///////////////////////////////////////////////////////
// 
// SaherElm IT Center XMTR Indicator
// ---------------------------------------------
// retrieve market base info ...
//
// Maintainer:
// ------------
// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
// 
//////////////////////////////////////////////////////
//
// Global Properties ...
#property copyright "Copyright 2023, SaherElm IT Center"
#property link "https://saherelm.ir"
#property version "1.00"
#property description "SaherElm XMKT Indicator"
#property strict

//
// START Inputs ...
//
//
// Market Specifications ...
input int marketLength = 20; // Market Length
input int atrMultiplier = 1; // ATR Multiplier
input int atrLength = 5; // ATR Period
input ENUM_APPLIED_PRICE source = PRICE_CLOSE; // Source
//
// END Inputs ...
//

//
// START Global Definitions: Variables, Properties and etc ...
//
#property indicator_chart_window

//
// define indicator buffers ...
#property indicator_buffers 3
#property indicator_plots 3

//
// Declare Buffers ...
#define trendBufferIndex 0
#define upTrendBufferIndex 1
#define downTrendBufferIndex 2

//
double trendBuffer[];
double upTrendBuffer[];
double downTrendBuffer[];

//
// Includes our shared library ...
#include "../Libraries/x-saherelm.lib.mq4"
//
// END Global Definitions: Variables, Properties and etc ...
//

//
// Start Event Handlers ...
// 
//
// Initialization ...
int OnInit() {
    //
    // Initialize what we want ...
    
    //
    // Validating Input Parameters ...
    if (marketLength <= 0) {
        return INIT_PARAMETERS_INCORRECT;
    }
    
    //
    // here we specify logging enabled or not ...
    enableLogging = true;

    //
    // this is a Tag which attached to our Logger ...
    logTag = "XMTR";

    //
    // TREND ...
    SetIndexLabel(trendBufferIndex, "Trend");
    SetIndexBuffer(trendBufferIndex, trendBuffer);
    SetIndexStyle(
        trendBufferIndex, 
        DRAW_LINE,
        STYLE_DOT, 
        1,
        clrNONE
    );

    //
    // UP Trend ...
    SetIndexLabel(upTrendBufferIndex, "Up Trend");
    SetIndexBuffer(upTrendBufferIndex, upTrendBuffer);
    SetIndexStyle(
        upTrendBufferIndex, 
        DRAW_LINE,
        STYLE_DOT, 
        1,
        clrNONE
    );

    //
    // DOWN Trend ...
    SetIndexLabel(downTrendBufferIndex, "Down Trend");
    SetIndexBuffer(downTrendBufferIndex, downTrendBuffer);
    SetIndexStyle(
        downTrendBufferIndex, 
        DRAW_LINE,
        STYLE_DOT, 
        1,
        clrNONE
    );

    //
    // initialization done ...
    return(INIT_SUCCEEDED);
}

//
// DeInitialization ...
void OnDeinit(const int reason) {
    //
    RemoveDraws(logTag);
}

//
// Do Calculation ...
int OnCalculate(
    const int rates_total,
    const int prev_calculated,
    const datetime &time[],
    const double &open[],
    const double &high[],
    const double &low[],
    const double &close[],
    const long &tick_volume[],
    const long &volume[],
    const int &spread[]
) {
    //
    // this counts Available Bars ...
    int limit;

    //
    // because in some cases we may have more than one input for 
    // calculation and we must prevent any calculation
    // untill we pass the biggest input length, here we get max Input length
    // and then wait until pass it ...
    int maxLength = MathMax(marketLength, 3);

    //
    // input variable, we return 0 means nothing passed ...
    if (rates_total < maxLength) {
      return 0;
    }
   
    //
    // found which candles calculated before ...
    limit = (prev_calculated == 0) ? rates_total - maxLength - 1 : rates_total - prev_calculated + 1;

    //
    // this is the main loop of calculations, for each bar index ...
    for (int i = limit - 1; i >= 0; i--) {
        //
        // Start Calculation here ...
        // i is bar_index ... 
        
        //
        // Calculate Short Cycle ...
        CalculateBuffers(
            i,
            low
        );
    }

    //
    return rates_total;
}
//
// END Event Handlers ...
// 

//
// START Functions ...
//
//
// Calculate Short Cycle ...
void CalculateBuffers(
    const int bar_index,
    const double &low[]
) {
    //
    double atr = GetMarketTRSMA(
        bar_index,
        atrLength
    );

    //
    double smoothedAtr = (atr * atrMultiplier);
    double upTrend = low[bar_index] - smoothedAtr;
    double downTrend = low[bar_index] + smoothedAtr;

    //
    double cciValue = GetMarketCCI(
        bar_index,
        marketLength,
        source
    );

    //
    // TODO: Complete this ...
}
//
// END Functions ...
//