Reapply "feat(loyalty): EnakPoint & EnakCoin" (#32)

This reverts commit 4e24f9bbb0.

internal/service/spin_game_service.go

@@ -6,7 +6,6 @@ import (
 
 	"apskel-pos-be/internal/models"
 	"apskel-pos-be/internal/processor"
-	"apskel-pos-be/internal/repository"
 
 	"github.com/google/uuid"
 )
@@ -17,13 +16,11 @@ type SpinGameService interface {
 
 type spinGameService struct {
 	gamePlayProcessor *processor.GamePlayProcessor
-	txManager         *repository.TxManager
 }
 
-func NewSpinGameService(gamePlayProcessor *processor.GamePlayProcessor, txManager *repository.TxManager) SpinGameService {
+func NewSpinGameService(gamePlayProcessor *processor.GamePlayProcessor) SpinGameService {
 	return &spinGameService{
 		gamePlayProcessor: gamePlayProcessor,
-		txManager:         txManager,
 	}
 }
 
@@ -45,28 +42,13 @@ func (s *spinGameService) PlaySpinGame(ctx context.Context, customerID string, r
 		return nil, fmt.Errorf("invalid customer ID format: %w", err)
 	}
 
-	// Use transaction to ensure consistency
-	var playResponse *models.PlayGameResponse
-	err = s.txManager.WithTransaction(ctx, func(txCtx context.Context) error {
-		// Create play game request
-		playGameReq := &models.PlayGameRequest{
-			GameID:     spinID,
-			CustomerID: customerUUID,
-			TokenUsed:  1, // Default to 1 token per spin
-		}
-
-		// Play the game within transaction
-		var playErr error
-		playResponse, playErr = s.gamePlayProcessor.PlayGame(txCtx, playGameReq)
-		if playErr != nil {
-			return fmt.Errorf("failed to play spin game: %w", playErr)
-		}
-
-		return nil
+	// PlayGame runs its own transaction and charges the game's coin_cost in EnakCoin.
+	playResponse, err := s.gamePlayProcessor.PlayGame(ctx, &models.PlayGameRequest{
+		GameID:     spinID,
+		CustomerID: customerUUID,
 	})
-
 	if err != nil {
-		return nil, err
+		return nil, fmt.Errorf("failed to play spin game: %w", err)
 	}
 
 	// Convert prize to customer-facing format
@@ -88,9 +70,9 @@ func (s *spinGameService) PlaySpinGame(ctx context.Context, customerID string, r
 		Status:  "SUCCESS",
 		Message: "Spin game completed successfully.",
 		Data: &models.SpinGameResponseData{
-			GamePlay:        playResponse.GamePlay,
-			PrizeWon:        customerPrize,
-			TokensRemaining: playResponse.TokensRemaining,
+			GamePlay:       playResponse.GamePlay,
+			PrizeWon:       customerPrize,
+			CoinsRemaining: playResponse.CoinsRemaining,
 		},
 	}