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feat: filter scores by playlist diffs #67

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31 changes: 26 additions & 5 deletions Utils/ScoreListUtils.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -316,21 +316,42 @@ public static class ScoreListUtils {
}



private static bool NoDifficulties(PlaylistSong s) => s.difficulties == null || s.difficulties.Count == 0;
private static bool WithDifficulties(PlaylistSong s) => !NoDifficulties(s);
private static bool ContainsDifficulty(IScore s, List<PlaylistDifficulty> difficulties) => difficulties.Any(diff =>
diff.name.ToLower() == s.Leaderboard.Difficulty.DifficultyName.ToLower() &&
diff.characteristic.ToLower() == s.Leaderboard.Difficulty.ModeName.ToLower()
);
private static IQueryable<IScore> WherePlaylists(this IQueryable<IScore> sequence, List<PlaylistResponse>? playlists)
{
if (playlists == null)
{
return sequence;
}

var hashes = playlists.SelectMany(p => p.songs.Where(s => s.hash != null).Select(s => (string)s.hash!.ToLower())).ToList();
var keys = playlists.SelectMany(p => p.songs.Where(s => s.hash == null && s.key != null).Select(s => (string)s.key!.ToLower())).ToList();
var songsByHashes = playlists.SelectMany(p => p.songs.Where(s => NoDifficulties(s) && s.hash != null)).ToList();
var songsByHashesAndDiffs = playlists.SelectMany(p => p.songs.Where(s => WithDifficulties(s) && s.hash != null)).ToList();
var songsByKeys = playlists.SelectMany(p => p.songs.Where(s => NoDifficulties(s) && s.hash == null && s.key != null)).ToList();
var songsByKeysAndDiffs = playlists.SelectMany(p => p.songs.Where(s => WithDifficulties(s) && s.hash == null && s.key != null)).ToList();

if (hashes.Count == 0 && keys.Count == 0) {
if (songsByHashes.Count == 0 && songsByHashesAndDiffs.Count == 0 && songsByKeys.Count == 0 && songsByKeysAndDiffs.Count == 0) {
return sequence;
}
return sequence.Where(s => hashes.Contains(s.Leaderboard.Song.Hash.ToLower()) || keys.Contains(s.Leaderboard.Song.Id));


return sequence
.Where(s =>
songsByHashes.Select(x => x.hash.ToLower()).Contains(s.Leaderboard.Song.Hash.ToLower()) ||
songsByKeys.Select(x => x.key.ToLower()).Contains(s.Leaderboard.Song.Id) ||
songsByHashesAndDiffs.Any(x =>
s.Leaderboard.Song.Hash.ToLower() == x.hash.ToLower() &&
ContainsDifficulty(s, x.difficulties!) // difficulties are checked in the SelectMany of songsByHashesAndDiffs
) ||
songsByKeysAndDiffs.Any(x =>
s.Leaderboard.Song.Id.ToLower() == x.key.ToLower() &&
ContainsDifficulty(s, x.difficulties) // difficulties are checked in the SelectMany of songsByKeysAndDiffs
)
);
}
}
}