Hello Absurd World!

class Album
{
    public string AlbumTitle { get; set; }
    public string Artist { get; set; }
    public List<string> TrackTitles { get; set; }
    public int? Year { get; set; }

    public static Album FromJson(string jsonstr)
    {
        return Newtonsoft.Json.JsonConvert.DeserializeObject<Album>(jsonstr);
    }

    public Dictionary<string, Object> GetDict()
    {
        var dict = new Dictionary<string, dynamic>() {
            {"AlbumTitle", AlbumTitle},
            {"Artist", Artist},
            {"TrackTitles", TrackTitles},
            {"Year", Year},
        };
        return dict;
    }
}

var album1 = new Album()
{
    AlbumTitle = "album1",
    Artist = "artist1",
    TrackTitles = new List<string> {"t1", "t2", "t3"},
    Year = 2010
};

var album2 = new Album()
{
    AlbumTitle = "album2",
    Artist = "artist2",
    TrackTitles = new List<string> { "t1", "t2", "t3", "t4", "t5" },
    Year = 2005
};

var album3 = new Album()
{
    AlbumTitle = "album3",
    Artist = "artist1",
    TrackTitles = new List<string> { "r1" },
    Year = null
};

var albums = new List<Album> { album1, album2, album3 };

foreach (var album in albums)
{
    var document = db.CreateDocument();
    document.Id = album.Artist + " " + album.AlbumTitle;
    var albumDict = album.GetDict();
    albumDict["updated_at"] = DateTime.Now;
    var properties = albumDict;
    var rev = document.PutProperties(properties);
    Console.WriteLine(rev);
}

var view = db.GetView("all");
if (view != null)
{
    view.SetMap((doc, emit) =>
    {
        emit(doc["AlbumTitle"], doc);
    }, "ver1");
}

var vQuery = db.GetView("all").CreateQuery();
docs = vQuery.Run();
Console.WriteLine("no filter: " + docs.Count);

foreach (var doc in docs)
{
    var album = Album.FromJson(doc.Value.ToString());
    Console.WriteLine(album.AlbumTitle);
}

var view3 = db.GetView("TrackTitleFilter");
if (view3 != null)
{
    view3.SetMap((doc, emit) =>
    {
        var titles = ((JArray)doc["TrackTitles"]).ToArray();
        if (titles.Contains("t1"))
        {
            emit(doc["AlbumTitle"], doc);
        }
    }, "ver1");
}

var vQuery = db.GetView("TrackTitleFilter").CreateQuery();
docs = vQuery.Run();
Console.WriteLine("TrackTitle filter: " + docs.Count);