#include <wx/wx.h>
#include <wx/stdpaths.h>

#include <ec_pluginapi.h> //this is necessary, PLUGININFO structure, other related to load/unload plugin code



PLUGINLINK *pluginLink;
extern PLUGININFO pluginInfo;

#define CallService(service, param) pluginLink->CallService(service,param)

 class wxPluginForEvilCore: public wxApp //this is like on default wxwidgets application
 {
 	virtual bool OnInit();
 };

 IMPLEMENT_APP_NO_MAIN(wxPluginForEvilCore) //main() does not needed, we will create instance by hand later

const int EVENT_TEST = 666;

EVENT_HANDLER our_handler(void* data) //this is event handler fuction
{
	return (void*(*)(void*))data; //just return data which we obtaned
}

bool wxPluginForEvilCore::OnInit()
{
    wxMessageBox(_T("I am a plugin example") ,_T("Info"),  wxOK | wxICON_INFORMATION);
	int *core_version = (int*)CallService("EC/GetVersionInt", NULL); //using service implemented somewhere (in core, in plugins, in other place), NULL is data required for service
	if(core_version)
	{
		wxChar msg[64];
		wxSnprintf(msg, 63, _T("Core version is %d."), core_version);
		wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
	}
	{
		wxChar msg [64];
		wxSnprintf(msg, 63, _T("I have obtained special id %d from core"), pluginInfo.pluginid); //we must obtain special plugin id for calling services like raise event or so.
		wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
	}
	{ //trying to register event type
		if(!pluginLink->RegisterEventType(EVENT_TEST, pluginInfo.pluginid))
		{
			wxChar msg[64];
			wxSnprintf(msg, 63, _T("we have succesfuly registered event %d"), EVENT_TEST);
			wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
		}
		else
		{
			wxChar msg[64];
			wxSnprintf(msg, 63, _T("we have failed to register event %d"), EVENT_TEST);
			wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
		}
	}
	{//here we trying to handle our event type
		if(!pluginLink->RegisterEventHandler(EVENT_TEST, (void* (*)(void*))our_handler))
		{
			wxChar msg[64];
			wxSnprintf(msg, 63, _T("we have succesfuly registered event handler"));
			wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
		}
		else
		{
			wxChar msg[64];
			wxSnprintf(msg, 63, _T("we have failed to register event handler"));
			wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
		}
	}
	{ // raising our event 
		char* string = (char*)pluginLink->ExecuteEvent(EVENT_TEST, pluginInfo.pluginid, (void*)"this is custom data for test");
		wxChar msg[128];
		wchar_t* str = (wchar_t*)CallService("EC/toUtf16", (void*)string); //and amother example of core service usage
		wxSnprintf(msg, 127, _T("we have obtained string \"%s\" in custom data"), str);
		free(str); //should be freed
		wxMessageBox(msg, _T("Info"),  wxOK | wxICON_INFORMATION);
	}
	return true;
}

#ifdef _WIN32
HINSTANCE hInst;
BOOL WINAPI DllMain( HINSTANCE hinstDLL, DWORD fdwReason, LPVOID lpvReserved ) //default dll entry point
{
	hInst = hinstDLL;
	return TRUE;
} //windows specific, does not needed ?
#endif

PLUGININFO pluginInfo =
{
//	sizeof(PLUGININFO), //size of structure
	(wchar_t*)L"example plugin", //name
	0, //description
	0, //author
	0, //author email
	0x0001010d //version 0.1.1.13
};

#ifdef _WIN32
extern "C" __declspec(dllexport) PLUGININFO* set_plugin_info()
#else
extern "C" PLUGININFO* set_plugin_info()
#endif
{
	return &pluginInfo; //necessary, our plugin info for core can recognize us
}

#ifdef _WIN32
extern "C" __declspec(dllexport) int load(PLUGINLINK *link) //basic initialisation, registering new functions, do other basic initialisation, you can create infinite loop, or other code which use many time here, only fast basic initialisation
#else
extern "C" int load(PLUGINLINK *link)
#endif
{
	pluginLink = link; //necessary
	//some basic initialisation code
	return 0; //all ok, retrun 0
}

#ifdef _WIN32
extern "C" __declspec(dllexport) int on_modules_loaded() //load main code from here, all services from other plugins must be avaible here
#else
extern "C" int on_modules_loaded() //load main code from here, all services from other plugins must be avaible here
#endif
{
    wxApp::SetInstance(new wxPluginForEvilCore()); //create instance, i think here is right place, not in load where we do only basic initialisation
#ifdef _WIN32
    wxEntry(GetModuleHandle(NULL),NULL,NULL,SW_SHOW);
#else
    int i = 1;
    char **params = (char**)malloc(2);
    params[0] = (char*)malloc(2);
    strcpy(params[0], "");
    wxEntry(i, params);
    free(params[0]);
    free(params);
#endif

	return 0;
}
#ifdef _WIN32
extern "C" __declspec(dllexport) int unload()
#else
extern "C" int unload()
#endif
{
    //do some cleanup on exit
    wxEntryCleanup(); //call it before, or after other cleanup
	return 0;
}