public static IEnumerable <TournamentBracket> GetTournamentBrackets(this TournamentBracket bracket)
{
// Validate parameters.
if (bracket == null)
{
throw new ArgumentNullException(nameof(bracket));
}
// The implementation.
IEnumerable <TournamentBracket> Implementation()
{
// The stack of brackets.
var stack = new Stack <TournamentBracket>(EnumerableExtensions.From(bracket));
// While there are items on the stack.
while (stack.Count > 0)
{
// Pop the item.
TournamentBracket popped = stack.Pop();
// Yield.
yield return(popped);
// Add the groups to the stack.
foreach (TournamentBracket group in popped.Groups)
{
// Add.
stack.Push(group);
}
}
}
// Return the implementation.
return(Implementation());
}
private static string GetSingleStageType(this TournamentBracket bracket)
{
// Validate parameters.
if (bracket == null)
{
throw new ArgumentNullException(nameof(bracket));
}
// Return distinct stage types.
return(bracket
.Rounds
.Select(r => r.StageType)
.Distinct()
.Single());
}
public static bool IsMultiStageTournament(this TournamentBracket root)
{
// Validate parameters.
if (root == null)
{
throw new ArgumentNullException(nameof(root));
}
// If there are multiple levels.
if (root.Groups.Count > 0)
{
return(true);
}
// Are any of the matches group stage matches?
return(root
.GetTournamentBrackets()
.SelectMany(b => b.GetTournamentBracketMatches())
.Any(m => m.IsGroupMatch));
}
public static bool IsTournament(this TournamentBracket bracket) => bracket.GetSingleStageType() == StageType.Tournament;
public static bool IsGroupStage(this TournamentBracket bracket) => bracket.GetSingleStageType() == StageType.GroupStage;
public static IEnumerable <TournamentBracketMatch> GetTournamentBracketMatches(this TournamentBracket bracket)
{
// Validate parameters.
if (bracket == null)
{
throw new ArgumentNullException(nameof(bracket));
}
// Get the third place match, as well as the matches by round.
return(EnumerableExtensions.From(bracket.ThirdPlaceMatch)
.Concat(bracket.MatchesByRound.SelectMany(r => r.Value))
.Where(m => m != null));
}
