package library.user;

import java.awt.BorderLayout;
import java.awt.Container;
import java.awt.GridLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;

import javax.swing.JButton;
import javax.swing.JComboBox;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JOptionPane;
import javax.swing.JPanel;
import javax.swing.JPasswordField;
import javax.swing.JTextField;

import library.hibernate.UserTable;
import library.main.HibernateUtil;

import org.hibernate.Session;
import org.hibernate.SessionFactory;
import org.hibernate.Transaction;

/**
 * 修改用戶信息類，將新的用戶注冊信息保存到數據庫中
 * 
 * @author lianhw
 * 
 */
public class UserModify extends JFrame implements ActionListener {

	JPanel panel1, panel2;

	Container container;

	JLabel userLabel, passwordLabel, newPasswordLabel, passwordConfirmLabel,loginPrivelegeLabel;

	JTextField userNameText;

	JPasswordField passwordText, newPasswordText, passwordConfirmText;

	JButton updateButton, cancelButton;

	JComboBox loginPrivelegeComboBox;

	public UserModify() {
		super("更改密碼");
		container = getContentPane();
		container.setLayout(new BorderLayout());
		// “用戶名”標簽
		userLabel = new JLabel("用戶名", JLabel.CENTER);
		// “原密碼”標簽
		passwordLabel = new JLabel("原密碼", JLabel.CENTER);
		// “新密碼”標簽
		newPasswordLabel = new JLabel("新密碼", JLabel.CENTER);
		// “確認新密碼”標簽
		passwordConfirmLabel = new JLabel("確認新密碼", JLabel.CENTER);
		//“選擇權限”標簽
		loginPrivelegeLabel=new JLabel("登錄權限", JLabel.CENTER);
		// 輸入用戶名文本框
		userNameText = new JTextField(10);
		// 輸入密碼文本框
		passwordText = new JPasswordField(10);
		// 輸入新密碼文本框
		newPasswordText = new JPasswordField(10);
		// 密碼確認文本框
		passwordConfirmText = new JPasswordField(10);
		// 選擇用戶權限
		loginPrivelegeComboBox = new JComboBox();
		loginPrivelegeComboBox.addItem("系統管理員");
		loginPrivelegeComboBox.addItem("書籍管理員");
		loginPrivelegeComboBox.addItem("借閱管理員");
		// “更新”按鈕
		updateButton = new JButton("更新");
		// “取消”按鈕
		cancelButton = new JButton("取消");
		// 為“更新”按鈕添加動作監聽者
		updateButton.addActionListener(this);
		// 為“取消”按鈕添加動作監聽者
		cancelButton.addActionListener(this);
		panel1 = new JPanel();
		panel1.setLayout(new GridLayout(5, 2));
		panel1.add(userLabel);
		panel1.add(userNameText);
		panel1.add(passwordLabel);
		panel1.add(passwordText);
		panel1.add(newPasswordLabel);
		panel1.add(newPasswordText);
		panel1.add(passwordConfirmLabel);
		panel1.add(passwordConfirmText);
		panel1.add(loginPrivelegeLabel);
		panel1.add(loginPrivelegeComboBox);
		panel2 = new JPanel();
		panel2.add(updateButton);
		panel2.add(cancelButton);
		container.add(panel1, BorderLayout.CENTER);
		container.add(panel2, BorderLayout.SOUTH);
		// 設置窗口的大小
		setSize(300, 300);

	}

	/**
	 * 動作響應方法，修改用戶的注冊信息
	 * 
	 * @see java.awt.event.ActionListener#actionPerformed(java.awt.event.ActionEvent)
	 */
	public void actionPerformed(ActionEvent action) {
		if (action.getSource() == cancelButton) {
			// 單擊“取消”按鈕不作任何事情
			this.dispose();
		} else if (action.getSource() == updateButton) {

			// 單擊“更新”按鈕將新的用戶信息保存到數據庫中
			char[] password = passwordText.getPassword();
			// 將密碼轉成會字符串
			String passwordStr = new String(password);
			char[] newPassword = newPasswordText.getPassword();
			String newPasswordStr = new String(newPassword);
			char[] confirmPassword = passwordConfirmText.getPassword();
			String confirmPasswordStr = new String(confirmPassword);
			// 判斷輸入的用戶名是否為空
			if (userNameText.getText().trim().equals("")) {
				JOptionPane.showMessageDialog(null, "用戶名不能為空！");
			} else if (passwordStr.equals("")) {
				// 判斷輸入的密碼是否為空
				JOptionPane.showMessageDialog(null, "原密碼不能為空！");
			} else if (!newPasswordStr.equals(confirmPasswordStr)) {
				// 判斷輸入的新密碼和確認密碼是否一致
				JOptionPane.showMessageDialog(null, "兩次輸入的新密碼不一致！");
			} else {

				// 取得SessionFactory
				SessionFactory sessionFactory = HibernateUtil
						.getSessionFactory();
				// 打開session
				Session session = sessionFactory.openSession();
				// 創建一個事務
				Transaction tx = session.beginTransaction();
				// 創建UserTable對象
				UserTable user = new UserTable();
				// 設置user對象的名字
				user.setUserName(userNameText.getText().trim());
				// 設置user對象的密碼
				user.setPassword(newPasswordText.getText().trim());
				// 設置user對象的權限
				user.setPower(loginPrivelegeComboBox.getSelectedItem()+"");
				// 保存user對象
				session.saveOrUpdate(user);
				// 事務提交
				tx.commit();
				// 關閉session
				session.close();
				this.dispose();
			}
		}

	}
}