#include <stdio.h>
#include <stdlib.h>
#include <vector>
extern "C" {
  #include <lua.h>
  #include <lauxlib.h>
  #include <lualib.h>
}
#include <irrlicht.h>
#include <map>

#include "callbackhandeler.hpp"

using namespace irr;
using namespace gui;
using namespace std;

extern lua_State* L;

std::map<IGUIElement*,std::map<EGUI_EVENT_TYPE, void(*)(irr::SEvent)> > guifuncs;
//IrrlichtDevice* device;

void registerguicallback(IGUIElement* element, EGUI_EVENT_TYPE event, void (*func)(irr::SEvent)){
  printf("Callback registered\n");
  guifuncs[element][event] = func;
}


GlobalEventReceiver::GlobalEventReceiver(IrrlichtDevice* d){
  //device = d;
}
bool GlobalEventReceiver::OnEvent(const SEvent& e){
  EEVENT_TYPE type = e.EventType;
	switch (type){
	case EET_GUI_EVENT:{
        IGUIElement* caller = e.GUIEvent.Caller;
        EGUI_EVENT_TYPE get = e.GUIEvent.EventType;
        printf("detected gui event...\n");
        bool callerregistered = guifuncs.find(caller) != guifuncs.end();
        bool callerhasfunc = guifuncs[caller].find(get) != guifuncs[caller].end();
    	if (callerregistered && callerhasfunc){
    		guifuncs[caller][get](e);
            printf("sucessfully called a gui event\n");
    		return true;
    	}
    	return false;
    	break;
	}
    case EET_MOUSE_INPUT_EVENT:{
        SEvent::SMouseInput se = e.MouseInput;
        //printf("X: %d Y: %d\n",se.X, se.Y);
        
        lua_getglobal(L,"GAME");
        lua_getfield(L,-1,"onMouseMove");
        if(!lua_isnil(L,-1)){
            lua_pushnumber(L,se.X);
            lua_pushnumber(L,se.Y);
            lua_call(L,2,0);
        }
    }
	default:
		//printf("Called an unknown event\n");
		return false;
	}
}