feat: game lobby service

user/internal/service/authdirectory/service.go

@@ -22,7 +22,7 @@ const (
 	initialEntitlementActorType  common.ActorType  = "service"
 	initialEntitlementActorID    common.ActorID    = "user-service"
 
-	ensureCreateRetryLimit = 8
+	ensureCreateRetryLimit = 10
 )
 
 // ResolveByEmailInput stores one auth-facing resolve-by-email request.
@@ -155,7 +155,6 @@ type Ensurer struct {
 	store                ports.AuthDirectoryStore
 	clock                ports.Clock
 	idGenerator          ports.IDGenerator
-	policy               ports.RaceNamePolicy
 	logger               *slog.Logger
 	telemetry            *telemetry.Runtime
 	profilePublisher     ports.ProfileChangedPublisher
@@ -168,9 +167,8 @@ func NewEnsurer(
 	store ports.AuthDirectoryStore,
 	clock ports.Clock,
 	idGenerator ports.IDGenerator,
-	policy ports.RaceNamePolicy,
 ) (*Ensurer, error) {
-	return NewEnsurerWithObservability(store, clock, idGenerator, policy, nil, nil, nil, nil, nil)
+	return NewEnsurerWithObservability(store, clock, idGenerator, nil, nil, nil, nil, nil)
 }
 
 // NewEnsurerWithObservability returns one ensure-by-email use case instance
@@ -180,7 +178,6 @@ func NewEnsurerWithObservability(
 	store ports.AuthDirectoryStore,
 	clock ports.Clock,
 	idGenerator ports.IDGenerator,
-	policy ports.RaceNamePolicy,
 	logger *slog.Logger,
 	telemetryRuntime *telemetry.Runtime,
 	profilePublisher ports.ProfileChangedPublisher,
@@ -194,14 +191,11 @@ func NewEnsurerWithObservability(
 		return nil, fmt.Errorf("authdirectory ensurer: clock must not be nil")
 	case idGenerator == nil:
 		return nil, fmt.Errorf("authdirectory ensurer: id generator must not be nil")
-	case policy == nil:
-		return nil, fmt.Errorf("authdirectory ensurer: race-name policy must not be nil")
 	default:
 		return &Ensurer{
 			store:                store,
 			clock:                clock,
 			idGenerator:          idGenerator,
-			policy:               policy,
 			logger:               logger,
 			telemetry:            telemetryRuntime,
 			profilePublisher:     profilePublisher,
@@ -256,7 +250,7 @@ func (service *Ensurer) Execute(ctx context.Context, input EnsureByEmailInput) (
 		if err != nil {
 			return EnsureByEmailResult{}, shared.ServiceUnavailable(err)
 		}
-		raceName, err := service.idGenerator.NewInitialRaceName()
+		userName, err := service.idGenerator.NewUserName()
 		if err != nil {
 			return EnsureByEmailResult{}, shared.ServiceUnavailable(err)
 		}
@@ -264,7 +258,7 @@ func (service *Ensurer) Execute(ctx context.Context, input EnsureByEmailInput) (
 		accountRecord := account.UserAccount{
 			UserID:            userID,
 			Email:             email,
-			RaceName:          raceName,
+			UserName:          userName,
 			PreferredLanguage: preferredLanguage,
 			TimeZone:          timeZone,
 			CreatedAt:         now,
@@ -294,21 +288,16 @@ func (service *Ensurer) Execute(ctx context.Context, input EnsureByEmailInput) (
 			StartsAt:   now,
 			CreatedAt:  now,
 		}
-		reservation, err := shared.BuildRaceNameReservation(service.policy, userID, raceName, now)
-		if err != nil {
-			return EnsureByEmailResult{}, shared.ServiceUnavailable(err)
-		}
 
 		ensureResult, err := service.store.EnsureByEmail(ctx, ports.EnsureByEmailInput{
 			Email:             email,
 			Account:           accountRecord,
 			Entitlement:       entitlementSnapshot,
 			EntitlementRecord: entitlementRecord,
-			Reservation:       reservation,
 		})
 		if err != nil {
-			if errors.Is(err, ports.ErrRaceNameConflict) && service.telemetry != nil {
-				service.telemetry.RecordRaceNameReservationConflict(ctx, "ensure_by_email")
+			if errors.Is(err, ports.ErrUserNameConflict) && service.telemetry != nil {
+				service.telemetry.RecordUserNameConflict(ctx, "ensure_by_email")
 			}
 			if errors.Is(err, ports.ErrConflict) {
 				continue
@@ -349,11 +338,12 @@ func (service *Ensurer) publishInitializedEvents(
 	occurredAt := accountRecord.UpdatedAt.UTC()
 
 	service.publishProfileChanged(ctx, ports.ProfileChangedEvent{
-		UserID:     accountRecord.UserID,
-		OccurredAt: occurredAt,
-		Source:     initialEntitlementSource,
-		Operation:  ports.ProfileChangedOperationInitialized,
-		RaceName:   accountRecord.RaceName,
+		UserID:      accountRecord.UserID,
+		OccurredAt:  occurredAt,
+		Source:      initialEntitlementSource,
+		Operation:   ports.ProfileChangedOperationInitialized,
+		UserName:    accountRecord.UserName,
+		DisplayName: accountRecord.DisplayName,
 	})
 	service.publishSettingsChanged(ctx, ports.SettingsChangedEvent{
 		UserID:            accountRecord.UserID,