/*
 * VikingGUI.java
 *
 * Created on October 15, 2001, 9:34 AM
 */

import javax.swing.table.*;
import javax.swing.*;
import javax.swing.event.*;
import java.awt.*;
import java.awt.Color;
import java.awt.event.*;
import javax.swing.event.TableModelListener;
import java.util.*;
/*
 * @author  Administrator
 * @version 
 */
public class VikingGUI extends JFrame implements ActionListener, ListSelectionListener {


    private Vector
                allCustVtr,
                selectCustVtr,
                letterVtr;
    private JFrame vikingFrame;
    private JPanel 
                    mainPnl,
                    allCustPnl,
                    buttonPnl,
                    selectCustPnl,
                    generateLetterPnl;
    private GridBagLayout
                frameGbLay,
                mainGbLay,
                allCustGbLay,
                selectCustGbLay,
                generateLetterGbLay;
    private GridBagConstraints gbConstraint;
    private GridValue gv;
    private JTable allCustTbl,
                   selectCustTbl,
                   generateLetterTbl;
    private VikingTableMdl 
                    allCustMdl,
                    selectCustMdl,
                    generateLetterMdl;
    private JComboBox templateCmbo;
    
    private JScrollPane
                    allCustScrl,
                    selectCustScrl,
                    generateLetterScrl;
    
    private JButton addButton,
                    removeButton,
                    generateButton;
    
    private JList generateLetterLst;
    private JTextArea generateLetterTextArea;
    
    /** Creates new VikingGUI */
    public VikingGUI(Vector cList) 
    {
        vikingFrame = new JFrame("The Viking 1.0");
        allCustVtr = new Vector();
        selectCustVtr = new Vector();
        letterVtr = new Vector();
        CustomerListNode addCust;
        Enumeration e = cList.elements();
        
        while(e.hasMoreElements())
        {
            addCust = new CustomerListNode((String)(e.nextElement()));
            allCustVtr.addElement(addCust);
        }
        frameGbLay = new GridBagLayout();
        gv = new GridValue();
        
        vikingFrame.addWindowListener
        (new WindowAdapter() 
        {   
            public void windowClosing(WindowEvent e) {
            System.exit(0);}
        }
        );
        mainPnl = new JPanel();
        mainGbLay = new GridBagLayout();
        setObjectSize(mainPnl,800,600);
        gbConstraint = new GridBagConstraints();
        
        mainPnl.setLayout(mainGbLay);
        
        //Create all customers panel
     
        allCustomerPanel();
        //create Select Customer panel
        selectCustomerPanel();
        
        createButtonPanel();
       
        generateLetterPnl = new JPanel();
        generateLetterGbLay = new GridBagLayout();
        
        generateLetterLst = new JList(letterVtr);
        generateLetterLst.addListSelectionListener(this);
        generateLetterPnl.setLayout(generateLetterGbLay);
        setObjectSize(generateLetterPnl,800,400);
        
        
        setObjectSize(generateLetterLst,150,400);
        
        generateLetterScrl = new JScrollPane(generateLetterLst);
        setObjectSize(generateLetterScrl,150,400);
        
        generateLetterTextArea = new JTextArea(600,400);
        setObjectSize(generateLetterTextArea,600,400);
        
        gv.set(0,0,1,1);
        addComponent(generateLetterScrl,generateLetterGbLay,generateLetterPnl,gbConstraint,gv);
        
        gv.set(0,1,1,1,gbConstraint.EAST);
        addComponent(generateLetterTextArea,generateLetterGbLay,generateLetterPnl,gbConstraint,gv);
        ///////////////////////
        gv.set(0,0,1,1);
        addComponent(allCustPnl,mainGbLay,mainPnl,gbConstraint,gv);
                
        gv.set(0,1,1,1,gbConstraint.CENTER,gbConstraint.NONE);
        addComponent(buttonPnl,mainGbLay,mainPnl,gbConstraint,gv);
       
        gv.set(0,2,1,1,gbConstraint.WEST,gbConstraint.NONE);
        addComponent(selectCustPnl,mainGbLay,mainPnl,gbConstraint,gv);
        
        gv.set(1,0,3,1,gbConstraint.SOUTH,gbConstraint.HORIZONTAL);
        addComponent(generateLetterPnl,mainGbLay,mainPnl,gbConstraint,gv);
 
        vikingFrame.getContentPane().add(mainPnl);
  

        vikingFrame.pack();
        vikingFrame.setVisible(true);
    }

    public void allCustomerPanel()
    {
        allCustPnl = new JPanel();
        allCustGbLay = new GridBagLayout();
        allCustPnl = new JPanel(allCustGbLay);
        
        //Create All Customers Table
        allCustMdl = new VikingTableMdl();
        allCustMdl.setCustomerData(allCustVtr);
        String[] allCustClm = {"Last Name","First Name","Salut."};
        allCustMdl.setColumnNames(allCustClm);
        
        allCustTbl = new JTable(allCustMdl);
        
        allCustScrl = new JScrollPane(allCustTbl);
        setObjectSize(allCustScrl,350,200);
        gv.set(0,0,1,1);
        addComponent(allCustScrl,allCustGbLay,allCustPnl,gbConstraint,gv);
    }
    
    public void selectCustomerPanel()
    {
        selectCustMdl = new VikingTableMdl();
        String[] selectCustClm = {"Last Name","First Name","Salut."};
        selectCustMdl.setColumnNames(selectCustClm);
        selectCustPnl = new JPanel();
        
        selectCustGbLay = new GridBagLayout();
        selectCustTbl = new JTable(selectCustMdl);
        selectCustScrl = new JScrollPane(selectCustTbl);
        selectCustPnl.setLayout(selectCustGbLay);
        
        JLabel templateLbl = new JLabel("Selected Template:");
        String[] templates = {"Offer 1","Offer 2","Offer 3"};
        
        generateButton = new JButton("Generate Letter");
        generateButton.addActionListener(this);
        
        templateCmbo = new JComboBox(templates);
        templateCmbo.setBackground(Color.white);
        templateCmbo.setEditable(false);
        setObjectSize(selectCustScrl,350,150);
        gv.set(0,0,1,1);
        addComponent(selectCustScrl,selectCustGbLay,selectCustPnl,gbConstraint,gv);
        
        gv.set(1,0,1,1);
        addComponent(templateCmbo,selectCustGbLay,selectCustPnl,gbConstraint,gv);
        
        gv.set(2,0,1,1);
        addComponent(generateButton,selectCustGbLay,selectCustPnl,gbConstraint,gv);
        
    }
    
    public void createButtonPanel()
    {
        buttonPnl = new JPanel();
        buttonPnl.setLayout(new GridLayout(2,1));
        addButton = new JButton(">>");
        addButton.addActionListener(this);
        
        removeButton = new JButton("<<");
        removeButton.addActionListener(this);
        
        buttonPnl.add(addButton,0);
        buttonPnl.add(removeButton,1);
        
    }
    
    public void setObjectSize(JComponent c,int w, int h)
    {
        
        c.setPreferredSize(new Dimension(w,h));
        c.setSize(new Dimension(w,h));
        c.setMinimumSize(new Dimension(w,h));
    }
    
    
    public void addComponent(Component c,GridBagLayout layout, Container contain,GridBagConstraints gbConstraint, GridValue gv)
    {
        gbConstraint.gridx = gv.column;
        gbConstraint.gridy = gv.row;
        
        gbConstraint.gridwidth = gv.width;
        gbConstraint.gridheight = gv.height;
        
        gbConstraint.anchor = gv.anchor;
        gbConstraint.fill = gv.fill;
        layout.setConstraints(c, gbConstraint);
        contain.add( c );
        
        return;
    }
    
    public void actionPerformed(java.awt.event.ActionEvent actionEvent) 
    {
        
       if(actionEvent.getSource() == addButton)
        {
            addSelectedRowsToSelectedCustomers();
        }
       else if(actionEvent.getSource() == removeButton)
       {
       }
       else if(actionEvent.getSource() == generateButton)
       {
           Enumeration selectCustE = selectCustVtr.elements();
           LetterGenerator letterGen = new LetterGenerator();
           while(selectCustE.hasMoreElements())
           {
               
               CustomerListNode customer = (CustomerListNode)selectCustE.nextElement();
               letterGen.generateLetter(customer);
               Template letterTemplate = letterGen.previewLetter();
               Letter letter = new Letter();
               letter.setLinkCustomer(customer);
               letter.setLetter(letterTemplate);
               
               letterVtr.addElement(letter);
           }
   
           generateLetterLst.setListData(letterVtr);

       }
    }

    
    public void addSelectedRowsToSelectedCustomers()
    {
        int rowCount = allCustTbl.getSelectedRowCount();
            CustomerListNode cust;
            if(rowCount == 1)
            {
                int row = allCustTbl.getSelectedRow();
                
                cust = (CustomerListNode)allCustVtr.elementAt(row);
                selectCustVtr.add(cust);
                ((VikingTableMdl)selectCustTbl.getModel()).refreshTable(selectCustVtr,1);
            }
            else if(rowCount > 1)
            {
                int[] rowIndices = allCustTbl.getSelectedRows();
                cust = new CustomerListNode();
                for(int n=0; n< rowIndices.length; n++)
                {
                    cust = (CustomerListNode)allCustVtr.elementAt(rowIndices[n]);
                    selectCustVtr.add(cust);
                    
                }
                ((VikingTableMdl)selectCustTbl.getModel()).refreshTable(selectCustVtr,1);
            }
            else
            {
                JOptionPane.showMessageDialog(null,"You must have a row selected to add the customer.");
            }
    }

    public void valueChanged(javax.swing.event.ListSelectionEvent listSelectionEvent) 
    {
        JList list = (JList)listSelectionEvent.getSource();
        int index = list.getSelectedIndex();//listSelectionEvent.getFirstIndex();
        
        Letter letter = (Letter)letterVtr.elementAt(index);
        generateLetterTextArea.setText(letter.getLetter().getContent()); 
    }    
    
}