#pragma once

#include <cinttypes>
#include <iostream>
#include <vector>

#include <SFML/Graphics/Color.hpp>

// https://stackoverflow.com/a/11994395 modified to fit my needs
#define FE_0(WHAT)
#define FE_1(WHAT, extra_arg, X) WHAT(extra_arg, X) 
#define FE_2(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_1(WHAT, extra_arg, __VA_ARGS__)
#define FE_3(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_2(WHAT, extra_arg, __VA_ARGS__)
#define FE_4(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_3(WHAT, extra_arg, __VA_ARGS__)
#define FE_5(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_4(WHAT, extra_arg, __VA_ARGS__)
#define FE_6(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_5(WHAT, extra_arg, __VA_ARGS__)
#define FE_7(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_6(WHAT, extra_arg, __VA_ARGS__)
#define FE_8(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_7(WHAT, extra_arg, __VA_ARGS__)
#define FE_9(WHAT, extra_arg, X, ...) WHAT(extra_arg, X)FE_8(WHAT, extra_arg, __VA_ARGS__)

#define GET_MACRO(_0,_1,_2,_3,_4,_5,_6,_7,_8,_9,NAME,...) NAME 
#define FOR_EACH(action,extra_arg,...) \
  GET_MACRO(_0,__VA_ARGS__,FE_9,FE_8,FE_7,FE_6,FE_5,FE_4,FE_3,FE_2,FE_1,FE_0)(action,extra_arg,__VA_ARGS__)

#define CONFIG(name, ...) \
    struct name {\
        __VA_ARGS__\
    };

#define SECTION(name, ...) \
    struct {\
        __VA_ARGS__\
    } name;

#define UINT uintmax_t
#define VAR_UINT(section, name) UINT name;
#define VAR_UINT_D(section, name, default) UINT name = default;

#define INT intmax_t
#define VAR_INT(section, name) INT name;
#define VAR_INT_D(section, name, default) INT name = default;

#define STRING std::string
#define VAR_STRING(section, name) STRING name;
#define VAR_STRING_D(section, name, default) STRING name = default;

#define BOOL bool
#define VAR_BOOL(section, name) BOOL name;
#define VAR_BOOL_D(section, name, default) BOOL name = default;

#define FLOAT double
#define VAR_FLOAT(section, name) FLOAT name;
#define VAR_FLOAT_D(section, name, default) FLOAT name = default;
#define COLOUR sf::Color
#define VAR_COLOUR(section, name) COLOUR name;
#define VAR_COLOUR_D(section, name, default) COLOUR name = default;

#define VAR_LIST(section, name, type) std::vector<type> name;
#define VAR_LIST_SEP(section, name, type, sep) std::vector<type> name;
#define VAR_LIST_NUMBERED(section, name, type) std::vector<type> name;

#define ENUM_TO_STRING_CASE(name, e) case name::e: os << #e;
#define ENUM_FROM_STRING(name, e) if (input == #e) en = name::e;

#define ENUM(name, ...) \
    enum class name {\
        __VA_ARGS__\
    };\
\
    inline std::ostream &operator<<(std::ostream &os, const name &en) {\
        switch (en) {\
            FOR_EACH(ENUM_TO_STRING_CASE, name, __VA_ARGS__)\
        }\
        return os;\
    }\
\
    inline std::istream &operator>>(std::istream &is, name &en) {\
        std::string input;\
        is >> input;\
        FOR_EACH(ENUM_FROM_STRING, name, __VA_ARGS__)\
        return is;\
    }

#define VAR_ENUM(section, name, enum_type) enum_type name;
#define VAR_ENUM_D(section, name, enum_type, default) enum_type name = enum_type::default;

#define VAR_BITS(section, name, amount, offset) unsigned int name : amount;

#define STRUCT_FIELD_TO_STRING(name, field) os << #field << ": " << str.field << "\n";
#define STRUCT_FROM_STRING(name, field) \
    std::getline(is, input, ",");\
    std::stringstream ss(input);\
    ss >> str.field;

#define STRUCT(name, ...) \
    struct name {\
        __VA_ARGS__\
    };\
\
    inline std::ostream &operator<<(std::ostream &os, const name &str) {\
        os << #name << " {\n";\
        FOR_EACH(STRUCT_FIELD_TO_STRING, name, __VA_ARGS__)\
        os << "}\n";\
        return os;\
    }\
\
    inline std::istream &operator>>(std::istream &is, name &str) {\
        std::string input;\
        FOR_EACH(STRUCT_FROM_STRING, name, __VA_ARGS__)\
        return is;\
    }

#define VAR_STRUCT(section, name, struct_type) struct_type name;
#define VAR_STRUCT_D(section, name, struct_type, default) struct_type name = default;

#include <config_def.hpp>

#undef FE_0
#undef FE_1
#undef FE_2
#undef FE_3
#undef FE_4
#undef FE_5

#undef GET_MACRO
#undef FOR_EACH

#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_TO_STRING_CASE
#undef ENUM_FROM_STRING

#undef ENUM
#undef VAR_ENUM
#undef VAR_ENUM_D

#undef VAR_BITS

#undef STRUCT
#undef VAR_STRUCT
#undef VAR_STRUCT_D

#undef VAR_LIST
#undef VAR_LIST_SEP
#undef VAR_LIST_NUMBERED