//+------------------------------------------------------------------+
//|                                                       NewBar.mqh |
//|                                                     AnimateDread |
//|                                             https://www.mql5.com |
//+------------------------------------------------------------------+
#property copyright "AnimateDread"
#property link      "https://www.mql5.com"

bool NewBar()
  {
   datetime cTime[];
   ArraySetAsSeries(cTime, true);
   static datetime LastTime = 0;
   // CopyTime can return 0/fail (history not yet synced right after attach, or a data gap on an
   // illiquid symbol) leaving cTime empty - indexing cTime[0] unguarded would raise an "array out
   // of range" runtime error and abort this tick's processing (skipping bar-close-triggered logic
   // like autosave/era boundaries) with no diagnostic.
   if(CopyTime(Symbol(), Period(), 0, 1, cTime) <= 0 || ArraySize(cTime) == 0)
     {
      Print(__FUNCTION__ + ": CopyTime failed or returned no data (error " + IntegerToString(GetLastError()) + ") - treating this tick as not-a-new-bar.");
      return false;
     }
   bool ret = cTime[0] > LastTime && LastTime > 0;
   LastTime = cTime[0];
   return ret;
  }