Reset attendance rewards every day at 6:30 am.

Contributed by nasseka.

L2J_Mobius_Classic_Interlude/java/org/l2jmobius/gameserver/instancemanager/DailyTaskManager.java

@@ -68,6 +68,7 @@ public class DailyTaskManager extends AbstractEventManager<AbstractEvent<?>>
 		resetRecommends();
 		resetWorldChatPoints();
 		resetTrainingCamp();
+		onResetAttendanceRewards();
 	}
 	
 	@ScheduleTarget
@@ -259,6 +260,32 @@ public class DailyTaskManager extends AbstractEventManager<AbstractEvent<?>>
 		DailyMissionData.getInstance().getDailyMissionData().forEach(DailyMissionDataHolder::reset);
 	}
 	
+	public void onResetAttendanceRewards()
+	{
+		// Update data for offline players.
+		try (Connection con = DatabaseFactory.getConnection())
+		{
+			try (PreparedStatement ps = con.prepareStatement("DELETE FROM character_variables WHERE var=?"))
+			{
+				ps.setString(1, "ATTENDANCE_DATE");
+				ps.execute();
+			}
+		}
+		catch (Exception e)
+		{
+			LOGGER.log(Level.SEVERE, getClass().getSimpleName() + ": Could not reset Attendance Rewards: " + e);
+		}
+		
+		// Update data for online players.
+		for (PlayerInstance player : World.getInstance().getPlayers())
+		{
+			player.getVariables().remove("ATTENDANCE_DATE");
+			player.getVariables().storeMe();
+		}
+		
+		LOGGER.info("Attendance Rewards has been resetted.");
+	}
+	
 	public static DailyTaskManager getInstance()
 	{
 		return SingletonHolder.INSTANCE;