Stereopermutation.h

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#ifndef INCLUDE_MOLASSEMBLER_STEREOPERMUTATIONS_STEREOPERMUTATION_H
#define INCLUDE_MOLASSEMBLER_STEREOPERMUTATIONS_STEREOPERMUTATION_H

#include "Molassembler/Shapes/Data.h"
#include "Molassembler/Temple/StrongIndexPermutation.h"

namespace Scine {
namespace Molassembler {

namespace Stereopermutations {

struct rank_tag;
using Rank = Temple::StrongIndex<rank_tag, unsigned>;

class MASM_EXPORT Stereopermutation : public Temple::Crtp::LexicographicComparable<Stereopermutation> {
public:
  using Occupation = Temple::StrongIndexPermutation<Shapes::Vertex, Rank>;

  using Link = std::pair<Shapes::Vertex, Shapes::Vertex>;

  using OrderedLinks = std::vector<Link>;


  static Occupation permuteOccupation(
    const Occupation& occupation,
    const Shapes::Permutation& permutation
  );

  static Occupation occupationFromChars(const std::string& chars);

  static OrderedLinks permuteLinks(
    const OrderedLinks& links,
    const Shapes::Permutation& permutation
  );

  Occupation occupation;
  OrderedLinks links;

  Stereopermutation() = default;
  Stereopermutation(
    Occupation passOccupation,
    OrderedLinks passLinks = {}
  );


  Stereopermutation applyPermutation(const Shapes::Permutation& permutation) const;

  std::string toString() const;

  inline auto tie() const {
    return std::tie(occupation, links);
  }
};

PURITY_WEAK MASM_EXPORT std::size_t hash_value(const Stereopermutation& assignment);

} // namespace Stereopermutations
} // namespace Molassembler
} // namespace Scine

#endif