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 // G4FermiBreakUpAN alternative FermiBreakUp model
 // by A. Novikov (January 2025)
 //
 
 #ifndef G4FERMIDATATYPES_HH
 #define G4FERMIDATATYPES_HH
 
 #include "G4LorentzVector.hh"
 #include "G4ThreeVector.hh"
 #include "globals.hh"
 
 namespace
 {
   static constexpr G4int MAX_Z = 9;
   static constexpr G4int MAX_A = 17;
 }
 
 class G4FermiAtomicMass
 {
   public:
     using ValueType = std::uint32_t;
 
     G4FermiAtomicMass() = default;
 
     explicit constexpr G4FermiAtomicMass(ValueType mass) : mass_(mass) {}
 
     G4FermiAtomicMass(const G4FermiAtomicMass& other) = default;
 
     G4FermiAtomicMass(G4FermiAtomicMass&& other) = default;
 
     G4FermiAtomicMass& operator=(const G4FermiAtomicMass& other) = default;
 
     G4FermiAtomicMass& operator=(G4FermiAtomicMass&& other) = default;
 
     constexpr operator std::uint32_t() const { return mass_; }
 
     constexpr operator G4int() const { return mass_; }
 
     constexpr operator G4double() const { return mass_; }
 
     G4bool operator<(const G4FermiAtomicMass& other) const { return mass_ < other.mass_; }
 
     G4bool operator>(const G4FermiAtomicMass& other) const { return mass_ > other.mass_; }
 
     G4bool operator<=(const G4FermiAtomicMass& other) const { return mass_ <= other.mass_; }
 
     G4bool operator>=(const G4FermiAtomicMass& other) const { return mass_ >= other.mass_; }
 
     G4bool operator==(const G4FermiAtomicMass& other) const { return mass_ == other.mass_; }
 
     G4bool operator!=(const G4FermiAtomicMass& other) const { return mass_ != other.mass_; }
 
   private:
     ValueType mass_;
 };
 
 class G4FermiChargeNumber
 {
   public:
     using ValueType = std::uint32_t;
 
     G4FermiChargeNumber() = default;
 
     explicit constexpr G4FermiChargeNumber(ValueType charge) : charge_(charge) {}
 
     G4FermiChargeNumber(const G4FermiChargeNumber& other) = default;
 
     G4FermiChargeNumber(G4FermiChargeNumber&& other) = default;
 
     G4FermiChargeNumber& operator=(const G4FermiChargeNumber& other) = default;
 
     G4FermiChargeNumber& operator=(G4FermiChargeNumber&& other) = default;
 
     constexpr operator std::uint32_t() const { return charge_; }
 
     constexpr operator G4int() const { return charge_; }
 
     constexpr operator G4double() const { return charge_; }
 
     G4bool operator<(const G4FermiChargeNumber& other) const { return charge_ < other.charge_; }
 
     G4bool operator>(const G4FermiChargeNumber& other) const { return charge_ > other.charge_; }
 
     G4bool operator<=(const G4FermiChargeNumber& other) const { return charge_ <= other.charge_; }
 
     G4bool operator>=(const G4FermiChargeNumber& other) const { return charge_ >= other.charge_; }
 
     G4bool operator==(const G4FermiChargeNumber& other) const { return charge_ == other.charge_; }
 
     G4bool operator!=(const G4FermiChargeNumber& other) const { return charge_ != other.charge_; }
 
   private:
     ValueType charge_;
 };
 
 struct G4FermiNucleiData
 {
     G4FermiAtomicMass atomicMass;
     G4FermiChargeNumber chargeNumber;
 
     G4bool operator<(const G4FermiNucleiData& other) const
     {
       return atomicMass < other.atomicMass
              || (atomicMass == other.atomicMass && chargeNumber < other.chargeNumber);
     }
 
     G4bool operator==(const G4FermiNucleiData& other) const
     {
       return atomicMass == other.atomicMass && chargeNumber == other.chargeNumber;
     }
 
     G4bool operator!=(const G4FermiNucleiData& other) const
     {
       return atomicMass != other.atomicMass || chargeNumber != other.chargeNumber;
     }
 };
 
 namespace std
 {
 template<>
 struct hash<G4FermiNucleiData>
 {
     std::size_t operator()(const G4FermiNucleiData& key) const
     {
       auto mass = G4int(key.atomicMass);
       auto charge = G4int(key.chargeNumber);
       return (mass * (mass + 1)) / 2 + charge;
     }
 };
 
 std::string to_string(G4FermiAtomicMass mass);
 std::string to_string(G4FermiChargeNumber charge);
 
 std::ostream& operator<<(std::ostream& out, const G4FermiAtomicMass& mass);
 std::istream& operator>>(std::istream& in, G4FermiAtomicMass& mass);
 
 std::ostream& operator<<(std::ostream& out, const G4FermiChargeNumber& charge);
 std::istream& operator>>(std::istream& in, G4FermiChargeNumber& charge);
 }  // namespace std
 
 constexpr G4FermiAtomicMass operator""_m(unsigned long long mass)
 {
   return G4FermiAtomicMass(static_cast<std::uint32_t>(mass));
 }
 
 constexpr G4FermiChargeNumber operator""_c(unsigned long long charge)
 {
   return G4FermiChargeNumber(static_cast<std::uint32_t>(charge));
 }
 
 #define FERMI_ASSERT_MSG(COND, MSG)  \
   if (!(COND)) {                     \
     G4ExceptionDescription ed;       \
     ed << "assertion failed: \"" << #COND << '\"' << " at " << __FILE__ << ':' << __LINE__ \
             << '\n'  \
             << MSG;  \
     G4Exception("G4FermiBreakUpAN: ", "fermi03", FatalException, ed, ""); \
 }
 
 #endif  // G4FERMIDATATYPES_HH

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