/*
 * CategoryAndItemManager.java
 */

package grader.UI.gradebook;

import grader.UI.GraderApp;

import javax.swing.*;
import javax.swing.table.*;

import java.awt.Component;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;

/**
 *
 * @author  Tyler
 * Note: A portion of the code was not written by myself. This includes
 * The portion that deals with allowing buttons to be within a table.
 * Rather, I found this hack online and utilized it within this GUI prototype.
 * I do not take credit for that portion of the code.
 * The hack can be found at: http://www.java2s.com/Code/Java/Swing-Components/ButtonTableExample.htm
 */
public class CategoryAndItemManager extends JDialog {

    private JButton jButton1;
    private JButton jButton2;
    private JButton jButton3;
    private JButton jButton4;
    private JScrollPane jScrollPane1;
    private JTable jTable1;
    private java.awt.Frame frame;
    
    //Create a new Category and Item Manager
    public CategoryAndItemManager(){
    	this(new java.awt.Frame(), false);
    }
    public CategoryAndItemManager(java.awt.Frame parent, boolean modal) {
        super(parent, modal);
        
        setTitle("Category and Item Manager");
        setResizable(false);

        jButton1 = new JButton();
        jButton1.setText("New Category");
        jButton1.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton1ActionPerformed(evt);
            }
        });

        jButton2 = new JButton();
        jButton2.setText("New Item");
        jButton2.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jButton2ActionPerformed(evt);
            }
        });

        jButton3 = new JButton();
        jButton3.setText("Cancel");
        jButton3.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jCloseActionPerformed(evt);
            }
        });

        jButton4 = new JButton();
        jButton4.setText("Save");
        jButton4.addActionListener(new java.awt.event.ActionListener() {
            public void actionPerformed(java.awt.event.ActionEvent evt) {
                jCloseActionPerformed(evt);
            }
        });
        
        jTable1 = new JTable();
        jTable1.setModel(new javax.swing.table.DefaultTableModel(
            new Object [][] {
                {"Edit", "Category", "HW", 15, 15, "Add", "X"},
                {"Edit", "Category", "Quizzes", 20, 20, "Add", "X"},
                {"Edit", "Category", "Projects", 20, 20, "Add", "X"},
                {"Edit", "Category", "Tests", 30, 30, "Add", "X"},
                {"Edit", "Item", "Participation", 10, 10, null, "X"},
                {"Edit", "Item", "Brownie Points", 5, 5, null, "X"}
            },
            new String [] {
                "Edit", "Type", "Name", "Weight", "Overal Weights", "Subs", "Delete"
            }
        ) {
            Class[] types = new Class [] {
                java.lang.Object.class, java.lang.String.class, java.lang.String.class, java.lang.Integer.class, java.lang.Integer.class, java.lang.Object.class, java.lang.Object.class
            };
            boolean[] canEdit = new boolean [] {
                true, false, false, true, false, true, true
            };

            public Class getColumnClass(int columnIndex) {
                return types [columnIndex];
            }

            public boolean isCellEditable(int rowIndex, int columnIndex) {
                return canEdit [columnIndex];
            }
        });
        //Place buttons in the 3 different columns
        jTable1.getColumn("Edit").setCellRenderer(new ButtonRenderer());
        jTable1.getColumn("Edit").setCellEditor(new ButtonEditor(new JCheckBox()));
        jTable1.getColumn("Subs").setCellRenderer(new ButtonRenderer());
        jTable1.getColumn("Subs").setCellEditor(new ButtonEditor(new JCheckBox()));
        jTable1.getColumn("Delete").setCellRenderer(new ButtonRenderer());
        jTable1.getColumn("Delete").setCellEditor(new ButtonEditor(new JCheckBox()));
        
        jTable1.setRowHeight(32);
        jTable1.setRowSelectionAllowed(false);
        jTable1.setSelectionMode(ListSelectionModel.SINGLE_SELECTION);
        
        jScrollPane1 = new JScrollPane();
        jScrollPane1.setViewportView(jTable1);
        
        //Organize the GUI layout
        GroupLayout layout = new GroupLayout(getContentPane());
        getContentPane().setLayout(layout);
        layout.setHorizontalGroup(
            layout.createParallelGroup(GroupLayout.Alignment.LEADING)
            .addGroup(layout.createSequentialGroup()
                .addContainerGap()
                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.LEADING)
                    .addComponent(jScrollPane1, GroupLayout.Alignment.TRAILING, GroupLayout.DEFAULT_SIZE, 601, Short.MAX_VALUE)
                    .addGroup(layout.createSequentialGroup()
                        .addComponent(jButton1)
                        .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButton2)
                        .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED, 206, Short.MAX_VALUE)
                        .addComponent(jButton4)
                        .addPreferredGap(LayoutStyle.ComponentPlacement.RELATED)
                        .addComponent(jButton3)))
                .addContainerGap())
        );
        layout.setVerticalGroup(
            layout.createParallelGroup(GroupLayout.Alignment.LEADING)
            .addGroup(GroupLayout.Alignment.TRAILING, layout.createSequentialGroup()
                .addContainerGap()
                .addComponent(jScrollPane1, GroupLayout.DEFAULT_SIZE, 192, Short.MAX_VALUE)
                .addPreferredGap(LayoutStyle.ComponentPlacement.UNRELATED)
                .addGroup(layout.createParallelGroup(GroupLayout.Alignment.BASELINE)
                    .addComponent(jButton3)
                    .addComponent(jButton4)
                    .addComponent(jButton1)
                    .addComponent(jButton2))
                .addContainerGap())
        );
        pack();
    }
    
    private void jButton1ActionPerformed(ActionEvent evt) {
        AddCategory ac = new AddCategory(GraderApp.getApplication().getMainFrame(), true);
        ac.show();
    }
    
    private void jButton2ActionPerformed(java.awt.event.ActionEvent evt) {
        AddItem ai = new AddItem(GraderApp.getApplication().getMainFrame(), true);
        ai.show();
    }
    
    private void jCloseActionPerformed(java.awt.event.ActionEvent evt) {
        this.hide();
        this.dispose();
    }

    public static void main(String args[]) {
        java.awt.EventQueue.invokeLater(new Runnable() {
            public void run() {
                new CategoryAndItemManager(new java.awt.Frame(), false).setVisible(true);
            }
        });
    }
}

//These classes are used to place buttons within the table
//This is somewhat of a hack.
//Note: I did not write this code. Rather, I found this hack online
//and utilized it within this GUI prototype
class ButtonRenderer extends JButton implements TableCellRenderer {

  public ButtonRenderer() {
    setOpaque(true);
  }

  public Component getTableCellRendererComponent(JTable table, Object value,
      boolean isSelected, boolean hasFocus, int row, int column) {
    if (isSelected) {
      setForeground(table.getSelectionForeground());
      setBackground(table.getSelectionBackground());
    } else {
        if(value != null && !((String)value).isEmpty())
        {
          setForeground(table.getForeground());
          setBackground(UIManager.getColor("Button.background"));
        }
        else
        {
            setForeground(java.awt.Color.WHITE);
            setBackground(java.awt.Color.WHITE);
        }
    }
    setText((value == null) ? "" : value.toString());
    return this;
  }
}

class ButtonEditor extends DefaultCellEditor {
  protected JButton button;
  protected int row;
  protected JTable table;

  private String label;

  private boolean isPushed;

  public ButtonEditor(JCheckBox checkBox) {
    super(checkBox);
    button = new JButton();
    button.setOpaque(true);
    button.addActionListener(new ActionListener() {
      public void actionPerformed(ActionEvent e) {
        fireEditingStopped();
      }
    });
  }

  public Component getTableCellEditorComponent(JTable table, Object value,
      boolean isSelected, int row, int column) {
      this.table = table;
      this.row = row;
    if (isSelected) {
      button.setForeground(table.getSelectionForeground());
      button.setBackground(table.getSelectionBackground());
    } else {
      button.setForeground(table.getForeground());
      button.setBackground(table.getBackground());
    }
    label = (value == null) ? "" : value.toString();
    
    isPushed = true;
    return button;
  }

  public Object getCellEditorValue() {
    if (isPushed && !label.isEmpty()) {
        if(label.equals("Edit")) {
            if(table.getValueAt(row, 1).equals("Category")) {
                EditCategory ec = new EditCategory(GraderApp.getApplication().getMainFrame(), true);
                ec.jTextArea1.setText("This category is very important for the total grade.");
                ec.jTextField1.setText((String)table.getValueAt(row, 2));
                ec.jTextField2.setText("45");
                ec.setLocationRelativeTo(GraderApp.getApplication().getMainFrame());
                GraderApp.getApplication().show(ec);
//                ec.show();
            }
            else if(table.getValueAt(row, 1).equals("Item")) {
                EditItem ei = new EditItem(GraderApp.getApplication().getMainFrame(), true);
                ei.jTextArea1.setText("This item is a small part of the student's grade");
                ei.jTextField1.setText((String)table.getValueAt(row, 2));
                ei.setLocationRelativeTo(GraderApp.getApplication().getMainFrame());
                GraderApp.getApplication().show(ei);
//                ei.show();
            }
        }
        else if (label.equals("Add")) {
                System.out.println("Add pressed");
        }
        else if (label.equals("X")) {
                System.out.println("Delete pressed");
        }
    }
    isPushed = false;
    return new String(label);
  }

  public boolean stopCellEditing() {
    isPushed = false;
    return super.stopCellEditing();
  }

  protected void fireEditingStopped() {
    super.fireEditingStopped();
  }
}