accounts: don't error out on payment not initiated

It can happen that we see the payment request for a payment coming in,
register it, but then it is failed on the lnd level and basically never
exists in the DB.
In that case we can just stop tracking the payment.

Author: guggero

accounts/service.go

@@ -2,12 +2,14 @@ package accounts
 
 import (
 	"context"
+	"errors"
 	"fmt"
 	"sync"
 	"time"
 
 	"github.com/btcsuite/btcd/chaincfg"
 	"github.com/lightninglabs/lndclient"
+	"github.com/lightningnetwork/lnd/channeldb"
 	invpkg "github.com/lightningnetwork/lnd/invoices"
 	"github.com/lightningnetwork/lnd/lnrpc"
 	"github.com/lightningnetwork/lnd/lntypes"
@@ -501,6 +503,22 @@ func (s *InterceptorService) TrackPayment(id AccountID, hash lntypes.Hash,
 				}
 
 			case err := <-errChan:
+				// If the payment wasn't initiated, we can't
+				// track it really. We'll try again on next
+				// startup, to make sure we don't miss any
+				// payments.
+				if errors.Is(
+					err, channeldb.ErrPaymentNotInitiated,
+				) {
+					log.Debugf("Payment %v not initiated, "+
+						"stopping tracking", hash)
+
+					return
+				}
+
+				log.Errorf("Received error from TrackPayment "+
+					"RPC for payment %v: %v", hash, err)
+
 				if err != nil {
 					select {
 					case s.mainErrChan <- err: