//+------------------------------------------------------------------+
//|                                                      ProjectName |
//|                                      Copyright 2020, CompanyName |
//|                                       http://www.companyname.net |
//+------------------------------------------------------------------+

//
// Imports ...
#include "../Classes/XCObjects/x-saherelm.x-panel.class.mq5"
#include <Trade/Trade.mqh>

//
CTrade trade;

//
string mTag;

//
XCPanel eaSignallingPanel;
string eaSignallingPanelName;
XCButton eaSignallingBtn;
string eaSignallingBtnName;
XCButton eaSignallingLongBtn;
string eaSignallingLongBtnName;
XCButton eaSignallingShortBtn;
string eaSignallingShortBtnName;

//
bool eaEnableLongs = true;
bool eaEnableShorts = true;

//+------------------------------------------------------------------+
//| Expert initialization function                                   |
//+------------------------------------------------------------------+
int OnInit()
{
    //
    mTag = "XPanel";
    if (!InitialGUI())
    {
        return INIT_FAILED;
    }

    //
    return (INIT_SUCCEEDED);
}

//+------------------------------------------------------------------+
//| Expert deinitialization function                                 |
//+------------------------------------------------------------------+
void OnDeinit(const int reason)
{
    DestroyGUI();
}

//+------------------------------------------------------------------+
//| Expert tick function                                             |
//+------------------------------------------------------------------+
void OnTick()
{
    //
    UpdateGUI();
}

//+------------------------------------------------------------------+
//|Chart event handling function                                     |
//+------------------------------------------------------------------+
void OnChartEvent(const int id, const long &lparam, const double &dparam, const string &sparam)
{
    //
    // Handle Object Movement ...
    eaSignallingPanel.OnEvent(id, lparam, dparam, sparam);

    //
    // Handle OnClick Event ...
    if (id == CHARTEVENT_OBJECT_CLICK)
    {
        HandleOnClickEvent(sparam);
    }
}
//+------------------------------------------------------------------+

/**
 * Initial GUI ...
 *
 * @return ( bool )
 */
bool InitialGUI()
{
    //
    bool result = false;

    //
    result = InitSignallingGUI();
    if (!result)
    {
        return result;
    }

    //
    ChartRedraw(0);

    //
    return result;
}

/**
 * Update GUI Content ...
 */
void UpdateGUI()
{
    //
    UpdateSignallingGUI();
}

/**
 * Initialize State and Signalling GUI ...
 *
 * @return ( bool )
 */
bool InitSignallingGUI()
{
    //
    bool result = false;

    //
    eaSignallingPanelName = mTag + "SIGNALLING";

    //
    // Create a Panel ...
    result = eaSignallingPanel.Create(
        eaSignallingPanelName,
        10,
        40,
        300,
        50 //
    );
    if (!result)
    {
        return result;
    }
    eaSignallingPanel.Caption("Signalling");

    //
    // Create Activation Button ...
    string eaSignallingPrefix = eaSignallingPanelName + "_State_";

    //
    // Signalling ...
    eaSignallingBtnName = eaSignallingPrefix + "btn";
    result = eaSignallingBtn.Create(
        eaSignallingBtnName,
        10,
        60,
        300,
        25 //
    );
    if (!result)
    {
        return result;
    }
    eaSignallingBtn.SetText("");
    eaSignallingPanel.Add(eaSignallingBtnName);

    //
    // Long Signalling ...
    eaSignallingLongBtnName = eaSignallingPrefix + "_Long_btn";
    result = eaSignallingLongBtn.Create(
        eaSignallingLongBtnName,
        10,
        85,
        150,
        25 //
    );
    if (!result)
    {
        return result;
    }
    eaSignallingLongBtn.SetText("");
    eaSignallingPanel.Add(eaSignallingLongBtnName);

    //
    // Short Signalling ...
    eaSignallingShortBtnName = eaSignallingPrefix + "_Short_btn";
    result = eaSignallingShortBtn.Create(
        eaSignallingShortBtnName,
        160,
        85,
        150,
        25 //
    );
    if (!result)
    {
        return result;
    }
    eaSignallingShortBtn.SetText("");
    eaSignallingPanel.Add(eaSignallingShortBtnName);

    //
    UpdateSignallingGUI();

    //
    return result;
}

/**
 * Update Signalling GUI Content ...
 */
void UpdateSignallingGUI()
{
    //
    // Preparing State ...
    bool isSignallingActive = eaEnableLongs ||
                              eaEnableShorts;

    //
    // All Signalls ...
    color mSignallingBtnTextColor = isSignallingActive
                                        ? clrRed
                                        : clrGreen;
    string mSignallingBtnText = isSignallingActive
                                    ? "Deactive"
                                    : "Active";
    eaSignallingBtn.SetText(mSignallingBtnText);
    eaSignallingBtn.SetColor(mSignallingBtnTextColor);

    //
    // Long Signals ...
    color mSignallingLongBtnTextColor = eaEnableLongs
                                            ? clrRed
                                            : clrGreen;
    string mSignallingLongBtnText = eaEnableLongs
                                        ? "Deactive Longs"
                                        : "Active Longs";
    eaSignallingLongBtn.SetText(mSignallingLongBtnText);
    eaSignallingLongBtn.SetColor(mSignallingLongBtnTextColor);

    //
    // Short Signals ...
    color mSignallingShortBtnTextColor = eaEnableShorts
                                             ? clrRed
                                             : clrGreen;
    string mSignallingShortBtnText = eaEnableShorts
                                         ? "Deactive Shorts"
                                         : "Active Shorts";
    eaSignallingShortBtn.SetText(mSignallingShortBtnText);
    eaSignallingShortBtn.SetColor(mSignallingShortBtnTextColor);
}

/**
 * Destroy GUI ...
 */
void DestroyGUI()
{
    //
    eaSignallingBtnName = NULL;
    eaSignallingLongBtnName = NULL;
    eaSignallingShortBtnName = NULL;

    //
    eaSignallingPanel.Destroy();
    eaSignallingBtn.Destroy();
    eaSignallingLongBtn.Destroy();
    eaSignallingShortBtn.Destroy();
}

/**
 * Handle Object's Click Events ...
 *
 * @param  name: Clicked Object Name
 */
void HandleOnClickEvent(string name)
{
    //
    if (!IsValid(name))
    {
        return;
    }

    //
    // State Button ...
    bool isClicked = false;
    if (name == eaSignallingBtnName)
    {
        //
        isClicked = true;
        HandleChangeState();
        eaSignallingBtn.SetState(false);
        Print("State Button Clicked ...");
    }
    //
    else if (name == eaSignallingLongBtnName)
    {
        //
        isClicked = true;
        HandleChangeLongsState();
        eaSignallingLongBtn.SetState(false);
        Print("Long State Button Clicked ...");
    }
    //
    else if (name == eaSignallingShortBtnName)
    {
        //
        isClicked = true;
        HandleChangeShortsState();
        eaSignallingShortBtn.SetState(false);
        Print("Short State Button Clicked ...");
    }

    //
    if (isClicked)
    {
        UpdateGUI();
    }
}

//
// GUI EVENT Handlers ...

/**
 * Toggle Signalling State ...
 */
void HandleChangeState()
{
    //
    bool isActive = eaEnableLongs ||
                    eaEnableShorts;

    //
    if (isActive)
    {
        //
        eaEnableLongs = false;
        eaEnableShorts = false;
    }
    else
    {
        //
        eaEnableLongs = true;
        eaEnableShorts = true;
    }
}

/**
 * Toggle Longs Signalling State ...
 */
void HandleChangeLongsState()
{
    eaEnableLongs = !eaEnableLongs;
}

/**
 * Toggle Shorts Signalling State ...
 */
void HandleChangeShortsState()
{
    eaEnableShorts = !eaEnableShorts;
}

//