create_variables_map.cpp

#include "create_variables_map.hpp"
#include "graphics/camera/cli_options.hpp"
#include "game_cli_options.hpp"
#include "graphics/cli_options.hpp"
#include "water/cli_options.hpp"
#include "states/camera_move.hpp"
#include "states/game_outer.hpp"
#include "height_map/cli_options.hpp"
#include "physics/cli_options.hpp"
#include "help_needed.hpp"
#include "json/parse_config.hpp"
#include "media_path.hpp"
#include <sge/parse/json/parse_file_exn.hpp>
#include <sge/parse/json/find_member_exn.hpp>
#include <boost/program_options/options_description.hpp>
#include <boost/program_options/variables_map.hpp>
#include <fcppt/from_std_string.hpp>
#include <fcppt/filesystem/exists.hpp>
#include <sstream>

namespace
{
fcppt::string const
options_to_string(
	boost::program_options::options_description const &o)
{
	std::ostringstream ss;
	ss << o;
	return 
		fcppt::from_std_string(
			ss.str());
}
}

boost::program_options::variables_map const
insula::create_variables_map(
	int argc,
	char **argv,
 sge::parse::json::object const &config_file)
{
	boost::program_options::options_description desc("Allowed options");

	desc.add_options()
		("console-redirect",boost::program_options::value<bool>(),"Redirect stdout and stderr to console")
		("help","produce help message");

	desc.add(
		game_cli_options());

	desc.add(
		graphics::camera::cli_options());

	desc.add(
		height_map::cli_options());

	desc.add(
		water::cli_options());

	desc.add(
		graphics::cli_options());

	desc.add(
		physics::cli_options());

	desc.add(
		states::camera_move::cli_options());

	desc.add(
		states::game_outer::cli_options());

	boost::program_options::variables_map vm;
		
	boost::program_options::store(
		boost::program_options::parse_command_line(
			argc, 
			argv, 
			desc), 
		vm);

	boost::program_options::notify(
		vm);    

	if (fcppt::filesystem::exists(media_path()/FCPPT_TEXT("user_config.json")))
	{
		boost::program_options::store(
			json::parse_config(
				sge::parse::json::parse_file_exn(
					media_path()/FCPPT_TEXT("user_config.json")),
				desc),
			vm);

		// I don't know if that's neccessary since we do it again after
		// parsing the command line
		boost::program_options::notify(
			vm);    
	}

	boost::program_options::store(
		json::parse_config(
			sge::parse::json::find_member_exn<sge::parse::json::object>(
				config_file.members,
				FCPPT_TEXT("cli")),
			desc),
		vm);

	// I don't know if that's neccessary since we do it again after
	// parsing the command line
	boost::program_options::notify(
		vm);    

	if (vm.count("help")) 
		throw 
			help_needed(
				options_to_string(
					desc));

	return vm;
}