average_meter_values.hpp

// SPDX-License-Identifier: Apache-2.0
// Copyright 2020 - 2023 Pionix GmbH and Contributors to EVerest
 
#pragma once
 
#include <everest/logging.hpp>
#include <everest/timer.hpp>
#include <ocpp/common/types.hpp>
#include <ocpp/v2/ocpp_enums.hpp>
#include <ocpp/v2/ocpp_types.hpp>
#include <ocpp/v2/types.hpp>
#include <ocpp/v2/utils.hpp>
#include <vector>
namespace ocpp {
namespace v2 {
class AverageMeterValues {
 
public:
    AverageMeterValues();
    void set_values(const MeterValue& meter_value);
    MeterValue retrieve_processed_values();
    void clear_values();
 
private:
    struct MeterValueCalc {
        double sum;
        int num_elements;
    };
    struct MeterValueMeasurands {
        MeasurandEnum measurand;
        std::optional<PhaseEnum> phase;       // measurand may or may not have a phase field
        std::optional<LocationEnum> location; // measurand may or may not have location field
 
        // Define a comparison operator for the struct
        bool operator<(const MeterValueMeasurands& other) const {
            // Using tie here to compare the two lexicographically instead of writing it all out
            return std::tie(measurand, location, phase) < std::tie(other.measurand, other.location, other.phase);
        }
    };
 
    MeterValue averaged_meter_values;
    std::mutex avg_meter_value_mutex;
    std::map<MeterValueMeasurands, MeterValueCalc> aligned_meter_values;
    bool is_avg_meas(const SampledValue& sample);
    void average_meter_value();
};
} // namespace v2
 
} // namespace ocpp