package com.vci.client.workflow.task;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.FlowLayout;
import java.awt.Frame;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.LinkedList;
import java.util.List;

import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.event.TreeExpansionEvent;
import javax.swing.event.TreeExpansionListener;
import javax.swing.tree.TreeNode;
import javax.swing.tree.TreePath;
import javax.swing.tree.TreeSelectionModel;

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.ui.swing.VCIOptionPane;
import com.vci.client.ui.swing.VCISwingUtil;
import com.vci.client.ui.swing.components.VCIJButton;
import com.vci.client.ui.swing.components.VCIJDialog;
import com.vci.client.ui.tree.VCIBaseTree;
import com.vci.client.ui.tree.VCIBaseTreeModel;
import com.vci.client.ui.tree.VCIBaseTreeNode;
import com.vci.client.workflow.commom.ClientHelper;
import com.vci.client.workflow.delegate.ProcessCustomClientDelegate;
import com.vci.client.workflow.template.ProcessCategoryTreeCellRender;
import com.vci.client.workflow.template.object.ProcessCategoryObject;
import com.vci.client.workflow.template.object.ProcessDefinitionObject;
import com.vci.client.workflow.template.object.RMTypeObject;
import com.vci.corba.common.VCIError;

public class TaskAssignedDialog extends VCIJDialog {


	private static final long serialVersionUID = 4257732186259993713L;
	
	private VCIBaseTree leftTree = null;
	private VCIBaseTreeModel treeModel = null;
	private VCIBaseTreeNode rootNode = null;
	
	VCIJButton okBtn = VCISwingUtil.createVCIJButton("", "确定", "确定", "ok.gif");
	VCIJButton cancelBtn = VCISwingUtil.createVCIJButton("", "取消", "取消", "cancel.gif");
//	VCIJLabel lbluser = new VCIJLabel("快速查询：");
//	VCIJTextField jtfuser = new VCIJTextField("");
	String selectUser = "";
	String userDept = "";
	public String getSelectUser() {
		return selectUser;
	}

	public void setSelectUser(String selectUser) {
		this.selectUser = selectUser;
	}
	private UserObject[] userObjects;
	private boolean isOk = false;
	
	public TaskAssignedDialog(Frame parent) {
		super(parent, true);
		setTitle("选择代办人");
		initUI();
		addListener();
	    setSize(280, 320);
	    centerToScreen();
	    this.setSize(280, 350);
		this.setVisible(true);
	}

	private void initUI() {
		JPanel assignPanel = new JPanel(new BorderLayout());
		JScrollPane leftScrPane = new JScrollPane();
		initLeftPanel(leftScrPane);
		assignPanel.add(leftScrPane);
		
		JPanel btnPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
		btnPanel.add(okBtn);
		btnPanel.add(cancelBtn);
		JPanel topPanel = new JPanel(new FlowLayout(FlowLayout.CENTER));
//		topPanel.add(lbluser);
//		topPanel.add(jtfuser);
		getContentPane().add(topPanel,BorderLayout.NORTH);
		getContentPane().add(assignPanel);
		getContentPane().add(btnPanel, BorderLayout.SOUTH);
	}
	
	private void initLeftPanel(JScrollPane leftJsp) {
		String rootObj = "root";
		UserObject user = LogonApplication.getUserObject();
		RightManagementClientDelegate del = new RightManagementClientDelegate(LogonApplication.getUserEntityObject());
//		try {
//			DeptObject dept = del.fetchDeptByUserId(user.getId());
//			if(dept != null){
//				userDept = dept.getName();
//				rootNode = new VCIBaseTreeNode(userDept,rootObj);
//				
//			}else
			rootNode = new VCIBaseTreeNode("人员",rootObj);
			treeModel = new VCIBaseTreeModel(rootNode);
			leftTree = new VCIBaseTree(treeModel, new ProcessCategoryTreeCellRender());
			leftTree.getSelectionModel().setSelectionMode(TreeSelectionModel.DISCONTIGUOUS_TREE_SELECTION);
			leftTree.addTreeExpansionListener(new TreeExpansionListener() {
				public void treeExpanded(TreeExpansionEvent event) {
					TreePath treePath = event.getPath();
					VCIBaseTreeNode selectNode = (VCIBaseTreeNode) treePath.getLastPathComponent();
					if(!selectNode.isExpand()){
						selectNode.removeAllChildren();
						getExpandTreeData(selectNode);
					}
				}
				
				public void treeCollapsed(TreeExpansionEvent event) {
				}
			});
			leftJsp.getViewport().add(leftTree);
			initLeftTree(rootNode);
//		} catch (VCIException e) {
//			VCIOptionPane.showMessage(this, "查询人员所属部门时出错");
//			e.printStackTrace();
//		}
	}
	private void getExpandTreeData(VCIBaseTreeNode treeNode) {
		try{
			String processCategoryId = "";
			Object nodeObject = treeNode.getObj();
			if(nodeObject instanceof ProcessDefinitionObject) {
				treeNode.setLeaf(true);
				return;
			}
			if(nodeObject instanceof String && nodeObject.toString().equals("root")){
				initLeftTree(rootNode);
			}else{
				if (nodeObject instanceof ProcessCategoryObject) {
					processCategoryId = ((ProcessCategoryObject)nodeObject).getId();
				} else if (nodeObject instanceof RMTypeObject) {
					TreeNode[] treeNodes = treeNode.getPath();
					processCategoryId = ((ProcessCategoryObject)(((VCIBaseTreeNode)treeNodes[1]).getObj())).getId();
				}
				//refresh tree from db
				ProcessCategoryObject[] processCategories = new ProcessCustomClientDelegate(LogonApplication.getUserEntityObject()).getProcessCategories(processCategoryId);
				for (ProcessCategoryObject obj : processCategories) {
					VCIBaseTreeNode node = new VCIBaseTreeNode(obj.getName(), obj);
					treeModel.insertNodeInto(node, treeNode, treeNode.getChildCount());
					treeNode.setExpand(true);
				}
			}
		}catch(VCIException ex){
			VCIOptionPane.showError(LogonApplication.frame, "RMIPRm", ex);
		}
	}
	
	private void initLeftTree(VCIBaseTreeNode treeNode) {
		try{
			RightManagementClientDelegate del = new RightManagementClientDelegate();
			UserObject[] object = del.fetchUserInfo();
//			if(userDept != ""){
				for(UserObject obj : object){
//					if(obj.getUserName().equals(LogonApplication.getUserObject().getUserName())){
//						continue;
//					}
//					DeptObject dept = del.fetchDeptByUserId(obj.getId());
//					if(!"".equals(this.getSelectUser())){
//						if(obj.toString().contains(selectUser)){
//							if(dept != null && dept.getName().equals(userDept)){
//								VCIBaseTreeNode node = new VCIBaseTreeNode(obj.getUserName()+"("+obj.getTrueName()+")", obj);
//								treeNode.add(node);
//							}
//						}	
//					}else{
//						if(dept != null && dept.getName().equals(userDept)){
							VCIBaseTreeNode node = new VCIBaseTreeNode(obj.toString(), obj);
							treeNode.add(node);
//						}
//					}
				}
//			}
			this.leftTree.setSelectionPath(new TreePath(treeNode));
			this.leftTree.updateUI();
		} catch (VCIException e) {
			e.printStackTrace();
		}
	}

	private void addListener() {
		okBtn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				ok();
			}
		});
		
		cancelBtn.addActionListener(new ActionListener() {
			public void actionPerformed(ActionEvent e) {
				close();
			}
		});
//		jtfuser.addKeyListener(new KeyAdapter(){
//			public void keyReleased(KeyEvent e) {
//				select();
//			}
//		});
	}

	private UserObject[] getSelectProcessDefinition() {
		UserObject result = null;
		List<UserObject> list = new LinkedList<UserObject>();
		int count = leftTree.getSelectionCount();
//		  (VCIBaset)leftTree.getSelectionPaths();
//		Object node = leftTree.getLastSelectedPathComponent();
		Object[] nodes = new Object[count];
		if(count != 0 ){
			for(int i = 0 ;i<count;i++){
				nodes[i] = leftTree.getSelectionPaths()[i].getLastPathComponent();
			}
		}
		if(nodes != null) {
			for(int i  = 0 ;i<nodes.length;i++){
				Object obj = ((VCIBaseTreeNode)nodes[i]).getObj();
				if(obj instanceof UserObject) {
//					result = (UserObject) obj;
					list.add((UserObject) obj);
				}
			}
		}
		return list.toArray(new UserObject[0]);
	}
	
	private void ok() {
		userObjects = getSelectProcessDefinition();
		
		if(userObjects == null){
			JOptionPane.showMessageDialog(this, "请选择代办人");
			return;
		}
		isOk = true;
		close();
	}

	private void close() {
		this.dispose();
		this.setVisible(false);
	}
	
	public UserObject[] getProcessDefinitionObject() {
		return userObjects;
	}

	private void centerToScreen() {
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		Dimension componentSize = getSize();
		if (componentSize.height > screenSize.height) {
			componentSize.height = screenSize.height;
		}

		if (componentSize.width > screenSize.width) {
			componentSize.width = screenSize.width;
		}

		this.setLocation((screenSize.width - componentSize.width) / 2,
				(screenSize.height - componentSize.height) / 2);
	}

	public boolean isOk() {
		return isOk;
	}
	
	private String getI18nString(String code){
		return ClientHelper.getI18nStringForWorkflow(this.getClass().getName() + "." + code, this.getLocale());
	}
	private void select(){
//		setSelectUser(jtfuser.getText());
		rootNode.removeAllChildren();
		initLeftTree(rootNode);
	}

}