Topic6Final.cs

using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using System.Windows.Forms;

namespace Topic6
{
    public partial class Topic6Final : Form
    {
        String enteredTxt = "";
        Boolean inputPermit, withdrawing, reciept, confirm,deny;
        Accounts current = null;
        List<Accounts> accountList = new List<Accounts>();
        public Topic6Final()
        {
            InitializeComponent();
            accountList.Add(new Accounts("1234", 500000));
            accountList.Add(new Accounts("5678", 100000));
            accountList.Add(new Accounts("9999", 150000));
            accountList.Add(new Accounts("6969", 200000));
            inputPermit = true;
        }

        public void updateDisplay()
        {
            txtOutput.Text = enteredTxt;
        }

        public Accounts FindAccount(String enteredText)
        {

            //if (a1.checkPin(enteredText))
            //    return a1;
            //if (a2.checkPin(enteredText)) 
            //    return a2;
            //if (a3.checkPin(enteredText))
            //    return a3;
            //if (a4.checkPin(enteredText))
            //    return a4;
            foreach (Accounts account in accountList)
            {
                if (account.checkPin(enteredText))
                    return account;
            }
            return null;
        }

        private void buttonBAL_Click(object sender, EventArgs e)
        {
            if (current == null)
                return;
            label2.Text = "The balance is = "+current.getBalance();
        }

        private void buttonWIT_Click(object sender, EventArgs e)
        {
            if (current == null)
                return;
            txtOutput.Text = "Enter amount here";
            enteredTxt = "";
            inputPermit = true;
            withdrawing = true;
            reciept = false;
            //MessageBox.Show("Press CONFIRM to go ahead with the transaction\nPress DENY to cancel the transaction.");
        }

        private void buttonWITR_Click(object sender, EventArgs e)
        {
            if (current == null)
                return;
            txtOutput.Text = "Enter amount here";
            inputPermit = true;
            enteredTxt = "";
            withdrawing = true;
            reciept = true;
            //MessageBox.Show("Press CONFIRM to go ahead with the transaction\nPress DENY to cancel the transaction.");
        }

        private void buttonCON_Click(object sender, EventArgs e)
        {
            if (enteredTxt == "") 
                confirm = false;
            else
                confirm = true;
            if (confirm == true)
            {

                inputPermit = false;
                if (current == null)
                {
                    current = FindAccount(enteredTxt);
                }
                if (current != null)
                {
                    if (withdrawing)
                    {
                        if (reciept)
                        {
                            if (current.withdraw(int.Parse(enteredTxt)))
                            {
                                enteredTxt = "The transaction was successfull.";
                                updateDisplay();
                                enteredTxt = "";
                                label2.Text = "The balance is = " + current.getBalance();
                                MessageBox.Show(current.getLastTransaction());
                            }
                            else
                            {
                                enteredTxt = "The transaction was unsucessfull.";
                                updateDisplay();
                                enteredTxt = "";
                                return;
                            }
                        }
                        else
                        {                            
                            if (current.withdraw(int.Parse(enteredTxt)))
                            {
                                enteredTxt = "The transaction was successfull.";
                                updateDisplay();
                                enteredTxt = "";
                                label2.Text = "The balance is = " + current.getBalance();
                            }
                            else
                            {
                                enteredTxt = "The transaction was unsucessfull.";
                                updateDisplay();
                                enteredTxt = "";
                                return;
                            }
                        }
                    }
                    else
                    {
                        enteredTxt = "Logged in - Choose a transaction.";
                        updateDisplay();
                        enteredTxt = "";
                    }
                }
                else
                {
                    txtOutput.Text = "Invalid PIN";
                    inputPermit = true;
                    enteredTxt = "";
                }
            }
            else
                return;
        }

        private void buttonDEN_Click(object sender, EventArgs e)
        {
            if (current == null)
                return;
            if (enteredTxt == "")
                deny = false;
            else
                deny = true;
            if (deny)
            {
                txtOutput.Text = "The transaction was cancelled.\nChoose another transaction.";
                enteredTxt = "";
                inputPermit = false;
            }
            else
                return;
        }

        private void buttonEXIT_Click(object sender, EventArgs e)
        {
            label2.Text = "Enter PIN here.";
            enteredTxt = "";
            withdrawing = false; reciept = false; confirm = false;
            current = null; updateDisplay();
        }

        private void button7_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "7";
            updateDisplay();
        }

        private void button8_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "8";
            updateDisplay();
        }

        private void button9_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "9";
            updateDisplay();
        }

        private void button4_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "4";
            updateDisplay();
        }

        private void button5_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "5";
            updateDisplay();
        }

        private void button6_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "6";
            updateDisplay();
        }

        private void button1_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "1";
            updateDisplay();
        }

        private void button2_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "2";
            updateDisplay();
        }

        private void button3_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "3";
            updateDisplay();
        }

        private void buttonA_Click(object sender, EventArgs e)
        {

        }

        private void button0_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt += "0";
            updateDisplay();
        }

        private void buttonC_Click(object sender, EventArgs e)
        {
            if (inputPermit == false)
                return;
            enteredTxt = "";
            updateDisplay();
        }
    }
}