package cn.javass.bookmgr.user.ui.panels;

import java.awt.*;
import com.borland.jbcl.layout.*;
import javax.swing.*;
import java.awt.event.*;
import cn.javass.bookmgr.user.business.factory.UserFactory;
import cn.javass.bookmgr.MainFrame;
import cn.javass.bookmgr.user.valueobject.UserModel;
/**
 * 用戶模塊表現層用于用戶登錄的Panel
 *
 * <p>Title: Java私塾第一個Java項目——圖書進銷存系統（單機版）</p>
 * <p>Description: 網址:<a href="http://www.javass.cn">http://www.javass.cn</a>
 * 新電話:010-86835215   新地址:北京市海淀區廠洼路5號院深博達商務樓5層</p>
 * <p>Copyright: Copyright (c) 2008</p>
 * <p>Company: Java私塾</p>
 * @author Java私塾
 * @version 1.0
 */
public class LoginPanel extends JPanel {
  //以下為本界面需要的組件定義

  XYLayout xYLayout1 = new XYLayout();
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JTextField txt_userId = new JTextField();
  JPasswordField pwd_pwd = new JPasswordField();
  JButton btn_login = new JButton();

  /**
   * 用來保持對主窗體的引用
   */
  MainFrame mf= null;

  /**
   * 構建用戶登錄的Panel
   * @param mf 主窗體的引用
   */
  public LoginPanel(MainFrame mf) {
    try {
      this.mf = mf;
      jbInit();
    }
    catch(Exception ex) {
      ex.printStackTrace();
    }
  }
  /**
   * 真正進行組件初始化，并構建整個界面
   * @throws Exception
   */
  void jbInit() throws Exception {
    jLabel1.setFont(new java.awt.Font("SansSerif", 1, 30));
    jLabel1.setText("歡迎使用Javass圖書進銷存(單機版)");
    this.setLayout(xYLayout1);
    this.setMinimumSize(new Dimension(800, 600));
    this.setPreferredSize(new Dimension(800, 600));
    xYLayout1.setWidth(800);
    xYLayout1.setHeight(600);
    jLabel2.setText("用戶編號");
    jLabel3.setText("用戶口令");
    txt_userId.setText("");
    pwd_pwd.setText("");
    btn_login.setText("登錄");
    btn_login.addActionListener(new LoginPanel_btn_login_actionAdapter(this));
    this.add(jLabel1,    new XYConstraints(160, 40, 535, 76));
    this.add(jLabel2, new XYConstraints(275, 152, 65, 37));
    this.add(txt_userId, new XYConstraints(338, 155, 209, 34));
    this.add(pwd_pwd,     new XYConstraints(338, 218, 209, 34));
    this.add(jLabel3,  new XYConstraints(275, 215, 65, 37));
    this.add(btn_login, new XYConstraints(456, 277, 91, 36));
  }
  /**
   * 點擊登錄按鈕的事件處理
   * @param e Action事件對象
   */
  void btn_login_actionPerformed(ActionEvent e) {
    //1:收集參數
    String id = this.txt_userId.getText();
    String pwd = new String(this.pwd_pwd.getPassword());
    //1.1檢測數據
    if (id == null || id.trim().length() == 0) {
      JOptionPane.showMessageDialog(null, "用戶編號不能為空");
      return;
    }
    if (pwd == null || pwd.trim().length() == 0) {
      JOptionPane.showMessageDialog(null, "用戶口令不能為空");
      return;
    }
    //2:
    //3:調用邏輯層Api，并獲取返回值
    boolean flag = UserFactory.getInstance().createUserEbi().login(id, pwd);
    //4:根據返回值選擇新的Panel
    if (flag) {
      //使登錄界面不再出現
      this.remove(this.txt_userId);
      this.remove(this.pwd_pwd);
      this.remove(this.btn_login);
      this.remove(this.jLabel2);
      this.remove(this.jLabel3);
      this.updateUI();
      //針對菜單進行簡單的權限控制
      UserModel um = UserFactory.getInstance().createUserEbi().getUserModelById(
          id);
      this.mf.jMenuItem1.setEnabled(false);
      this.mf.jMenuItem17.setEnabled(true);
      if (um.getType() == um.TYPE_INT_1) {
        this.mf.jMenu1.setEnabled(true);
        this.mf.jMenu2.setEnabled(true);
        this.mf.jMenu3.setEnabled(true);
        this.mf.jMenu4.setEnabled(true);
        this.mf.jMenu5.setEnabled(true);
      }
      else if (um.getType() == um.TYPE_INT_2) {
        this.mf.jMenu3.setEnabled(true);
      }
      else if (um.getType() == um.TYPE_INT_3) {
        this.mf.jMenu2.setEnabled(true);
      }
      else if (um.getType() == um.TYPE_INT_4) {
        this.mf.jMenu1.setEnabled(true);
      }
      else if (um.getType() == um.TYPE_INT_5) {
        this.mf.jMenu4.setEnabled(true);
      }
      else if (um.getType() == um.TYPE_INT_6) {
        this.mf.jMenu5.setEnabled(true);
      }
    }else{
      JOptionPane.showMessageDialog(null, "用戶編號或口令不正確");
    }
  }
}
//以下為事件處理中的Adaper類
class LoginPanel_btn_login_actionAdapter implements java.awt.event.ActionListener {
  LoginPanel adaptee;

  LoginPanel_btn_login_actionAdapter(LoginPanel adaptee) {
    this.adaptee = adaptee;
  }
  public void actionPerformed(ActionEvent e) {
    adaptee.btn_login_actionPerformed(e);
  }
}