public async Task UpdateStandings_Newcomer_PointsUpdated()
{
var league = CreateLeague(2);
var player1 = league.Members[0];
var originalPoints = player1.Points;
var set = SetUtility.Create(dbContext, player1.ID, league.Members[1].ID, league.ID);
DbContextUtility.UpdateAndSave(dbContext, set, () => { set.IsComplete = true; });
pointService.CalculatePointDeltas(0, 0, false).ReturnsForAnyArgs((1, -1));
await testObj.UpdateStandings(league.ID);
Assert.AreNotEqual(originalPoints, player1.Points);
}
public async Task <League> UpdateStandings(int leagueID)
{
var league = await dbContext.Leagues
.Include(l => l.Members)
.FirstOrDefaultAsync(l => l.ID == leagueID);
if (league == null)
{
throw new NotFoundException(typeof(League), leagueID);
}
var playedSets = await dbContext.Sets.Where(s => s.LeagueID == leagueID &&
s.IsComplete &&
!s.IsLocked).ToArrayAsync();
dbContext.Sets.UpdateRange(playedSets);
dbContext.UpdateRange(league.Members);
UpdatePoints();
UpdateRanks();
await dbContext.SaveChangesAsync();
return(league);
void UpdatePoints()
{
var pointsPerMember = new Dictionary <int, int>();
foreach (var set in playedSets)
{
var player1Won = set.WinnerID == set.Player1ID;
var(p1Points, p2Points) = pointService.CalculatePointDeltas(set.Player1.Points, set.Player2.Points, player1Won);
// TODO: beginner multiplier
if (!pointsPerMember.ContainsKey(set.Player1ID))
{
pointsPerMember.Add(set.Player1ID, 0);
}
if (!pointsPerMember.ContainsKey(set.Player2ID))
{
pointsPerMember.Add(set.Player2ID, 0);
}
pointsPerMember[set.Player1ID] += p1Points;
pointsPerMember[set.Player2ID] += p2Points;
set.IsLocked = true;
}
foreach (var member in league.Members)
{
if (pointsPerMember.TryGetValue(member.ID, out var eloDelta))
{
member.Points += eloDelta;
}
}
}
void UpdateRanks()
{
var activeMembers = league.Members.OrderByDescending(lu => lu.Points).ToList();
var rank = 0;
var lastPoints = -1;
for (var i = 0; i < activeMembers.Count; i++)
{
var member = activeMembers[i];
if (league.IsMemberNew(member))
{
member.Rank = 0;
continue;
}
if (member.Points != lastPoints)
{
lastPoints = member.Points;
rank = i + 1;
}
member.Rank = rank;
}
}
}