public Action ParseArguments(string[] arguments)
{
if (arguments.Length == 0)
{
throw new EmptyArgumentsException($"{UserMessages.EmptyArguments} {UserMessages.SpecifyArguments}");
}
if (arguments.Length < RequiredArgumentsCount)
{
throw new InvalidArgumentException(
$"{UserMessages.SomeArgumentsAreMissing} {UserMessages.SpecifyArguments}");
}
var command = arguments[CommandIndex];
var inputFilePath = arguments[InputFileIndex];
var outputFilePath = arguments[OutputFileIndex];
ValidatePath(inputFilePath, "Input");
ValidatePath(outputFilePath, "Output");
IFileService fileService = FileServiceFactory.GetFileService();
var delegateToCall = GetDelegateToCall(command, fileService);
return(() => delegateToCall(inputFilePath, outputFilePath));
}
