feat(BE-58,59,60,61): implement stock transfer API, validation, audit log, and schema update

- Build stock transfer API with nested details, deliveries, and items
- Extend DB schema for stock transfers
- Implement validation for transfer request and stock
- Prepare/implement transfer audit log structure
- Preload all relations for complete response
- Update DTOs for nested response
- Remove redundant root fields, use relation objects

internal/modules/inventory/transfers/services/transfer.service.go

@@ -3,6 +3,7 @@ package service
 import (
 	"errors"
 	"fmt"
+	"strings"
 
 	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
 	rProductWarehouse "gitlab.com/mbugroup/lti-api.git/internal/modules/inventory/product-warehouses/repositories"
@@ -46,9 +47,13 @@ func NewTransferService(validate *validator.Validate, stockTransferRepo rStockTr
 		ProductWarehouseRepo:          productWarehouseRepo,
 	}
 }
-
 func (s transferService) withRelations(db *gorm.DB) *gorm.DB {
-	return db.Preload("CreatedUser")
+	return db.
+		Preload("CreatedUser").
+		Preload("FromWarehouse").
+		Preload("ToWarehouse").
+		Preload("Details").
+		Preload("Deliveries.Items")
 }
 
 func (s transferService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.StockTransfer, int64, error) {
@@ -56,26 +61,37 @@ func (s transferService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entit
 		return nil, 0, err
 	}
 
-	// offset := (params.Page - 1) * params.Limit
+	offset := (params.Page - 1) * params.Limit
 
-	// transfers, total, err := s.Repository.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
-	// 	db = s.withRelations(db)
-	// 	if params.Search != "" {
-	// 		return db.Where("name LIKE ?", "%"+params.Search+"%")
-	// 	}
-	// 	return db.Order("created_at DESC").Order("updated_at DESC")
-	// })
+	transfers, total, err := s.StockTransferRepo.GetAll(c.Context(), offset, params.Limit, func(db *gorm.DB) *gorm.DB {
+		db = db.Preload("CreatedUser").Preload("FromWarehouse").Preload("ToWarehouse").Preload("Details").Preload("Deliveries.Items")
+		if params.Search != "" {
+			db = db.Where("movement_number LIKE ?", "%"+strings.TrimSpace(params.Search)+"%")
+		}
+		return db.Order("created_at DESC").Order("updated_at DESC")
+	})
+
+	if err != nil {
+		return nil, 0, err
+	}
+
+	s.Log.Infof("Retrieved %d transfers", len(transfers))
+
+	return transfers, total, nil
 
-	// if err != nil {
-	// 	s.Log.Errorf("Failed to get transfers: %+v", err)
-	// 	return nil, 0, err
-	// }
-	return nil, 0, nil
 }
 
 func (s transferService) GetOne(c *fiber.Ctx, id uint) (*entity.StockTransfer, error) {
-
-	return nil, nil
+	var transfer entity.StockTransfer
+	db := s.StockTransferRepo.DB().WithContext(c.Context())
+	db = db.Preload("CreatedUser").Preload("FromWarehouse").Preload("ToWarehouse").Preload("Details").Preload("Deliveries.Items")
+	if err := db.First(&transfer, id).Error; err != nil {
+		if errors.Is(err, gorm.ErrRecordNotFound) {
+			return nil, fiber.NewError(fiber.StatusNotFound, "Transfer not found")
+		}
+		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to get transfer")
+	}
+	return &transfer, nil
 }
 
 func (s *transferService) CreateOne(c *fiber.Ctx, req *validation.TransferRequest) (*entity.StockTransfer, error) {
@@ -160,16 +176,31 @@ func (s *transferService) CreateOne(c *fiber.Ctx, req *validation.TransferReques
 			s.Log.Errorf("Failed to create stock transfer deliveries: %+v", err)
 			return err
 		}
-
 		// tambahkan insert ke delivery items sebagai fivot
+
+		detailMap := make(map[uint64]uint64)
+		for _, d := range details {
+			detailMap[d.ProductId] = d.Id
+		}
+
 		var deliveryItems []*entity.StockTransferDeliveryItem
-		for i, delivery := range req.Deliveries {
-			for _, item := range delivery.Products {
-				deliveryItems = append(deliveryItems, &entity.StockTransferDeliveryItem{
-					StockTransferDeliveryId: deliveries[i].Id,
-					StockTransferDetailId:   uint64(item.ProductID),
-					Quantity:                item.ProductQty,
-				})
+
+		for _, delivery := range deliveries {
+			for _, item := range req.Deliveries {
+				if item.Document == delivery.DocumentPath {
+					for _, prod := range item.Products {
+						detailID, ok := detailMap[uint64(prod.ProductID)]
+						if !ok {
+							return fmt.Errorf("produk %d tidak ditemukan di detail", prod.ProductID)
+						}
+
+						deliveryItems = append(deliveryItems, &entity.StockTransferDeliveryItem{
+							StockTransferDeliveryId: delivery.Id,
+							StockTransferDetailId:   detailID,
+							Quantity:                prod.ProductQty,
+						})
+					}
+				}
 			}
 		}
 		if err := s.StockTransferDeliveryItemRepo.WithTx(tx).CreateMany(c.Context(), deliveryItems, nil); err != nil {
@@ -225,8 +256,9 @@ func (s *transferService) CreateOne(c *fiber.Ctx, req *validation.TransferReques
 				return err
 			}
 			s.Log.Infof("Destination product warehouse updated: %+v", destPW.Id)
-		}
 
+			
+		}
 
 		return nil
 	})