Delete transaction when amount is zero

server/transaction.go

@@ -79,13 +79,22 @@ func (h *Handler) newTransaction(c *gin.Context) {
 }
 
 func (h *Handler) UpdateTransaction(payload NewTransactionPayload, amount numeric.Numeric, transactionID string, c *gin.Context) {
+	transactionUUID := uuid.MustParse(transactionID)
+	if amount.IsZero() {
+		err := h.Service.DeleteTransaction(c.Request.Context(), transactionUUID)
+		if err != nil {
+			c.AbortWithError(http.StatusInternalServerError, fmt.Errorf("delete transaction: %w", err))
+		}
+		return
+	}
+
 	editTransaction := postgres.UpdateTransactionParams{
 		Memo:       payload.Memo,
 		Date:       time.Time(payload.Date),
 		Amount:     amount,
 		PayeeID:    payload.Payee.ID,
 		CategoryID: payload.CategoryID,
-		ID:         uuid.MustParse(transactionID),
+		ID:         transactionUUID,
 	}
 
 	err := h.Service.UpdateTransaction(c.Request.Context(), editTransaction)