Fix missing noterow vectors for online highscore

when you want to view only the offset plot, we need noterow vectors so we check to see if its possible to construct them from the timestamps the same way it is done for replays

src/Etterna/Models/Misc/HighScore.cpp

@@ -14,6 +14,10 @@
 #include <fstream>
 #include <sstream>
 #include "Etterna/Singletons/CryptManager.h"
+#include "Etterna/Singletons/GameState.h"
+#include "Etterna/Models/NoteData/NoteData.h"
+#include "Etterna/Models/Misc/TimingData.h"
+#include "Etterna/Models/StepsAndStyles/Steps.h"
 #include "RageUtil/File/RageFileManager.h"
 
 const string BASIC_REPLAY_DIR =
@@ -1708,10 +1712,46 @@ class LunaHighScore : public Luna<HighScore>
 	{
 		auto* v = &(p->GetNoteRowVector());
 		bool loaded = v->size() > 0;
+
+		auto timestamps = p->GetCopyOfSetOnlineReplayTimestampVector();
+
 		if (loaded || p->LoadReplayData()) {
+			// this is a local highscore with a local replay
+			// easy to just output the noterows loaded
 			LuaHelpers::CreateTableFromArray((*v), L);
-		} else
+		} else if (!timestamps.empty() && v->empty()) {
+			// this is a legacy online replay
+			// missing rows but with timestamps instead
+			// we can try our best to show the noterows by approximating
+			GAMESTATE->SetProcessedTimingData(
+			  GAMESTATE->m_pCurSteps->GetTimingData());
+			auto* td = GAMESTATE->m_pCurSteps->GetTimingData();
+			auto nd = GAMESTATE->m_pCurSteps->GetNoteData();
+			auto nerv = nd.BuildAndGetNerv();
+			auto sdifs = td->BuildAndGetEtaner(nerv);
+			vector<int> noterows;
+			for (auto t : timestamps) {
+				auto timestamptobeat =
+				  td->GetBeatFromElapsedTime(t * p->GetMusicRate());
+				auto somenumberscaledbyoffsets =
+				  sdifs[0] - (timestamps[0] * p->GetMusicRate());
+				timestamptobeat += somenumberscaledbyoffsets;
+				auto noterowfrombeat = BeatToNoteRow(timestamptobeat);
+				noterows.emplace_back(noterowfrombeat);
+			}
+			int noterowoffsetter = nerv[0] - noterows[0];
+			for (auto& noterowwithoffset : noterows)
+				noterowwithoffset += noterowoffsetter;
+			GAMESTATE->SetProcessedTimingData(nullptr);
+			p->SetNoteRowVector(noterows);
+
+			v = &(p->GetNoteRowVector()); // uhh
+
+			LuaHelpers::CreateTableFromArray((*v), L);
+		} else {
+			// ok we got nothing, just throw null
 			lua_pushnil(L);
+		}
 		return 1;
 	}