call wait_for_confirmations after send_taker_spends_maker_payment…

… method in taker_swap.rs

mm2src/mm2_main/src/lp_swap/taker_swap.rs

@@ -1824,6 +1824,28 @@ impl TakerSwap {
 
         let tx_hash = transaction.tx_hash_as_bytes();
         info!("Maker payment spend tx {:02x}", tx_hash);
+
+        // we should wait for only one confirmation to make sure spend maker payment transaction is not failed
+        let confirmations = std::cmp::min(1, self.r().data.maker_payment_confirmations);
+        let confirm_maker_payment_spend_input = ConfirmPaymentInput {
+            payment_tx: transaction.tx_hex(),
+            confirmations,
+            requires_nota: false,
+            wait_until: self.wait_refund_until(),
+            check_every: WAIT_CONFIRM_INTERVAL_SEC,
+        };
+        let wait_fut = self
+            .maker_coin
+            .wait_for_confirmations(confirm_maker_payment_spend_input);
+        if let Err(err) = wait_fut.compat().await {
+            return Ok((Some(TakerSwapCommand::Finish), vec![
+                TakerSwapEvent::MakerPaymentSpendFailed(
+                    ERRL!("!wait for maker payment spend confirmations: {}", err).into(),
+                ),
+            ]));
+        }
+        info!("Maker payment spend confirmed");
+
         let tx_ident = TransactionIdentifier {
             tx_hex: BytesJson::from(transaction.tx_hex()),
             tx_hash,