#include "options.h"
#include "version.h"
#include "game.h"

#include "smlnode.h"

#include <stdlib.h>

#include <bu/file.h>
#include <bu/optparser.h>
#include <bu/sio.h>
#include <gats/gatsstream.h>
#include <gats/types.h>

#include "interfaceplugger.h"

using namespace Bu;

Options::Options() :
	sInterface("console")
{
}

Options::~Options()
{
}

void Options::parse( int argc, char *argv[] )
{
	Bu::OptParser opt;

	opt.addHelpBanner("STAGE v" VERSION
			" - Simple, Textual, Adventure Game Environment");
	opt.addHelpBanner("usage: " + Bu::String(argv[0]) +
			" [options] <filename>\n");

	Bu::String sIFaces;
	Bu::StringList lIFaces = InterfacePlugger::getInstance().getPluginList();
	bool bBegin = true;
	for( Bu::List<Bu::String>::const_iterator i = lIFaces.begin(); i; i++ )
	{
		if( bBegin )
			bBegin = false;
		else
			sIFaces += ", ";
		sIFaces += *i;
	}

	opt.addOption( Bu::slot( this, &Options::smlTest ), "sml-test",
			"Test SML parser." );
	opt.addOption( sCommand, "command",
			"Set the command to execute once the game is loaded.  "
			"This does not work with all interfaces.");
	opt.addOption( Bu::slot( this, &Options::version ), "version",
			"Show full version info." );
	opt.addOption( Bu::slot( this, &Options::builtins ), "builtins",
			"List available builtins." );
	opt.addOption( Bu::slot( this, &Options::printResult ), "print-result",
			"Print the result from a save file." );
	opt.addOption( sInterface, 'i', "interface",
			"Select interface module. Default is " + sInterface + 
			".  Available modules: " + sIFaces );

	opt.addHelpOption('h', "help");
	opt.setNonOption( Bu::slot( this, &Options::nonOption ) );
	opt.parse( argc, argv );
}

int Options::version( Bu::StrArray aArgs )
{
	sio << "STAGE v" VERSION " - Simple, Textual, Adventure Game Environment."
		<< sio.nl << sio.nl;
	sio << "Full version: " FULLVER << sio.nl;
	sio << "Build date:   " TIMEVER << sio.nl;
	sio << "Build id:     " SHAVER << sio.nl;
	sio << sio.nl;
	exit( 0 );
	return 0;
}

int Options::builtins( Bu::StrArray aArgs )
{
	sio << "Current builtin functions:" << sio.nl;
	Game g;
	const Game::FunctionHash &hFnc = g.getFunctionHash();
	for( Game::FunctionHash::const_iterator i = hFnc.begin(); i; i++ )
	{
		sio << "  - " << i.getKey() << sio.nl;
	}
	sio << sio.nl;
	exit( 0 );
	return 0;
}

int Options::smlTest( Bu::Array<Bu::String> aArgs )
{
	Bu::String sContent;
	Bu::File fIn( aArgs[1], Bu::File::Read );
	while( !fIn.isEos() )
	{
		char buf[4096];
		sContent.append( buf, fIn.read( buf, 4096 ) );
	}
	fIn.close();

	SmlNode *pRoot = SmlNode::parse( sContent );
	sio << *pRoot << sio.nl;

	try
	{
		InterfacePlugger &ip = InterfacePlugger::getInstance();
		Interface *pIface = ip.instantiate( sInterface );
		pIface->display( pRoot );
		ip.destroy( pIface );
	}
	catch( Bu::HashException &e )
	{
		sio << "No such interface found." << sio.nl;
	}

	delete pRoot;

	exit( 0 );
	return 0;
}

int Options::nonOption( Bu::Array<Bu::String> aArgs )
{
	sFile = aArgs[0];

	return 0;
}

int Options::printResult( Bu::Array<Bu::String> aArgs )
{
	Gats::GatsStream gsIn( sioRaw );
	Gats::Object *pObj = gsIn.readObject();
	Gats::Dictionary *pDict = dynamic_cast<Gats::Dictionary *>(pObj);

	sio << pDict->getStr("result") << sio.nl << sio.nl << "Running: "
		<< pDict->getBool("running") << sio.nl;

	delete pObj;

	exit( 0 );

	return 0;
}