public Round GenerateMatchups(int tournamentId)
{
if (!CanGenerateNextRound(tournamentId))
{
throw new CantGenerateNewRoundException();
}
var previousMatchups = roundRepository.GetAllMatchups(tournamentId);
var players = playerRepository.GetAllInTournament(tournamentId);
var scores = roundRepository.GetScoresForTournament(tournamentId);
var contestants = players.Where(p => p.Active).Select(p => new Contestant
{
Identifier = p.Id,
Affiliation = p.Affiliation,
PreviousOpponents = ExtractPreviousOpponentsForPlayer(p, previousMatchups, players, scores),
Score = scores.Where(s => s.PlayerId == p.Id).Sum(s => s.Amount),
CompensationPoints = p.CompensationPoints
}).OrderBy(c => c.Score).ToList();
if (contestants.Count <= 1)
{
throw new Exception("Not enough active player in tournament to generate round matchups");
}
var engine = new MatchupEngine();
var contestantMatchups = engine.GenerateMatchup(contestants.Count % 2 == 0 ? contestants
: contestants.Skip(1).ToList());
var round = roundRepository.Add(new Round
{
RoundNumber = previousMatchups.Any() ? previousMatchups.Max(x => x.Key) + 1 : 1,
TournamentId = tournamentId
});
roundRepository.AddMatchupsToRound(round.Id, contestantMatchups.Select(x => new Matchup
{
RoundId = round.Id,
TableNumber = x.Table,
Player1Id = x.Contestant1.Identifier,
Player2Id = x.Contestant2.Identifier
}).ToList());
if (contestants.Count % 2 != 0)
{
//The left over player gets a pseudo matchup and score
var leftOverContestant = contestants.First();
roundRepository.AddPseudoMatchupToRound(round.Id, leftOverContestant.Identifier);
}
return(roundRepository.GetCurrentRound(tournamentId));
}