private void GeneratePlaylist(string musicDirectory, string songFile)
{
var songProvider = File
.ReadAllLines(Path.Combine(musicDirectory, songFile))
.Select(JsonConvert.DeserializeObject<Song>);
songProvider = FilterSongs(songProvider);
var addAllsongs = Playlist.SongsInPlaylist(@"F:\Music\Zune\Playlists\Always Add.zpl");
var songs = new PlaylistGenerator().GeneratePlayList(
songProvider,
_totalSongCount,
addAllsongs)
.ToArray();
Func<Song, bool> isJazz = x => string.Equals(x.PrimaryGenre, "Jazz", StringComparison.OrdinalIgnoreCase);
Func<Song, bool> isClassical = x => string.Equals(x.PrimaryGenre, "Classical", StringComparison.OrdinalIgnoreCase);
Playlist.SavePlaylist(
songs.Where(x => ! isJazz(x) && ! isClassical(x)),
"My Everything Else");
Playlist.SavePlaylist(songs.Where(isClassical),
"My Classical");
Playlist.SavePlaylist(songs.Where(isJazz),
"My Jazz");
}
public void FillsInWithSongsWhenNotEnoughSpecified()
{
var all = new List<Song>(GetRandomSongs(75000));
var songs = new PlaylistGenerator(new List<ICriteriaCounter<Song>>())
.GeneratePlayList(all, 100, all.Take(50));
Assert.AreEqual(songs.Count(), 100);
}
public void TestAlwaysAdd()
{
var alwaysAdd = new List<Song>(GetRandomSongs(250));
var all = new List<Song>(GetRandomSongs(7500));
all.AddRange(alwaysAdd);
var songs = new PlaylistGenerator(new List<ICriteriaCounter<Song>>()).GeneratePlayList(all, alwaysAdd.Count, alwaysAdd);
CollectionAssert.AreEquivalent(songs.ToArray(), alwaysAdd);
}
public void TestCriteriaFilter()
{
var firstCat = "one";
var firstCriteria = new List<Song>(GetRandomSongs(10));
firstCriteria.ForEach(x => x.Category = firstCat);
var all = new List<Song>(GetRandomSongs(75000));
all.AddRange(firstCriteria);
var criteria = new List<ICriteriaCounter<Song>>() { new CriteriaCounter(song => song.Category == firstCat, firstCriteria.Count() + 100) };
var songs = new PlaylistGenerator(criteria).GeneratePlayList(all, firstCriteria.Count, new List<Song>());
CollectionAssert.AreEquivalent(songs.ToArray(), firstCriteria);
}
public void TestMultipleCriteriaFilter()
{
var firstCat = "one";
var secondCat = "two";
var thirdCat = "three";
var firstCriteria = new List<Song>(GetRandomSongs(10));
firstCriteria.ForEach(x => x.Category = firstCat);
var secondCriteria = new List<Song>(GetRandomSongs(50));
secondCriteria.ForEach(x => x.Category = secondCat);
var thirdCriteria = new List<Song>(GetRandomSongs(150));
thirdCriteria.ForEach(x => x.Category = thirdCat);
var criteriaList = new List<Song>();
criteriaList.AddRange(firstCriteria);
criteriaList.AddRange(secondCriteria);
criteriaList.AddRange(thirdCriteria);
var all = new List<Song>(GetRandomSongs(75000));
all.AddRange(criteriaList);
var criteria = new List<ICriteriaCounter<Song>>()
{
new CriteriaCounter(song => song.Category == firstCat, firstCriteria.Count()),
new CriteriaCounter(song => song.Category == secondCat, secondCriteria.Count()),
new CriteriaCounter(song => song.Category == thirdCat, thirdCriteria.Count()),
};
var songs = new PlaylistGenerator(criteria).GeneratePlayList(all, criteriaList.Count, new List<Song>());
CollectionAssert.AreEqual(
songs.OrderBy(x => x.GetHashCode()).ToArray(),
criteriaList.OrderBy(x => x.GetHashCode()).ToArray());
}
