///////////////////////////////////////////////////////
//
// SaherElm IT Center MQL4 Draw Global Library
// ---------------------------------------------
// saherelm useful tools and definitions ...
//
//
// Maintainer:
// ------------
// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
//
//////////////////////////////////////////////////////
#property library
#property copyright "Copyright 2023, SaherElm IT Center"
#property link      "https://www.saherelm.ir"
#property version   "1.00"
#property strict

//
// Log Tag ...
static string logTag = "";

//
// Enable or Disable Logging ...
static bool enableLogging = false;

//
// Start Log Messages ...
//

//
// Logging a Message, specified for this EA ...
// using provided LogTag ...
void LogMessage(string message) {
    //
    if (!enableLogging) {
        return;
    }

    //
    Print(logTag, " > ", message);
}

//
// this used for logging series ...
void LogSeries(
    double &series[], // which series to Log ...
    int length = 0, // number of items to Log, 0 means all ...
    int skip = 0 // number of items which skip before logging ...
) {
    //
    string msg = "";

    //
    int seriesSize = ArraySize(series);
    if (
        skip < 0
        || length < 0
        || seriesSize == 0
        || skip > seriesSize
        || skip + length > seriesSize
    ) {
        return;
    }

    //
    length = length == 0 ?
        seriesSize :
        length;
    int start = skip > 1 ? 
        skip - 1 :
        skip == 1 ?
        1 :
        0; 
    
    //
    // Loop through series items ...
    for (int i = start; i < start + length; i++) {
        //
        msg += StringConcatenate(
            "i[", i, "]: ", series[i], ", "
        );
    }

    //
    LogMessage(msg);
}
//
// End Log Messages ...
//