using CommandLine;

using CommandLine.Text;

using System;

using System.Collections.Generic;

using System.IO;

using System.Linq;

namespace Extractor

{

class Program

{

static List<String> ExtractSingleFile(string filename, Options opts)

{

string data = File.ReadAllText(filename);

var extractor = new Extractor(data, opts);

List<String> result = extractor.Extract();

return result;

}

static void Main(string[] args)

{

Options options = new Options();

Parser.Default.ParseArguments<Options>(args)

.WithParsed(opt => options = opt)

.WithNotParsed(errors =>

{

Console.WriteLine(errors);

return;

});

string path = options.Path;

string[] files;

if (Directory.Exists(path))

{

files = Directory.GetFiles(path, "*.cs", SearchOption.AllDirectories);

}

else

{

files = new string[] { path };

}

IEnumerable<string> results = null;

results = files.AsParallel().WithDegreeOfParallelism(options.Threads).SelectMany(filename => ExtractSingleFile(filename, options));

using (StreamWriter sw = new StreamWriter(options.OFileName, append: true))

{

foreach (var res in results)

{

sw.WriteLine(res);

}

}

}

}

}