package com.vci.client.workflow.task;

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.text.MessageFormat;

import javax.swing.Box;
import javax.swing.JButton;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.ListSelectionModel;
import javax.swing.UIManager;
import javax.swing.table.DefaultTableCellRenderer;
import javax.swing.table.TableColumnModel;

import com.vci.client.LogonApplication;
import com.vci.client.ui.exception.VCIException;
import com.vci.client.ui.image.BundleImage;
import com.vci.client.workflow.commom.ClientHelper;
import com.vci.client.workflow.delegate.ProcessCustomClientDelegate;
import com.vci.client.workflow.editor.user.FowardUserDialog;
import com.vci.corba.common.VCIError;
import com.vci.corba.workflow.data.FlowTaskInfo;
import com.vci.corba.workflow.data.ProcessTaskInfo;

public class CCTaskPanel extends JPanel {

	/**
	 * 
	 */
	private static final long serialVersionUID = 1L;
	private JButton btnNewButton;
	private JPanel todoTasksPanel;
	private JTable toDoTasksTable;
	private TodoTaskTableModel todoTaskTableModel;
	
	//added by ligang 分页功能的实现
	private JButton firstPageButton = null;
	private JButton prePageButton = null;
	private JButton nextPageButton = null;
	private JButton lastPageButton = null;
	int pagesize = getPageSize();//每页记录数
	int pageCount = 0;//总页数
	int rowCount = 0;//总记录数
	int curPage = 1;
	int TABLE_PAGE = 1;//当前页数
	private JLabel laber_pageinfo = new JLabel(getI18nString("pageInfo"));//当前页/总页数

	private static CCTaskPanel ccTaskPanel;
	
	public static CCTaskPanel getInstance() {
		if (ccTaskPanel == null) {
			ccTaskPanel = new CCTaskPanel();
		}
		return ccTaskPanel;
	}

	private CCTaskPanel() {
		initUI();
		initializeData();
		//2012.04.26 ligang 去除任务箱权限校验，所有人都有操作权限
//		checkPermission() ;
	}
	/** 权限检查的模块标识 **/ 
	private String checkPermissionModuleId = "com.vci.rmip.workflow.client.task.ProcessTaskPanel";

	@SuppressWarnings("unchecked")
	private void checkPermission() {
	}
	private void initUI() {
		setLayout(new BorderLayout(0, 0));

		todoTaskTableModel = new TodoTaskTableModel();

		todoTasksPanel = new JPanel();
		add(todoTasksPanel, BorderLayout.CENTER);
		todoTasksPanel.setLayout(new BorderLayout(0, 0));

		JPanel panel_2 = new JPanel();
		todoTasksPanel.add(panel_2, BorderLayout.NORTH);
		panel_2.setLayout(new FlowLayout(FlowLayout.LEFT, 5, 5));

		btnNewButton = new JButton(getI18nString("btnView"));

		btnNewButton.setBorder(UIManager.getBorder("Button.border"));
		panel_2.add(btnNewButton);
		
		JPanel pane3 = new JPanel();
		todoTasksPanel.add(pane3,BorderLayout.SOUTH);
		initPageerButtons(pane3);

		JPanel panel_3 = new JPanel();
		panel_3.setBackground(Color.WHITE);
		todoTasksPanel.add(panel_3, BorderLayout.CENTER);
		panel_3.setLayout(new BorderLayout(0, 0));

		toDoTasksTable = new JTable();
		toDoTasksTable.setAutoResizeMode(JTable.AUTO_RESIZE_NEXT_COLUMN);
		toDoTasksTable.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
		toDoTasksTable.setModel(todoTaskTableModel);
		toDoTasksTable.setRowHeight(25);
		//2012.03.06 ligang 双击事件的添加
		toDoTasksTable.addMouseListener(new MouseAdapter(){
			public void mouseClicked(MouseEvent e) {
				if(e.getClickCount()==2){
					viewFlowInfo();
				}
			}
			
		});

		JScrollPane scrollPane = new JScrollPane(toDoTasksTable);
		scrollPane.setAutoscrolls(true);
		panel_3.add(scrollPane);

		TableColumnModel todoModel = toDoTasksTable.getColumnModel();
		todoModel.getColumn(0).setPreferredWidth(28);
		todoModel.getColumn(0).setMaxWidth(28);
		todoModel.getColumn(2).setPreferredWidth(150);
//		todoModel.getColumn(2).setMaxWidth(200);

		DefaultTableCellRenderer r = new DefaultTableCellRenderer();
		r.setHorizontalAlignment(JLabel.CENTER);
		todoModel.getColumn(0).setCellRenderer(r);

		Dimension size = toDoTasksTable.getTableHeader().getPreferredSize();
		size.height = 22;
		toDoTasksTable.getTableHeader().setPreferredSize(size);

		addListener();
	}

	private void addListener() {
		btnNewButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent event) {
				viewFlowInfo();

			}
		});
	}

	public void initData() {

		FlowTaskInfo[] dataObjs;
		try {
			dataObjs = new ProcessCustomClientDelegate(LogonApplication.getUserEntityObject()).getCCTaskByUserId(LogonApplication.getUserObject().getUserName(),curPage,pagesize);
			todoTaskTableModel.setData(dataObjs);
		} catch (VCIError e) {
			e.printStackTrace();
		}
		updateUI();
	}
	
	private void viewFlowInfo() {
		int selectedRow = toDoTasksTable.getSelectedRow();
		if (selectedRow == -1) {
			JOptionPane.showMessageDialog(todoTasksPanel, getI18nString("message"), getI18nString("title"), JOptionPane.INFORMATION_MESSAGE);
			return;
		}

		FlowTaskInfo flowTask = todoTaskTableModel.getValue(selectedRow);
		if (flowTask == null) {
			return;
		}
		// 查出阶段名称
		ProcessCustomClientDelegate processCustomClientDelegate = new ProcessCustomClientDelegate();

		String jbpmDeploymentId;
		try {
			jbpmDeploymentId = processCustomClientDelegate.getDeploymentIdByExecutionId(flowTask.executionId);
			if ("".equals(jbpmDeploymentId)) {
				JOptionPane.showMessageDialog(todoTasksPanel, "该流程不存在或已经执行完成！", getI18nString("title"), JOptionPane.INFORMATION_MESSAGE);
				initData();
				return;
			}
			ProcessTaskInfo frocessTaskInfo = processCustomClientDelegate.findById(jbpmDeploymentId, flowTask.name);
			CCTaskDialog todoTaskDialog = new CCTaskDialog(flowTask, frocessTaskInfo);
			todoTaskDialog.setVisible(true);
//			//处理代办任务之后，显示剩余任务数量。
//			String currentUser = LocaleDisplay.getI18nString("rmip.framework.current.user", "RMIPFramework",this.getLocale());
//			new VciFrameTimerTask(currentUser).displayTaskCount();
			initializeData();
		} catch (VCIError e) {
			e.printStackTrace();
		}
	}
	
	/**
	 * 任务转发 
	 */
	private void foward(){
		int selectedRow = toDoTasksTable.getSelectedRow();
		if (selectedRow == -1) {
			JOptionPane.showMessageDialog(todoTasksPanel, "请选择要转发的任务！", getI18nString("title"), JOptionPane.INFORMATION_MESSAGE);
			return;
		}

		FlowTaskInfo flowTask = todoTaskTableModel.getValue(selectedRow);
		if (flowTask == null) {
			return;
		}
		
		ProcessCustomClientDelegate processCustomClientDelegate = new ProcessCustomClientDelegate();
		String jbpmDeploymentId;
		try {
			jbpmDeploymentId = processCustomClientDelegate.getDeploymentIdByExecutionId(flowTask.executionId);
			if ("".equals(jbpmDeploymentId)) {
				JOptionPane.showMessageDialog(todoTasksPanel, "该流程不存在或已经执行完成！", getI18nString("title"), JOptionPane.INFORMATION_MESSAGE);
				initData();
				return;
			}
//			ProcessTaskInfo frocessTaskInfo = processCustomClientDelegate.findById(jbpmDeploymentId, flowTask.name);
			FowardUserDialog dialog = new FowardUserDialog(flowTask.executionId);
//			TodoTaskDialog todoTaskDialog = new TodoTaskDialog(flowTask, frocessTaskInfo);
//			todoTaskDialog.setVisible(true);
//			//处理代办任务之后，显示剩余任务数量。
//			String currentUser = LocaleDisplay.getI18nString("rmip.framework.current.user", "RMIPFramework",this.getLocale());
//			new VciFrameTimerTask(currentUser).displayTaskCount();
			initializeData();
		} catch (VCIError e) {
			e.printStackTrace();
		}
		
	}
	public void initializeData() {
		curPage = 1;
		rowCount = getRowCount();
		pageCount = getPageCount();
		initData();
		updateBtnStatus();
		laber_pageinfo.setText(MessageFormat.format(getI18nString("pageInfo"), rowCount, pageCount, curPage));
	}
	
	
	private void initPageerButtons(JPanel pal){
		
		firstPageButton = new JButton(""); 
		pal.add(firstPageButton);
		firstPageButton.setIcon(new BundleImage().createImageIcon("resultset_first.png"));
		
		prePageButton = new JButton(""); 
		pal.add(prePageButton);
		prePageButton.setIcon(new BundleImage().createImageIcon("resultset_previous.png"));
		
		nextPageButton = new JButton("");
		pal.add(nextPageButton);  
		nextPageButton.setIcon(new BundleImage().createImageIcon("resultset_next.png"));
		
		lastPageButton = new JButton("");
		pal.add(lastPageButton);
		lastPageButton.setIcon(new BundleImage().createImageIcon("resultset_last.png"));
		
		firstPageButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				curPage = 1;
				initData();
				updateBtnStatus();
			}
		});
		prePageButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				if(curPage > 1){
					curPage--;
				}
				initData();
				updateBtnStatus();
			}
		});
		nextPageButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				if(curPage < getPageCount()){
					curPage++;
				}
				initData();
				updateBtnStatus();
			}
		});
		lastPageButton.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				curPage = getPageCount();
				initData();
				updateBtnStatus();
			}
		});
		pal.add(Box.createHorizontalStrut(30));
		pal.add(laber_pageinfo);
	}
	
	private int getPageSize() {
		if(this.pagesize == 0){
			String pageSize = "15";
//			try {
//				pageSize = new UserRightClientDelegate().getConfigValue("log.query.pagesize");
//			} catch (VCIError e) {
//				e.printStackTrace();
//			}
			int pageSizeGet = Integer.parseInt(pageSize);
			this.pagesize = pageSizeGet;
		}
		return pagesize;
	}
	
	private int getRowCount(){
		try {
			return new ProcessCustomClientDelegate(LogonApplication.getUserEntityObject()).queryCCTaskCount(LogonApplication.getUserObject().getUserName());
		} catch (VCIException e) {
			e.printStackTrace();
			return 1;
		}
	}
	private int getPageCount(){
		int dataRowCount = getRowCount();
		int pageSize = getPageSize();
		int pageCount = dataRowCount / pageSize;
		if (dataRowCount % pageSize > 0) {
			pageCount++;
		}
		return pageCount;
	}
	private void updateBtnStatus() {
		int rowCount = this.getRowCount();
		int pageSize = getPageSize();
		int pageCount = rowCount / pageSize;
		if (rowCount % pageSize > 0) {
			pageCount++;
		}
		if (pageCount <= 1) {
			firstPageButton.setEnabled(false);
			prePageButton.setEnabled(false);
			lastPageButton.setEnabled(false);
			nextPageButton.setEnabled(false);
		} else {
			if (curPage == 1) {
				firstPageButton.setEnabled(false);
				prePageButton.setEnabled(false);
				lastPageButton.setEnabled(true);
				nextPageButton.setEnabled(true);
			} else if (curPage >= pageCount) {
				firstPageButton.setEnabled(true);
				prePageButton.setEnabled(true);
				lastPageButton.setEnabled(false);
				nextPageButton.setEnabled(false);
			} else {
				firstPageButton.setEnabled(true);
				prePageButton.setEnabled(true);
				lastPageButton.setEnabled(true);
				nextPageButton.setEnabled(true);
			}
		}
		laber_pageinfo.setText(MessageFormat.format(getI18nString("pageInfo"), rowCount, pageCount, curPage));
	}

	private String getI18nString(String spCode) {
		return ClientHelper.getI18nStringForWorkflow(this.getClass().getName() + "." + spCode, this.getLocale());
	}
}