public List<Match> DrawNextRound(Round previousRound)
{
var matchesToUpdate = new List<Match>();
// Determine whether for the given round all matches have been played.
using (var matchRepository = new RepositoryFactory().CreateMatchRepository())
using (var roundRepository = new RepositoryFactory().CreateRoundRepository())
{
var matchesCurrentRound = matchRepository.GetByRound(previousRound.Id).ToList();
bool allMatchesPlayed = matchesCurrentRound.All(match => match.MatchStatus == MatchStatus.Ended);
if (allMatchesPlayed)
{
// Determine the next round and verify the matches have no home and away teams defined yet.
var nextRound = roundRepository.GetNextRound(previousRound);
if (nextRound != null)
{
var matchesNextRound = matchRepository.GetByRound(nextRound.Id).ToList();
bool roundMustBeDrawn = matchesNextRound.All(match => match.MatchStatus == MatchStatus.TeamsUndefined);
if (roundMustBeDrawn)
{
var winners = matchesCurrentRound.Select(match => match.GetWinner()).ToList();
new KnockoutTournamentManager().DrawNextRound(winners, matchesNextRound);
foreach (var match in matchesNextRound)
{
matchesToUpdate.Add(match);
}
}
}
}
}
return matchesToUpdate;
}