Improve Twitch PubSub connection reliability (#3643)

Co-authored-by: Rasmus Karlsson <rasmus.karlsson@pajlada.com>

src/providers/twitch/PubSubHelpers.hpp

@@ -0,0 +1,54 @@
+#pragma once
+
+#include <QJsonObject>
+#include <boost/asio.hpp>
+#include <boost/asio/steady_timer.hpp>
+#include <memory>
+#include "common/QLogging.hpp"
+#include "util/RapidjsonHelpers.hpp"
+
+namespace chatterino {
+
+class TwitchAccount;
+struct ActionUser;
+
+// Create timer using given ioService
+template <typename Duration, typename Callback>
+void runAfter(boost::asio::io_service &ioService, Duration duration,
+              Callback cb)
+{
+    auto timer = std::make_shared<boost::asio::steady_timer>(ioService);
+    timer->expires_from_now(duration);
+
+    timer->async_wait([timer, cb](const boost::system::error_code &ec) {
+        if (ec)
+        {
+            qCDebug(chatterinoPubSub)
+                << "Error in runAfter:" << ec.message().c_str();
+            return;
+        }
+
+        cb(timer);
+    });
+}
+
+// Use provided timer
+template <typename Duration, typename Callback>
+void runAfter(std::shared_ptr<boost::asio::steady_timer> timer,
+              Duration duration, Callback cb)
+{
+    timer->expires_from_now(duration);
+
+    timer->async_wait([timer, cb](const boost::system::error_code &ec) {
+        if (ec)
+        {
+            qCDebug(chatterinoPubSub)
+                << "Error in runAfter:" << ec.message().c_str();
+            return;
+        }
+
+        cb(timer);
+    });
+}
+
+}  // namespace chatterino