how can i make alert line only one time?

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Hello!

good afternoon.

i want to modify attached source to suit what i want style.

this is trend line alert and if price line cross then alert fire but it every bar fire alert but

i want to make it only one times alert not per bar or not tick per since i enable trend line alert indicator but no luck.

i was used

static datetime Time0;

if(Time0 == Time[0] ) return;

but it continue alert per bar.

any help much appreciate

//------------------------------------------------------------------
//
//------------------------------------------------------------------
#property indicator_chart_window

extern string LineName        = "Line1";
extern color  LineColor       = Red; 
extern int    LineStyle       = STYLE_SOLID;
extern bool   alertsOn        = true;
extern bool   alertsOnCurrent = false;
extern bool   alertsMessage   = true;
extern bool   alertsSound     = false;
extern bool   alertsEmail     = false;

 int AlertCount ;
Print("top");
//
//------------------------------------------------------------------
datetime gOldTime=0;
bool NewBar()
{
    bool new = Time[0] != gOldTime;
    gOldTime = Time[0];
    return (new);
}

int init()   { 
   Print("Alert count 1 ");
    
   static datetime Time0 ;
return(0); 
}
int deinit() { 
   ObjectDelete("Label_Obj_MACD");
return(0); }



int start()
{
   
  
   Print("alertcount start around:" + AlertCount);
   static datetime Time0 ;
   int Sit;
   double MACD_M_0,MACD_M_1,           // Main line, 0 and 1st bar
   MACD_S_0,MACD_S_1;                  // Signal line, 0 and 1st bar
   string Text[4];                     // Declaring a string array
   color  Color[4];                    // Declaring an array of colors
 
   Text[0]= "Active Order Close";          // Text for different situations
   Text[1]= "Disabled Order Close";
   Text[2]= "Holding of Buy";
   Text[3]= "Holding of Sell";
 
   Color[0]= DeepSkyBlue;              // Object color ..
   Color[1]= LightPink;                // .. for different situations
   Color[2]= Yellow;
   Color[3]= Yellow;
//--------------------------------------------------------------- 2 --
   ObjectCreate("Label_Obj_MACD", OBJ_LABEL, 0, 0, 0);// Creating obj.
   ObjectSet("Label_Obj_MACD", OBJPROP_CORNER, 1);    // Reference corner
   ObjectSet("Label_Obj_MACD", OBJPROP_XDISTANCE, 10);// X coordinate
   ObjectSet("Label_Obj_MACD", OBJPROP_YDISTANCE, 15);// Y coordinate
//--------------------------------------------------------------- 3 --
   MACD_M_0 =iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,0);  // 0 bar
   MACD_S_0 =iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,0);// 0 bar
   MACD_M_1 =iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_MAIN,1);  // 1 bar
   MACD_S_1 =iMACD(NULL,0,12,26,9,PRICE_CLOSE,MODE_SIGNAL,1);// 1 bar
//--------------------------------------------------------------- 4 --
   

   if (ObjectFind(LineName)==-1)
   {
         ObjectCreate(LineName, OBJ_TREND, 0, Time[25], Close[25], Time[0], Close[0]);
                ObjectSet(LineName,OBJPROP_YDISTANCE, 44); 
         ObjectSet(LineName,OBJPROP_XDISTANCE, 10);
         ObjectSet(LineName, OBJPROP_STYLE, LineStyle);
         ObjectSet(LineName, OBJPROP_COLOR, LineColor);
         Sit= 0;
         ObjectSetText("Label_Obj_MACD",Text[Sit],20,"Arial",Color[Sit]);

         
   }
      

      
   if (alertsOn)
   {   
      int testbar = 1; if (alertsOnCurrent) testbar = 0;
      double valc = ObjectGetValueByShift(LineName,testbar);
      double valp = ObjectGetValueByShift(LineName,testbar+1);
         
      //

      //
    if(AlertCount < 3) {
    if(NewBar() ) {       
      if ( Close[1] > valc ) 
      {
      Print("close[0] :" + Close[0]);
      Print("valc :" + valc);
      Print("valp :" + valp);

      doAlert(0," trend Up line crossed 1");
      Sit= 1;
      ObjectSetText("Label_Obj_MACD",Text[Sit],20,"Arial",Color[Sit]);
      SendNotification("Trend UP Line Crossed 1!");
      Sleep(5000);
      SendNotification("Trend Line Crossed! 1");
      Time0 = Time[0]; // no more alert   
      }
      }
      
      
    if(NewBar()) {
      if( Close[1] < valc ) 
      {
      doAlert(0," trend Down line crossed 2");
      Sit= 1;
      ObjectSetText("Label_Obj_MACD",Text[Sit],20,"Arial",Color[Sit]);
      SendNotification("Trend Down Line Crossed! 2");
      Sleep(5000);
      SendNotification("Trend Line Crossed! 2");
      Time0 = Time[0]; // no more alert 
  
      }
      }
      AlertCount++;
      Print("alertcount:" + AlertCount);
      }
      
      
   }         
   return(0);
}


//------------------------------------------------------------------
//
//------------------------------------------------------------------
//
//
//
//
//

void doAlert(int forBar, string doWhat)
{
   static string   previousAlert="nothing";
   static datetime previousTime;
   string message;
   
   if (previousAlert != doWhat || previousTime != Time[forBar]) {
       previousAlert  = doWhat;
       previousTime   = Time[forBar];

       //
       //
       //
       //
       //

       message =  Symbol()+" at "+TimeToStr(TimeLocal(),TIME_SECONDS)+" "+LineName+doWhat;
       
          if (alertsMessage) Alert(message);
          if (alertsEmail)   SendMail(Symbol()+"trendLine alerts",message);
          if (alertsSound)   PlaySound("alert2.wav");
         
   }
   
}

 

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