/// <summary>
/// The actual execution of editing a vehicle.
/// Resolve and check for business logic constraints before equalising values and letting the user know it was successful.
/// </summary>
/// <param name="args">List of user-defined inputs</param>
protected override void Execute(List <string> args)
{
PropertyInfo[] vehicleProperties = typeof(Vehicle).GetProperties();
Vehicle existingVehicle = ResolveVehicle(args);
List <string> trimmedArgs = TrimArguments(args);
DefaultArguments(ref trimmedArgs, vehicleProperties, existingVehicle);
Vehicle validatedVehicle = CreateNewVehicle(trimmedArgs);
// Ensure vehicle isn't being rented
Fleet fleet = repository.Get();
Vehicle vehicle = fleet.GetVehicle(validatedVehicle.vehicleRego);
if (fleet.IsVehicleRented(vehicle.vehicleRego))
{
throw new VehicleCurrentlyRentingException(string.Format("{0} is currently being rented and cannot be edited.",
vehicle.vehicleRego));
}
ValidateConstraints(existingVehicle, validatedVehicle);
EqualiseVehicles(existingVehicle, validatedVehicle);
Console.WriteLine("Successfully edited vehicle {0} {1} {2} (Registration = {3}).", validatedVehicle.year, validatedVehicle.make,
validatedVehicle.model, validatedVehicle.vehicleRego);
Console.WriteLine();
}
// This method creates the rental data table for displaying rentals
public static void RentalsToTable(Fleet fleet, DataTable Name)
{
// String array containing all fields
string[] Fields = { "Registration", "CustomerID", "DailyRate" };
// Add columns to rentals datatable
foreach (string field in Fields)
{
Name.Columns.Add(new DataColumn(field));
}
// list which will contain all the lines
List <string> totalLines = new List <string>();
// Loop through dictionary and store all values into total lines, including dailyRate
foreach (KeyValuePair <string, int> kvp in fleet.Rentals)
{
totalLines.Add(kvp.Key + "," + kvp.Value.ToString() + "," + fleet.GetVehicle(kvp.Key).dailyRate.ToString("C"));
}
// implement loop to add data lines to the row data
for (int row = 0; row < totalLines.Count; row++)
{
string[] dataWords = totalLines[row].Split(',');
DataRow dataRow = Name.NewRow();
int columnIndex = 0;
foreach (string Field in Fields)
{
dataRow[Field] = dataWords[columnIndex++];
}
// add row to datatable
Name.Rows.Add(dataRow);
}
}
/// <summary>
/// Hard resolve vehicle from fleet, with an exception throwing if it cannot be resolveds
/// </summary>
/// <param name="args">List of user-defined inputs</param>
/// <returns>Vehicle if can be resolved from arguments</returns>
private Vehicle ResolveVehicle(List <string> args)
{
Fleet fleet = repository.Get();
string vehicleRego = args[Index_To_Remove];
return(fleet.GetVehicle(vehicleRego));
}
/// <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>
/// Removes a vehicle from the fleet using user input
/// </summary>
/// <param name="args">List of user-input arguments</param>
protected override void Execute(List <string> args)
{
Fleet fleet = repository.Get();
string vehicleRego = args[Index_To_Use];
// Disallow deleting vehicles being rented
Vehicle vehicle = fleet.GetVehicle(vehicleRego);
if (fleet.IsVehicleRented(vehicle.vehicleRego))
{
throw new VehicleCurrentlyRentingException(string.Format("{0} is currently being rented and cannot be deleted.",
vehicle.vehicleRego));
}
fleet.RemoveVehicle(vehicle);
Console.WriteLine("Successfully removed a {0} {1} {2} with registration {3} from the MRRC fleet.", vehicle.year, vehicle.make,
vehicle.model, vehicle.vehicleRego);
Console.WriteLine();
}
/// <summary>
/// Return a vehicle from user input
/// </summary>
/// <param name="args">List of user-input arguments</param>
protected override void Execute(List <string> args)
{
// Setup variables
Fleet fleet = repository.Get();
string vehicleRego = args[0];
fleet.GetVehicle(vehicleRego); // Call this to verify vehicle exists (will throw exception)
// Disallow returning vehicles not being rented
if (!fleet.IsVehicleRented(vehicleRego))
{
throw new Exception(string.Format("Vehicle {0} is not currently being rented. No need to return it.", vehicleRego));
}
fleet.ReturnVehicle(vehicleRego);
// Let user know that it has been successful
Console.WriteLine(string.Format("Successfully returned vehicle {0} to the fleet. It can now be rented to other customers.",
vehicleRego));
Console.WriteLine();
}