DFTB0.h

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#ifndef SPARROW_DFTB_H
#define SPARROW_DFTB_H

#include "Sparrow/Implementations/Dftb/Utils/DFTBCommon.h"
#include <Utils/Scf/MethodInterfaces/LcaoMethod.h>
#include <string>

namespace Scine {
namespace Utils {
class RepulsionCalculator;
class OverlapCalculator;
class ElectronicContributionCalculator;
} // namespace Utils
namespace Sparrow {

namespace dftb {
class ZeroOrderMatricesCalculator;

class DFTB0 : public Utils::LcaoMethod {
 public:
  DFTB0();
  ~DFTB0() override;
  void initializeFromParameterPath(const std::string& path);
  std::shared_ptr<DFTBCommon> getInitializer() const;
  Eigen::MatrixXd calculateGammaMatrix() const;
  std::shared_ptr<Eigen::VectorXd> calculateSpinConstantVector() const;

 private:
  DFTBCommon::AtomicParameterContainer atomParameters;   // parameters for atoms
  DFTBCommon::DiatomicParameterContainer pairParameters; // List of pointers to parameters
  std::shared_ptr<DFTBCommon> dftbBase;
  std::unique_ptr<dftb::ZeroOrderMatricesCalculator> matricesCalculator_;
};

} // namespace dftb

} // namespace Sparrow
} // namespace Scine
#endif // SPARROW_DFTB_H