package goodsinterface;

import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.event.*;
import data.*;
import java.awt.Rectangle;

public class GoodsPriceFrame extends JFrame implements ActionListener {
  JPanel contentPane;
  //創(chuàng)建列表框數(shù)據(jù)類和列表框控件
  DefaultListModel listData1 = new DefaultListModel();
  DefaultListModel listData2 = new DefaultListModel();
  JList jList1 = new JList(listData1);
  JList jList2 = new JList(listData2);
  //創(chuàng)建組合框控件
  JComboBox jComboBox1 = new JComboBox();
  //創(chuàng)建滾動(dòng)框控件
  JScrollPane jScrollPane1 = new JScrollPane();
  JScrollPane jScrollPane2 = new JScrollPane();
  //創(chuàng)建標(biāo)簽控件
  JLabel jLabel1 = new JLabel();
  JLabel jLabel2 = new JLabel();
  JLabel jLabel3 = new JLabel();
  JLabel jLabel4 = new JLabel();
  JLabel jLabel5 = new JLabel();
  JLabel jLabel6 = new JLabel();
  JLabel jLabel7 = new JLabel();
  JLabel jLabel8 = new JLabel();
  //創(chuàng)建編輯框控件
  JTextField jTextField1 = new JTextField();
  JTextField jTextField2 = new JTextField();
  JTextField jTextField3 = new JTextField();
  JTextField jTextField4 = new JTextField();
  JTextField jTextField5 = new JTextField();
  //創(chuàng)建按鈕控件
  JButton jButton1 = new JButton();
  JButton jButton2 = new JButton();
  JButton jButton3 = new JButton();
  JButton jButton4 = new JButton();
  JButton jButton5 = new JButton();
  JButton jButton6 = new JButton();
  JButton jButton7 = new JButton();
  //創(chuàng)建字體類
  Font dialog13 = new java.awt.Font("Dialog", 0, 13);
  //聲明數(shù)據(jù)類
  GoodsData goodsData = new GoodsData();
  //創(chuàng)建商品類別數(shù)組
  String[][] categories = new String[0][4];
  //創(chuàng)建商品數(shù)組
  String[][] goods = new String[0][13];
  String user = "user";
  //創(chuàng)建字段數(shù)組
  String[] fieldNames = {"goodsBarCode", "goodsName", "producer"};

  public GoodsPriceFrame() {
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  //傳入用戶變量
  public GoodsPriceFrame(String user) {
    //設(shè)置用戶名字
    this.user = user;
    try {
      jbInit();
    }
    catch(Exception e) {
      e.printStackTrace();
    }
  }
  private void jbInit() throws Exception  {
    contentPane = (JPanel) this.getContentPane();
    contentPane.setLayout(null);
    this.setSize(new Dimension(645, 380));
    this.setTitle("商品價(jià)格與折扣管理窗口(" + user + ")");
    //設(shè)置標(biāo)簽控件屬性
    jLabel1.setText("商品類別列表：");
    jLabel1.setBounds(new Rectangle(28, 19, 97, 16));
    jLabel2.setText("商品列表：");
    jLabel2.setBounds(new Rectangle(176, 19, 97, 16));
    jLabel3.setText("查詢條件：");
    jLabel3.setBounds(new Rectangle(344, 45, 97, 16));
    jLabel4.setText("查詢值：");
    jLabel4.setBounds(new Rectangle(344, 93, 97, 16));
    jLabel5.setBounds(new Rectangle(344, 141, 110, 16));
    jLabel5.setText("商品條形碼：");
    jLabel6.setText("商品名稱：");
    jLabel6.setBounds(new Rectangle(344, 190, 72, 16));
    jLabel7.setText("商品價(jià)格：");
    jLabel7.setBounds(new Rectangle(344, 238, 69, 16));
    jLabel8.setText("商品折扣：");
    jLabel8.setBounds(new Rectangle(491, 238, 65, 16));
    //設(shè)置編輯框控件屬性
    jTextField1.setBounds(new Rectangle(427, 93, 102, 22));
    jTextField2.setEditable(false);
    jTextField2.setBounds(new Rectangle(427, 141, 196, 22));
    jTextField3.setEditable(false);
    jTextField3.setBounds(new Rectangle(427, 190, 196, 22));
    jTextField4.setBounds(new Rectangle(426, 238, 58, 22));
    jTextField5.setBounds(new Rectangle(565, 238, 58, 22));
    //設(shè)置按鈕屬性
    jButton1.setText("顯示類別");
    jButton1.setActionCommand("showCategory");
    jButton1.setBounds(new Rectangle(28, 249, 139, 25));
    jButton2.setText("修改");
    jButton2.setActionCommand("updatePriceDiscount");
    jButton2.setBounds(new Rectangle(344, 286, 95, 25));
    jButton3.setText("確定");
    jButton3.setActionCommand("ok");
    jButton3.setEnabled(false);
    jButton3.setBounds(new Rectangle(440, 286, 61, 25));
    jButton4.setText("取消");
    jButton4.setActionCommand("cancel");
    jButton4.setEnabled(false);
    jButton4.setBounds(new Rectangle(503, 286, 61, 25));
    jButton5.setText("退出");
    jButton5.setActionCommand("exit");
    jButton5.setBounds(new Rectangle(565, 286, 61, 25));
    jButton6.setText("查詢");
    jButton6.setActionCommand("search");
    jButton6.setBounds(new Rectangle(546, 93, 77, 25));
    jButton7.setText("顯示折扣商品");
    jButton7.setActionCommand("showDiscountGoods");
    jButton7.setBounds(new Rectangle(28, 286, 139, 25));
    //設(shè)置組合框?qū)傩?    jComboBox1.setBounds(new Rectangle(427, 45, 196, 22));
    jComboBox1.addItem("按商品條形碼查詢");
    jComboBox1.addItem("按商品名稱查詢");
    jComboBox1.addItem("按生產(chǎn)廠商查詢");
    //設(shè)置滾動(dòng)框的屬性
    jScrollPane1.getViewport().add(jList1, null);
    jScrollPane2.getViewport().add(jList2, null);
    jScrollPane1.setBounds(new Rectangle(28, 45, 139, 193));
    jScrollPane2.setBounds(new Rectangle(176, 45, 153, 266));
    //為列表框加入選擇接收器
    jList1.addListSelectionListener(new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        jList1_valueChanged(e);
      }
    });
    jList2.addListSelectionListener(new ListSelectionListener() {
      public void valueChanged(ListSelectionEvent e) {
        jList2_valueChanged(e);
      }
    });
    contentPane.add(jScrollPane1, null);
    contentPane.add(jScrollPane2, null);
    contentPane.add(jLabel1, null);
    contentPane.add(jLabel2, null);
    contentPane.add(jLabel3, null);
    contentPane.add(jLabel4, null);
    contentPane.add(jLabel5, null);
    contentPane.add(jLabel6, null);
    contentPane.add(jLabel7, null);
    contentPane.add(jLabel8, null);
    contentPane.add(jButton1, null);
    contentPane.add(jButton2, null);
    contentPane.add(jButton3, null);
    contentPane.add(jButton4, null);
    contentPane.add(jButton5, null);
    contentPane.add(jButton6, null);
    contentPane.add(jButton7, null);
    contentPane.add(jComboBox1, null);
    contentPane.add(jTextField1, null);
    contentPane.add(jTextField2, null);
    contentPane.add(jTextField3, null);
    contentPane.add(jTextField4, null);
    contentPane.add(jTextField5, null);
    setupFontAndListener();
    //顯示全部商品類別的方法
    showAllCategories();
  }
  //設(shè)置窗口類的字體和為按鈕加入動(dòng)作接收器的方法
  public void setupFontAndListener(){
    Component[] components = contentPane.getComponents();
    //創(chuàng)建臨時(shí)按鈕控件
    JButton tmpBtn = new JButton();
    for(int i = 0; i < components.length; i++){
      components[i].setFont(dialog13);
      if(components[i].getClass().getName().equals("javax.swing.JButton")){
        tmpBtn = (JButton)components[i];
        tmpBtn.addActionListener(this);
      }
    }
  }
  //顯示全部商品類別的方法
  public void showAllCategories(){
    listData1.clear();
    //取得商品類別數(shù)據(jù)
    categories = goodsData.getAllGoodsCategory();
    //為商品類別列表框加入商品類別數(shù)據(jù)
    for(int i = 0; i < categories.length; i++){
      listData1.addElement(categories[i][2]);
    }
  }
  //根據(jù)商品類別顯示商品的方法
  public void showCategory(){
    //取得當(dāng)前選擇項(xiàng)的位置
    int selectedIndex = jList1.getSelectedIndex();
    if(selectedIndex == -1){return;}
    //取得商品數(shù)據(jù)
    goods = goodsData.getGoodsByGoodsCategory(Integer.parseInt(
        categories[selectedIndex][0]));
    this.showSearchGoods();
  }
  //顯示查詢商品的方法
  public void showSearchGoods(){
    listData2.clear();
    //為商品列表框加入商品數(shù)據(jù)
    for(int i = 0; i < goods.length; i++){
      listData2.addElement(goods[i][2]);
    }
  }
  //顯示單個(gè)商品的方法
  public void showGood(){
    //取得當(dāng)前選擇項(xiàng)的位置
    int selectedIndex = jList2.getSelectedIndex();
    //當(dāng)列表框不處于選擇狀態(tài)，不顯示商品數(shù)據(jù)
    if(selectedIndex == -1){
       return;
    }
    //顯示商品條形碼
    jTextField2.setText(goods[selectedIndex][0]);
    //顯示商品名稱
    jTextField3.setText(goods[selectedIndex][2]);
    //顯示價(jià)格
    jTextField4.setText(goods[selectedIndex][11]);
    //顯示折扣
    jTextField5.setText(goods[selectedIndex][12]);
  }
  //清空單個(gè)商品顯示的方法
  public void clearGood(){
    jTextField2.setText("");
    jTextField3.setText("");
    jTextField4.setText("");
    jTextField5.setText("");
  }
  //退出方法
  public void exit(){
    //隱藏窗口
    this.setVisible(false);
    //清空數(shù)組的內(nèi)容
    categories = new String[0][4];
    goods = new String[0][13];
    //清空列表框的內(nèi)容
    listData1.clear();
    listData2.clear();
    //取得面板上的所有控件
    Component[] components = contentPane.getComponents();
    //創(chuàng)建臨時(shí)文本框控件
    JTextField tmpTextField = new JTextField();
    for(int i = 0; i < components.length; i++){
      if(components[i].getClass().getName().equals("javax.swing.JTextField")){
        tmpTextField = (JTextField)components[i];
        //清空編輯框的內(nèi)容
        tmpTextField.setText("");
      }
    }
    //System.exit(0);
  }
  //檢查商品按鈕的狀態(tài)
  public void checkGoodsBtn(boolean isManipulated){
    if(isManipulated){
      jButton2.setEnabled(false);
      jButton3.setEnabled(true);
      jButton4.setEnabled(true);
    }else{
      jButton2.setEnabled(true);
      jButton3.setEnabled(false);
      jButton4.setEnabled(false);
    }
  }
  protected void processWindowEvent(WindowEvent e) {
    super.processWindowEvent(e);
    if (e.getID() == WindowEvent.WINDOW_CLOSING) {
      exit();
    }
  }
  //列表1的選擇事件
  void jList1_valueChanged(ListSelectionEvent e) {
    if(listData1.size() > 0){
      this.showCategory();
    }
  }
  //列表2的選擇事件
  void jList2_valueChanged(ListSelectionEvent e) {
    if(listData2.size() > 0){
      this.showGood();
    }else{
      this.clearGood();
    }
  }
  //單擊事件
  public void actionPerformed(ActionEvent e) {
    //取得按鈕的動(dòng)作字符串
    String actionCommand = e.getActionCommand().trim();
    //單擊按鈕的處理代碼
    if (actionCommand.equals("showCategory")) {
      this.showAllCategories();
    }else if(actionCommand.equals("showDiscountGoods")){
      //取得折扣商品
      goods = goodsData.getDiscountGoods();
      this.showSearchGoods();
    }else if(actionCommand.equals("search")){
      //取得查詢編輯框的內(nèi)容
      String searchValue = jTextField1.getText().trim();
      //取得查詢選項(xiàng)
      int selectedIndex = jComboBox1.getSelectedIndex();
      if(searchValue.length() == 0){
        JOptionPane.showMessageDialog(null, "請(qǐng)輸入查詢值");
        return;
      }
      //根據(jù)字段取得查詢值
      goods = goodsData.getGoodsByField(fieldNames[selectedIndex], searchValue);
      this.showSearchGoods();
    }else if(actionCommand.equals("updatePriceDiscount")){
      //進(jìn)行商品價(jià)格與折扣修改時(shí)檢查商品的選擇狀態(tài)
      if (jList2.isSelectionEmpty()) {
        JOptionPane.showMessageDialog(null, "請(qǐng)選擇商品.");
        return;
      }
      this.checkGoodsBtn(true);
    }else if(actionCommand.equals("ok")){
      //取得商品條形碼、價(jià)格和折扣
      String goodsBarCode = jTextField2.getText().trim();
      String salePriceStr = jTextField4.getText().trim();
      String discountStr = jTextField5.getText().trim();
      double salePrice = 0;
      double discount = 0;
      if(goodsData.checkDouble(salePriceStr) == 0){
        JOptionPane.showMessageDialog(null, "商品價(jià)格必須是數(shù)字.");
        return;
      }else{
        salePrice = Double.parseDouble(salePriceStr);
      }
      if(goodsData.checkNumIn0To1(discountStr) == 0){
        JOptionPane.showMessageDialog(null, "商品折扣的數(shù)值范圍必須大于0小于等于1.");
        return;
      }else{
        discount = Double.parseDouble(discountStr);
      }
      int result = goodsData.setGoodsPriceDiscount(goodsBarCode, salePrice, discount);
      if(result == 1){
        //更新商品數(shù)組的價(jià)格和折扣數(shù)據(jù)
        int selectedIndex = jList2.getSelectedIndex();
        goods[selectedIndex][11] = salePriceStr;
        goods[selectedIndex][12] = discountStr;
      }else{
        JOptionPane.showMessageDialog(null, "商品價(jià)格與折扣更改失敗.");
      }
      this.checkGoodsBtn(false);
    }else if(actionCommand.equals("cancel")){
      this.jList2_valueChanged(null);
      this.checkGoodsBtn(false);
    }else if(actionCommand.equals("exit")){
      exit();
    }
  }
}