color.hpp

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#ifndef RUSH_COLOR_HPP
#define RUSH_COLOR_HPP
 
#include <cstdint>
#include <ostream>
#include <string>
#include <type_traits>
 
namespace rush::color {

enum class Foreground : std::uint8_t {
  black = 30,
  red,
  green,
  yellow,
  blue,
  magenta,
  cyan,
  gray,
  white = 0
};

enum class Background : std::uint8_t {
  black = 40,
  red,
  green,
  yellow,
  blue,
  magenta,
  cyan,
  gray
};

enum class Style : std::uint8_t {
  bold = 1,
  dim,
  italic,
  underline,
  blink,
  rblink,
  reversed,
  conceal,
  crossed
};
 
constexpr char reset[] = "\033[0m";  
constexpr char endl[] = "\033[0m\n"; 
 
using fg = Foreground; 
using bg = Background; 
using st = Style;      

template <typename T>
using checkType = std::enable_if_t<std::is_same_v<T, Style> || std::is_same_v<T, Foreground> || std::is_same_v<T, Background>, std::ostream &>;
 
inline std::string escape_sequence(int x) {
  return static_cast<std::string>("\033[") + std::to_string(x) + static_cast<std::string>("m");
}

template <typename T>
checkType<T> operator<<(std::ostream &os, const T x) {
  os << escape_sequence(static_cast<int>(x));
  return os;
}
 
} // namespace rush::color
 
#endif // RUSH_COLOR_HPP