Fix write connection reconnection issues (#2850)

Co-authored-by: Felanbird <41973452+Felanbird@users.noreply.github.com>
Co-authored-by: pajlada <rasmus.karlsson@pajlada.com>

src/providers/irc/IrcConnection2.hpp

@@ -4,6 +4,7 @@
 
 #include <IrcConnection>
 #include <QTimer>
+#include <chrono>
 
 namespace chatterino {
 
@@ -12,14 +13,27 @@ class IrcConnection : public Communi::IrcConnection
 public:
     IrcConnection(QObject *parent = nullptr);
 
-    pajlada::Signals::NoArgSignal reconnectRequested;
+    // Signal to notify that we're unexpectedly no longer connected, either due
+    // to a connection error or if we think we've timed out. It's up to the
+    // receiver to trigger a reconnect, if desired
+    pajlada::Signals::Signal<bool> connectionLost;
+
+    // Request a reconnect with a minimum interval between attempts.
+    pajlada::Signals::NoArgSignal smartReconnect;
+
+    virtual void open();
+    virtual void close();
 
 private:
     QTimer pingTimer_;
     QTimer reconnectTimer_;
     std::atomic<bool> recentlyReceivedMessage_{true};
+    std::chrono::steady_clock::time_point lastConnected_;
 
-    // waitingForPong_ is set to true when we send a PING message, and back to false when we receive the matching PONG response
+    std::atomic<bool> expectConnectionLoss_{false};
+
+    // waitingForPong_ is set to true when we send a PING message, and back to
+    // false when we receive the matching PONG response
     std::atomic<bool> waitingForPong_{false};
 };