确认！");
		}
	}

	private String[] getNextTaskNames(
			ProcessCustomClientDelegate processCustomClientDelegate)
			throws VCIException{
		// 通过模板找到流程
		String[] nextTaskName = processCustomClientDelegate.getNextTaskNames(
				jbpmDeploymentId,  taskName, outcome);
		return nextTaskName;
	}
	private void add_actionPerformed() {
		String objs = (String) nextTaskList.getSelectedValue();
		
		ProcessCustomClientDelegate processCustomClientDelegate = new ProcessCustomClientDelegate(
				LogonApplication.getUserEntityObject());
		RightManagementClientDelegate rightDel = new RightManagementClientDelegate(
				LogonApplication.getUserEntityObject());
		DefaultListModel model = new DefaultListModel();
		try {
				String[] userName = null;
				try {
					userName = processCustomClientDelegate
							.getCurCandidates(jbpmDeploymentId, objs, outcome, null);
				} catch (VCIException e) {
					e.printStackTrace();
				}
				
				//获取任务的候选人处理方式
				TaskDescCObject[] taskDescList = new ProcessCustomClientDelegate().getTaskDescList(jbpmDeploymentId, objs);
				for(int i=0;i<taskDescList.length;i++){
					pltreatment = taskDescList[i].getPltreatment();
				}
				
				items = new Checkableitem[userName.length==0?1:userName.length];
				if(userName != null &&userName.length>0&&userName[0].contains("#{process_applicant}")){
					UserObject userObj = rightDel
							.fetchUserInfoByName(LogonApplication
									.getUserEntityObject().getUserName());
					if (!"".equals(userObj.getId())) {
						items[0] = new Checkableitem((Object) userObj);
						model.add(model.getSize(), items[0]);
					}
				} else {
					for (int i = 0; i < userName.length; i++) {
						UserObject userObj = rightDel
								.fetchUserInfoByName(userName[i]);
						if (!"".equals(userObj.getId())) {
							items[i] = new Checkableitem((Object) userObj);
							model.add(model.getSize(), items[i]);
						}
					}
				}
			userList.setModel(model);
		} catch (VCIException e) {
			e.printStackTrace();
		}
	}
	public String[] getUserName(){
		return userName;
	}
	public String getDesc() {
		return desc;
	}
}