From f50e6ced719b8940f29b9611944cdedbbbfd0fb9 Mon Sep 17 00:00:00 2001
From: LightningTipBot <88730856+LightningTipBot@users.noreply.github.com>
Date: Wed, 8 Dec 2021 22:22:11 +0100
Subject: [PATCH] test mutex (#158)

Co-authored-by: callebtc <93376500+callebtc@users.noreply.github.com>
---
 internal/telegram/interceptor.go | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/internal/telegram/interceptor.go b/internal/telegram/interceptor.go
index f48c5fa..3d2e96d 100644
--- a/internal/telegram/interceptor.go
+++ b/internal/telegram/interceptor.go
@@ -47,7 +47,9 @@ func (bot TipBot) unlockInterceptor(ctx context.Context, i interface{}) (context
 	user := getTelegramUserFromInterface(i)
 	if user != nil {
 		handlerMapMutex.Lock()
-		handlerMutex[user.ID].Unlock()
+		if handlerMutex[user.ID] != nil {
+			handlerMutex[user.ID].Unlock()
+		}
 		handlerMapMutex.Unlock()
 	}
 	return ctx, nil
@@ -58,10 +60,10 @@ func (bot TipBot) lockInterceptor(ctx context.Context, i interface{}) (context.C
 	user := getTelegramUserFromInterface(i)
 	if user != nil {
 		handlerMapMutex.Lock()
-		defer handlerMapMutex.Unlock()
 		if handlerMutex[user.ID] == nil {
 			handlerMutex[user.ID] = &sync.Mutex{}
 		}
+		handlerMapMutex.Unlock()
 		handlerMutex[user.ID].Lock()
 		return ctx, nil
 	}