Fix compilation errors - convert to MQL4 syntax

- Remove MQL5-specific indicator properties
- Replace iMA handles with direct iMA function calls
- Replace PlotIndexSetString with SetIndexLabel
- Replace IndicatorRelease with MQL4 equivalent
- Replace CopyBuffer with direct iMA calls
- Replace MqlDateTime with TimeHour and TimeDayOfWeek
- Fix all MQL4/MQL5 compatibility issues

MAEA.mq4

@@ -8,45 +8,7 @@
 #property version   "1.00"
 #property strict
 #property indicator_chart_window
-
-//--- Indicator buffers
 #property indicator_buffers 5
-#property indicator_plots   5
-
-//--- Plot settings for EMA High
-#property indicator_label1  "EMA High"
-#property indicator_type1   DRAW_LINE
-#property indicator_color1  clrLightBlue
-#property indicator_style1  STYLE_SOLID
-#property indicator_width1  2
-
-//--- Plot settings for EMA Medium
-#property indicator_label2  "EMA Medium"
-#property indicator_type2   DRAW_LINE
-#property indicator_color2  clrYellow
-#property indicator_style2  STYLE_SOLID
-#property indicator_width2  2
-
-//--- Plot settings for EMA Low
-#property indicator_label3  "EMA Low"
-#property indicator_type3   DRAW_LINE
-#property indicator_color3  clrOrange
-#property indicator_style3  STYLE_SOLID
-#property indicator_width3  2
-
-//--- Plot settings for High Border
-#property indicator_label4  "High Border"
-#property indicator_type4   DRAW_LINE
-#property indicator_color4  clrPurple
-#property indicator_style4  STYLE_DASH
-#property indicator_width4  1
-
-//--- Plot settings for Low Border
-#property indicator_label5  "Low Border"
-#property indicator_type5   DRAW_LINE
-#property indicator_color5  clrPurple
-#property indicator_style5  STYLE_DASH
-#property indicator_width5  1
 
 //+------------------------------------------------------------------+
 //| Input Parameters                                                  |
@@ -85,16 +47,6 @@ double EMALowBuffer[];
 double HighBorderBuffer[];
 double LowBorderBuffer[];
 
-// EMA handles
-int EMAHighHandle;
-int EMAMediumHandle;
-int EMALowHandle;
-
-// D1 EMA handles for MTF filter
-int D1_EMAHighHandle;
-int D1_EMAMediumHandle;
-int D1_EMALowHandle;
-
 // State tracking
 bool PullbackBuy = false;
 bool PullbackSell = false;
@@ -130,34 +82,18 @@ int OnInit()
    SetIndexBuffer(4, LowBorderBuffer);
    
    // Set indicator labels
-   PlotIndexSetString(0, PLOT_LABEL, "EMA High");
+   SetIndexLabel(0, "EMA High");
-   PlotIndexSetString(1, PLOT_LABEL, "EMA Medium");
+   SetIndexLabel(1, "EMA Medium");
-   PlotIndexSetString(2, PLOT_LABEL, "EMA Low");
+   SetIndexLabel(2, "EMA Low");
-   PlotIndexSetString(3, PLOT_LABEL, "High Border");
+   SetIndexLabel(3, "High Border");
-   PlotIndexSetString(4, PLOT_LABEL, "Low Border");
+   SetIndexLabel(4, "Low Border");
    
-   // Initialize EMA handles
+   // Set indicator styles
-   EMAHighHandle = iMA(Symbol(), PERIOD_CURRENT, EMAPeriod, 0, MODE_EMA, PRICE_HIGH);
+   SetIndexStyle(0, DRAW_LINE, STYLE_SOLID, 2, clrLightBlue);
-   EMAMediumHandle = iMA(Symbol(), PERIOD_CURRENT, EMAPeriod, 0, MODE_EMA, PRICE_CLOSE);
+   SetIndexStyle(1, DRAW_LINE, STYLE_SOLID, 2, clrYellow);
-   EMALowHandle = iMA(Symbol(), PERIOD_CURRENT, EMAPeriod, 0, MODE_EMA, PRICE_LOW);
+   SetIndexStyle(2, DRAW_LINE, STYLE_SOLID, 2, clrOrange);
-   
+   SetIndexStyle(3, DRAW_LINE, STYLE_DASH, 1, clrPurple);
-   // Initialize D1 EMA handles for MTF filter
+   SetIndexStyle(4, DRAW_LINE, STYLE_DASH, 1, clrPurple);
-   D1_EMAHighHandle = iMA(Symbol(), PERIOD_D1, EMAPeriod, 0, MODE_EMA, PRICE_HIGH);
-   D1_EMAMediumHandle = iMA(Symbol(), PERIOD_D1, EMAPeriod, 0, MODE_EMA, PRICE_CLOSE);
-   D1_EMALowHandle = iMA(Symbol(), PERIOD_D1, EMAPeriod, 0, MODE_EMA, PRICE_LOW);
-   
-   // Check handles
-   if(EMAHighHandle == INVALID_HANDLE || EMAMediumHandle == INVALID_HANDLE || EMALowHandle == INVALID_HANDLE)
-   {
-      Print("Error creating EMA handles");
-      return(INIT_FAILED);
-   }
-   
-   if(UseMTFFilter && (D1_EMAHighHandle == INVALID_HANDLE || D1_EMAMediumHandle == INVALID_HANDLE || D1_EMALowHandle == INVALID_HANDLE))
-   {
-      Print("Error creating D1 EMA handles");
-      return(INIT_FAILED);
-   }
    
    // Parse news filter arrays
    ParseNewsFilterArrays();
@@ -174,14 +110,6 @@ int OnInit()
 //+------------------------------------------------------------------+
 void OnDeinit(const int reason)
 {
-   // Release indicator handles
-   if(EMAHighHandle != INVALID_HANDLE) IndicatorRelease(EMAHighHandle);
-   if(EMAMediumHandle != INVALID_HANDLE) IndicatorRelease(EMAMediumHandle);
-   if(EMALowHandle != INVALID_HANDLE) IndicatorRelease(EMALowHandle);
-   if(D1_EMAHighHandle != INVALID_HANDLE) IndicatorRelease(D1_EMAHighHandle);
-   if(D1_EMAMediumHandle != INVALID_HANDLE) IndicatorRelease(D1_EMAMediumHandle);
-   if(D1_EMALowHandle != INVALID_HANDLE) IndicatorRelease(D1_EMALowHandle);
-   
    Print("MAEA deinitialized");
 }
 
@@ -232,10 +160,10 @@ int OnCalculate(const int rates_total,
    // Calculate EMA values and border lines
    for(int i = start; i < rates_total; i++)
    {
-      // Get EMA values
+      // Get EMA values using iMA function (MQL4 style)
-      double emaHigh = GetEMAValue(EMAHighHandle, i);
+      double emaHigh = iMA(Symbol(), PERIOD_CURRENT, EMAPeriod, 0, MODE_EMA, PRICE_HIGH, i);
-      double emaMedium = GetEMAValue(EMAMediumHandle, i);
+      double emaMedium = iMA(Symbol(), PERIOD_CURRENT, EMAPeriod, 0, MODE_EMA, PRICE_CLOSE, i);
-      double emaLow = GetEMAValue(EMALowHandle, i);
+      double emaLow = iMA(Symbol(), PERIOD_CURRENT, EMAPeriod, 0, MODE_EMA, PRICE_LOW, i);
       
       // Calculate range
       double range = emaMedium - emaLow;
@@ -283,12 +211,9 @@ int OnCalculate(const int rates_total,
 //+------------------------------------------------------------------+
 //| Get EMA value from handle                                         |
 //+------------------------------------------------------------------+
-double GetEMAValue(int handle, int shift)
+double GetEMAValue(int timeframe, int applied_price, int shift)
 {
-   double value[];
+   return iMA(Symbol(), timeframe, EMAPeriod, 0, MODE_EMA, applied_price, shift);
-   ArraySetAsSeries(value, true);
-   CopyBuffer(handle, 0, shift, 1, value);
-   return(value[0]);
 }
 
 //+------------------------------------------------------------------+
@@ -479,8 +404,8 @@ bool CheckVolumeFilter(const long &tick_volume[], int rates_total)
 bool CheckMTFFilter()
 {
    double d1Close = iClose(Symbol(), PERIOD_D1, 0);
-   double d1EMAHigh = GetEMAValue(D1_EMAHighHandle, 0);
+   double d1EMAHigh = GetEMAValue(PERIOD_D1, PRICE_HIGH, 0);
-   double d1EMALow = GetEMAValue(D1_EMALowHandle, 0);
+   double d1EMALow = GetEMAValue(PERIOD_D1, PRICE_LOW, 0);
    
    if(d1Close > d1EMAHigh)
    {
@@ -504,13 +429,11 @@ bool CheckMTFFilter()
 //+------------------------------------------------------------------+
 bool CheckNewsFilter(datetime currentTime)
 {
-   MqlDateTime timeStruct;
-   TimeToStruct(currentTime, timeStruct);
-   
    // Convert to Thailand timezone (UTC+7)
    // MT4 server time is usually UTC, so add 7 hours
-   int thailandHour = (timeStruct.hour + 7) % 24;
+   datetime thailandTime = currentTime + 7 * 3600; // 7 hours in seconds
-   int thailandDay = timeStruct.day_of_week;
+   int thailandHour = TimeHour(thailandTime);
+   int thailandDay = TimeDayOfWeek(thailandTime);
    
    // Check if current hour is in avoid list
    for(int i = 0; i < ArraySize(AvoidHoursArray); i++)