/// <summary>
/// Resolve customer given arguments
/// </summary>
/// <param name="args">Parsed user-input arguments</param>
/// <returns>Resolved customer or throws an exception</returns>
private Customer ResolveCustomer(List <string> args)
{
CRM crm = repository.Get();
int customerID = int.Parse(args[Index_To_Remove]);
return(crm.GetCustomer(customerID));
}
private void AddCustomer(List <string> args)
{
CRMRepository crmRepository = (CRMRepository)repository;
args.Insert(0, crmRepository.GetNextID().ToString()); // Add new ID to arguments
Customer newCustomer = (Customer)CreateEntity(args);
CRM crm = repository.Get();
crm.AddCustomer(newCustomer);
Console.WriteLine("Added new customer {0} {1} (ID = {2}) to the MRRC CRM.", newCustomer.firstName, newCustomer.lastName, newCustomer.ID);
Console.WriteLine();
}
/// <summary>
/// Validate business logic surrounding customers
/// </summary>
/// <param name="existingCustomer">Customer to update parameters on</param>
/// <param name="validatedCustomer">Customer to update parameters from</param>
private void ValidateConstraints(Customer existingCustomer, Customer validatedCustomer)
{
CRM crm = repository.Get();
if (validatedCustomer.ID != existingCustomer.ID)
{
Customer newIdCustomer = crm.FindCustomer(validatedCustomer.ID);
if (newIdCustomer != null)
{
throw new CustomerAlreadyExistsException(string.Format("Customer with ID {0} already exists. Please choose a different ID.",
existingCustomer.ID));
}
}
}
/// <summary>
/// Rents a vehicle based on user input
/// </summary>
/// <param name="args">List of user-input arguments</param>
protected override void Execute(List <string> args)
{
// Setup variables
int customerID = int.Parse(args[0]);
string vehicleRego = args[1];
int days = int.Parse(args[2]);
FleetRepository fleetRepository = (FleetRepository)repository;
Fleet fleet = fleetRepository.Get();
CRM crm = crmRepository.Get();
// Resolve
Vehicle vehicle = fleet.GetVehicle(vehicleRego);
Customer customer = crm.GetCustomer(customerID);
// Inform user of cost with lots of details
Console.WriteLine("Rent {0} to {1} {2} (ID: {3}) for {4} days.", vehicle.vehicleRego, customer.firstName, customer.lastName, customer.ID,
days);
Console.WriteLine("This vehicle has a daily cost of ${0}, bringing the total to ${1:0.00}.", vehicle.dailyRate,
(vehicle.dailyRate * days));
Console.WriteLine();
// Make user confirm rental at price
string input = "";
do
{
Console.Write("Confirm you want to go ahead with this rental (y/n): ");
input = Console.ReadLine().Trim().ToLower();
if (input == "y")
{
break;
}
if (input == "n")
{
return;
}
} while (input != "y" || input != "n");
// Let user know it was successful
Console.WriteLine();
fleet.RentVehicle(vehicle.vehicleRego, customer.ID);
Console.WriteLine("Successfully rented a {0} {1} {2} to {3} {4} (ID: {5})", vehicle.year, vehicle.make, vehicle.model,
customer.firstName, customer.lastName, customer.ID);
Console.WriteLine();
}
/// <summary>
/// Deletes customer and outputs result to user
/// </summary>
/// <param name="args">List of user-input arguments</param>
protected override void Execute(List <string> args)
{
CRM crm = repository.Get();
int customerID = int.Parse(args[Index_To_Use]);
Customer customer = ResolveCustomer(customerID);
// Ensure customer isn't renting
Fleet fleet = fleetRepository.Get();
if (fleet.IsCustomerRenting(customer.ID))
{
throw new CustomerCurrentlyRentingException(string.Format("Customer with ID {0} is currently renting a vehicle and " +
"cannot be deleted", customerID));
}
crm.RemoveCustomer(customer);
Console.WriteLine("Successfully removed customer {0} {1} (ID = {2}) from the MRRC CRM.", customer.firstName, customer.lastName, customer.ID);
Console.WriteLine();
}
/// <summary>
/// Hard resolve customer
/// </summary>
/// <param name="customerID"></param>
/// <returns>Customer or throws an exception if the customer does not exist</returns>
private Customer ResolveCustomer(int customerID)
{
CRM crm = repository.Get();
return(crm.GetCustomer(customerID));
}
