add counting hpp-expedition by project

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

@@ -31,6 +31,7 @@ type ClosingService interface {
 	GetClosingSummary(ctx *fiber.Ctx, projectFlockID uint) (*dto.ClosingSummaryDTO, error)
 	GetOverhead(ctx *fiber.Ctx, projectFlockID uint) (*dto.OverheadListDTO, error)
 	GetClosingSapronak(ctx *fiber.Ctx, projectFlockID uint, params *validation.SapronakQuery) ([]dto.ClosingSapronakItemDTO, int64, error)
+	GetExpeditionHPP(ctx *fiber.Ctx, projectFlockID uint, projectFlockKandangID *uint) (*dto.ExpeditionHPPDTO, error)
 }
 
 type closingService struct {
@@ -379,3 +380,45 @@ func (s closingService) GetOverhead(c *fiber.Ctx, projectFlockID uint) (*dto.Ove
 
 	return &result, 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")
+	}
+
+	rows, err := s.Repository.GetExpeditionHPP(c.Context(), projectFlockID, projectFlockKandangID)
+	if err != nil {
+		s.Log.Errorf("Failed to get expedition HPP for project flock %d: %+v", projectFlockID, err)
+		return nil, fiber.NewError(fiber.StatusInternalServerError, "Failed to fetch expedition HPP")
+	}
+
+	expeditionCosts := make([]dto.ExpeditionCostItemDTO, 0, len(rows))
+	var totalHPP float64
+
+	for idx, row := range rows {
+		unitPrice := 0.0
+		if row.Qty > 0 {
+			unitPrice = row.TotalAmount / row.Qty
+		}
+
+		expeditionCosts = append(expeditionCosts, dto.ExpeditionCostItemDTO{
+			Id:                   uint64(idx + 1),
+			ExpeditionVendorID:   row.SupplierID,
+			ExpeditionVendorName: row.SupplierName,
+			Qty:                  row.Qty,
+			UnitPrice:            unitPrice,
+			HPPAmount:            row.TotalAmount,
+		})
+
+		totalHPP += row.TotalAmount
+	}
+
+	result := &dto.ExpeditionHPPDTO{
+		ExpeditionCosts: expeditionCosts,
+		TotalHPPAmount:  totalHPP,
+	}
+
+	return result, nil
+}