private void AddExpenseBtn_Click(object sender, EventArgs e)
{
string expenseTitle = ExpenseTitleTbx.Text;
string expenseNotes = ExpenseNotesRtbx.Text;
decimal expensePrice = ExpensePriceNum.Value;
int expenseQuantity = Convert.ToInt32(ExpenseQuantityNum.Value);
if (string.IsNullOrEmpty(ExpenseTitleTbx.Text))
{
throw new ApplicationException("Please, specify a title.");
}
if (expensePrice <= 0)
{
throw new ApplicationException("Please, specify a positive price.");
}
Expense expense = Expense.Create(expenseTitle, expensePrice, expenseQuantity,
string.IsNullOrWhiteSpace(expenseNotes) ? null : expenseNotes);
// Share expeses with all users by default
foreach (User user in User.Enumerate())
{
if (user != Server.CurrentSession.Info)
{
expense.AddParticipant(user.Id);
}
}
AddExpenseToUI(expense);
}
public void CalculateBill()
{
Participant p1 = new Participant();
p1.AddCharge(10.00);
p1.AddCharge(20.00);
Participant p2 = new Participant();
p2.AddCharge(15.00);
p2.AddCharge(15.01);
p2.AddCharge(3.00);
p2.AddCharge(3.01);
Participant p3 = new Participant();
p3.AddCharge(5.00);
p3.AddCharge(9.00);
p3.AddCharge(4.00);
Expense e = new Expense();
e.AddParticipant(p1);
e.AddParticipant(p2);
e.AddParticipant(p3);
List <Expense> eList = new List <Expense> {
e
};
ICalculator c = new ExpenseCalculator(eList);
c.Calculate();
Assert.AreEqual(Math.Round(eList[0].Participants[0].Balance, 2), -1.99);
Assert.AreEqual(Math.Round(eList[0].Participants[1].Balance, 2), -8.01);
Assert.AreEqual(Math.Round(eList[0].Participants[2].Balance, 2), 10.01);
}
private void ProcessExpense()
{
try
{
//Check if token is correct
if (_lookaheadFirst.TokenType == TokenType.Quantity)
{
//Get quantity of participants
int participantsQtt = int.Parse(_lookaheadFirst.Value);
//Add new expense
Expense expense = new Expense();
_expenses.Add(expense);
//Discart current token
DiscardToken();
//Process participants
for (int i = 0; i < participantsQtt; i++)
{
Participant p = new Participant();
ProcessParticipant(p);
expense.AddParticipant(p);
}
//Try to process new expense
ProcessExpense();
}
else if (_lookaheadFirst.TokenType == TokenType.Zero)
{
//End of file
return;
}
else if (_tokenSequence.Count == 0)
{
throw new InvalidEndOfFileException();
}
else
{
throw new InvalidTokenException(_line, _lookaheadFirst.Value, "Number of participants or 0 to end file");
}
}
catch (Exception)
{
throw;
}
}
private void AddExpenseBtn_Click(object sender, EventArgs e)
{
if (String.IsNullOrEmpty(ExpenseTitleTbx.Text))
{
MessageBox.Show("Please enter expense title");
return;
}
string expenseTitle = ExpenseTitleTbx.Text;
string expenseNotes = ExpenseNotesRtbx.Text;
decimal expensePrice = 0;
int expenseQuantity = 1;
try
{
expensePrice = ExpensePriceNum.Value;
expenseQuantity = Convert.ToInt32(ExpenseQuantityNum.Value);
}
catch (Exception)
{
MessageBox.Show("Please enter a correct number");
return;
}
Expense expense = Expense.Create(expenseTitle, expensePrice, expenseQuantity, expenseNotes);
// Share expeses with all users by default
foreach (User user in User.Enumerate())
{
if (user != Server.CurrentSession.Info)
{
expense.AddParticipant(user.Id);
}
}
CalculateAndPopulateExpenses();
MessageBox.Show("You successfully created the expense!");
}