#ifndef CONFIG
#define CONFIG_DEFINED

#define CONFIG(name, ...)
#define SECTION(name, ...)

#define UINT
#define VAR_UINT(section, name)
#define VAR_UINT_D(section, name, default)

#define INT
#define VAR_INT(section, name)
#define VAR_INT_D(section, name, default)

#define STRING
#define VAR_STRING(section, name)
#define VAR_STRING_D(section, name, default)

#define BOOL
#define VAR_BOOL(section, name)
#define VAR_BOOL_D(section, name, default)

#define FLOAT
#define VAR_FLOAT(section, name)
#define VAR_FLOAT_D(section, name, default)
#define COLOUR
#define VAR_COLOUR(section, name)
#define VAR_COLOUR_D(section, name, default)

#define ENUM(name, ...)
#define VAR_ENUM(section, name, enum_type)
#define VAR_ENUM_D(section, name, enum_type, default)

#define STRUCT_STREAM_OPS(name, ...)

#define STRUCT(name, ...)
#define VAR_STRUCT(section, name, struct_type)
#define VAR_STRUCT_D(section, name, struct_type, default)

#define VAR_LIST(section, name, type)
#define VAR_LIST_SEP(section, name, type, sep)
#define VAR_LIST_NUMBERED(section, name, type)
#endif // CONFIG

ENUM(Countdown,
    NONE,
    NORMAL,
    HALF,
    DOUBLE
)

ENUM(SampleSet,
    DEFAULT,
    NORMAL,
    SOFT,
    DRUM
)

ENUM(Mode,
    STANDARD,
    TAIKO,
    CATCH,
    MANIA
)

ENUM(OverlayPosition,
    NO_CHANGE,
    BELOW,
    ABOVE
)

STRUCT(TimingPoint,
    VAR_UINT(, time)
    VAR_FLOAT(, beatLength)
    VAR_UINT(, meter)
    VAR_ENUM(, sampleSet, SampleSet)
    VAR_UINT(, sampleIndex)
    VAR_UINT(, volume)
    VAR_BOOL(, uninherited)
    VAR_UINT(, effects)
)
STRUCT_STREAM_OPS(TimingPoint, time, beatLength, meter, sampleSet, sampleIndex, volume, uninherited, effects)

STRUCT(HitObjectType,
    VAR_UINT(, hitCircle)
    VAR_UINT(, slider)
    VAR_UINT(, newCombo)
    VAR_UINT(, spinner)
    VAR_UINT(, colourHax)
    VAR_UINT(, holdNote)
)
STRUCT_STREAM_OPS(HitObjectType, hitCircle, slider, newCombo, spinner, colourHax, holdNote)

STRUCT(HitSound,
    VAR_UINT(, normal)
    VAR_UINT(, whistle)
    VAR_UINT(, finish)
    VAR_UINT(, clap)
)
STRUCT_STREAM_OPS(HitSound, normal, whistle, finish, clap)

STRUCT(HitObject,
    VAR_INT(, x)
    VAR_INT(, y)
    VAR_INT(, time)
    VAR_STRUCT(, type, HitObjectType)
    VAR_STRUCT(, hitSound ,HitSound)
)
STRUCT_STREAM_OPS(HitObject, x, y, time, type, hitSound)

// https://osu.ppy.sh/wiki/en/Client/File_formats/osu_%28file_format%29
CONFIG(Difficulty,
    VAR_UINT(, formatVersion)
    SECTION(general,
        VAR_STRING(.general, audioFilename)
        VAR_UINT_D(.general, audioLeadIn, 0)
        VAR_INT_D(.general, previewTime, -1)
        VAR_ENUM_D(.general, countdown, Countdown, NORMAL)
        VAR_ENUM_D(.general, sampleSet, SampleSet, NORMAL)
        VAR_FLOAT_D(.general, stackLeniency, 0.7)
        VAR_ENUM_D(.general, mode, Mode, STANDARD)
        VAR_BOOL_D(.general, letterboxInBreaks, false)
        VAR_BOOL_D(.general, useSkinSprites, false)
        VAR_ENUM_D(.general, overlayPosition, OverlayPosition, NO_CHANGE)
        VAR_STRING(.general, skinPreference)
        VAR_BOOL_D(.general, epilepsyWarning, false)
        VAR_UINT_D(.general, countdownOffset, 0)
        VAR_BOOL_D(.general, specialStyle, false)
        VAR_BOOL_D(.general, widescreenStoryboard, false)
        VAR_BOOL_D(.general, sampleMatchPlaybackRate, false)
    )
    SECTION(editor,
        VAR_LIST_SEP(.editor, bookmarks, uint, ",")
        VAR_FLOAT(.editor, distanceSpacing)
        VAR_UINT(.editor, beatDivisor)
        VAR_UINT(.editor, gridSize)
        VAR_FLOAT(.editor, timelineZoom)
    )
    SECTION(metadata,
        VAR_STRING(.metadata, title)
        VAR_STRING(.metadata, titleUnicode)
        VAR_STRING(.metadata, artist)
        VAR_STRING(.metadata, artistUnicode)
        VAR_STRING(.metadata, creator)
        VAR_STRING(.metadata, version)
        VAR_STRING(.metadata, source)
        VAR_LIST_SEP(.metadata, tags, STRING, " ")
        VAR_UINT(.metadata, beatmapID)
        VAR_UINT(.metadata, beatmapSetID)
    )
    SECTION(difficulty,
        VAR_FLOAT(.difficulty, hpDrainRate)
        VAR_FLOAT(.difficulty, circleSize)
        VAR_FLOAT(.difficulty, overallDifficulty)
        VAR_FLOAT(.difficulty, approachRate)
        VAR_FLOAT(.difficulty, sliderMultiplier)
        VAR_FLOAT(.difficulty, sliderTickRate)
    )
    VAR_LIST(, timingPoints, TimingPoint)

    SECTION(colours,
        VAR_LIST_NUMBERED(.colours, combo, COLOUR)
        VAR_COLOUR(.colours, sliderTrackOverride)
        VAR_COLOUR(.colours, sliderBorder)
    )

    VAR_LIST(, hitObjects, HitObject)
)

#ifdef CONFIG_DEFINED
#undef CONFIG
#undef SECTION

#undef UINT
#undef VAR_UINT
#undef VAR_UINT_D

#undef INT
#undef VAR_INT
#undef VAR_INT_D

#undef STRING
#undef VAR_STRING
#undef VAR_STRING_D

#undef BOOL
#undef VAR_BOOL
#undef VAR_BOOL_D

#undef FLOAT
#undef VAR_FLOAT
#undef VAR_FLOAT_D
#undef COLOUR
#undef VAR_COLOUR
#undef VAR_COLOUR_D

#undef ENUM
#undef VAR_ENUM
#undef VAR_ENUM_D

#undef STRUCT
#undef VAR_STRUCT
#undef VAR_STRUCT_D

#undef VAR_LIST
#undef VAR_LIST_SEP
#undef VAR_LIST_NUMBERED
#endif // CONFIG_DEFINED