feat(BE): add grand total calculation to ExpenseListDTO and update CreateOne method in expense service

internal/modules/expenses/dto/expense.dto.go

@@ -9,6 +9,7 @@ import (
 	nonstockDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/master/nonstocks/dto"
 	supplierDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/master/suppliers/dto"
 	userDTO "gitlab.com/mbugroup/lti-api.git/internal/modules/users/dto"
+	"gitlab.com/mbugroup/lti-api.git/internal/utils"
 )
 
 // === DTO Structs ===
@@ -32,6 +33,7 @@ type ExpenseBaseDTO struct {
 
 type ExpenseListDTO struct {
 	ExpenseBaseDTO
+	GrandTotal     float64                          `json:"grand_total"`
 	CreatedUser    *userDTO.UserRelationDTO         `json:"created_user,omitempty"`
 	CreatedAt      time.Time                        `json:"created_at"`
 	UpdatedAt      time.Time                        `json:"updated_at"`
@@ -140,8 +142,11 @@ func ToExpenseListDTO(e entity.Expense) ExpenseListDTO {
 		latestApproval = &mapped
 	}
 
+	grandTotal := calculateGrandTotal(&e)
+
 	return ExpenseListDTO{
 		ExpenseBaseDTO: ToExpenseBaseDTO(&e),
+		GrandTotal:     grandTotal,
 		CreatedUser:    createdUser,
 		CreatedAt:      e.CreatedAt,
 		UpdatedAt:      e.UpdatedAt,
@@ -344,3 +349,25 @@ func ToKandangGroupDTO(pengajuans []ExpenseNonstockDTO, realisasi []ExpenseReali
 
 	return kandangs
 }
+
+func calculateGrandTotal(expense *entity.Expense) float64 {
+
+	useRealization := expense.LatestApproval != nil && expense.LatestApproval.StepNumber >= uint16(utils.ExpenseStepRealisasi)
+
+	if useRealization {
+
+		var total float64
+		for _, ns := range expense.Nonstocks {
+			if ns.Realization != nil {
+				total += ns.Realization.Qty * ns.Realization.Price
+			}
+		}
+		return total
+	}
+
+	var total float64
+	for _, ns := range expense.Nonstocks {
+		total += ns.Qty * ns.Price
+	}
+	return total
+}

internal/modules/expenses/services/expense.service.go

@@ -211,6 +211,7 @@ func (s *expenseService) CreateOne(c *fiber.Ctx, req *validation.Create) (*expen
 		if !hasKandang && req.Category == string(utils.ExpenseCategoryBOP) {
 			projectFlockRepoTx := projectFlockKandangRepo.NewProjectflockRepository(dbTransaction)
 			activeProjectFlocks, err := projectFlockRepoTx.GetActiveByLocationID(c.Context(), req.LocationID)
+
 			if err != nil {
 				return fiber.NewError(fiber.StatusInternalServerError, "Failed to get active project flocks for location")
 			}