#ifndef FESA_ANALYSIS_LINEAR_FREQUENCY_PROCEDURE_H_
#define FESA_ANALYSIS_LINEAR_FREQUENCY_PROCEDURE_H_

#include "fesa/analysis/eigen_analysis_state.h"

namespace fesa {

class Domain;
class EigenSolver;

/// @brief Executes the supported linear MITC4 frequency procedure.
class LinearFrequencyProcedureExecutor final {
 public:
  /// @brief Preserves default FEAST construction for existing callers.
  LinearFrequencyProcedureExecutor() = default;

  /// @brief Borrows a solver that must outlive this executor and its calls.
  explicit LinearFrequencyProcedureExecutor(const EigenSolver& solver) : solver_(&solver) {}

  /// @brief Builds, solves, and validates one frequency modal candidate.
  /// @return Requested physical modes plus all-c validation evidence.
  Result<EigenAnalysisState> Execute(const Domain& domain) const;

 private:
  const EigenSolver* solver_{nullptr};
};

}  // namespace fesa

#endif  // FESA_ANALYSIS_LINEAR_FREQUENCY_PROCEDURE_H_