// This is the main DLL file.

#include "stdafx.h"

#include "MT4Handler.h"
#include "Windows.h"

using namespace System;
using namespace MTApiService;
using namespace System::Runtime::InteropServices;
using namespace System::Reflection;
using namespace System::Security::Cryptography; 
using namespace System::Security;
using namespace System::Text;
using namespace System::IO;
using namespace  System::Collections::Generic;
using namespace System::Diagnostics;

struct MqlStr
{
};

void mqlStrFromNetStr(MqlStr* dst, String^ src)
{
	char* numPtr2 = *((char**) (dst + 4));
	char* numPtr = (char*) Marshal::StringToHGlobalAnsi(src).ToPointer();
	int num = strlen(numPtr);
	int num2 = 0x80;
	if (num >= num2)
	{
		num = num2 - 1;
	}
	strncpy_s(numPtr2, (unsigned int) num2, numPtr, (unsigned int) num);
	Marshal::FreeHGlobal((IntPtr) numPtr);
	*((int*) dst) = num;
}

int _stdcall initExpert(int expertHandle, char* connectionProfile, char* symbol, double bid, double ask, MqlStr* err)
{
	try
	{
		MT4Handler^ mtHandler = gcnew MT4Handler();

		MtServerInstance::GetInstance()->InitExpert(expertHandle, gcnew String(connectionProfile), gcnew String(symbol), bid, ask, mtHandler);
	}
	catch (Exception^ e)
	{
		mqlStrFromNetStr(err, e->Message);
		Debug::WriteLine("[ERROR] MTConnector:initExpert(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall deinitExpert(int expertHandle, MqlStr* err)
{
	try
	{
		MtServerInstance::GetInstance()->DeinitExpert(expertHandle);
	}	
	catch (Exception^ e)
	{
		mqlStrFromNetStr(err, e->Message);
		Debug::WriteLine("[ERROR] MTConnector:deinitExpert(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall updateQuote(int expertHandle, char* symbol, double bid, double ask, MqlStr* err)
{
	try
	{
		MtServerInstance::GetInstance()->SendQuote(expertHandle, gcnew String(symbol), bid, ask);
	}
	catch (Exception^ e)
	{
		mqlStrFromNetStr(err, e->Message);
		Debug::WriteLine("[ERROR] MTConnector:updateQuote(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendIntResponse(int expertHandle, int response)
{
	try
	{
		MtServerInstance::GetInstance()->SendResponse(expertHandle, gcnew MtResponseInt(response));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendIntResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendBooleanResponse(int expertHandle, int response)
{
	try
	{
		bool value = (response != 0) ? true : false;

		MtServerInstance::GetInstance()->SendResponse(expertHandle, gcnew MtResponseBool(value));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendBooleanResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendDoubleResponse(int expertHandle, double response)
{
	try
	{
		MtServerInstance::GetInstance()->SendResponse(expertHandle, gcnew MtResponseDouble(response));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendDoubleResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendStringResponse(int expertHandle, char* response)
{
	try
	{
		MtServerInstance::GetInstance()->SendResponse(expertHandle, gcnew MtResponseString(gcnew String(response)));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendStringResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendVoidResponse(int expertHandle)
{
	try
	{		
		MtServerInstance::GetInstance()->SendResponse(expertHandle, nullptr);
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendVoidResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendDoubleArrayResponse(int expertHandle, double* values, int size)
{
	try
	{
		array<double>^ list = gcnew array<double>(size);

		for(int i = 0; i < size; i++)
		{
			list[i] = values[i];
		}

		MtServerInstance::GetInstance()->SendResponse(expertHandle, gcnew MtResponseDoubleArray(list));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendDoubleArrayResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall sendIntArrayResponse(int expertHandle, int* values, int size)
{
	try
	{
		array<int>^ list = gcnew array<int>(size);

		for(int i = 0; i < size; i++)
		{
			list[i] = values[i];
		}

		MtServerInstance::GetInstance()->SendResponse(expertHandle, gcnew MtResponseIntArray(list));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:sendIntArrayResponse(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall getCommandType(int expertHandle, int* res)
{
	try
	{
		*res = MtServerInstance::GetInstance()->GetCommandType(expertHandle);
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:getCommandType(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall getIntValue(int expertHandle, int paramIndex, int* res)
{
	try
	{
		*res = (int)MtServerInstance::GetInstance()->GetCommandParameter(expertHandle, paramIndex);
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:getIntValue(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall getDoubleValue(int expertHandle, int paramIndex, double* res)
{
	try
	{
		*res = (double)MtServerInstance::GetInstance()->GetCommandParameter(expertHandle, paramIndex);
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:getDoubleValue(): " + e->Message);
		return 0;
	}
	return 1;
}

int _stdcall getStringValue(int expertHandle, int paramIndex, MqlStr* res)
{
	try
	{
		mqlStrFromNetStr(res, (String^)MtServerInstance::GetInstance()->GetCommandParameter(expertHandle, paramIndex));
	}
	catch (Exception^ e)
	{
		Debug::WriteLine("[ERROR] MTConnector:getStringValue(): " + e->Message);
		return 0;
	}
	return 1;
}