// Click create new transaction
private void button4_Click(object sender, EventArgs e)
{
// If there hasn't been a room selected, throw an exception and exit
if (this.roomListBox.SelectedIndex == -1)
{
ExceptionInterface excep = new ExceptionInterface("Please select a room and try again");
excep.Show();
return;
}
// If there hasn't been a date range selected, throw an exception and exit
if (roomReservationCalendar.SelectionStart == null || roomReservationCalendar.SelectionEnd == null)
{
ExceptionInterface excep = new ExceptionInterface("Please select a date range and try again");
excep.Show();
return;
}
// Parse room id from selected item
string item = roomListBox.SelectedItem.ToString();
int roomId = Convert.ToInt32(item.Substring(0, item.IndexOf(' ')));
// Get start and end dates from calendar
DateTime startDate = roomReservationCalendar.SelectionStart;
DateTime endDate = roomReservationCalendar.SelectionEnd;
Dictionary <int, Reservation> reservations = this.hms.getReservationsByRoom(roomId); // Fetch all existing reservations for the room
// Check selected range against all reservations. If there's an overlap, throw an exception and exit
foreach (var pair in reservations)
{
if (!(DateTime.Compare(endDate, pair.Value.getStartDate()) <= 0 || DateTime.Compare(startDate, pair.Value.getEndDate()) >= 0))
{
// If the dates overlap, throw an exception and exit
ExceptionInterface excep = new ExceptionInterface("Selected reservation overlaps with another. Please try again");
excep.Show();
return;
}
}
// Spawn the transaction interface and give it everything it needs to continue the use case
TransactionInterface transactionInterface = new TransactionInterface(this.customer, this.hms.getRoomData()[roomId], startDate, endDate);
transactionInterface.Show(); // Show a transaction interface
this.customer = hms.getCustomerData()[this.customer.getId()];
}
// On load
private void EmployeeInterface_Load(object sender, EventArgs e)
{
hms = new HotelManagementSystem(); // Instantiate hms
customers = hms.getCustomerData(); // Get a list of all customers
foreach (var pair in customers) // Add each to the listbox for customers
{
customerListBox.Items.Add($"{pair.Value.getId()} - {pair.Value.getName()} - {pair.Value.getDateOfBirth()}");
}
hotels = hms.getHotelData(); // Get a list of all hotels
foreach (var pair in hotels) // Add each to the listbox for hotels
{
hotelListBox.Items.Add($"{pair.Value.getId()} - {pair.Value.getName()} - {pair.Value.getStreetAddress()}, {pair.Value.getCity()}, {pair.Value.getState()}");
managementHotelListBox.Items.Add($"{pair.Value.getId()} - {pair.Value.getName()} - {pair.Value.getStreetAddress()}, {pair.Value.getCity()}, {pair.Value.getState()}");
}
}