optimize chatter list (#2814)

* optimize chatter list

* changelog

* Fix tests

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

src/common/ChannelChatters.hpp

@@ -1,11 +1,10 @@
 #pragma once
 
 #include "common/Channel.hpp"
+#include "common/ChatterSet.hpp"
 #include "common/UniqueAccess.hpp"
-#include "common/UsernameSet.hpp"
-#include "util/QStringHash.hpp"
-
 #include "lrucache/lrucache.hpp"
+#include "util/QStringHash.hpp"
 
 #include <QRgb>
 
@@ -17,14 +16,14 @@ public:
     ChannelChatters(Channel &channel);
     virtual ~ChannelChatters() = default;  // add vtable
 
-    SharedAccessGuard<const UsernameSet> accessChatters() const;
+    SharedAccessGuard<const ChatterSet> accessChatters() const;
 
     void addRecentChatter(const QString &user);
     void addJoinedUser(const QString &user);
     void addPartedUser(const QString &user);
-    void setChatters(UsernameSet &&set);
     const QColor getUserColor(const QString &user);
     void setUserColor(const QString &user, const QColor &color);
+    void updateOnlineChatters(const std::unordered_set<QString> &chatters);
 
 private:
     static constexpr int maxChatterColorCount = 5000;
@@ -32,7 +31,7 @@ private:
     Channel &channel_;
 
     // maps 2 char prefix to set of names
-    UniqueAccess<UsernameSet> chatters_;
+    UniqueAccess<ChatterSet> chatters_;
     UniqueAccess<cache::lru_cache<QString, QRgb>> chatterColors_;
 
     // combines multiple joins/parts into one message