import javax.swing.JFrame;
import javax.swing.JOptionPane;
import javax.swing.table.DefaultTableModel;

/**
 * ListPanel displays list of entries in a table and offers buttons
 * for adding, deleting or modifying entries in table and database.
 *
 * @author Lars Appel
 * @version 0.2
 */
public class ListPanel extends javax.swing.JPanel {

  javax.swing.JFrame parentFrame;

  /** Initializes the Form */
  public ListPanel(JFrame f) {
    parentFrame = f;
    initComponents ();
  }

  /**
  * The dataset this panel is to interact with.
  */
  private MasterSet myMaster;

  /**
  * The table that we use to show the list view.
  */
  private javax.swing.JTable listTable;

  /**
  * This customized contructor is used by the application.
  */
  public ListPanel(JFrame parent, MasterSet master) {
    initComponents ();
    parentFrame = parent;
    myMaster = master;
    listTable = new javax.swing.JTable ();
    listTable.setModel (myMaster);
    scrollPane.setViewportView (listTable);
  }

  /** This method is called from within the constructor to
   * initialize the form.
   * WARNING: Do NOT modify this code. The content of this method is
   * always regenerated by the FormEditor.
   */
  private void initComponents () {//GEN-BEGIN:initComponents
    setLayout (new java.awt.BorderLayout ());

    bottomPanel = new javax.swing.JPanel ();
    bottomPanel.setLayout (new java.awt.FlowLayout ());

      addButton = new javax.swing.JButton ();
      addButton.setText ("Add");
      addButton.addActionListener (new java.awt.event.ActionListener () {
          public void actionPerformed (java.awt.event.ActionEvent evt) {
            addButtonActionPerformed (evt);
          }
        }
      );
      bottomPanel.add (addButton);

      modifyButton = new javax.swing.JButton ();
      modifyButton.setText ("View / Modify");
      modifyButton.addActionListener (new java.awt.event.ActionListener () {
          public void actionPerformed (java.awt.event.ActionEvent evt) {
            modifyButtonActionPerformed (evt);
          }
        }
      );
      bottomPanel.add (modifyButton);

      deleteButton = new javax.swing.JButton ();
      deleteButton.setText ("Delete");
      deleteButton.addActionListener (new java.awt.event.ActionListener () {
          public void actionPerformed (java.awt.event.ActionEvent evt) {
            deleteButtonActionPerformed (evt);
          }
        }
      );
      bottomPanel.add (deleteButton);

    add (bottomPanel, "South");

    scrollPane = new javax.swing.JScrollPane ();

    add (scrollPane, "Center");

  }//GEN-END:initComponents

  private void deleteButtonActionPerformed (java.awt.event.ActionEvent evt) {//GEN-FIRST:event_deleteButtonActionPerformed
    // Add your handling code here:
    if (listTable.getSelectedRowCount() > 0) {
      int[] rows = listTable.getSelectedRows();
      for (int k = rows.length - 1; k >= 0; k--) {
        String msg = myMaster.deleteEntry(
          rows[k], (String) listTable.getValueAt(rows[k],0)
        );
        if (msg != null) JOptionPane.showMessageDialog(parentFrame, msg);
      }
    } else {
      JOptionPane.showMessageDialog(parentFrame, "No row(s) selected.");
    }
  }//GEN-LAST:event_deleteButtonActionPerformed

  private EntryDialog myUpdateDialog;

  private void modifyButtonActionPerformed (java.awt.event.ActionEvent evt) {//GEN-FIRST:event_modifyButtonActionPerformed
    // Add your handling code here:
    if (listTable.getSelectedRowCount() == 1) {
      int row = listTable.getSelectedRow();
      String keyValue = (String) listTable.getValueAt(row, 0);
      if (myUpdateDialog == null)
        myUpdateDialog = new EntryDialog(parentFrame, true, myMaster, false);
      myUpdateDialog.fetchData(row, keyValue);
      myUpdateDialog.show();
    } else {
      JOptionPane.showMessageDialog(parentFrame, "Need unique selection.");
    }
  }//GEN-LAST:event_modifyButtonActionPerformed

  private EntryDialog myAddDialog;

  private void addButtonActionPerformed (java.awt.event.ActionEvent evt) {//GEN-FIRST:event_addButtonActionPerformed
    // Add your handling code here:
    listTable.clearSelection();
    if (myAddDialog == null)
      myAddDialog = new EntryDialog(parentFrame, true, myMaster, true);
    myAddDialog.show();
  }//GEN-LAST:event_addButtonActionPerformed


// Variables declaration - do not modify//GEN-BEGIN:variables
  private javax.swing.JPanel bottomPanel;
  private javax.swing.JScrollPane scrollPane;
  private javax.swing.JButton addButton;
  private javax.swing.JButton modifyButton;
  private javax.swing.JButton deleteButton;
// End of variables declaration//GEN-END:variables

}