#include "sierrachart.h"

SCDLLName("Position Config Switcher")

SCSFExport scsf_PositionConfigSwitcher(SCStudyInterfaceRef sc)
{
    // Configuration references
    SCInputRef Input_Enabled = sc.Input[0];
    
    if (sc.SetDefaults)
    {
        // Set study defaults
        sc.GraphName = "Position Config Switcher";
        sc.StudyDescription = "Switches trade window config based on position";
        sc.AutoLoop = 1;
        sc.GraphRegion = 0;
        sc.CalculationPrecedence = LOW_PREC_LEVEL;
        
        // Input settings
        Input_Enabled.Name = "Enable Config Switching";
        Input_Enabled.SetYesNo(1);
        
        return;
    }
    
    // Only run if enabled
    if (!Input_Enabled.GetYesNo())
        return;
    
    // Only execute on the last bar to avoid excessive calls
    if (sc.Index < sc.ArraySize - 1)
        return;
    
    // Get current position quantity
    s_SCPositionData PositionData;
    int Result = sc.GetTradePosition(PositionData);
    
    if (Result == 0)
    {
        sc.AddMessageToLog("Error getting position data", 0);
        return;
    }
    
    // Determine which config file to use based on position
    SCString ConfigFileName;
    
    if (PositionData.PositionQuantity == 0)
    {
        ConfigFileName = "PositionEQzero.twconfig";
    }
    else
    {
        ConfigFileName = "PositionGTzero.twconfig";
    }
    
    // Check if we need to change the config (avoid unnecessary changes)
    static SCString LastConfigFileName;
    
    if (ConfigFileName != LastConfigFileName)
    {
        // Set the trade window config file
        sc.TradeWindowConfigFileName = ConfigFileName;
        
        // Update our tracking variable
        LastConfigFileName = ConfigFileName;
        
        // Add log message for debugging
        SCString LogMessage;
        LogMessage.Format("Position: %.0f, Config set to: %s", 
                         PositionData.PositionQuantity, 
                         ConfigFileName.GetChars());
        sc.AddMessageToLog(LogMessage, 0);
    }
}