protected virtual async Task <GameResult> ExecuteAsync(Game game, KeepDoorOption keepDoorOption, CancellationToken token)
{
if (game == null)
{
throw new System.Exception(ErrorMessages.InvalidGameObject);
}
if (token.IsCancellationRequested)
{
token.ThrowIfCancellationRequested();
}
//Step 1: User choose first door
int randomDoorIndex;
int selectedDoorIndex;
selectedDoorIndex = new System.Random().Next(game.Doors.Length);
randomDoorIndex = svc.ChooseFirstDoor(game, selectedDoorIndex);
//Step 2: User does not keep door
if (keepDoorOption == KeepDoorOption.NotKeepDoor)
{
var execludedDoorIndex = new List <int>()
{
selectedDoorIndex, randomDoorIndex
};
selectedDoorIndex = Enumerable.Range(0, 3).Except(execludedDoorIndex).First();
}
svc.ChooseSecondDoor(game, selectedDoorIndex);
return(svc.GetGameResult(game));
}
public async Task <IEnumerable <GameResult> > SimulateAsync(int noOfSimulations, KeepDoorOption keepDoorOption, CancellationToken token)
{
try
{
var games = Enumerable.Range(0, noOfSimulations).Select(x => { return(new Game()
{
index = x
}); }).ToList();
var gamesTasks = games.AsParallel().WithCancellation(token).Select(x => { return(ExecuteAsync(x, keepDoorOption, token)); });
return(await Task.WhenAll(gamesTasks.ToList()).ConfigureAwait(false));
}
catch (Exception ex)
{
logger.LogError(ex.Message);
throw;
}
}
public async Task <IActionResult> SimulateAsync([FromQuery] uint noOfSimulations, [FromQuery] KeepDoorOption keepDoorOption, CancellationToken token)
{
_logger.LogInformation($"Simulate started Total: {noOfSimulations}");
var results = await svc.SimulateAsync((int)noOfSimulations, keepDoorOption, token);
_logger.LogInformation($"Simulate completed Total: {noOfSimulations}");
var summary = new GamesResultSummary
{
TotalWin = results.Count(x => x == GameResult.Win),
TotalLoose = results.Count(x => x == GameResult.Loose)
};
return(new ObjectResult(summary));
}
