/// <summary>
/// Finding a suitable ticket type and the cost differnce from original ticket type.
/// Iterate the ticket types until finding a ticket type that validates the vehicle.
/// </summary>
/// <param name="vehicle"></param>
/// <param name="rank"></param>
/// <returns></returns>
public CheckInResult FindMatchingTicket(Vehicle vehicle, TicketRank rank)
{
TicketType coresspondTicket = TicketTypes[rank];
int initialCost = coresspondTicket.Price;
// find corresponding ticketType
do
{
rank++;
coresspondTicket = TicketTypes[rank];
} while (TicketTypes.ContainsKey(rank) && !coresspondTicket.IsVehicleSuitable(vehicle));
if (!TicketTypes.ContainsKey(rank))
{
rank = TicketRank.Undefined;
}
return(new CheckInResult(rank.ToString(), coresspondTicket.Price - initialCost, false, -1, vehicle.VehicleName));
}