/*Ihsan
 * StudentGUI.java (GUI, and file reading only)
 * Input (well, set path to) a .txt file
 * Processes how to display all the names on the JTextArea;
 * Outputs the GUI, and student names;
 */


import java.io.*;
import java.util.*;
import java.awt.*;
import javax.swing.*;
import java.awt.event.*;

class Student {
    String fName;
    String lName;
    int grade;
}
    
  
public class StudentGui2 extends JFrame implements ActionListener
{
    JTextArea studentsOut;
    JLabel jl_fName,jl_lName, jl_mName, jl_grade, jl_blank;
    JTextField jt_fName,jt_lName,jt_mName, jt_grade,jt_editStudentRecNumber;
    JPanel jp_right,jp_editStudent;
    JButton jb_addStudent,jb_editStudent;
    
    StringTokenizer token;
    String firstName;
    String midName;
    String lastName;
    String fileName = "students.txt";
    int grade;
    
    Vector students = new Vector();  

    public StudentGui2() //CONSTRUCTOR
    {
        setTitle("View, Enter and Edit Students");
        studentsOut = new JTextArea(150, 20);
        studentsOut.setEditable(false);
        
        jp_right=new JPanel();
        jp_right.setLayout(new BoxLayout(jp_right,BoxLayout.Y_AXIS));
        
        jp_editStudent=new JPanel();
        jp_editStudent.setLayout(new BoxLayout(jp_editStudent,BoxLayout.X_AXIS));
        
        //LABEL ASSIGNMENTS
        jl_fName = new JLabel ("First Name");
        jl_lName = new JLabel ("Last Name");
        jl_mName = new JLabel ("Middle Name");
        jl_grade = new JLabel ("Grade");
        //jl_blank, not used yet
        
        //TEXT FIELD DETAILS
        jt_fName=new JTextField(10);
        jt_lName = new JTextField (10);
        jt_mName = new JTextField (10);
        jt_grade = new JTextField (2);
        jt_editStudentRecNumber = new JTextField (20);
        
        //BuTTON ASSIGNMENTS
        jb_addStudent=new JButton("Add Student");
        jb_addStudent.addActionListener(this);
        jb_addStudent.setActionCommand("add");
  
        jb_editStudent = new JButton ("Edit Student");
        jb_editStudent.addActionListener(this);
        jb_editStudent.setActionCommand("remove");
        
        //PANEL ASSIGNMENTS
        jp_right.add(jl_fName);
        jp_right.add(jt_fName);
        jp_right.add(jl_mName);
        jp_right.add(jt_mName); 
        jp_right.add(jl_lName);
        jp_right.add(jt_lName);
        jp_right.add(jl_grade);
        jp_right.add(jt_grade);
        jp_right.add(jb_addStudent);
        jp_editStudent.add(jt_editStudentRecNumber);
        jp_editStudent.add(jb_editStudent);
        jp_right.add(jp_editStudent);
         
        getContentPane().setLayout(new BoxLayout(getContentPane(),BoxLayout.X_AXIS));
        getContentPane().add(studentsOut);
        getContentPane().add(jp_right);  
    } 
    
    public void actionPerformed(ActionEvent evt) {} //Blank for now 
    
    //this is a new method in StudentGui; make sure you call it (probably from main());
    public boolean readStudents()
    {
        Student newStudent,demoStudent;
        
        try
        {
            BufferedReader inFile = new BufferedReader (new FileReader("students2.txt"));
            String line;
            
            line = inFile.readLine();
            
            while(line != null)            
            {                
                System.out.println("One time through");
                newStudent=new Student();
                
                token = new StringTokenizer(line, ";");//string tokenizer
                System.out.println("The token is: " + token);
                
                newStudent.fName = token.nextToken();   
                System.out.println("The token is: " + newStudent.fName);
                newStudent.lName = token.nextToken();               
                newStudent.grade = Integer.parseInt(token.nextToken());   
                
                System.out.println(newStudent.fName + " " + newStudent.lName + " " + newStudent.grade);
                students.add(newStudent);
                
                
                         
                line = inFile.readLine();
            }     
            inFile.close();
        }
        catch(IOException e)
        {
            System.out.println("Error reading file.");
            return false;
        }  
        
        demoStudent=(Student)students.get(0);
        
        System.out.println("result" + demoStudent.lName); //demo of how to get the last name of the 2nd(!) person from the vector list
        
        /*for (int i = 0;i < studentsFName.size();i++)
        {
            studentsOut.append((String)studentsFName.elementAt(i));
            studentsOut.append(", ");
            studentsOut.append((String)studentsMName.elementAt(i));
            studentsOut.append(", ");
            studentsOut.append((String)studentsLName.elementAt(i));
            studentsOut.append(", ");
            studentsOut.append(studentsGrade.elementAt(i).toString());
            studentsOut.append("\n");
        }*/
        return true;
    }

    public static void main (String[] args)
    {
        StudentGui2 student1= new StudentGui2();
        
        student1.setSize(500, 300);
        student1.setResizable(false);
        student1.setVisible(true); 
        student1.readStudents();
        student1.setDefaultCloseOperation(EXIT_ON_CLOSE);
    }
}