////////////////////////////////////////////////////////////////////////////////////////////
//PIMS: Personal Invstment Management System
//Class : Delete alerts.
//This class provides the GUI to assist the user to delete the alerts
////////////////////////////////////////////////////////////////////////////////////////////


import java.awt.*;
import java.applet.*;
import java.awt.event.*;
import javax.swing.*;
import javax.swing.tree.*;
import javax.swing.plaf.*;
import java.lang.*;
import java.io.*;
import javax.swing.table.*;
import java.util.*;

public class DeleteAlert extends JFrame implements ActionListener{

	private Alerts AL;

	private JTable table;
	private String alertlist[][];
	private String fieldHeads[];
	private JScrollPane jsp3;
	private Container contentPane;
	private int numAlerts=0;

	public DeleteAlert(Alerts AL)throws Exception{

		this.AL = AL;

		contentPane=getContentPane();
		contentPane.setLayout(new BorderLayout());
		Panel p=new Panel();
		Button b1=new Button("Close");
		Button b3=new Button("Delete");
		b1.addActionListener(this);
		b3.addActionListener(this);

		p.add(b1);
		p.add(b3);

		alertlist = AL.readAlerts();
		while(alertlist[numAlerts][0]!=null)
			numAlerts++;
		fieldHeads=new String[2];
		fieldHeads[0]="Date";
		fieldHeads[1]="Alert";

		TableModel dataModel = new AbstractTableModel() {
			public String getColumnName(int col){
				return fieldHeads[col];//fieldHeads[col];//actualFieldHeads[col];
			}
			public int getColumnCount(){
				return fieldHeads.length;//fieldHeads.length;//actualFieldHeads.length;
			}
			public int getRowCount(){
				return numAlerts;//length;//numOfFalse;
			}
			public Object getValueAt(int row, int col){
				return alertlist[row][col];//trans[row][col];//actualTrans[row][col];
			}
			public boolean isCellEditable(int row,int col){
				return false;
			}

		};
		//dataModel.setBackground(Color.white);
		table = new JTable(dataModel);
		table.setBackground(Color.white);
		int v=ScrollPaneConstants.VERTICAL_SCROLLBAR_AS_NEEDED;
		int h=ScrollPaneConstants.HORIZONTAL_SCROLLBAR_AS_NEEDED;

		jsp3=new JScrollPane(table,v,h);
		jsp3.setBackground(Color.white);
		//panel.add(jsp2,BorderLayout.NORTH);
		contentPane.add(jsp3,BorderLayout.CENTER);
		contentPane.add(p,BorderLayout.SOUTH);
		contentPane.setVisible(true);
		setSize(250,400);
		setLocation(200,200);
		setTitle("Delete Alert");
		setVisible(true);

	}
	public void actionPerformed(ActionEvent ae){
		String str=ae.getActionCommand();

		if(str.equals("Close")){
			this.setVisible(false);
			return;
		}
		if(str.equals("Delete")){
			int selectedRow = table.getSelectedRow();
			if(selectedRow==-1){
				new Error("Select some alert");
				return;
			}
			try{
			AL.deleteAlert(selectedRow);
			setVisible(false);
			new DeleteAlert(AL);
			}
			catch(Exception e){
				new Error("Problem in deleting alert");
				return;
			}
		}

	}
}