rutile-game/src/wrappers/sdl/init.cppm

module;

#include <type_traits>
#include <SDL3/SDL_init.h>

export module wrappers.sdl.init;

import wrappers.sdl.error;

export namespace sdl
{
    using InitFlags_t = SDL_InitFlags;

    /**
     * Wrapper for the SDL_InitFlags enum/constants.
     *
     * We're using a namespace here to emulate an enum-like interface. If we used an actual enum, we would have to
     * explicitly define bit-wise operations for it (as well as for every other kind of bit flag enum.
     * (Maybe in the future this can be replaced with a more elegant template-based solution or something.)
     */
    namespace InitFlags
    {
        constexpr InitFlags_t Audio = SDL_INIT_AUDIO;
        constexpr InitFlags_t Video = SDL_INIT_VIDEO;
        constexpr InitFlags_t Joystick = SDL_INIT_JOYSTICK;
        constexpr InitFlags_t Haptic = SDL_INIT_HAPTIC;
        constexpr InitFlags_t Gamepad = SDL_INIT_GAMEPAD;
        constexpr InitFlags_t Events = SDL_INIT_EVENTS;
        constexpr InitFlags_t Sensor = SDL_INIT_SENSOR;
        constexpr InitFlags_t Camera = SDL_INIT_CAMERA;
    }

    /**
     * Wrapper for the SDL_AppResult enum.
     */
    enum class AppResult : std::underlying_type_t<SDL_AppResult>
    {
        Continue = SDL_APP_CONTINUE,
        Success = SDL_APP_SUCCESS,
        Failure = SDL_APP_FAILURE,
    };

    /**
     * Wrapper for SDL_Init().
     */
    constexpr void initialize_sdl(const InitFlags_t flags)
    {
        if (!SDL_Init(flags)) {
            throw SDLException("SDL_Init");
        }
    }

    /**
     * Wrapper for SDL_SetAppMetadataProperty().
     */
    constexpr void set_app_metadata_property(const char* property_name, const char* value)
    {
        if (!SDL_SetAppMetadataProperty(property_name, value)) {
            throw SDLException("SDL_SetAppMetadataProperty");
        }
    }
}