113 lines
2.9 KiB
C++
113 lines
2.9 KiB
C++
#ifndef CALCULATE_PRICE_H
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#define CALCULATE_PRICE_H
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#include <time.h>
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#include <inttypes.h>
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#include <QString>
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#ifdef WIN32
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#ifdef CALCULATE_LIBRARY_EXPORTS
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#define CALCULATE_LIBRARY_API __declspec(dllexport)
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#else
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#define CALCULATE_LIBRARY_API __declspec(dllimport)
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#endif
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#else
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#define CALCULATE_LIBRARY_API
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#endif
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class Configuration;
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typedef Configuration parking_tariff_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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struct CALCULATE_LIBRARY_API price_t {
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uint32_t units;
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double netto;
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double brutto;
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double vat_percentage;
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double vat;
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};
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struct CALCULATE_LIBRARY_API CalcState {
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enum class State : uint8_t {
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SUCCESS,
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ERROR_PARSING_ZONE_NR,
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ERROR_LOADING_TARIFF,
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ERROR_PARSING_TARIFF,
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NEGATIVE_PARING_TIME,
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WRONG_PARAM_VALUES,
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ABOVE_MAX_PARKING_TIME,
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BELOW_MIN_PARKING_TIME,
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BELOW_MIN_PARKING_PRICE,
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OVERPAID
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};
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State m_status;
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QString m_desc;
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explicit CalcState() : m_status(State::SUCCESS), m_desc("") {}
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explicit operator bool() const noexcept {
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return (m_status == State::SUCCESS);
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}
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explicit operator QString () const noexcept {
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QString s;
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switch (m_status) {
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case State::SUCCESS:
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s = "SUCCESS";
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break;
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case State::ERROR_PARSING_ZONE_NR:
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s = "ERROR_PARSING_ZONE_NR";
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break;
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case State::ERROR_LOADING_TARIFF:
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s = "ERROR_LOADING_TARIFF";
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break;
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case State::ERROR_PARSING_TARIFF:
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s = "ERROR_PARSING_TARIFF";
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break;
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case State::NEGATIVE_PARING_TIME:
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s = "NEGATIVE_PARKING_TIME";
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break;
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case State::ABOVE_MAX_PARKING_TIME:
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s = "ABOVE_MAX_PARKING_TIME";
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break;
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case State::WRONG_PARAM_VALUES:
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s = "WRONG_PARAM_VALUES";
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break;
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case State::BELOW_MIN_PARKING_TIME:
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s = "BELOW_MIN_PARKING_TIME";
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break;
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case State::BELOW_MIN_PARKING_PRICE:
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s = "BELOW_MIN_PARKING_PRICE";
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break;
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case State::OVERPAID:
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s = "OVERPAID";
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break;
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}
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return s + ":" + m_desc;
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}
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CalcState &set(State s) { m_status = s; return *this; }
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CalcState &setDesc(QString s) { m_desc = s; return *this; }
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};
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CalcState CALCULATE_LIBRARY_API init_tariff(parking_tariff_t **tariff,
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char const *config_file);
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void CALCULATE_LIBRARY_API free_tariff(parking_tariff_t *tariff);
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int CALCULATE_LIBRARY_API get_zone_nr();
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CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(parking_tariff_t *tariff,
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time_t start_parking_time,
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time_t end_parking_time,
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struct price_t *price);
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#endif // CALCULATE_PRICE_H
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