using System;

using System.Collections.Generic;

using System.Linq;

using System.Text;  

using System.IO;

using System.Data.Entity;

public class Program

{

    public static void Main()

    {

            var files = new List<string> ();

            files.Add(@"C:\some_01.wtv");

            files.Add(@"C:\some_02.wtv");

            files.Add(@"C:\some_03.wtv");

            files.Add(@"C:\some_04.wtv");

            files.Add(@"C:\some_05.wtv");

            files.Add(@"C:\some_06.wtv");

        var repo = new Repository();

        var parser = new Parser();

        var service = new RepositoryService(repo,parser);

        var filesList = service.ScanFolder(@"C:\");

        foreach(var item in filesList)

        {

            Console.WriteLine(item.Title);

        }

    }

}

​

​

​

​

public class RepositoryService

{

​

    private IParse _parser;

    private IRepository _repository;

    public RepositoryService(IRepository repo,IParse parser)

    {

        this._parser = parser;

        this._repository = repo;

    }

    public IEnumerable<WtvRecording> ScanFolder(string folderPath)

    {

        var files = this._repository.GetAllFiles();

        var recordings = this._parser.ParseFolder(files);

        return recordings;

    }

​

​

}

​

​

public interface IRepository

{

    IEnumerable<string> GetAllFiles();

​

}

​

public class Repository: IRepository

{

    private IEnumerable<string> _files;

    public Repository()

    {

        var files = new List<string> ();

            files.Add(@"C:\some_01.wtv");

            files.Add(@"C:\some_02.wtv");

            files.Add(@"C:\some_03.wtv");

            files.Add(@"C:\some_04.wtv");

            files.Add(@"C:\some_05.wtv");

            files.Add(@"C:\some_06.wtv");

        this._files = files;

    }

​

​

    public IEnumerable<string> GetAllFiles()

    {

        return  this._files;

    }

​

}

​

​

public class WtvRecording

{

    public string Title {get;set;}

    public string Year {get;set;}

    public string Description {get;set;}

}

​

​

public static class Extensions

{

    public static string GetFileHeaderValue(this string filePath, int ordinal)

    {

        return "header value";

    }

​

}

​

public class Parser: IParse

{

    public int OrdinalTitle;

    public int OrdinalYear; 

    public int OrdinalDescription;

    public IEnumerable<WtvRecording> ParseFolder(IEnumerable<string> files)

    {

        var recordingsWTV = files.Select(p => new WtvRecording()

                                         {Title = p.GetFileHeaderValue(OrdinalTitle),

                                          Year = p.GetFileHeaderValue(OrdinalYear)});

        return recordingsWTV;

    }

​

}

​

public interface IParse

{

    IEnumerable<WtvRecording> ParseFolder(IEnumerable<string> files);

​

}