WeightsFileReader.h

#ifndef SRC_CPP_LPNAMER_INPUTREADER_WEIGHTSFILEREADER_H
#define SRC_CPP_LPNAMER_INPUTREADER_WEIGHTSFILEREADER_H
#include <filesystem>
#include <stdexcept>
#include <vector>
 
#include "antares-xpansion/lpnamer/helper/ProblemGenerationLogger.h"
#include "antares-xpansion/xpansion_interfaces/LogUtils.h"
 
class WeightsFileReader
{
private:
    std::filesystem::path weights_file_path_;
    size_t number_of_active_years_;
    std::shared_ptr<ProblemGenerationLog::ProblemGenerationLogger> logger_;
    bool null_weights = true;
    std::vector<double> weights_list_;
 
    int CountValues() const;
    bool AreAllWeightsNull() const;
    double GetWeightFromLine(const std::string& line, int idx) const;
    void CheckValue(const double line, int idx);
    void CheckFileIsNotEmpty(std::ifstream& file) const;
 
public:
    explicit WeightsFileReader(
      const std::filesystem::path& weights_file_path,
      const size_t number_of_active_years,
      std::shared_ptr<ProblemGenerationLog::ProblemGenerationLogger> logger):
        weights_file_path_(weights_file_path),
        number_of_active_years_(number_of_active_years),
        logger_(logger)
    {
    }
 
    class WeightsFileError: public LogUtils::XpansionError<std::runtime_error>
    {
        using LogUtils::XpansionError<std::runtime_error>::XpansionError;
    };
 
    class WeightsFileOpenError: public WeightsFileError
    {
        using WeightsFileError::WeightsFileError;
    };
 
    class InvalidYearsWeightValue: public WeightsFileError
    {
        using WeightsFileError::WeightsFileError;
    };
 
    class InvalidYearsWeightNumber: public WeightsFileError
    {
        using WeightsFileError::WeightsFileError;
    };
 
    class OnlyNullYearsWeightValue: public WeightsFileError
    {
        using WeightsFileError::WeightsFileError;
    };
 
    class WeightsFileIsEmtpy: public WeightsFileError
    {
        using WeightsFileError::WeightsFileError;
    };
 
    // column of non-negative weights
    // sum of weights is positive
    // nb_weight equal nb_active_yearse
    bool CheckWeightsFile();
 
    std::vector<double> WeightsList() const
    {
        return weights_list_;
    }
};
#endif // SRC_CPP_LPNAMER_INPUTREADER_WEIGHTSFILEREADER_H