public static void Run(CommandLineArgs args)
{
if (args.InputFiles?.Any() != true)
{
Console.WriteLine(" ERROR: No input file specified.");
return;
}
if (File.Exists(args.OutputFile))
{
if (args.Quiet)
{
Console.WriteLine(" ERROR: Output file already exists.");
return;
}
Console.WriteLine("Output file already exists. Overwrite (y/n)?");
if (Console.ReadLine().TrimStart().ToLower() != "y")
{
return;
}
}
var changeTabulator = new ChangeTabulator(
new Domain.ChangeTabulationSrategies.RandomTabulationStrategy(),
new Domain.ChangeTabulationSrategies.BigEndianTabulationStrategy());
using var sw = string.IsNullOrEmpty(args.OutputFile) ? null : new StreamWriter(args.OutputFile);
foreach (var inputFile in args.InputFiles)
{
if (!File.Exists(inputFile))
{
if (!args.Quiet)
{
Console.WriteLine($" WARNING: Input file \"{inputFile}\" not found, skipping.");
}
continue;
}
if (!args.Quiet)
{
Console.WriteLine("----------------------------------------------");
Console.WriteLine($"- {Path.GetFullPath(inputFile)}");
Console.WriteLine("----------------------------------------------");
}
using var sr = new StreamReader(inputFile);
using var cr = new CsvHelper.CsvReader(sr,
new CsvHelper.Configuration.CsvConfiguration(CultureInfo.InvariantCulture)
{
//BadDataFound = a =>
//{
// var line = string.IsNullOrWhiteSpace(a.RawRecord) ? "" : $"# {a.RawRecord}";
// sw?.WriteLine(line);
// if (!args.Quiet)
// Console.WriteLine(line);
//},
HasHeaderRecord = false,
HeaderValidated = null,
IgnoreBlankLines = false,
ShouldSkipRecord = a =>
{
if (a.Record.Length != 2 || !decimal.TryParse(a.Record[0], out _) || !decimal.TryParse(a.Record[1], out _))
{
var line = string.Join(",", a.Record);
sw?.WriteLine(line);
if (!args.Quiet)
{
Console.WriteLine(line);
}
return(true);
}
return(false);
}
});
while (cr.Read())
{
var input = cr.GetRecord <InputRecord>();
var result = $"Amount owed: {input.AmountOwed:C} Amount tendered: {input.AmountTendered:C}" + (
input.AmountOwed < 0 ? "ERROR: Cannot owe negative money." :
input.AmountTendered < 0 ? "ERROR: Cannot tender negative money." :
input.AmountTendered < input.AmountOwed ? "ERROR: Need more money." :
input.AmountOwed == input.AmountTendered ? "No change owed." :
($" Change due: {input.AmountTendered - input.AmountOwed:C}{IsDivisibleByThree(input.AmountOwed, input.AmountTendered)} => "
+ changeTabulator.TabulateChange(input.AmountOwed, input.AmountTendered)
.PrettyPrint()));
sw?.WriteLine(result);
if (!args.Quiet)
{
Console.WriteLine(result);
}
}
}
}
public void GIVEN_an_amount_due_less_than_zero_WHEN_TabulateChange_is_called_THEN_an_exception_should_be_thrown()
{
Assert.Catch <ArgumentException>(() => tabulator.TabulateChange(-1, 10));
}