/**
* @(#)CompanyDriver.java
*
*
* @author
* @version 1.00 2009/3/24
*/

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

public class CompanyDriver extends JFrame implements ActionListener{

    JTextArea main;
    JScrollPane jsp;
    JButton addEmpBtn,addManBtn,delEmpBtn,searchEmpBtn,dispEmpBtn,endBtn,chgGrdBtn,allowBtn,
SalBtn;
    JTextField delEmpJtf,searchEmpJtf,chgGrdJtf,allowJtf,getIdJtf;
    JPanel buttonContainer,bcA,bcB,bcC,bcD;
    Company fedX;

    public CompanyDriver(){
        fedX = new Company();

        main = new JTextArea();
        main.setEditable(false);
        main.append(fedX.menu());
        jsp = new JScrollPane(main);

        buttonContainer = new JPanel(new GridLayout(6,1));
        //initialise Buttons and add to button Container
        buttonContainer.add(addEmpBtn = new JButton("Add Employee"));
        buttonContainer.add(addManBtn = new JButton("Add Manager"));
        bcA = new JPanel();
        bcB = new JPanel();
        bcC = new JPanel();
        bcD = new JPanel();

        bcA.add(delEmpJtf = new JTextField(2));
        bcA.add(delEmpBtn = new JButton("Remove Employee"));

        bcB.add(searchEmpJtf = new JTextField(2));
        bcB.add(searchEmpBtn = new JButton("Search Employee"));

        bcC.add(chgGrdJtf = new JTextField(2));
        bcC.add(chgGrdBtn = new JButton("Change Grade"));
        bcC.add(getIdJtf = new JTextField(2));

        bcD.add(allowJtf = new JTextField(2));
        bcD.add(allowBtn = new JButton("Add Allowance"));
        buttonContainer.add(bcA);
        buttonContainer.add(bcB);
        buttonContainer.add(bcC);
        buttonContainer.add(dispEmpBtn = new JButton("Display All Employee(s)"));
        buttonContainer.add(bcD);
        buttonContainer.add(SalBtn = new JButton("Increase Salary"));
        buttonContainer.add(endBtn = new JButton("Exit Program"));

        getContentPane().add(main);
        getContentPane().add(buttonContainer,"East");

        setDefaultCloseOperation(EXIT_ON_CLOSE);
        setSize(500,250);
        setVisible(true);
        setTitle("Company Creator");


        addEmpBtn.addActionListener(this);
        addManBtn.addActionListener(this);
        delEmpBtn.addActionListener(this);
        searchEmpBtn.addActionListener(this);
        chgGrdBtn.addActionListener(this);
        dispEmpBtn.addActionListener(this);
        allowBtn.addActionListener(this);
        SalBtn.addActionListener(this);
        endBtn.addActionListener(    new ActionListener(){
                public void actionPerformed(ActionEvent e){
                    System.exit(0);
                }});

        //add listener to close program fully when closed..
        addWindowListener(
         new WindowAdapter( ) {
            public void windowClosing( WindowEvent e )
               {
              System.exit( 0 );
               }
         }
          );
    }

    public void actionPerformed(ActionEvent e){
        if(e.getActionCommand() == addEmpBtn.getText()){ //if add Employee button is pressed
            new AddStaff(0);
        }
        else if(e.getActionCommand() == addManBtn.getText()){ //if add Employee button is pressed
            new AddStaff(1);
        }
        else if(e.getActionCommand() == delEmpBtn.getText()){ //if delete Employee button is pressed
            int delId = Integer.parseInt(delEmpJtf.getText());
            if(fedX.searchEmployee(delId) != null){
                main.setText("Deleting "+fedX.searchEmployee(delId));
                fedX.deleteEmployee(delId);
            }
            else{
                main.setText("User not found, delete failed");
            }



        }
        else if(e.getActionCommand() == searchEmpBtn.getText()){ //if search Employee button is pressed
        int serId = Integer.parseInt(searchEmpJtf.getText());
            if(fedX.searchEmployee(serId) != null){
                main.setText("User found\n "+fedX.searchEmployee(serId));
            }
            else{
                main.setText("Unable to find User");
            }
        }
        else if(e.getActionCommand() == chgGrdBtn.getText()){ //Change Grade button is pressed
            int chgId = Integer.parseInt(chgGrdJtf.getText());
                if(fedX.searchEmployee(chgId) != null){
                char grade = chgGrdJtf.getText().charAt(0);
                char id = getIdJtf.getText().charAt(0);
                    main.setText("changing grade\n "+fedX.searchEmployee(chgId));

                }
                else{
                    main.setText("Please Enter a Valid ID");
                }
            }


        else if(e.getActionCommand() == dispEmpBtn.getText()){ //if display all Employee button is pressed
            if(fedX.getEmpCount()>0){
                main.setText(fedX.displayAllEmployee());
            }
            else{
                main.setText("Database has no Employee yet");
            }
        }

        main.append("\n"+fedX.menu());

    }


    class AddStaff extends JFrame implements ActionListener{
        //set labels
        String[] labels = {"First Name","Last Name","Salary","Grade","Department"        };
        //Type:
        // 0 = Employee
        // 1 = Manager
        int type;
            JTextField[] jtf = new JTextField[5];
            JLabel[] jlb = new JLabel[5];
        public AddStaff(int typ){
            this.type = typ;
            JPanel jp1 = new JPanel(new GridLayout(6,2));


            for(int i = 0;i<5;i++){
                jtf[i] = new JTextField(10);//initialise textfield
                jlb[i] = new JLabel(labels[i]);//initialise labels according to labels
                if(i<4){ //insert for all employees
                jp1.add(jlb[i]);//insert label first
                jp1.add(jtf[i]);//insert textfield
                }
                if(type==1 && i == 4){//if is manager, include this field
                    jp1.add(jlb[i]);
                    jp1.add(jtf[i]);
                }
            }
            JButton okBtn = new JButton("Ok");
            JButton cancel = new JButton("Cancel");
            jp1.add(okBtn);
            jp1.add(cancel);
            getContentPane().add(jp1);

            if(type == 0)
                setTitle("Add Employee");
            else if(type == 1)
                setTitle("Add Manager");
            setSize(200,200);
            setVisible(true);

            cancel.addActionListener(    new ActionListener(){
                public void actionPerformed(ActionEvent e){
                    setVisible(false);
                }});
            okBtn.addActionListener(this);
        }
        public void actionPerformed(ActionEvent e){
            if(type == 0){
                //required field is string, string, double, char
                fedX.addEmployee(jtf[0].getText(),jtf[1].getText(),Double.parseDouble(jtf[2].getText()),jtf[3].getText().charAt(0));
                main.setText("Employee Added");
            }
            if(type == 1){
                fedX.addManager(jtf[0].getText(),jtf[1].getText(),Double.parseDouble(jtf[2].getText()),jtf[3].getText().charAt(0),jtf[4].getText());
                main.setText("Manager Added");
            }
            setVisible(false);
        }
    }
    public static void main(String[] args){
        new CompanyDriver();
    }



}

else if(e.getActionCommand() == chgGrdBtn.getText()){ //Change Grade button is pressed
            int chgId = Integer.parseInt(chgGrdJtf.getText());
                if(fedX.searchEmployee(chgId) != null){
                char grade = chgGrdJtf.getText().charAt(0);
                char id = getIdJtf.getText().charAt(0);
                    main.setText("changing grade\n "+fedX.searchEmployee(chgId));

                }
                else{
                    main.setText("Please Enter a Valid ID");
                }
            }

System.out.println(e.getActionCommand());
System.out.println(chgGrdBtn.getText());