a few fixes related to highscore notifications (#1086)

ProjectLighthouse.Servers.GameServer/Controllers/Slots/ScoreController.cs

@@ -152,7 +152,9 @@ public async Task<IActionResult> SubmitScore(string slotType, int id, int childI
             this.database.Scores.Add(existingScore);
         }
 
-        if (score.Points > existingScore.Points)
+        bool personalBest = score.Points > existingScore.Points;
+
+        if (personalBest)
         {
             existingScore.Points = score.Points;
             existingScore.Timestamp = TimeHelper.TimestampMillis;
@@ -172,12 +174,14 @@ public async Task<IActionResult> SubmitScore(string slotType, int id, int childI
             TargetPlayerIds = null,
         });
 
-        if (score.Type == 1 && scores.YourRank == 1 && scores.Total > 1)
+        // if this is a PB, singleplayer, at the top of the leaderboard (not scores.YourRank==1 because it might be tied), and there is at least one other score,
+        // send a notification to the user with the previous highscore
+        if (personalBest && score.Type == 1 && scores.Scores[0].UserId == token.UserId && scores.Total > 1)
         {
             GameScore? second = scores.Scores[1];
             UserEntity? user = await this.database.UserFromGameToken(token);
 
-            await this.database.SendNotification(second.UserId, $"{user?.InfoXml} beat your highscore (<em>{second.Points}</em>) on {slot.InfoXml} with a score of <em>{score.Points}</em>.", true);
+            await this.database.SendNotification(second.UserId, $"{user?.InfoXml} beat your highscore (<em>{second.Points}</em>) on {slot.InfoXml} with a score of <em>{score.Points}</em>.", false);
         }
 
         return this.Ok(scores);