From b28b3ef4ff9041b88292cc2c9ee301285813e3aa Mon Sep 17 00:00:00 2001
From: "nicolas.dorier" <nicolas.dorier@gmail.com>
Date: Wed, 14 Mar 2018 20:10:04 +0900
Subject: [PATCH] Fix: Invoice can't be paid in lightning anymore if lightning
 server sent error

---
 BTCPayServer/BTCPayServer.csproj                  |  2 +-
 BTCPayServer/Payments/Lightning/ChargeListener.cs | 13 +++++--------
 2 files changed, 6 insertions(+), 9 deletions(-)

diff --git a/BTCPayServer/BTCPayServer.csproj b/BTCPayServer/BTCPayServer.csproj
index 74ef8db49..95181a9e3 100644
--- a/BTCPayServer/BTCPayServer.csproj
+++ b/BTCPayServer/BTCPayServer.csproj
@@ -2,7 +2,7 @@
   <PropertyGroup>
     <OutputType>Exe</OutputType>
     <TargetFramework>netcoreapp2.0</TargetFramework>
-		<Version>1.0.1.48</Version>
+		<Version>1.0.1.49</Version>
     <NoWarn>NU1701,CA1816,CA1308,CA1810,CA2208</NoWarn>
   </PropertyGroup>
   <ItemGroup>
diff --git a/BTCPayServer/Payments/Lightning/ChargeListener.cs b/BTCPayServer/Payments/Lightning/ChargeListener.cs
index a3e1fe964..c2b7f6e6c 100644
--- a/BTCPayServer/Payments/Lightning/ChargeListener.cs
+++ b/BTCPayServer/Payments/Lightning/ChargeListener.cs
@@ -60,9 +60,6 @@ namespace BTCPayServer.Payments.Lightning
 
         private async Task EnsureListening(string invoiceId, bool poll)
         {
-            if (Listening(invoiceId))
-                return;
-
             var invoice = await _InvoiceRepository.GetInvoice(null, invoiceId);
             foreach (var paymentMethod in invoice.GetPaymentMethods(_NetworkProvider)
                                                           .Where(c => c.GetId().PaymentType == PaymentTypes.LightningLike))
@@ -98,7 +95,10 @@ namespace BTCPayServer.Payments.Lightning
                         continue;
                 }
 
-                StartListening(listenedInvoice);
+                if (!Listening(invoiceId))
+                {
+                    StartListening(listenedInvoice);
+                }
             }
         }
 
@@ -232,10 +232,7 @@ namespace BTCPayServer.Payments.Lightning
                     _ListeningLightning.Add(listen);
                     listen.ContinueWith(_ =>
                     {
-                        lock (_ListenedInvoiceByLightningUrl)
-                        {
-                            _ListeningLightning.Remove(listen);
-                        }
+                        DoneListening(listenedInvoice);
                     }, TaskScheduler.Default);
                 }
                 _ListenedInvoiceByLightningUrl.Add(listenedInvoice.Uri, listenedInvoice);