private void ValidateSourceFilename(ParsedArguments parsedArguments)
{
if (parsedArguments.SourceFilename is null)
{
parsedArguments.SourceFilename = GetSourceFilenameFromInput();
}
if (!File.Exists(parsedArguments.SourceFilename))
{
throw new InvalidArgumentsException($"The file {parsedArguments.SourceFilename} could not be found");
}
}
public ArgumentParser(string[] args)
{
RawArgs = args;
ParsedArguments = new ParsedArguments();
parser = new OptionSet()
{
{
"p|pgnfile=",
"the filename of the {PGNFILE} to load.",
filename => ParsedArguments.SourceFilename = filename
},
{
"o|output=",
"the filename of the {OUTPUT} file.",
filename => ParsedArguments.NewFilename = filename
}
};
}
private void ValidateOutputFilename(ParsedArguments parsedArguments)
{
if (parsedArguments.NewFilename is null)
{
parsedArguments.NewFilename = GetDefaultFenFileName(parsedArguments.SourceFilename);
}
if (parsedArguments.SourceFilename == parsedArguments.NewFilename)
{
throw new InvalidArgumentsException("Input PGN file and output file have the same name");
}
if (File.Exists(parsedArguments.NewFilename))
{
if (ShouldOverwriteNewFile(parsedArguments.NewFilename))
{
File.Delete(parsedArguments.NewFilename);
}
else
{
throw new InvalidArgumentsException($"{parsedArguments.NewFilename} already exists");
}
}
}
public void PrepareFiles(ParsedArguments parsedArguments)
{
ValidateSourceFilename(parsedArguments);
ValidateOutputFilename(parsedArguments);
}