loading logic implemented but broken (very funky and sometimes even out of contact)

src/chat_gui4.hpp

@@ -10,6 +10,9 @@
 #include "./file_selector.hpp"
 #include "./send_image_popup.hpp"
 
+// HACK: move to public msg api?
+#include "./fragment_store/message_fragment_store.hpp"
+
 #include <entt/container/dense_map.hpp>
 
 #include <cstdint>
@@ -32,7 +35,12 @@ class ChatGui4 {
 	FileSelector _fss;
 	SendImagePopup _sip;
 
+	// TODO: refactor this to allow multiple open contacts
 	std::optional<Contact3> _selected_contact;
+	// set to the ts of the newest rendered msg
+	Message3Handle _view_begin{};
+	// set to the ts of the oldest rendered msg
+	Message3Handle _view_end{};
 
 	// TODO: per contact
 	std::string _text_input_buffer;