(BE-58,,59): extend db schema & build stock transfer api

- Extend DB schema for stock transfers
- Build stock transfer API (create,)

internal/modules/inventory/transfers/dto/transfer.dto.go

@@ -0,0 +1,64 @@
+package dto
+
+import (
+	"time"
+
+	entity "gitlab.com/mbugroup/lti-api.git/internal/entities"
+)
+
+// === DTO Structs ===
+
+type TransferBaseDTO struct {
+	Id                     uint64 `json:"id"`
+	TransferReason         string `json:"transfer_reason"`
+	TransferDate           string `json:"transfer_date"`
+	SourceWarehouseId      uint64 `json:"source_warehouse_id"`
+	DestinationWarehouseId uint64 `json:"destination_warehouse_id"`
+}
+
+type TransferListDTO struct {
+	TransferBaseDTO
+	CreatedBy uint64    `json:"created_by"`
+	CreatedAt time.Time `json:"created_at"`
+	UpdatedAt time.Time `json:"updated_at"`
+}
+
+type TransferDetailDTO struct {
+	TransferListDTO
+	// Tambahkan detail produk, deliveries, dsb jika perlu
+}
+
+// === Mapper Functions ===
+
+func ToTransferBaseDTO(e entity.StockTransfer) TransferBaseDTO {
+	return TransferBaseDTO{
+		Id:                     e.Id,
+		TransferReason:         e.Reason, // atau field lain sesuai entity
+		TransferDate:           e.CreatedAt.Format("2006-01-02"),
+		SourceWarehouseId:      e.FromWarehouseId,
+		DestinationWarehouseId: e.ToWarehouseId,
+	}
+}
+
+func ToTransferListDTO(e entity.StockTransfer) TransferListDTO {
+	return TransferListDTO{
+		TransferBaseDTO: ToTransferBaseDTO(e),
+		CreatedBy:       e.CreatedBy,
+		CreatedAt:       e.CreatedAt,
+		UpdatedAt:       e.UpdatedAt,
+	}
+}
+
+func ToTransferListDTOs(e []entity.StockTransfer) []TransferListDTO {
+	result := make([]TransferListDTO, len(e))
+	for i, r := range e {
+		result[i] = ToTransferListDTO(r)
+	}
+	return result
+}
+
+func ToTransferDetailDTO(e entity.StockTransfer) TransferDetailDTO {
+	return TransferDetailDTO{
+		TransferListDTO: ToTransferListDTO(e),
+	}
+}