Update users eloDiff

system/src/main/scala/Finisher.scala

@@ -62,12 +62,12 @@ final class Finisher(
       g3 ← message some { messenger.systemMessage(g2, _) } none io(g2)
       _ ← gameRepo.applyDiff(game, g3)
       _ ← versionMemo put g3
-      _ ← updateElo(g2)
-      _ ← incNbGames(g2, White)
-      _ ← incNbGames(g2, Black)
+      _ ← updateElo(g3)
+      _ ← incNbGames(g3, White)
+      _ ← incNbGames(g3, Black)
     } yield ())
 
-  private def incNbGames(game: DbGame, color: Color) =
+  private def incNbGames(game: DbGame, color: Color): IO[Unit] =
     game.player(color).userId.fold(
       id ⇒ userRepo.incNbGames(id, game.rated),
       io()
@@ -84,6 +84,10 @@ final class Finisher(
         whiteUser ← userRepo user whiteUserId
         blackUser ← userRepo user blackUserId
         (whiteElo, blackElo) = eloCalculator.calculate(whiteUser, blackUser, game.winnerColor)
+        _ ← gameRepo.setEloDiffs(
+          game.id,
+          whiteElo - whiteUser.elo,
+          blackElo - blackUser.elo)
         _ ← userRepo.setElo(whiteUser.id, whiteElo)
         _ ← userRepo.setElo(blackUser.id, blackElo)
         _ ← historyRepo.addEntry(whiteUser.username, whiteElo, game.id)

system/src/main/scala/db/GameRepo.scala

@@ -44,7 +44,7 @@ class GameRepo(collection: MongoCollection)
     diff(encode(a), encode(b)) |> { diffs ⇒
       if (diffs.nonEmpty) {
         val fullDiffs = ("updatedAt" -> new Date()) :: diffs
-        io { update(DBObject("_id" -> a.id), $set (fullDiffs: _*)) }
+        io { update(DBObject("_id" -> a.id), $set(fullDiffs: _*)) }
       }
       else io()
     }
@@ -82,6 +82,15 @@ class GameRepo(collection: MongoCollection)
     insert(encode(game))
   }
 
+  // makes the asumption that player 0 is white!
+  // proved to be true on prod DB at March 31 2012
+  def setEloDiffs(id: String, white: Int, black: Int) = io {
+    update(
+      DBObject("_id" -> id),
+      $set("players.0.eloDiff" -> white, "players.1.eloDiff" -> black)
+    )
+  }
+
   def decode(raw: RawDbGame): Option[DbGame] = raw.decode
 
   def encode(dbGame: DbGame): RawDbGame = RawDbGame encode dbGame

todo

@@ -1,4 +1,3 @@
 move times
 blurs
-"Draw offer sent" do not show up on new tab
 ie9 testing (frozen sync/clock)