public void Execute(string[] data)
{
int customerId = 0;
if (!int.TryParse(data[0], out customerId))
{
throw new ArgumentException($"{data[0]} is not a valid input for customer Id!");
}
int tripId = 0;
if (!int.TryParse(data[1], out tripId))
{
throw new ArgumentException($"{data[1]} is not a valid input for trip Id!");
}
decimal price = 0;
if (!decimal.TryParse(data[2], out price) || price < 0)
{
throw new ArgumentException($"{data[2]} is not a valid input for price!");
}
string seatNumber = data[3];
if (!infoService.CustomerExists(customerId))
{
throw new ArgumentException("No such customer found!");
}
if (!infoService.TripExists(tripId))
{
throw new ArgumentException("No such trip found!");
}
if (!infoService.CustomerHasEnoughMoney(customerId, price))
{
throw new ArgumentException("Customer bank balance is not enough to purchase a ticket!");
}
ticketService.Buy(customerId, tripId, price, seatNumber);
}