package com.vci.client.omd.btm.ui;

import java.awt.BorderLayout;
import java.awt.Dimension;
import java.awt.GridBagConstraints;
import java.awt.GridBagLayout;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.util.ArrayList;
import java.util.Enumeration;
import java.util.HashMap;

import javax.swing.JButton;
import javax.swing.JDialog;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JScrollPane;
import javax.swing.JTree;
import javax.swing.tree.DefaultMutableTreeNode;
import javax.swing.tree.TreeSelectionModel;

import com.vci.corba.omd.btm.BtmItem;
import com.vci.corba.common.VCIError;

public class FNameSelectDialog extends JDialog{

	/**
	 * 
	 */
	private static final long serialVersionUID = -8277560177280192479L;
	private static FNameSelectDialog fNameSelectDialog = null;
	private JTree btmTree;
	private String fName = "";
	private String btmName = "";
	private JPanel centerPanel;
	private JPanel southPanel;
	private JButton btnOK;
	private JButton btnCancel;
	private BtmItem[] btmArray;
	private HashMap<String, ArrayList<String>> btmNameListMap;
	private DefaultMutableTreeNode rootNode;
	
	private FNameSelectDialog(){
		initUI();
		initBtmTree();
		addListener();
	}
	
	public static FNameSelectDialog getInstance(){
		if(fNameSelectDialog == null){
			fNameSelectDialog = new FNameSelectDialog();
		}
		return fNameSelectDialog;
	}
	
	private void initUI(){
		this.setTitle("业务类型");
		Dimension screenSize = Toolkit.getDefaultToolkit().getScreenSize();
		this.setSize(screenSize.width/4, screenSize.height/2);
		this.setModal(true);
		this.setLocationRelativeTo(null);
		this.setResizable(false);
		
		this.setLayout(new BorderLayout(5, 5));
		
		//树
		centerPanel = new JPanel();
		//确定，取消按钮
		southPanel = new JPanel();
		this.add(centerPanel, BorderLayout.CENTER);
		this.add(southPanel, BorderLayout.SOUTH);
		
		centerPanel.setLayout(new GridBagLayout());
		GridBagConstraints g = new GridBagConstraints();
		g.gridx = 0;
		g.gridy = 0;
		g.weightx = 1.0;
		g.weighty = 1.0;
		g.fill = GridBagConstraints.BOTH;
		rootNode = new DefaultMutableTreeNode("业务类型树");
		btmTree = new JTree(rootNode);
		btmTree.setAutoscrolls(true);
		//设置单选模式
		btmTree.getSelectionModel().setSelectionMode(TreeSelectionModel.SINGLE_TREE_SELECTION);
		centerPanel.add(new JScrollPane(btmTree), g);
		
		btnOK = new JButton("确定");
		btnCancel = new JButton("取消");
		southPanel.add(btnOK);
		southPanel.add(btnCancel);
	}
	
	private void initBtmTree(){
		try {
			
			btmArray = BtmClient.getService().getAllBtmItem("");
			btmNameListMap = new HashMap<String, ArrayList<String>>();
			BtmItem BtmItem = null;
			rootNode = (DefaultMutableTreeNode) btmTree.getModel().getRoot();
			if(!rootNode.isLeaf()){
				rootNode.removeAllChildren();
			}
			for(int i = 0; i < btmArray.length; i++){
				BtmItem = btmArray[i];
				if(BtmItem.fName.equals("")){
					rootNode.add(new DefaultMutableTreeNode(BtmItem.name));
				}else{
					if(btmNameListMap.get(BtmItem.fName) == null){
						ArrayList<String> btmList = new ArrayList<String>();
						btmList.add(BtmItem.name);
						btmNameListMap.put(BtmItem.fName, btmList);
					}else{
						btmNameListMap.get(BtmItem.fName).add(BtmItem.name);
					}
				}
			}
			//也许这段可以加到上面的if中
			for(Enumeration e = rootNode.children(); e.hasMoreElements();){
				DefaultMutableTreeNode node = (DefaultMutableTreeNode) e.nextElement();
				if(node.isLeaf()){
					addBtmNodeToTree(node);
				}
			}
		} catch (VCIError e) {
			e.printStackTrace();
		}
	}
	
	private void addListener(){
		btnOK.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				DefaultMutableTreeNode seletionNode = (DefaultMutableTreeNode) btmTree.getLastSelectedPathComponent();
				if(seletionNode == null){
					JOptionPane.showMessageDialog(null, "请选择业务类型", "无业务类型", JOptionPane.WARNING_MESSAGE);
					return;
				}
				String fName_ = (String)seletionNode.getUserObject();
				if(fName_.equals(btmName)){
					JOptionPane.showMessageDialog(null, "业务类型不能继承自己", "选择业务类型", JOptionPane.WARNING_MESSAGE);
					return;
				}
				fName = fName_;
				JOptionPane.showMessageDialog(null, "继承类型修改成功", "修改成功", JOptionPane.WARNING_MESSAGE);
				dispose();
			}
		});
		btnCancel.addActionListener(new ActionListener() {
			
			@Override
			public void actionPerformed(ActionEvent e) {
				dispose();
			}
		});
	}
	/**
	 * 由叶子节点去btmListMap中查找子节点
	 * @param node
	 */
	private void addBtmNodeToTree(DefaultMutableTreeNode node){
		String btmName = (String)node.getUserObject();
		if(btmNameListMap.get(btmName) == null){
			return;
		}else{
			ArrayList<String> btmNameList = null;
			String btmName_ = null;
			DefaultMutableTreeNode node_ = null;
			btmNameList = btmNameListMap.get(btmName);
			for(int i = 0; i < btmNameList.size(); i++){
				btmName_ = btmNameList.get(i);
				node_ = new DefaultMutableTreeNode(btmName_);
				node.add(node_);
				addBtmNodeToTree(node_);
			}
		}
		
	}
	
	
	public String getFName(){
		return fName;
	}
	
	public void setBtmName(String btmName){
		this.btmName = btmName;
	}
}