//
// Created by Epagris on 2020. 03. 01..
//

#include "EventHandler.h"
#include "Logger.h"
#include <hidusage.h>
eg3d::EventHandler::EventHandler() {
	init();
}

void eg3d::EventHandler::init()
{
	mCamVelocity = 0.0f; // kamera sebességének inicializációja
	mMouseLocked = false; // nincs befogva az egér


}

float eg3d::EventHandler::getCamVelocity() const
{
	return mCamVelocity;
}

// -----------------------------------

int eg3d::EventHandler::processEvent(HWND hwnd, UINT message, WPARAM wParam, LPARAM lParam) {
	// TODO eseménykezelés megvalósítása
	EventHandler * pThis_EH = static_cast<Window *>((void *)GetWindowLongPtrA(hwnd, GWLP_USERDATA))->getEventHandler(); // ablakhoz rendelt eseménykezelő elkérése

	UINT rawDataLength = 64;
	BYTE pRawData[64];

	switch (message)
	{

	case WM_INPUT:
	{
		GetRawInputData((HRAWINPUT)lParam, RID_INPUT, pRawData, &rawDataLength, sizeof(RAWINPUTHEADER));

		RAWINPUT * pRawInput = (RAWINPUT *)pRawData;

		if (pRawInput->header.dwType == RIM_TYPEMOUSE)
		{
			int displacementX = pRawInput->data.mouse.lLastX;
			int displacementY = pRawInput->data.mouse.lLastY;

			LOG(std::string("(") + std::to_string(displacementX) + ", " + std::to_string(displacementY) + ")");
		}
	}
	break;
		
	case WM_KEYDOWN:
	{
		switch (wParam)
		{
		case 'W':
			pThis_EH->mCamVelocity = -cCAM_VELOCITY;
			break;
		case 'S':
			pThis_EH->mCamVelocity = cCAM_VELOCITY;
			break;
		case 'L':
			pThis_EH->mMouseLocked = !pThis_EH->mMouseLocked;
			LOG(std::string("Mouse ") + (pThis_EH->mMouseLocked ? "" : "un") + "locked");
			break;
		}

	}
	break;

	case WM_KEYUP:
	{
		if (wParam == 'W' || wParam == 'S')
		{
			pThis_EH->mCamVelocity = 0.0f;
		}
	}

	break;

	default:
		return 1;
	}

	return 0;
}