public void Bench()
{
var random = new Random();
var contestants = Enumerable.Range(0, 40)
.Select(_ => new Contestant(MilitaryRank.Private, new FullName("А.", "Спортсмен", "Б.")))
.ToArray();
_contestantsDb.OnNext(new ContestantsDb(contestants));
var gameResults = Enumerable.Range(0, 10000)
.Select(_ =>
{
var firstContestantIndex = random.Next(0, contestants.Length);
var secondContestantIndex = random.Next(0, contestants.Length);
while (firstContestantIndex == secondContestantIndex)
{
secondContestantIndex = random.Next(0, contestants.Length);
}
return(new GameResult(
new ContestantScore(contestants[firstContestantIndex], 11),
new ContestantScore(contestants[secondContestantIndex], random.Next(0, 10))));
})
.ToArray();
var gamesDb = new GamesDb(gameResults);
_gamesDb.OnNext(gamesDb);
}
public void LoadOrNew()
{
var doesContestantsDbExist = File.Exists(ContestantsDbFilePath);
if (doesContestantsDbExist)
{
LoadContestantsDb();
}
else
{
_contestantsDb.OnNext(new ContestantsDb());
}
if (File.Exists(GamesDbFilePath))
{
if (!doesContestantsDbExist)
{
throw new Exception();
}
LoadGamesDb();
}
else
{
var gamesDb = new GamesDb();
_gamesDb.OnNext(gamesDb);
}
}
/// <summary>
/// Собирает и возвращает статистику для выбранного спортсмена.
/// </summary>
/// <param name="gamesDb">БД матчей.</param>
/// <param name="contestantGuid">Guid спортсмена.</param>
public static ContestantStatistics GetForContestant(GamesDb gamesDb, Guid contestantGuid)
{
var gamesWithContestant = gamesDb.GamesResults.Where(result => result.DidContestantTakePart(contestantGuid))
.ToArray();
var gamesTotal = gamesWithContestant.Length;
var wins = gamesWithContestant.Count(result => result.GetWinnerGuid() == contestantGuid);
var losses = gamesWithContestant.Length - wins;
var isCalibrated = gamesTotal >= 10;
var winTotalRatio = isCalibrated ? 1.0 * wins / gamesTotal : 0;
var winTotalRatioPercentage = winTotalRatio * 100;
return(new ContestantStatistics(
contestantGuid,
gamesTotal,
wins,
losses,
isCalibrated,
winTotalRatio,
winTotalRatioPercentage));
}