///////////////////////////////////////////////////////
//
// SaherElm IT Center MQL5 Indicator
// -------------------------------------------------
// Name: X121 ???
// Description: ??? ...
//
//
// 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 X121 ??? Indicator"
#property strict

//
// Definitions ...

//
#define ShortName "X121 ???"

//
// Includes Common Library ...
#include "../Libraries/x-saherelm.common.lib.mq5"

//
// Inputs ...

//
// Market ...
input group "Market";

//
// Presentation ...
input group "Presentation";

//
input int startCalculationForLastBars = 1000; // Calculate Last n Bars

//
// Buffers ...

//
#define hideColorIDX 0
#define bullishColorIDX 1
#define bearishColorIDX 2
#define neuturalColorIDX 3

//
#property indicator_chart_window

//
#property indicator_buffers 0
#property indicator_plots 0

//
// Plot Buffers ...

//
// Data Buffers ...

//
int mLastBufferIndex = 20;

//
// Variables, Properties and etc ...

//
// this counts Available Bars ...
int limit;

//
int maxLength;

//
// Event Handlers ...

/**
 * Initialize Indicator ...
 *
 * @return ( int )
 */
int OnInit()
{
    //
    // Validate Inputs ...
    if (!ValidateInputs())
    {
        return INIT_PARAMETERS_INCORRECT;
    }

    //
    // Initialize Indicator Handlers ...

    //
    // 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 ...
    maxLength = ExtractMaxLengthOfInputs();

    //
    // Define Index Buffers ...
    DefineBuffers();

    //
    // Set Indicator ShortName ...
    SetIndicatorName();

    //
    // Init Succeed ...
    return INIT_SUCCEEDED;
}

/**
 * De Initialize Indicator ...
 *
 * @param  reason: Integer, De Initialization Reason ...
 */
void OnDeinit(const int reason)
{
    //
    // REASON_PROGRAM 0 The EA has stopped working calling the ExpertRemove() function
    // REASON_REMOVE 1 Program removed from a chart
    // REASON_RECOMPILE 2 Program recompiled
    // REASON_CHARTCHANGE 3 A symbol or a chart period is changed
    // REASON_CHARTCLOSE 4 Chart closed
    // REASON_PARAMETERS 5 Inputs changed by a user
    // REASON_ACCOUNT 6 Another account has been activated or reconnection to the trade server has occurred due to changes in the account settings
    // REASON_TEMPLATE 7 Another chart template applied
    // REASON_INITFAILED 8 The OnInit() handler returned a non-zero value
    // REASON_CLOSE 9 Terminal closed
}

/**
 * Calculate Bars ...
 *
 * @param  rates_total: Integer, Total Bars on Chart ...
 * @param  prev_calculated: Integer, Total Calculated Bars on Charts ...
 * @param  time: DateTime Array, History of Open Time ...
 * @param  open: Double Array, History of Open Prices ...
 * @param  high: Double Array, History of High Prices ...
 * @param  low: Double Array, History of Low Prices ...
 * @param  close: Double Array, History of Close Prices ...
 * @param  tick_volume: Long, History of Tick Volumes on Bar ...
 * @param  volume: Long, History of Trade Volumes ...
 * @param  spread: Double, History of Spread Price ...
 *
 * @return ( int )
 */
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[] //
)
{
    //
    // Prepare Buffers ...
    ArraySetAsSeries(time, true);
    ArraySetAsSeries(open, true);
    ArraySetAsSeries(high, true);
    ArraySetAsSeries(low, true);
    ArraySetAsSeries(close, true);
    ArraySetAsSeries(tick_volume, true);
    ArraySetAsSeries(volume, true);
    ArraySetAsSeries(spread, true);

    //
    // Validate Calculated Bars ...

    //
    limit = (prev_calculated > rates_total || prev_calculated <= 0)
                ? rates_total
                : (rates_total - prev_calculated) + 1;

    //
    // Buffers Copy ...

    //
    // Main Loop ...
    for (int i = limit - 1; i >= 0 && !IsStopped(); i--)
    {
        //
        CalculateBuffers(
            i,
            prev_calculated,
            rates_total,
            //
            open,
            high,
            close,
            low,
            tick_volume //
        );
    }

    //
    return rates_total;
}

//
// Functions ...

/**
 * Validate Input Args for Initialization ...
 *
 * @return ( bool )
 */
bool ValidateInputs()
{
    //
    bool result = false;

    //
    result =
        //
        false
        //
        ;

    //
    return result;
}

/**
 * Extract Max Length of Inputs ...
 *
 * @return ( int )
 */
int ExtractMaxLengthOfInputs()
{
    //
    int result = 0;

    //
    return result;
}

/**
 * Define Required Buffers ...
 */
void DefineBuffers()
{
    //
    // Plot Buffers ...

    //
    // Data Buffers ...
}

/**
 * Set Indicator Short Name and also we can define Buffers Labels ...
 */
void SetIndicatorName()
{
    IndicatorSetString(INDICATOR_SHORTNAME, ShortName);
}

/**
 * Calculate Custom Buffers ...
 *
 * @param  bar_index: Integer, Represent Current Bar ...
 * @param  prevCalculated: Integer, Represent Previous Calculated Bars ...
 * @param  ratesTotal: Integer, Represents All Available Bars ...
 * @param  open: Double Array, History of Open Prices ...
 * @param  high: Double Array, History of High Prices ...
 * @param  close: Double Array, History of Close Prices ...
 * @param  low: Double Array, History of Low Prices ...
 * @param  tickVolume: Long, History of Tick Volumes on Bar ...
 */
void CalculateBuffers(
    int bar_index, // Selected Bar Index
    const int prevCalculated,
    const int ratesTotal,
    const double &open[],
    const double &high[],
    const double &close[],
    const double &low[],
    const long &tickVolume[] //
)
{
    //
    int barsLimit = startCalculationForLastBars > 0
                        ? startCalculationForLastBars
                        : 0;
    //
    // bool canCalculate = true;
    bool canCalculate =
        barsLimit == 0 ||
        bar_index <= barsLimit;
    if (canCalculate)
    {
    }
    else
    {
        FillBuffersZero(bar_index);
    }
}

//
// Custom ...

/**
 * Fill All Bufers to Zero Vlue for Specified Bar Index ...
 *
 * @param  barIndex: Integer ...
 */
void FillBuffersZero(int barIndex)
{
}

//