feat(BE): enhance closing service and repository with actual usage cost calculations and egg weight tracking

internal/modules/closings/services/closing.service.go

@@ -426,11 +426,15 @@ func (s closingService) GetClosingKeuangan(c *fiber.Ctx, projectFlockID uint) (*
 		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to fetch budgets")
 	}
 
-	purchaseItems, err := s.PurchaseRepo.GetItemsByProjectFlockID(c.Context(), projectFlockID)
-	if err != nil && !errors.Is(err, gorm.ErrRecordNotFound) {
-		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to fetch purchase items")
+	// Get actual usage cost instead of purchase items
+	actualUsageRows, err := s.Repository.GetActualUsageCostByProjectFlockID(c.Context(), projectFlockID)
+	if err != nil {
+		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to fetch actual usage cost")
 	}
 
+	// Convert actual usage rows to pseudo purchase items
+	purchaseItems := s.convertActualUsageToPurchaseItems(c.Context(), actualUsageRows)
+
 	realizations, err := s.ExpenseRealizationRepo.GetByProjectFlockID(c.Context(), projectFlockID)
 	if err != nil {
 		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to fetch realizations")
@@ -455,6 +459,11 @@ func (s closingService) GetClosingKeuangan(c *fiber.Ctx, projectFlockID uint) (*
 		s.Log.Warnf("GetProductionWeightAndQtyByProjectFlockID error: %v", err)
 	}
 
+	totalEggWeightKg, err := s.RecordingRepo.GetTotalEggProductionWeightByProjectFlockID(c.Context(), projectFlockID)
+	if err != nil {
+		s.Log.Warnf("GetTotalEggProductionWeightByProjectFlockID error: %v", err)
+	}
+
 	totalDepletion, err := s.RecordingRepo.GetTotalDepletionByProjectFlockID(c.Context(), projectFlockID)
 	if err != nil {
 		s.Log.Warnf("GetTotalDepletionByProjectFlockID error: %v", err)
@@ -468,6 +477,7 @@ func (s closingService) GetClosingKeuangan(c *fiber.Ctx, projectFlockID uint) (*
 		DeliveryProducts:     deliveryProducts,
 		Chickins:             chickins,
 		TotalWeightProduced:  totalWeightProduced,
+		TotalEggWeightKg:     totalEggWeightKg,
 		TotalDepletion:       totalDepletion,
 	}
 
@@ -476,8 +486,6 @@ func (s closingService) GetClosingKeuangan(c *fiber.Ctx, projectFlockID uint) (*
 	return &report, nil
 }
 
-// GetExpeditionHPP menghitung HPP ekspedisi per vendor untuk sebuah project flock.
-// Jika projectFlockKandangID tidak nil, maka hanya data untuk kandang tersebut yang dihitung.
 func (s closingService) GetExpeditionHPP(c *fiber.Ctx, projectFlockID uint, projectFlockKandangID *uint) (*dto.ExpeditionHPPDTO, error) {
 	if projectFlockID == 0 {
 		return nil, fiber.NewError(fiber.StatusBadRequest, "Invalid project flock id")
@@ -778,5 +786,54 @@ func closestFcrValues(standards []entity.FcrStandard, averageWeight float64) (fl
 	}
 
 	return closest.Mortality, closest.FcrNumber
-
+}
+
+func (s closingService) convertActualUsageToPurchaseItems(ctx context.Context, actualUsageRows []repository.ActualUsageCostRow) []entity.PurchaseItem {
+	if len(actualUsageRows) == 0 {
+		return []entity.PurchaseItem{}
+	}
+
+	// Collect all product IDs
+	productIDs := make([]uint, len(actualUsageRows))
+	for i, row := range actualUsageRows {
+		productIDs[i] = row.ProductID
+	}
+
+	// Fetch products with flags from repository
+	products, err := s.Repository.GetProductsWithFlagsByIDs(ctx, productIDs)
+	if err != nil {
+		s.Log.Warnf("Failed to fetch products for actual usage: %v", err)
+		products = []entity.Product{}
+	}
+
+	// Create product map
+	productMap := make(map[uint]*entity.Product)
+	for i := range products {
+		productMap[products[i].Id] = &products[i]
+	}
+
+	// Convert to pseudo purchase items
+	purchaseItems := make([]entity.PurchaseItem, 0, len(actualUsageRows))
+	for _, row := range actualUsageRows {
+		product := productMap[row.ProductID]
+
+		// Skip if product not found
+		if product == nil {
+			s.Log.Warnf("Product ID %d not found for actual usage", row.ProductID)
+			continue
+		}
+
+		purchaseItem := entity.PurchaseItem{
+			Id:         0, // Pseudo item, no ID
+			ProductId:  row.ProductID,
+			TotalQty:   row.TotalQty,
+			TotalPrice: row.TotalPrice,
+			Price:      row.AveragePrice,
+			Product:    product,
+		}
+
+		purchaseItems = append(purchaseItems, purchaseItem)
+	}
+
+	return purchaseItems
 }