#ifndef ARBUTILS_CONSTSTRING_HPP
#define ARBUTILS_CONSTSTRING_HPP

#include <cstddef>
#include <cstdint>
#include <cstring>
#include <string>
namespace Arbutils {
    class ConstString {
    private:
        const char* _str;
        size_t _length;
        uint32_t _hash;

        inline static uint32_t constexpr Hash(char const* input) {
            return (*input) ? static_cast<uint32_t>((*input)) + 33 * Hash(input + 1) : 5381;
        }
        inline static int constexpr Length(const char* str) { return *str ? 1 + Length(str + 1) : 0; }

    public:
        constexpr explicit ConstString(const char* str) : _str(str), _length(Length(str)), _hash(Hash(str)){};

        [[nodiscard]] inline constexpr const char* c_str() const noexcept { return _str; }
        [[nodiscard]] inline std::string std_str() const { return std::string(_str, _length); }

        [[nodiscard]] inline constexpr size_t Length() const noexcept { return _length; }

        [[nodiscard]] inline constexpr uint32_t GetHash() const noexcept { return _hash; }
    };
    inline constexpr ConstString operator"" _const(const char* c) { return ConstString(c); }
}

#endif // ARBUTILS_CONSTSTRING_HPP