///////////////////////////////////////////////////////
//
// SaherElm IT Center MQL5 Indicator
// -------------------------------------------------
// Name: XOM1EA Lib
// Description: Library for XOM1EA  ...
//
//
// Maintainer:
// ------------
// Hadi Khazaee Asl (hadi_khazaee_asl@yahoo.com)
//
//////////////////////////////////////////////////////
//
// Global Properties ...
#property library
#property copyright "Copyright 2023, SaherElm IT Center"
#property link "https://saherelm.ir"
#property version "1.00"
#property description "SaherElm Library for XOM1EA Signaller"
#property strict

//
// Imports ...
#include "../../Libraries/x-saherelm.common.lib.mq5"
#include "../../Libraries/x-saherelm.x-poi.lib.mq5"

//
// Definitions ...

//
// Zone Creation Reason ...
enum ENUM_XOM1_ZONE_REASON
{
    X_OM1_ZONE_REASON_NONE, // NONE
    X_OM1_ZONE_REASON_PEAK, // PEAK
    X_OM1_ZONE_REASON_VALE, // VALE
    X_OM1_ZONE_REASON_FCOS, // FCOS
    X_OM1_ZONE_REASON_FCUS, // FCUS
};

/**
 * Validate a Zone Creation Reason ...
 *
 * @param  value: ENUM_XOM1_ZONE_REASON
 *
 * @return ( bool )
 */
bool IsXValid(ENUM_XOM1_ZONE_REASON value)
{
    //
    bool result = false;

    //
    result = value != X_OM1_ZONE_REASON_NONE;

    //
    return result;
}

/**
 * Converts a Zone Reason to String ...
 *
 * @param  value: ENUM_XOM1_ZONE_REASON
 *
 * @return ( string )
 */
string ToXString(ENUM_XOM1_ZONE_REASON value)
{
    return EnumToString(value);
}

/**
 * Converts a Zone Reason to String ...
 *
 * @param  value: ENUM_XOM1_ZONE_REASON
 *
 * @return ( string )
 */
ENUM_XOM1_ZONE_REASON FromXString(string value)
{
    //
    ENUM_XOM1_ZONE_REASON result = X_OM1_ZONE_REASON_NONE;

    //
    if (!IsSpecifiedValid(value))
    {
        return result;
    }

    //
    if (value == ToXString(X_OM1_ZONE_REASON_NONE))
    {
        result = X_OM1_ZONE_REASON_NONE;
    }
    else if (value == ToXString(X_OM1_ZONE_REASON_PEAK))
    {
        result = X_OM1_ZONE_REASON_PEAK;
    }
    else if (value == ToXString(X_OM1_ZONE_REASON_VALE))
    {
        result = X_OM1_ZONE_REASON_VALE;
    }
    else if (value == ToXString(X_OM1_ZONE_REASON_FCOS))
    {
        result = X_OM1_ZONE_REASON_FCOS;
    }
    else if (value == ToXString(X_OM1_ZONE_REASON_FCUS))
    {
        result = X_OM1_ZONE_REASON_FCUS;
    }

    //
    return result;
}

//
// this is a Zone Which
// we start Looking for
// Signal Detecting ...
struct XOM1Zone
{
    //
    // Props ...

    //
    string symbol;                // Symbol
    ENUM_TIMEFRAMES period;       // Period
    string signaller;             // Signaller Identifier
    datetime from;                // Detection Time
    datetime to;                  // Lifetime
    ENUM_X_DIRECTION dir;         // Direction
    ENUM_XOM1_ZONE_REASON reason; // Creation Reason
    double upper;                 // Upper Level
    double lower;                 // Lower Level
    double price;                 // Reason Price

    //
    // Constructor ...
    XOM1Zone()
    {
        Clean();
    }

    //
    // Tools ...

    /**
     * Initialize ...
     *
     * @param  _symbol: Symbol
     * @param  _period: Period
     * @param  _signaller: Signaller Identifier
     * @param  _upper: Upper Value (PEAK)
     * @param  _lower: Lower Value (VALE)
     * @param  _price: Price (Changed Peak or Vale)
     * @param  _dir: Direction
     * @param  _reason: Creation Reason
     * @param  _from: Detection Time
     * @param  _to: Lifetime Time
     *
     * @return ( bool )
     */
    bool Init(
        string _symbol,
        ENUM_TIMEFRAMES _period,
        string _signaller,
        double _upper,
        double _lower,
        double _price,
        ENUM_X_DIRECTION _dir,
        ENUM_XOM1_ZONE_REASON _reason,
        datetime _from,
        datetime _to = NULL //
    )
    {
        //
        to = _from;
        dir = _dir;
        from = _from;
        upper = _upper;
        lower = _lower;
        price = _price;
        symbol = _symbol;
        period = _period;
        reason = _reason;
        signaller = _signaller;

        //
        if (IsSpecifiedValid(_to))
        {
            to = _to;
        }

        //
        bool result = IsValid();
        if (!result)
        {
            Clean();
        }

        //
        return result;
    }

    /**
     * Update Lifetime by Data ...
     *
     * @param  _to: datetime
     */
    void UpdateByDate(datetime _to)
    {
        //
        // Validate ...
        bool isValid = IsValid() &&
                       IsSpecifiedValid(_to) &&
                       _to > to;
        if (!isValid)
        {
            return;
        }

        //
        to = _to;
    }

    /**
     * Update Lifetime by BarIndex ...
     *
     * @param  barIndex: int
     */
    void UpdateByBarIndex(int barIndex)
    {
        //
        // Normalize ...
        if (barIndex <= 0)
        {
            barIndex = 0;
        }

        //
        if (!IsValid())
        {
            return;
        }

        //
        datetime _to = GetBarTime(
            symbol,
            period,
            barIndex //
        );
        if (!IsSpecifiedValid(_to))
        {
            return;
        }

        //
        UpdateByDate(_to);
    }

    /**
     * Clean ...
     */
    void Clean()
    {
        ZeroMemory(this);
    }

    /**
     * Validate ...
     *
     * @return ( bool )
     */
    bool IsValid()
    {
        //
        bool result = false;

        //
        result =
            //
            IsSpecifiedValid(symbol) &&
            IsSpecifiedValid(period) &&
            IsSpecifiedValid(signaller) &&
            IsSpecifiedValid(from) &&
            IsSpecifiedValid(to) &&
            to >= from &&
            HasDirection(dir) &&
            IsXValid(reason) &&
            upper > 0 &&
            lower > 0 &&
            price > 0 &&
            upper > lower &&
            price <= upper &&
            price >= lower
            //
            ;

        //
        return result;
    }

    /**
     * Calculate Lifetime Age ...
     *
     * @return ( int )
     */
    int GetBarLife()
    {
        //
        int result = 0;

        //
        if (!IsValid())
        {
            return result;
        }

        //
        int fromIDX = GetBarIndex(
            symbol,
            period,
            from //
        );
        int toIDX = GetBarIndex(
            symbol,
            period,
            to //
        );
        bool isValid = IsValidIndex(fromIDX) && IsValidIndex(toIDX);
        if (!isValid)
        {
            return result;
        }

        //
        result = MathAbs(fromIDX - toIDX);

        //
        return result;
    }

    /**
     * Check Zone is Bullish ...
     *
     * @return ( bool )
     */
    bool IsBullish()
    {
        return IsValid() && IsSpecifiedBullish(dir);
    }

    /**
     * Check Zone is Bearish ...
     *
     * @return ( bool )
     */
    bool IsBearish()
    {
        return IsValid() && IsSpecifiedBearish(dir);
    }

    /**
     * Converts to Box ...
     *
     * @param  box: Dest
     *
     * @return ( bool )
     */
    bool ToBox(XBoxZone &box)
    {
        //
        bool result = false;

        //
        box.Clean();
        result = IsValid();
        if (!result)
        {
            return result;
        }

        //
        box.to = to;
        box.dir = dir;
        box.from = from;
        box.upper = upper;
        box.lower = lower;
        box.symbol = symbol;
        box.period = period;
        box.type = signaller;

        //
        result = box.IsValid();
        if (!result)
        {
            box.Clean();
        }

        //
        return result;
    }

    /**
     * Unique Identifier ...
     *
     * @return ( string )
     */
    string GetTag()
    {
        //
        string result = NULL;

        //
        result = "XOM1Zone_" +
                 symbol + "_" +
                 ToXString(period) + "_" +
                 signaller + "_" +
                 ToXString(dir) + "_" +
                 ToXString(reason) + "_" +
                 ToXString(TimeToSeconds(from));

        //
        return result;
    }
};

//