package com.leanwo.management;

import java.awt.AWTEvent;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Image;
import java.awt.Toolkit;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.io.IOException;
import java.net.URL;
import java.util.ArrayList;
import java.util.List;
import java.util.Vector;

import javax.imageio.ImageIO;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JScrollPane;
import javax.swing.JTable;
import javax.swing.JToolBar;
import javax.swing.ListSelectionModel;
import javax.swing.table.DefaultTableModel;
import javax.swing.table.TableColumnModel;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

import com.leanwo.management.config.AppConfig;
import com.leanwo.management.config.DataSourceConfig;
import com.leanwo.management.config.DataSourceConfigList;
import com.leanwo.management.util.SpringUtil;
import com.leanwo.management.widget.SelectEventListener;
import com.leanwo.management.widget.SelectObject;

/**
 * 数据源设置
 * 
 * @author YangZhiJie
 *
 */
public class DataSourceSettingFrame extends JFrame {

	private static Logger logger = LoggerFactory.getLogger(DataSourceSettingFrame.class);
	
	private JButton saveButton;

	// 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 DefaultTableModel tableModel;   //表格模型对象
	
	public DataSourceSettingFrame() {
		super();
		this.initView();
		setTitle("数据源配置");
	}
	

	private void initView() {
		this.setLayout(new BorderLayout(5,5));

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


		JScrollPane scrollPane = new JScrollPane(); // 支持滚动
		getContentPane().add(scrollPane, BorderLayout.CENTER);
		String[] columnNames = { "数据源beanId", "链接字符串", "用户名", "密码" };

		DataSourceConfigList dataSourceConfigList = (DataSourceConfigList)SpringUtil.getSingleBean(DataSourceConfigList.class);
		String [][] tableValues= null;
		if(dataSourceConfigList != null) {
			List<DataSourceConfig> items = dataSourceConfigList.getItems();
			tableValues= new String[items.size()][4];
			if(items != null) {
				for (int row = 0; row < items.size(); row++) { // 获得数据
					DataSourceConfig item = items.get(row);
					String[] rowValue = { item.getBeanId(), item.getUrl(), item.getUsername(), item.getPassword() };
					tableValues[row] = rowValue;
				}
			}
		}
		
		
		tableModel = new DefaultTableModel(tableValues,columnNames);
		
		JTable table = new JTable(tableModel); // 自定义的表格
		table.setAutoResizeMode(JTable.AUTO_RESIZE_LAST_COLUMN); // 关闭表格列的自动调整功能。
		table.setSelectionMode(ListSelectionModel.SINGLE_SELECTION); // 单选
//		table.setSelectionBackground(Color.YELLOW);
//		table.setSelectionForeground(Color.RED);
		table.setRowHeight(30);
		
		TableColumnModel columnModel = table.getColumnModel();
		columnModel.getColumn(0).setPreferredWidth(100);
		columnModel.getColumn(1).setPreferredWidth(400);
		columnModel.getColumn(2).setPreferredWidth(100);		
		columnModel.getColumn(3).setPreferredWidth(100);		
		table.setColumnModel(columnModel);
		
		scrollPane.setViewportView(table); // 支持滚动
		
        add(scrollPane, BorderLayout.CENTER);
        
		// 设置图标
		URL path = DataSourceSettingFrame.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);
		
		// 保存按钮
		this.saveButton.addActionListener(new ActionListener() {
			@Override
			public void actionPerformed(ActionEvent e) {
				save();
			}
		});
	}
	
	/**
	 * 保存数据
	 * 首先更新yml里面的内容，然后更新各个服务中applicationContext.xml里面的数据
	 */
	private void save() {
		Vector vector = tableModel.getDataVector();
		List<DataSourceConfig> dataSourceConfigs = new ArrayList<DataSourceConfig>();
		for(int i = 0; i < vector.size(); i ++) {
			DataSourceConfig dataSourceConfig = new DataSourceConfig();
			Vector rowData = (Vector)vector.elementAt(i);
			dataSourceConfig.setBeanId((String)rowData.elementAt(0));
			dataSourceConfig.setUrl((String)rowData.elementAt(1));
			dataSourceConfig.setUsername((String)rowData.elementAt(2));
			dataSourceConfig.setPassword((String)rowData.elementAt(3));
			dataSourceConfigs.add(dataSourceConfig);
		}
		
		// 根据dataSourceConfigs修改yml
		
		// 根据dataSourceConfigs修改各个服务器中applicationContext.xml里面的数据
		
		// 可以参考XmlConfigPathService中的方法
	}
	
}