#include "OgreControl.h"

#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
// This function will locate the path to our application on OS X,
// unlike windows you can not rely on the curent working directory
// for locating your configuration files and resources.
std::string macBundlePath()
{
	char path[1024];
	CFBundleRef mainBundle = CFBundleGetMainBundle();
	assert(mainBundle);

	CFURLRef mainBundleURL = CFBundleCopyBundleURL(mainBundle);
	assert(mainBundleURL);

	CFStringRef cfStringRef = CFURLCopyFileSystemPath( mainBundleURL, kCFURLPOSIXPathStyle);
	assert(cfStringRef);

	CFStringGetCString(cfStringRef, path, 1024, kCFStringEncodingASCII);

	CFRelease(mainBundleURL);
	CFRelease(cfStringRef);

	return std::string(path);
}
#endif


OgreControl::OgreControl()
{
	mRoot = 0;
	// Provide a nice cross platform solution for locating the configuration files
	// On windows files are searched for in the current working directory, on OS X however
	// you must provide the full path, the helper function macBundlePath does this for us.
#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
	mResourcePath = macBundlePath() + "/Contents/Resources/";
#else
	mResourcePath = "";
#endif
}


// standard destructor
OgreControl::~OgreControl()
{
	if (mRoot)
		delete mRoot;
}


/**------------- SETTING UP OGRE --------------**/

bool OgreControl::initialise(void)
{
	String pluginsPath;
	// only use plugins.cfg if not static
#ifndef OGRE_STATIC_LIB
	pluginsPath = mResourcePath + "plugins.cfg";
#endif

	mRoot = new Root(pluginsPath, 
		mResourcePath + "ogre.cfg", mResourcePath + "Ogre.log");

	setupResources();

	if (!configure())
		return false;

	return true;
}


/// Method which will define the source of resources (other than current folder)
void OgreControl::setupResources(void)
{
	// Load resource paths from config file
	ConfigFile cf;
	cf.load(mResourcePath + "resources.cfg");

	// Go through all sections & settings in the file
	ConfigFile::SectionIterator seci = cf.getSectionIterator();

	String secName, typeName, archName;
	while (seci.hasMoreElements())
	{
		secName = seci.peekNextKey();
		ConfigFile::SettingsMultiMap *settings = seci.getNext();
		ConfigFile::SettingsMultiMap::iterator i;
		for (i = settings->begin(); i != settings->end(); ++i)
		{
			typeName = i->first;
			archName = i->second;
#if OGRE_PLATFORM == OGRE_PLATFORM_APPLE
			// OS X does not set the working directory relative to the app,
			// In order to make things portable on OS X we need to provide
			// the loading with it's own bundle path location
			ResourceGroupManager::getSingleton().addResourceLocation(
				String(macBundlePath() + "/" + archName), typeName, secName);
#else
			ResourceGroupManager::getSingleton().addResourceLocation(
				archName, typeName, secName);
#endif
		}
	}
}


bool OgreControl::configure(void)
{
	// Show the configuration dialog and initialise the system
	// You can skip this and use root.restoreConfig() to load configuration
	// settings if you were sure there are valid ones saved in ogre.cfg
	if(!mRoot->restoreConfig() && !mRoot->showConfigDialog())
		return false;

	// user clicked OK so initialise
	// Here we choose to let the system create a default rendering window by passing 'true'
	mWindow = mRoot->initialise(true);
	mRoot->saveConfig();
	return true;
}


Root* OgreControl::getRoot(void)
{
	return mRoot;
}


RenderWindow* OgreControl::getRenderWindow(void)
{
	return mWindow;
}


Ogre::String OgreControl::getResourcePath(void)
{
	return mResourcePath;
}