#include "PolySDLCore.h"

using namespace Polycode;

SDLCore::SDLCore(PolycodeViewBase *view, int xRes, int yRes, bool fullScreen,int aaLevel, int frameRate) : Core(xRes, yRes, fullScreen,aaLevel, frameRate) {

	String *windowTitle = (String*)view->windowData;

	putenv("SDL_VIDEO_CENTERED=1");

	if(SDL_Init(SDL_INIT_VIDEO) < 0) {
	}
	
	renderer = new OpenGLRenderer();
	services->setRenderer(renderer);

	setVideoMode(xRes, yRes, fullScreen, aaLevel);
	SDL_WM_SetCaption(windowTitle->c_str(), windowTitle->c_str());
	
	SDL_EnableUNICODE(1);
	SDL_EnableKeyRepeat(SDL_DEFAULT_REPEAT_DELAY, SDL_DEFAULT_REPEAT_INTERVAL);
}

void SDLCore::setVideoMode(int xRes, int yRes, bool fullScreen, int aaLevel) {	
	SDL_GL_SetAttribute( SDL_GL_DEPTH_SIZE, 24);	
	SDL_GL_SetAttribute( SDL_GL_DOUBLEBUFFER, 1);			
	SDL_GL_SetAttribute( SDL_GL_RED_SIZE,   8);
	SDL_GL_SetAttribute( SDL_GL_GREEN_SIZE, 8);
	SDL_GL_SetAttribute( SDL_GL_BLUE_SIZE,  8);
	SDL_GL_SetAttribute( SDL_GL_ALPHA_SIZE, 8);
	
	if(aaLevel > 0) {
		SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 1);
		SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, aaLevel); //0, 2, 4	
	} else {
		SDL_GL_SetAttribute( SDL_GL_MULTISAMPLEBUFFERS, 0);
		SDL_GL_SetAttribute( SDL_GL_MULTISAMPLESAMPLES, 0);
	}
	
	SDL_GL_SetAttribute(SDL_GL_SWAP_CONTROL, 0);
	
	if(fullScreen) {
		if( SDL_SetVideoMode(xRes, yRes, 0, SDL_OPENGL|SDL_FULLSCREEN) == NULL ) {
		}	
	} else {
		if( SDL_SetVideoMode(xRes, yRes, 0, SDL_OPENGL) == NULL ) {
		}
	}
	
	renderer->Resize(xRes, yRes);
	CoreServices::getInstance()->getMaterialManager()->reloadProgramsAndTextures();
}

vector<Polycode::Rectangle> SDLCore::getVideoModes() {
	vector<Polycode::Rectangle> retVector;
	
	SDL_Rect **modes;
	modes=SDL_ListModes(NULL, SDL_FULLSCREEN);
	for(int i=0;modes[i];++i) {
		Rectangle res;
		res.w = modes[i]->w;
		res.h = modes[i]->h;
		retVector.push_back(res);
	}	
	
	return retVector;
}

SDLCore::~SDLCore() {
	SDL_Quit();
}

int SDLThreadFunc(void *data) {
	Threaded *target = (Threaded*)data;
	target->runThread();
	return 1;
}

void SDLCore::createThread(Threaded *target) {
	SDL_CreateThread(SDLThreadFunc, (void*)target);
}

unsigned int SDLCore::getTicks() {
	return SDL_GetTicks();
}

void SDLCore::enableMouse(bool newval) {
	if(newval) {
		SDL_ShowCursor(1);
		SDL_WM_GrabInput(SDL_GRAB_OFF);
	} else {
		SDL_ShowCursor(0);
		SDL_WM_GrabInput(SDL_GRAB_ON);
	}
	Core::enableMouse(newval);
}
	
bool SDLCore::Update() {
	if(!running)
		return false;
	
	renderer->BeginRender();
	updateCore();
	renderer->EndRender();
	SDL_GL_SwapBuffers();
	
	SDL_Event event;
	while ( SDL_PollEvent(&event) ) {
			switch (event.type) {
				case SDL_QUIT:
					running = false;
				break;
				case SDL_JOYBUTTONDOWN:
//					input->setKeyState((PolyKEY)(event.key.keysym.sym), true);
				break;
				case SDL_KEYDOWN:
					input->setKeyState((PolyKEY)(event.key.keysym.sym), (char)event.key.keysym.unicode, true, getTicks());
				break;
				case SDL_KEYUP:
					input->setKeyState((PolyKEY)(event.key.keysym.sym), (char)event.key.keysym.unicode, false, getTicks());
				break;
				case SDL_MOUSEBUTTONDOWN:
					if(event.button.button == SDL_BUTTON_WHEELUP) {
						input->mouseWheelUp(getTicks());
					} else if(event.button.button == SDL_BUTTON_WHEELDOWN) {
						input->mouseWheelDown(getTicks());
					} else {
						input->setMouseButtonState(CoreInput::MOUSE_BUTTON1, true, getTicks());
					}
				break;
				case SDL_MOUSEBUTTONUP:
					if(event.button.button == SDL_BUTTON_WHEELUP || event.button.button == SDL_BUTTON_WHEELDOWN) {						
					} else {
						input->setMouseButtonState(CoreInput::MOUSE_BUTTON1, false, getTicks());
					}
				break;
				case SDL_MOUSEMOTION:
					input->setDeltaPosition(event.motion.xrel, event.motion.yrel);					
					input->setMousePosition(event.motion.x, event.motion.y, getTicks());
				break;
				default:
					break;
			}
		}
	doSleep();	
	return running;
}

void SDLCore::setCursor(int cursorType) {

}

void SDLCore::lockMutex(CoreMutex *mutex) {
	SDLCoreMutex *smutex = (SDLCoreMutex*)mutex;
	SDL_mutexP(smutex->pMutex);

}

void SDLCore::unlockMutex(CoreMutex *mutex) {
	SDLCoreMutex *smutex = (SDLCoreMutex*)mutex;
	SDL_mutexV(smutex->pMutex);
}

CoreMutex *SDLCore::createMutex() {
	SDLCoreMutex *mutex = new SDLCoreMutex();
	mutex->pMutex = SDL_CreateMutex();
	return mutex;	
}

void SDLCore::copyStringToClipboard(String str) {

}

String SDLCore::getClipboardString() {

}

void SDLCore::createFolder(String folderPath) {

}

void SDLCore::copyDiskItem(String itemPath, String destItemPath) {

}

void SDLCore::moveDiskItem(String itemPath, String destItemPath) {

}

void SDLCore::removeDiskItem(String itemPath) {
}

String SDLCore::openFolderPicker() {

}

vector<string> SDLCore::openFilePicker(vector<CoreFileExtension> extensions, bool allowMultiple) {

}

void SDLCore::resizeTo(int xRes, int yRes) {
	renderer->Resize(xRes, yRes);
}