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#include "sierrachart.h"

SCSFExport scsf_DebugFillCountChange(SCStudyInterfaceRef sc)
{
// --- SetDefaults Block ---
if (sc.SetDefaults)
{
sc.GraphName = "Debug Fill Count Change";
sc.StudyDescription = "Logs when sc.GetOrderFillArraySize() changes value compared to the previous call. Used to demonstrate potential instability after chart reloads.";
sc.AutoLoop = 0;
sc.UpdateAlways = 1;
sc.GraphRegion = 0;
sc.HideStudy = 1;
sc.MaintainTradeStatisticsAndTradesData = 1; // Essential for fill data

// Persistent variable for the last known fill count.
// Initialized to -1 to reliably detect the very first run.
sc.SetPersistentInt(1, -1); // PreviousFillCount

return;
}
// --- End SetDefaults ---

// --- Main Logic ---

// Optional: Skip checks during full recalc or data download
if (sc.IsFullRecalculation || sc.DownloadingHistoricalData)
{
return; // Data is definitely not stable during these phases
}

// Get persistent variable
int& PreviousFillCount = sc.GetPersistentInt(1);

// Get current fill count
int CurrentFillCount = sc.GetOrderFillArraySize();

// --- Check for Initialization or Change ---

// Case 1: First run initialization
if (PreviousFillCount == -1)
{
PreviousFillCount = CurrentFillCount; // Store initial value
SCString InitMsg;
InitMsg.Format("DebugFillCountChange: Initial fill count set to %d (at Index %d)", PreviousFillCount, sc.Index);
sc.AddMessageToLog(InitMsg, 0);
}
// Case 2: Regular check (Initialization complete)
else if (CurrentFillCount != PreviousFillCount)
{
// Change detected! Log the details.
SCString DbgMsg;
DbgMsg.Format(">>> Fill Count Changed! CurrentFills=%d, PrevFills=%d (Checked at Index %d)",
CurrentFillCount, PreviousFillCount, sc.Index
);
sc.AddMessageToLog(DbgMsg, 1); // Log with 1 for visibility

// Update the persistent state AFTER logging the change
PreviousFillCount = CurrentFillCount;
}
// Case 3: No change
// -> Do nothing

} // End scsf_DebugFillCountChange

2025-04-18 01:26:54.229 | Chart: ESM25-CME[M] 3 Min #1 | Study: Debug Fill Count Change | DebugFillCountChange: Initial fill count set to 10 (at Index 6409)
2025-04-18 01:26:54.234 | Socket (3) | Socket gracefully closed by remote side.
2025-04-18 01:26:54.234 | Socket (3) | Closed.
2025-04-18 01:27:04.302 | ESM25-CME[M] 10 Min #1 | Reloading chart.
2025-04-18 01:27:08.430 | ESM25-CME[M] 10 Min #1 | StartDateTimeForLoadingOrderFills: 00:00:00
2025-04-18 01:27:08.440 | ESM25-CME[M] 10 Min #1 | Chart data loading complete.
2025-04-18 01:27:08.456 | Chart: ESM25-CME[M] 10 Min #1 | Study: Debug Fill Count Change | >>> Fill Count Changed! CurrentFills=0, PrevFills=10 (Checked at Index 1949)
2025-04-18 01:27:08.498 | Chart: ESM25-CME[M] 10 Min #1 | Study: Debug Fill Count Change | >>> Fill Count Changed! CurrentFills=10, PrevFills=0 (Checked at Index 1949)

else if (CurrentFillCount > PreviousFillCount)

#include "sierrachart.h"

// Debug study: skip transient zero and only log real fill-count changes
SCSFExport scsf_DebugFillCountChange_Simple(SCStudyInterfaceRef sc)
{
if (sc.SetDefaults)
{
sc.GraphName = "Debug Fill Count + Simple Skip";
sc.StudyDescription = "Logs fill-count changes, skips any transient 0.";
sc.AutoLoop = 0; // No auto-loop over bars
sc.UpdateAlways = 1; // Always call, even without new ticks
sc.GraphRegion = 0; // Draw in the main chart region
sc.HideStudy = 1; // Keep this study hidden
sc.MaintainTradeStatisticsAndTradesData = 1; // Required for fill data

// --- Persistent variables ---
sc.SetPersistentInt(0, 0); // IsInitialized flag
sc.SetPersistentInt(1, -1); // PreviousFillCount
return;
}

// Do not run during a full recalculation or while downloading historical data
if (sc.IsFullRecalculation || sc.DownloadingHistoricalData)
return;

// Retrieve persistent variables
int& IsInitialized = sc.GetPersistentInt(0);
int& PreviousFillCount = sc.GetPersistentInt(1);
int CurrentFillCount = sc.GetOrderFillArraySize();

// First-time initialization
if (IsInitialized == 0)
{
if (CurrentFillCount == 0)
return; // still loading, skip until the real count arrives, is required if you want to duplicate chart with the study

PreviousFillCount = CurrentFillCount;
IsInitialized = 1;
SCString initMsg;
initMsg.Format("Init: PrevFillCount=%d", PreviousFillCount);
sc.AddMessageToLog(initMsg, 0);
return;
}

// Skip any transient drop to zero immediately after reload
if (CurrentFillCount == 0 && PreviousFillCount > 0)
{
sc.AddMessageToLog("Skipping transient zero after reload", 0);
PreviousFillCount = 0; // Sync up so next real change is detected
return;
}

// Log any real change in fill count
if (CurrentFillCount != PreviousFillCount)
{
SCString logMsg;
logMsg.Format(">>> Fill count changed: Prev=%d, Curr=%d",
PreviousFillCount, CurrentFillCount);
sc.AddMessageToLog(logMsg, 1);
PreviousFillCount = CurrentFillCount;
}
}