///////////////////////////////////////////////////////
// SaherElm IT Center MQL5 Indicator
// -------------------------------------------
// Name: XMidTest
// Description: DONCHAIN Channel ...
//
// 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 XMidTest Indicator"
#property strict

//
// Imports ...
#include "../Classes/Indicators/x-saherelm.mid.class.mq5"

//
#define ShortName "XMidTest"

//
#property indicator_chart_window

//
#property indicator_buffers 1
#property indicator_plots 1

//
// Variables ...
XSCMid *mMid;

//
#property indicator_type1 DRAW_LINE
double mainBuffer[];
double mainColorBuffer[];

//
// Initialization ...
int OnInit()
{
    //
    // Initialize Indicator Class ...
    bool isInited = InitIndicatorClass();
    if (!isInited)
    {
        return INIT_PARAMETERS_INCORRECT;
    }

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

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

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

//
// DeInitialization ...
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

    //
    mMid.DeInit(reason);
    delete mMid;
}

//
// Calculating what we want ...
int OnCalculate(
    const int rates_total,     // Total Bars on Chart ...
    const int prev_calculated, // Total Calculated Bars on Charts ...
    const datetime &time[],    // History of Open Time ...
    const double &open[],      // History of Open Price ...
    const double &high[],      // History of High Price ...
    const double &low[],       // History of Low Price ...
    const double &close[],     // History of Close Price ...
    const long &tick_volume[], // History of Tick Volumes on Bar ...
    const long &volume[],      // History of Trade Volumes ...
    const int &spread[]        // History of Spread Price ...
)
{
    //
    // 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 = mMid.GetInputs().Max();

    //
    int midCalculatedBars = mMid.GetCalculatedBars();
    if (midCalculatedBars < 0)
    {
        return prev_calculated;
    }

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

    //
    int midMainCopiedItems = mMid.CopyBufferValue(
        GetTitle(XSCMID_MAIN_LINE),
        mainBuffer,
        0,
        limit //
    );
    if (midMainCopiedItems <= 0)
    {
        return prev_calculated;
    }

    //
    // Main Loop ...
    for (int i = limit - 1; i >= 0 && !IsStopped(); i--)
    {
        CalculateBuffers(i);
    }

    //
    return rates_total;
}

//
// CUSTOM Functions ...

//
// Validate Input Args for Initialization ...
bool InitIndicatorClass()
{
    //
    bool result = false;

    //
    // Initialize and Prepare
    // Inputs of Indicator ...
    XSCMidInputs inputs;
    result = inputs.Init();
    if (!result)
    {
        return result;
    }

    //
    // Instantiate Class ...
    mMid = new XSCMid(
        _Symbol,
        _Period //
    );

    //
    // Now Initialize Indicator Class using Given Inputs ...
    result = mMid.Init(
        inputs //
    );

    //
    return result;
}

//
// Define Indexes and Styles ...
void DefineBuffers()
{
    //
    // Start Styling and Indexing Buffers ...

    //
    string bufferLabel = GetTitle(XSCMID_MAIN_LINE);
    int mainIDX = mMid.GetBufferIndexByLine(XSCMID_MAIN_LINE);
    XBuffer mainBufferStruct;
    mMid.GetBufferByLine(
        XSCMID_MAIN_LINE,
        mainBufferStruct //
    );

    //
    int bufferIndex = 0;

    //
    int max = mMid.GetInputs().Max();

    //
    ArraySetAsSeries(mainBuffer, true);

    //
    XBufferPlotStyle mainBufferStyle;
    mainBufferStyle.clr = clrAqua;
    mainBufferStyle.type = DRAW_LINE;
    mainBufferStyle.width = 3;

    //
    SetIndexBuffer(
        bufferIndex,
        mainBuffer,
        mainBufferStyle,
        mainColorBuffer,
        bufferLabel,
        true,
        EMPTY_VALUE //
    );
}

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

//
void CalculateBuffers(int barIndex)
{
}