feat(BE): integrate FIFO service for stock adjustments and transfers

- Added FIFO service integration in the adjustments module to manage stockable and usable items for adjustments.
- Created a new repository for adjustment stocks to handle database operations.
- Enhanced the adjustment service to track stock adjustments using FIFO logic for both increase and decrease operations.
- Updated product warehouse DTOs and repositories to include project flock information.
- Implemented FIFO logic in the transfer module to manage stock transfers between warehouses.
- Added integration tests for FIFO operations in stock transfers, ensuring correct stock consumption and replenishment.

internal/modules/inventory/transfers/module.go

@@ -18,6 +18,8 @@ import (
 	rStockLogs "gitlab.com/mbugroup/lti-api.git/internal/modules/shared/repositories"
 	rUser "gitlab.com/mbugroup/lti-api.git/internal/modules/users/repositories"
 	sUser "gitlab.com/mbugroup/lti-api.git/internal/modules/users/services"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils/fifo"
 )
 
 type TransferModule struct{}
@@ -34,13 +36,51 @@ func (TransferModule) RegisterRoutes(router fiber.Router, db *gorm.DB, validate
 	warehouseRepo := rWarehouse.NewWarehouseRepository(db)
 	projectFlockKandangRepo := rProjectFlockKandang.NewProjectFlockKandangRepository(db)
 	documentRepo := commonRepo.NewDocumentRepository(db)
+	stockAllocRepo := commonRepo.NewStockAllocationRepository(db)
 
 	documentSvc, err := commonSvc.NewDocumentServiceFromConfig(context.Background(), documentRepo)
 	if err != nil {
 		panic(err)
 	}
 
-	transferService := sTransfer.NewTransferService(validate, stockTransferRepo, stockTransferDetailRepo, stockTransferDeliveryRepo, StockTransferDeliveryItemRepo, stockLogsRepo, productWarehouseRepo, supplierRepo, warehouseRepo, projectFlockKandangRepo, documentSvc)
+	// Initialize FIFO Service
+	fifoService := commonSvc.NewFifoService(db, stockAllocRepo, productWarehouseRepo, utils.Log)
+
+	// Register Transfer as Stockable (adds stock to destination warehouse)
+	err = fifoService.RegisterStockable(fifo.StockableConfig{
+		Key:   fifo.StockableKey("STOCK_TRANSFER_IN"),
+		Table: "stock_transfer_details",
+		Columns: fifo.StockableColumns{
+			ID:                 "id",
+			ProductWarehouseID: "dest_product_warehouse_id",
+			TotalQuantity:      "total_qty",
+			TotalUsedQuantity:  "total_used",
+			CreatedAt:          "created_at",
+		},
+		OrderBy: []string{"created_at ASC", "id ASC"},
+	})
+	if err != nil {
+		panic(err)
+	}
+
+	// Register Transfer as Usable (consumes stock from source warehouse)
+	err = fifoService.RegisterUsable(fifo.UsableConfig{
+		Key:   fifo.UsableKey("STOCK_TRANSFER_OUT"),
+		Table: "stock_transfer_details",
+		Columns: fifo.UsableColumns{
+			ID:                 "id",
+			ProductWarehouseID: "source_product_warehouse_id",
+			UsageQuantity:      "usage_qty",
+			PendingQuantity:    "pending_qty",
+			CreatedAt:          "created_at",
+		},
+		OrderBy: []string{"created_at ASC", "id ASC"},
+	})
+	if err != nil {
+		panic(err)
+	}
+
+	transferService := sTransfer.NewTransferService(validate, stockTransferRepo, stockTransferDetailRepo, stockTransferDeliveryRepo, StockTransferDeliveryItemRepo, stockLogsRepo, productWarehouseRepo, supplierRepo, warehouseRepo, projectFlockKandangRepo, documentSvc, fifoService)
 	userService := sUser.NewUserService(userRepo, validate)
 
 	TransferRoutes(router, userService, transferService)