public async Task Ranking(IUser user = null)
{
user ??= Context.User as IUser;
var playerRanking = rankingService.SeriesPlayers.Select((x, i) => new KeyValuePair <int, SeriesPlayer>(i + 1, x)).ToDictionary(x => x.Key, x => x.Value);
var embed = new EmbedBuilder()
.WithAuthor(user)
.WithColor(Color.Orange)
.WithTitle("Leaderboard")
.WithDescription(rankingService.PrintRankingList(playerRanking.Take(10)).JoinLines());
if (playerRanking.Values.Any(x => x.Id == user.Id.ToString()))
{
IConvertible getWins(IEnumerable <Series> seriesSet, string playerId) => seriesSet.Sum(x => x.WinnerId == playerId ? x.Wins : x.Losses);
var player = playerRanking.First(x => x.Value.Id == user.Id.ToString());
var playerId = player.Value.Id;
var seriesHistory = seriesService.SeriesHistory.Where(x => x.WinnerId == playerId || x.LoserId == playerId);
var gamesPlayed = seriesHistory.Sum(x => x.Wins + x.Losses);
var seriesHistoryLast3 = seriesHistory.Reverse().Take(3).Reverse();
var totalWins = getWins(seriesHistory, playerId);
var playerRankoutput = $"{Format.Bold("Position")}\n{rankingService.PrintRankingList(playerRanking.Skip(player.Key - 2).Take(3)).JoinLines()}";
var gamesPlayedOutput = $"`{gamesPlayed}` Games played";
var winLossOutput = $"`{totalWins}-{gamesPlayed - totalWins.ToInt32(default)}` Win loss";
