update

internal/services/game_service/participation_test.go

@@ -106,6 +106,10 @@ func TestParticipationPostgres(t *testing.T) {
 	state(3, "pending")
 	state(4, "confirmed")
 	state(5, "pending")
+	if err := repo.ConfirmParticipationByFirstAction(ctx, 5); err != nil {
+		t.Fatal(err)
+	}
+	state(5, "confirmed")
 	// Independent workers must claim each due team just once.
 	var wg sync.WaitGroup
 	ids := make(chan int, 8)

internal/services/game_service/service.go

@@ -299,6 +299,11 @@ func (s *GameService) AddTeamAction(ctx context.Context, teamId int, password st
 	if err != nil {
 		return err
 	}
+	if team.ParticipationStatus == "pending" {
+		if err := s.teamsRepo.ConfirmParticipationByFirstAction(ctx, teamId); err != nil {
+			return err
+		}
+	}
 
 	game, err := s.gamesRepo.GetGameByID(ctx, team.GameId)
 	if err != nil {