Start reimplementation of

private_GetCostFromDuration() in terms of ticket.

library/include/mobilisis/atb_project.h

@@ -0,0 +1,13 @@
+#ifndef ATB_PROJECT_H_INCLUDED
+#define ATB_PROJECT_H_INCLUDED
+
+#include <QString>
+
+class ATBProject {
+  public:
+    QString project;
+    QString version;
+    QString info;
+};
+
+#endif // ATB_PROJECT_H_INCLUDED

library/include/mobilisis/calculator_functions.h

@@ -1,12 +1,21 @@
-#pragma once
+#ifndef CALCULATOR_FUNCTIONS_H_INCLUDED
+#define CALCULATOR_FUNCTIONS_H_INCLUDED
+
 #include <iostream>
+#include <optional>
+
 #include "configuration.h"
+#include "payment_method.h"
+#include "ticket.h"
+#include "tariff_time_range.h"
+
 #include <QDateTime>
 using namespace std;
 
 class Calculator
 {
 public:
+
 	/// <summary>
 	/// Gets duration in seconds from cost
 	/// </summary>
@@ -26,8 +35,49 @@ public:
     /// <param name="end_datetime">Date/time of park end to be conducted in ISO8601 format (e.g. 2022-12-25T08:00:00Z) </param>
 	/// <param name="durationMin">Duration of parking in minutes</param>
 	/// <returns>Returns cost (data type: double)</returns>
-    double GetCostFromDuration(Configuration* cfg, uint8_t vehicle_type, const QDateTime start_datetime, QDateTime & end_datetime, double durationMin, bool nextDay = false, bool prepaid = false);
+    double GetCostFromDuration(Configuration* cfg, uint8_t vehicle_type, const QDateTime start_datetime, QDateTime & end_datetime, int durationMin, bool nextDay = false, bool prepaid = false);
 
     // Daily ticket
     QDateTime GetDailyTicketDuration(Configuration* cfg, const QDateTime start_datetime, uint8_t payment_option, bool carry_over);
+
+    //
+    // helper function to find time steps for a tariff with PaymentMethod::Steps
+    // (e.g. Schoenau/Koenigsee)
+    //
+    QList<int> GetTimeSteps(Configuration *cfg) const;
+
+private:
+    // Introduced for PaymentMethod::Steps (e.g. Schoenau)
+    // For tariff of following structure: only steps, no special days, nonstop.
+    uint32_t GetCostFromDuration(Configuration *cfg, QDateTime const &start, quint64 durationMinutes) const;
+    uint32_t GetCostFromDuration(Configuration *cfg, QDateTime const &start, QDateTime const &end) const;
+
+    PaymentMethod getPaymentMethodId(Configuration const *cfg);
+    int getMinimalParkingTime(Configuration const *cfg, PaymentMethod methodId);
+    int getMaximalParkingTime(Configuration const *cfg, PaymentMethod methodId);
+
+    Ticket private_GetCostFromDuration(Configuration const* cfg,
+                                       QDateTime const &start,
+                                       QDateTime &end,
+                                       int &durationMinutes,
+                                       bool nextDay = false,
+                                       bool prepaid = false,
+                                       bool overtime = false);
+
+    bool checkDurationMinutes(bool overTime,
+                              int minParkingTime, int maxParkingTime,
+                              int durationMinutes);
+
+    //
+    uint32_t GetPriceForTimeStep(Configuration *cfg, int timeStep) const;
+    uint32_t GetDurationForPrice(Configuration *cfg, int price) const;
+
+    int findWorkTimeRange(QDateTime const &dt,
+                          QScopedArrayPointer<TariffTimeRange> const &worktime,
+                          size_t size);
+    int findNextWorkTimeRange(QDateTime const &dt,
+                              QScopedArrayPointer<TariffTimeRange> const &worktime,
+                              size_t size);
 };
+
+#endif // CALCULATOR_FUNCTIONS_H_INCLUDED

library/include/mobilisis/configuration.h

@@ -20,6 +20,7 @@
 #include "member_type.h"
 #include "period_year.h"
 #include "payment_rate.h"
+#include "atb_project.h"
 
 using namespace std;
 using namespace rapidjson;
@@ -27,7 +28,7 @@ using namespace rapidjson;
 class Configuration
 {
 public:
-
+    ATBProject project;
     ATBCurrency Currency;
 	ATBDuration duration;
 
@@ -48,6 +49,8 @@ public:
 	/// <returns>Returns operation status bool (OK | FAIL) </returns>
 	bool ParseJson(Configuration* cfg, const char* json);
 
+    ATBPaymentOption const & getPaymentOptions();
+
 private:
 	/// <summary>
 	/// Identify type of JSON member
@@ -55,4 +58,6 @@ private:
 	/// <param name="member_name"></param>
 	/// <returns></returns>
 	MemberType IdentifyJsonMember(const char* member_name);
+
+    ATBPaymentOption currentPaymentOptions;
 };

library/include/mobilisis/payment_method.h

@@ -1,10 +1,12 @@
-#pragma once
+#ifndef PAYMENT_METHOD_H_INCLUDED
+#define PAYMENT_METHOD_H_INCLUDED
 
-enum PaymentMethod
-{
+enum PaymentMethod {
 	Undefined = 0xFF,
 	Progressive = 0x01,
 	Degressive = 0x02,
 	Linear = 0x03,
 	Steps = 0x04
 };
+
+#endif // PAYMENT_METHOD_H_INCLUDED

library/include/mobilisis/tariff_time_range.h

@@ -1,17 +1,28 @@
-// #pragma once
 #ifndef TARIFF_TIME_RANGE_H_INCLUDED
 #define TARIFF_TIME_RANGE_H_INCLUDED
 
-#include <ctime>
+#include <QTime>
 
 /// <summary>
 /// Time range definition
 /// </summary>
 class TariffTimeRange {
+    QTime m_time_from;
+    QTime m_time_until;
+
 public:
-	time_t time_from;
-    time_t time_to;
-    TariffTimeRange() : time_from(0), time_to(0) {}
+
+    TariffTimeRange()
+    : m_time_from(QTime())
+    , m_time_until(QTime()) {}
+
+    void setTimeRange(QTime const& from, QTime const &until) {
+        m_time_from = from;
+        m_time_until = until;
+    }
+
+    QTime const &getTimeFrom() const { return m_time_from; }
+    QTime const &getTimeUntil() const { return m_time_until; }
 };
 
 #endif // TARIFF_TIME_RANGE_H_INCLUDED

library/include/mobilisis/ticket.h

@@ -0,0 +1,64 @@
+#ifndef TICKET_H_INCLUDED
+#define TICKET_H_INCLUDED
+
+#include <tuple>
+#include <vector>
+
+#include <QDebug>
+#include <QDebugStateSaver>
+#include <QStringList>
+#include <QDateTime>
+
+#define NOT_INITIALIZED         (0)
+#define VALID                   (1)
+#define INVALID_FROM_DATETIME   (2)
+#define INVALID_UNTIL_DATETIME  (3)
+#define STATUS_END              (4)
+
+class Ticket {
+    enum {CODE=0, CODE_STR=1, CODE_DESC=3};
+public:
+    using Status = std::tuple<int, char const*, char const*>;
+
+    explicit Ticket();
+    explicit Ticket(QDateTime const &s, QDateTime const &e,
+                    int durationMinutesNetto, int durationMinutesBrutto,
+                    uint32_t price, Status status);
+
+    explicit operator bool() { return std::get<CODE>(m_status) == VALID; }
+    operator QString();
+
+    Status getStatus() const;
+    QDateTime getValidFrom() const;
+    QDateTime getValidUntil() const;
+    uint32_t getPrice() const;
+
+    Status setStatus(Status status);
+    void setValidFrom(QDateTime const &validFrom);
+    void setValidUntil(QDateTime const &validUnil);
+    void setPrice(uint32_t price);
+
+    bool isValid() { return operator bool(); }
+
+    static constexpr const Status s[STATUS_END] = {
+        {NOT_INITIALIZED       , "NOT_INITIALIZED"       , "Ticket not initialized"           },
+        {VALID                 , "VALID"                 , "Ticket is valid"                  },
+        {INVALID_FROM_DATETIME , "INVALID_FROM_DATETIME" , "Ticket has invalid start datetime"},
+        {INVALID_UNTIL_DATETIME, "INVALID_UNTIL_DATETIME", "Ticket has invalid end datetime"  }
+    };
+
+private:
+    Status m_status;
+
+    QDateTime m_validFrom;
+    QDateTime m_validUntil;
+    
+    int m_durationMinutesNetto;
+    int m_durationMinutesBrutto;
+
+    uint32_t m_price;
+};
+    
+QDebug operator<<(QDebug debug, Ticket::Status const &status);
+
+#endif // TICKET_H_INCLUDED

library/include/mobilisis/utilities.h

@@ -8,47 +8,48 @@
 #include "day_of_week.h"
 #include "configuration.h"
 #include "time_range.h"
+#include "payment_method.h"
+
+#include <QDateTime>
 
 using namespace std;
 
-class Utilities {
-public:
-
+namespace Utilities {
 	/// <summary>
 	/// Get day of week from current date (Zeller's Algorithm), starting day is Sunday
 	/// </summary>
 	/// <param name="date"></param>
 	/// <returns></returns>
-	static DayOfWeek GetDayOfWeek(struct tm* tm);
+	DayOfWeek GetDayOfWeek(struct tm* tm);
 
 	/// <summary>
 	/// Date and time parse helper function
 	/// </summary>
 	/// <returns>Returns time (tm) structure</returns>
-	static struct tm DateTimeToStructTm(const char* dateTimeStr);
+	struct tm DateTimeToStructTm(const char* dateTimeStr);
 
 	/// <summary>
 	/// Date parse helper function
 	/// </summary>
 	/// <returns>Returns time (tm) structure</returns>
-	static struct tm DateToStructTm(const char* dateStr);
+	struct tm DateToStructTm(const char* dateStr);
 
 	/// <summary>
 	/// Time parse helper function
 	/// </summary>
 	/// <returns>Returns time (tm) structure</returns>
-	static struct tm TimeToStructTm(const char* timeStr, int year, int mon, int mday, int wday);
+	struct tm TimeToStructTm(const char* timeStr, int year, int mon, int mday, int wday);
 
 	/// <summary>
 	/// Get current local time
 	/// </summary>
 	/// <returns>Returns time_t structure</returns>
-	static time_t GetCurrentLocalTime();
+	time_t GetCurrentLocalTime();
 
 	/// <summary>
 	/// Zeller's algorithm for determining day of week
 	/// </summary>
-	static int ZellersAlgorithm(int day, int month, int year);
+	int ZellersAlgorithm(int day, int month, int year);
 
 	/// <summary>
 	///  Checks if current datetime is in range between start and end month of parking worktime
@@ -56,18 +57,29 @@ public:
 	/// <param name="tariff_cfg"></param>
 	/// <param name="currentDateTime"></param>
 	/// <returns></returns>
-	static bool IsYearPeriodActive(Configuration* cfg, struct tm* currentDateTime);
+	bool IsYearPeriodActive(Configuration* cfg, struct tm* currentDateTime);
+    bool IsYearPeriodActive(Configuration const *cfg, QDateTime const &currentDateTime);
 
 	/// <summary>
 	/// Check permissions
 	/// </summary>
-	static bool CheckSpecialDay(Configuration* cfg, const char* currentDateTimeStr, int* specialDayId, double* specialDayPrice);
+	bool CheckSpecialDay(Configuration* cfg, const char* currentDateTimeStr, int* specialDayId, double* specialDayPrice);
+	bool CheckSpecialDay(Configuration const *cfg,
+						 QDateTime const &currentDateTimeS,
+						 int* specialDayId, uint32_t *specialDayPrice);
 
 	/// <summary>
 	/// Calculates price per unit
 	/// </summary>
 	/// <param name="pra_price"></param>
 	/// <returns></returns>
-    static double CalculatePricePerUnit(double pra_price, double durationUnit = -1);
+	double CalculatePricePerUnit(double pra_price, double durationUnit = -1);
 
-};
+    QTime SpecialDaysWorkTimeFrom(Configuration const *cfg, int specialDayId);
+    QTime SpecialDaysWorkTimeUntil(Configuration const *cfg, int specialDayId);
+    QTime WeekDaysWorkTimeFrom(std::multimap<int, ATBWeekDaysWorktime>::const_iterator itr);
+    QTime WeekDaysWorkTimeUntil(std::multimap<int, ATBWeekDaysWorktime>::const_iterator itr);
+    bool isCarryOverSet(Configuration const *cfg, PaymentMethod paymentMethodId);
+    bool isCarryOverNotSet(Configuration const *cfg, PaymentMethod paymentMethodId);
+    PaymentMethod getPaymentMethodId(Configuration const *cfg);
+}

library/library.pro

@@ -25,7 +25,8 @@ SOURCES += \
     src/utilities.cpp \
     src/configuration.cpp \
     src/tariff_log.cpp \
-    src/calculate_price.cpp
+    src/calculate_price.cpp \
+    src/ticket.cpp
 
 HEADERS += \
 	include/mobilisis/calculator_functions.h \
@@ -65,7 +66,9 @@ HEADERS += \
     include/mobilisis/tariff_period_year.h \
     include/mobilisis/tariff_payment_rate.h \
     include/mobilisis/tariff_log.h \
-    include/mobilisis/calculate_price.h
+    include/mobilisis/calculate_price.h \
+    include/mobilisis/atb_project.h \
+    include/mobilisis/ticket.h
 
 OTHER_FILES += src/main.cpp
 

library/src/calculate_price.cpp

@@ -100,8 +100,8 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
         time_t end_parking_time,   // netto time in minutes
         struct price_t *price) {
     CalcState calcState;
-    double minMin = tariff->PaymentOption.find(PaymentOption::Option1)->second.pop_min_time;
-    double maxMin = tariff->PaymentOption.find(PaymentOption::Option1)->second.pop_max_time;
+    double minMin = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_min_time;
+    double maxMin = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_max_time;
 
     if (minMin < 0 || maxMin < 0 || maxMin < minMin) {
         calcState.setDesc(QString("minMin=%1, maxMin=%2").arg(minMin).arg(maxMin));
@@ -134,11 +134,12 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
     QDateTime end(start);
     if (start.isValid()) {
         double cost = calculator.GetCostFromDuration(
-                    tariff, PaymentOption::Option1,
+                    tariff,
+                    tariff->getPaymentOptions().pop_payment_method_id,
                     start,
                     end,
                     duration, false, true);
-        double minCost = tariff->PaymentOption.find(PaymentOption::Option1)->second.pop_min_price;
+        double minCost = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_min_price;
         if (cost < minCost) {
             calcState.setDesc(QString("minCost=%1, cost=%2").arg(minCost).arg(cost));
             return calcState.set(CalcState::State::BELOW_MIN_PARKING_PRICE);
@@ -160,8 +161,8 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
         struct price_t *price)
 {
     CalcState calcState;
-    double minMin = tariff->PaymentOption.find(PaymentOption::Option1)->second.pop_min_time;
-    double maxMin = tariff->PaymentOption.find(PaymentOption::Option1)->second.pop_max_time;
+    double minMin = tariff->getPaymentOptions().pop_min_time;
+    double maxMin = tariff->getPaymentOptions().pop_max_time;
 
     // DEBUG
     qCritical() << "compute_price_for_parking_ticket() " << endl
@@ -192,12 +193,13 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
 
     if (start_parking_time.isValid()) {
         double cost = calculator.GetCostFromDuration(
-                        tariff, PaymentOption::Option1,
+                        tariff,
+                        tariff->getPaymentOptions().pop_payment_method_id,
                         start_parking_time,         // starting time
                         end_parking_time,           // return value: end time
                         netto_parking_time,         // minutes, netto
                         false, true);
-        double minCost = tariff->PaymentOption.find(PaymentOption::Option1)->second.pop_min_price;
+        double minCost = tariff->getPaymentOptions().pop_min_price;
         if (cost < minCost) {
             calcState.setDesc(QString("minCost=%1, cost=%2").arg(minCost, cost));
             return calcState.set(CalcState::State::BELOW_MIN_PARKING_PRICE);
@@ -233,7 +235,8 @@ CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
         qCritical() << "      start (cs): " << cs;
         qCritical() << "           price: " << price;
 
-        duration = calculator.GetDurationFromCost(tariff, PaymentOption::Option1,
+        duration = calculator.GetDurationFromCost(tariff,
+                                                  tariff->getPaymentOptions().pop_payment_method_id,
                                                   cs.toLocal8Bit().constData(),
                                                   price, false, true).c_str();
         QDateTime d = QDateTime::fromString(duration, Qt::ISODate);
@@ -258,7 +261,8 @@ CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
     if (start_parking_time.isValid()) {
         QString cs = start_parking_time.toString(Qt::ISODate);
         QString endTime = calculator.GetDurationFromCost(
-                    tariff, PaymentOption::Option1,
+                    tariff,
+                    tariff->getPaymentOptions().pop_payment_method_id,
                     cs.toLocal8Bit().constData(),
                     price, false, true).c_str();
         ticketEndTime = QDateTime::fromString(endTime,Qt::ISODate);
@@ -286,7 +290,7 @@ CalcState CALCULATE_LIBRARY_API compute_duration_for_daily_ticket(parking_tariff
 
         ticketEndTime = calculator.GetDailyTicketDuration(tariff,
                                                             start_parking_time,
-                                                            PaymentOption::Option1,
+                                                            tariff->getPaymentOptions().pop_payment_method_id,
                                                             false);    // carry over
 
         // DEBUG

library/src/calculator_functions.cpp

@@ -1,11 +1,15 @@
 #include "calculator_functions.h"
-#include "payment_method.h"
+#include "payment_option.h"
 #include "utilities.h"
 #include "tariff_log.h"
+#include "tariff_time_range.h"
+#include "ticket.h"
 
 #include <sstream>
+#include <algorithm>
 #include <QDateTime>
-#include <qdebug.h>
+#include <QScopedArrayPointer>
+#include <QDebug>
 
 double total_duration_min = 0.0f;
 double total_cost = 0.0f;
@@ -118,22 +122,35 @@ std::string Calculator::GetDurationFromCost(Configuration* cfg,
                                             bool nextDay,
                                             bool prepaid)
 {
+
     // Get input date
     QDateTime inputDate = QDateTime::fromString(start_datetime,Qt::ISODate);
 
+    // use tariff with structure as for instance Schnau, Koenigsee:
+    // without given YearPeriod, SpecialDays and SpecialDaysWorktime
+    if (cfg->YearPeriod.size() == 0
+        && cfg->SpecialDays.size() == 0
+        && cfg->SpecialDaysWorktime.size() == 0)
+    {
+        inputDate = inputDate.addSecs(GetDurationForPrice(cfg, price) * 60);
+
+        return inputDate.toString(Qt::ISODate).toStdString();
+    }
+
+
     // Get day of week
     int weekdayId = 0;
     weekdayId = Utilities::ZellersAlgorithm(inputDate.date().day(),inputDate.date().month(),inputDate.date().year());
 
     //Get min and max time defined in JSON
     double minMin = 0;
-    minMin = cfg->PaymentOption.find(payment_option)->second.pop_min_time;
+    minMin = cfg->getPaymentOptions().pop_min_time;
 
     double maxMin = 0;
-    maxMin = cfg->PaymentOption.find(payment_option)->second.pop_max_time;
+    maxMin = cfg->getPaymentOptions().pop_max_time;
 
     double min_price = 0;
-    min_price = cfg->PaymentOption.find(payment_option)->second.pop_min_price;
+    min_price = cfg->getPaymentOptions().pop_min_price;
 
     if(price < min_price)
     {
@@ -339,205 +356,407 @@ std::string Calculator::GetDurationFromCost(Configuration* cfg,
 ///////////////////////////////////////
 
 /// <inheritdoc/>
-double Calculator::GetCostFromDuration(Configuration* cfg, uint8_t payment_option, const QDateTime start_datetime, QDateTime & end_datetime,  double durationMin, bool nextDay, bool prepaid)
-{
-    // Get input date
-    QDateTime inputDate = start_datetime;
+///
 
-    // Get day of week
-    int weekdayId = 0;
-    weekdayId = Utilities::ZellersAlgorithm(inputDate.date().day(),inputDate.date().month(),inputDate.date().year());
-
-    //Get min and max time defined in JSON
-    double minMin = 0;
-    minMin = cfg->PaymentOption.find(payment_option)->second.pop_min_time;
-
-    double maxMin = 0;
-    maxMin = cfg->PaymentOption.find(payment_option)->second.pop_max_time;
-
-    if (minMin < 0) minMin = 0;
-    if (maxMin < 0) maxMin = 0;
-    if (minMin >= maxMin)
-    {
-        LOG_ERROR("Error: min_min cannot be greater or equal to max_min");
-        return 0.0f;
+uint32_t Calculator::GetCostFromDuration(Configuration *cfg,
+                                         QDateTime const &start,
+                                         quint64 timeStepInMinutes) const {
+    // for instance, a tariff as used in Schoenau, Koenigssee: only steps, no
+    // special days, nonstop.
+    if (cfg->YearPeriod.size() == 0
+     && cfg->SpecialDays.size() == 0
+     && cfg->SpecialDaysWorktime.size() == 0) {
+        QDateTime const end = start.addSecs(timeStepInMinutes*60);
+        return GetCostFromDuration(cfg, start, end);
     }
-    if (maxMin <= minMin)
-    {
-        LOG_ERROR("Error: max_min cannot be lower or equal than min_min");
-        return 0.0f;
+    return 0;
 }
 
-    // Check overtime
-    if (!overtime)
-    {
-        if (durationMin > maxMin)
-        {
-            LOG_WARNING("Total duration is greater or equal to max_min");
-            return maxMin;
+uint32_t Calculator::GetCostFromDuration(Configuration * cfg,
+                                         QDateTime const &start,
+                                         QDateTime const &end) const {
+    if (cfg->YearPeriod.size() == 0
+     && cfg->SpecialDays.size() == 0
+     && cfg->SpecialDaysWorktime.size() == 0) {
+        int const timeStepInMinutes = start.secsTo(end) / 60;
+        return GetPriceForTimeStep(cfg, timeStepInMinutes);
+    }
+    return 0;
 }
 
-        if (durationMin < minMin)
+
+
+
+///////////////////////////////////////
+
+/// <inheritdoc/>
+double Calculator::GetCostFromDuration(Configuration* cfg,
+                                       uint8_t payment_option,
+                                       const QDateTime start_datetime,
+                                       QDateTime &end_datetime,
+                                       int durationMinutes,
+                                       bool nextDay,
+                                       bool prepaid) {
+    if (cfg->YearPeriod.size() == 0
+        && cfg->SpecialDays.size() == 0
+        && cfg->SpecialDaysWorktime.size() == 0)
     {
-            LOG_WARNING("Total duration is lower or equal to min_min");
-            return 0.0f;
-        }
+        end_datetime = start_datetime.addSecs(durationMinutes*60);
+        return GetCostFromDuration(cfg, start_datetime, end_datetime);
     }
 
-    // Get payment method
-    uint8_t p_method = PaymentMethod::Undefined;
-    p_method = payment_option;
-    LOG_DEBUG("Payment method id: ", (unsigned)p_method);
+    QDateTime start = start_datetime;
+
+    Ticket t = private_GetCostFromDuration(cfg, start,
+                                           end_datetime, durationMinutes,
+                                           nextDay, prepaid);
+    if (t) {
+        qCritical().noquote() << t;
+
+        return t.getPrice();
+    }
+
+    return -1;
+}
+
+int Calculator::getMinimalParkingTime(Configuration const *cfg, PaymentMethod methodId) {
+    return std::max((int)cfg->PaymentOption.find(methodId)->second.pop_min_time, 0);
+}
+
+int Calculator::getMaximalParkingTime(Configuration const *cfg, PaymentMethod methodId) {
+    return std::max((int)cfg->PaymentOption.find(methodId)->second.pop_max_time, 0);
+}
+
+bool Calculator::checkDurationMinutes(bool overtime,
+                                      int minParkingTime,
+                                      int maxParkingTime,
+                                      int durationMinutes) {
+    if (!overtime) {
+        if (durationMinutes > maxParkingTime) {
+            qWarning() << QString("Total duration >= max_min (%1 >= %2)").arg(durationMinutes).arg(maxParkingTime);
+            return false;
+        }
+        if (durationMinutes < minParkingTime) {
+            qWarning() << QString("Total duration <= minMin (%1 <= %2)").arg(durationMinutes).arg(minParkingTime);
+            return false;
+        }
+    }
+    return true;
+}
+
+int Calculator::findWorkTimeRange(QDateTime const &dt,
+                                  QScopedArrayPointer<TariffTimeRange> const &worktime,
+                                  size_t size) {
+    for (size_t w = 0; w < size; ++w) {
+        QTime const &worktime_from = worktime[w].getTimeFrom();
+        QTime const &worktime_to = worktime[w].getTimeUntil();
+
+        if ((dt.time() >= worktime_from) && (dt.time() < worktime_to)) {
+            return w;
+        }
+    }
+    return -1;
+}
+
+int Calculator::findNextWorkTimeRange(QDateTime const &dt,
+                                         QScopedArrayPointer<TariffTimeRange> const &worktime,
+                                         size_t size) {
+    int nextWorkTimeRange = -1;
+    for (size_t w = 0; w < size; ++w) {
+        QTime const &worktime_from = worktime[w].getTimeFrom();
+
+        if (dt.time() < worktime_from) {
+            nextWorkTimeRange = w;
+            continue;
+        }
+    }
+    return nextWorkTimeRange;
+}
+
+using namespace Utilities;
+
+Ticket Calculator::private_GetCostFromDuration(Configuration const* cfg,
+                                               QDateTime const &start,
+                                               QDateTime &end,
+                                               int &durationMinutes,
+                                               bool nextDay,
+                                               bool prepaid,
+                                               bool overtime) {
+
+    static const PaymentMethod paymentMethodId = Utilities::getPaymentMethodId(cfg);
+    static const bool carryOverNotSet = isCarryOverNotSet(cfg, paymentMethodId);
+    static int const minParkingTimeMinutes = getMinimalParkingTime(cfg, paymentMethodId);
+    static int const maxParkingTimeMinutes = getMaximalParkingTime(cfg, paymentMethodId);
+
+    static bool const checkMinMaxMinutes = (minParkingTimeMinutes < maxParkingTimeMinutes);
+
+    static const int durationMinutesNetto = durationMinutes;
+
+    if (!checkMinMaxMinutes) {
+        qCritical() << QString(
+            "ERROR: CONDITION minMin < maxMin (%1 < %2) IS NOT VALID")
+                .arg(minParkingTimeMinutes).arg(maxParkingTimeMinutes);
+        return Ticket();
+    }
+
+    if (!checkDurationMinutes(overtime, minParkingTimeMinutes,
+                              maxParkingTimeMinutes, durationMinutes)) {
+        return Ticket();
+    }
+
+    QDateTime inputDate = start;
+
+    int const weekdayId = inputDate.date().dayOfWeek();
+
+    uint32_t price = 0;
+    double durationUnit = 60.0;
 
-    // Check special day
-    double day_price = 0.0f;
     int current_special_day_id = -1;
-    bool is_special_day = Utilities::CheckSpecialDay(cfg, inputDate.toString(Qt::ISODate).toStdString().c_str(), &current_special_day_id, &day_price);
-    LOG_DEBUG("Special day: ", is_special_day);
 
-    total_duration_min = durationMin;
-    LOG_DEBUG("Total min:", total_duration_min);
+    // there might be more than 1 worktime ranges per day
+    int const timeRanges = std::max((int)cfg->WeekDaysWorktime.count(weekdayId), 1);
+    QScopedArrayPointer<TariffTimeRange> worktime(new TariffTimeRange[timeRanges]);
+    int ranges = 0;
 
-    double price_per_unit = 0.0f;
-    QTime worktime_from;
-    QTime worktime_to;
-
-    if(is_special_day)
-    {
-        // Set special day price
-        price_per_unit = Utilities::CalculatePricePerUnit(day_price);
-        worktime_from = QTime::fromString(cfg->SpecialDaysWorktime.find(current_special_day_id)->second.pedwt_time_from.c_str());
-        worktime_to = QTime::fromString(cfg->SpecialDaysWorktime.find(current_special_day_id)->second.pedwt_time_to.c_str());
-    }
-    else
-    {
-        // Set new price for the normal day
-
-        int pop_id = cfg->PaymentOption.find(payment_option)->second.pop_id;
-        day_price = cfg->PaymentRate.find(pop_id)->second.pra_price;
+    if(Utilities::CheckSpecialDay(cfg, inputDate, &current_special_day_id, &price)) {
+        // Set special day price:
+        durationUnit = 60.0;
+        worktime[ranges].setTimeRange(SpecialDaysWorkTimeFrom(cfg, current_special_day_id),
+                                      SpecialDaysWorkTimeUntil(cfg, current_special_day_id));
+        ranges = 1;
+    } else {
+        // Set new price for the normal day: do not use a floating-point type
+        // for the price, rather compute with integers. Only at the very end of
+        // the computation the price is divided by durationUnit.
+        int pop_id = cfg->PaymentOption.find(paymentMethodId)->second.pop_id;
+        price = cfg->PaymentRate.find(pop_id)->second.pra_price;
 
         int durationId = cfg->PaymentRate.find(pop_id)->second.pra_payment_unit_id;
-        double durationUnit = cfg->Duration.find(durationId)->second.pun_duration;
-        price_per_unit = Utilities::CalculatePricePerUnit(day_price,durationUnit);
+        durationUnit = cfg->Duration.find(durationId)->second.pun_duration;
 
         // If no working day found, skip it (recursively call method again)
-        size_t found = 0;
-        found = cfg->WeekDaysWorktime.count(weekdayId);
-
+        if (cfg->WeekDaysWorktime.count(weekdayId) <= 0) {
             // When no workday found, go to next available day
-        if(found <=0)
-        {
-            LOG_DEBUG("- No workday found, trying to find next available day");
+            qDebug() << "No workday found, trying to find next available day";
             inputDate = inputDate.addDays(1);
-            return floor(GetCostFromDuration(cfg, payment_option, inputDate, end_datetime, durationMin, true, prepaid));
-        }
-        worktime_from = QTime::fromString(cfg->WeekDaysWorktime.find(weekdayId)->second.pwd_time_from.c_str());
-        worktime_to = QTime::fromString(cfg->WeekDaysWorktime.find(weekdayId)->second.pwd_time_to.c_str());
+            return private_GetCostFromDuration(cfg, inputDate, end, durationMinutes, true, prepaid, overtime);
         }
 
-    if (price_per_unit < 0) price_per_unit = 1.0f;
-    LOG_DEBUG("Calculated price per minute: ", price_per_unit);
+        using WTIterator = std::multimap<int, ATBWeekDaysWorktime>::const_iterator;
+        std::pair<WTIterator, WTIterator> p = cfg->WeekDaysWorktime.equal_range(weekdayId);
 
-    if (price_per_unit == 0)
-    {
+        for (WTIterator itr = p.first; itr != p.second; ++itr) {
+            worktime[ranges].setTimeRange(WeekDaysWorkTimeFrom(itr),
+                                          WeekDaysWorkTimeUntil(itr));
+            ranges += 1;
+        }
+    }
+
+    uint32_t costFromDuration = 0;
+    QTime const &lastWorktimeTo = worktime[ranges-1].getTimeUntil();
+    int currentRange = -1;
+
+    if (nextDay) { // this means the function has been called recursively
+        currentRange = 0;
+        inputDate.setTime(worktime[currentRange].getTimeFrom());
+    } else {
+        // check if inputDate is located inside a valid worktime-range...
+        currentRange = findWorkTimeRange(inputDate, worktime, ranges);
+        if (currentRange == -1) { // no...
+            if (!prepaid) {       // parking is not allowed
+                return Ticket(start, end, durationMinutesNetto, 0,
+                              0, Ticket::s[INVALID_FROM_DATETIME]);
+            }
+            // find the next worktime-range (on the same day), and start from there
+            currentRange = findNextWorkTimeRange(inputDate, worktime, ranges);
+            inputDate.setTime(worktime[currentRange].getTimeFrom());
+        }
+    }
+
+    for (int w = currentRange; w < ranges; ++w) {
+        if (durationMinutes > 0) {
+            QTime const &worktime_from = worktime[w].getTimeFrom();
+            QTime const &worktime_to = worktime[w].getTimeUntil();
+
+            qCritical() << "from" << worktime_from;
+            qCritical() << "until" << worktime_to;
+
+            //if (w > 0) { // durationMinutes are always meant as netto time and
+            //             // the time between worktime-ranges are free.
+            //    inputDate.setTime(worktime_from);
+            //}
+
+            // TODO: hier muss dann der preis hin
+            if (price == 0) {
                 inputDate = inputDate.addDays(1);
                 inputDate.setTime(worktime_from);
-        return GetCostFromDuration(cfg, payment_option, inputDate, end_datetime, durationMin, true, prepaid);
+                Ticket t = private_GetCostFromDuration(
+                                                    cfg, // TODO: erklaerung
+                                                    inputDate,
+                                                    end, durationMinutes,
+                                                    true, prepaid);
+                if (!t.isValid()) {
+                    return t;
+                }
+                costFromDuration += t.getPrice();
+                continue;
             }
 
             // If overtime flag is set
-    if (overtime || nextDay)
-    {
-        inputDate.setTime(worktime_from);
-        overtime = false;
-    }
+            // TODO: ueberpruefen, kann man wohl nach oben ziehen
+            //if (overtime || nextDay) {
+            //    inputDate.setTime(worktime_from);
+            //    overtime = false;
+            //}
+
+            qCritical() << "inputDate.time()=" << inputDate.time();
 
             // Check prepaid
-    if (!prepaid)
-    {
-        if ((inputDate.time() < worktime_from) || (inputDate.time() > worktime_to))
-        {
-            LOG_DEBUG("[STOP] * Ticket is not valid * ");
-            return 0.0f;
+            if (!prepaid) {
+                if ((inputDate.time() < worktime_from) || (inputDate.time() > worktime_to)) {
+                    qDebug() << "[STOP] * Ticket is not valid * ";
+                    return Ticket();
                 }
-    }
-    else
-    {
-        LOG_DEBUG("* PREPAID MODE ACTIVE *");
-        if (inputDate.time() < worktime_from)
-        {
+            } else {
+                qDebug() << "* PREPAID MODE ACTIVE *";
+                if (inputDate.time() < worktime_from) {
                     inputDate.setTime(worktime_from);
-        }
-        else if(inputDate.time() > worktime_to)
-        {
-            LOG_DEBUG(" *** PREPAID *** Current time is past the time range end, searching for next available day");
+                //} else if(inputDate.time() > worktime_to) {
+                } else if(inputDate.time() > lastWorktimeTo) {
+                    qDebug() << " *** PREPAID *** Current time is past the time range end, searching for next available day";
+                    // wieso ist hier overtime nicht gesetzt
                     inputDate = inputDate.addDays(1);
-            return GetCostFromDuration(cfg, payment_option, inputDate, end_datetime, durationMin, true, prepaid);
+                    Ticket t = private_GetCostFromDuration(
+                                                cfg, inputDate, end,
+                                                durationMinutes, true, prepaid);
+                    if (!t.isValid()) {
+                        return t;
+                    }
+                    costFromDuration += t.getPrice();
+                    continue;
                 }
             }
 
-    while(true)
-    {
-        if(total_duration_min <= 0) break;
+            while(durationMinutes > 0) {
+                // Check for active year period
+                if (!IsYearPeriodActive(cfg, inputDate)) {
+                    return Ticket();
+                }
 
-        // Check year period
-        bool isYearPeriodActive = false;
+                qDebug() << "inputDate" << inputDate.toString(Qt::ISODate);
 
-        //// Parse input date
-        int dayCurrent = inputDate.date().day();
-        int monthCurrent = inputDate.date().month();
-
-        // Current date time
-        int cdt = (monthCurrent * 100) + dayCurrent;
-
-        multimap<int, ATBPeriodYear>::iterator year_period_itr;
-        for (year_period_itr = cfg->YearPeriod.begin(); year_period_itr != cfg->YearPeriod.end(); ++year_period_itr)
-        {
-            int dStart = year_period_itr->second.pye_start_day;
-            int dEnd = year_period_itr->second.pye_end_day;
-
-            int mStart = year_period_itr->second.pye_start_month;
-            int mEnd = year_period_itr->second.pye_end_month;
-
-            int start = (mStart * 100) + dStart;
-            int end = (mEnd * 100) + dEnd;
-
-            if (cdt >= start && cdt <= end) {
-                isYearPeriodActive = true;
+                if(inputDate.time() >= lastWorktimeTo) {
+                    // Go to next day if minutes not spent
+                    if (carryOverNotSet) {
+                        // no carry_over, so stop computation
                         break;
                     }
-        }
-        if (!isYearPeriodActive)
-        {
-            LOG_DEBUG("Year period is not valid");
-            return 0.0f;
-        }
 
-        int carry_over_status = 0;
-        carry_over_status = cfg->PaymentOption.find(payment_option)->second.pop_carry_over;
+                    qDebug() << "Reached end of worktime, searching for the next working day";
 
-        // Go to next day if minutes not spent
-        if(inputDate.time() >= worktime_to)
-        {
-            if (carry_over_status < 1) break;
-
-            LOG_DEBUG("Reached end of worktime, searching for the next working day");
                     inputDate = inputDate.addDays(1);
+                    inputDate.setTime(QTime());
                     overtime = true;
-            return GetCostFromDuration(cfg, payment_option, inputDate, end_datetime, total_duration_min);
+                    Ticket t = private_GetCostFromDuration(
+                                                cfg, inputDate, end,
+                                                durationMinutes, true, prepaid, overtime);
+                    if (!t.isValid()) {
+                        return t;
                     }
-
+                    costFromDuration += t.getPrice();
+                    break; // stop while, and continue in outer loop
+                } else {
+                    if(inputDate.time() < worktime_to) {
                         // Increment input date minutes for each monetary unit
                         inputDate = inputDate.addSecs(60);
-        total_duration_min -=1;
-        total_cost += price_per_unit;
 
+                        qDebug() << "inputDate" << inputDate.toString(Qt::ISODate);
+
+                        durationMinutes -= 1;
+                        //costFromDuration += price_per_unit;
+                        costFromDuration += price;
+                    } else break;
                 }
-    qDebug() << "GetCostFromDuration(): Valid until:" << inputDate.toString(Qt::ISODate).toStdString().c_str();
-
-    end_datetime = inputDate;
-
-    double ret_val = total_cost;
-    total_cost = 0.0f;
-    return ceil(ret_val);
+            }
+        }
+    }
+
+
+    if (inputDate >= end) {
+        end = inputDate;
+    }
+
+    if (nextDay == false) {
+        qDebug() << "GetCostFromDuration(): Valid until:" << end.toString(Qt::ISODate);
+    }
+
+    return
+        Ticket(start, end,
+               durationMinutesNetto,
+               start.secsTo(end) / 60,
+               nextDay ?
+                   costFromDuration :
+                   llround(Utilities::CalculatePricePerUnit(costFromDuration, durationUnit)),
+               Ticket::s[VALID]);
+}
+
+
+
+QList<int> Calculator::GetTimeSteps(Configuration *cfg) const {
+    QList<int> timeSteps;
+
+    int const pop_id = cfg->getPaymentOptions().pop_id;
+
+    for (auto[itr, rangeEnd] = cfg->PaymentRate.equal_range(pop_id); itr != rangeEnd; ++itr)
+    {
+        int const durationId = itr->second.pra_payment_unit_id;
+        int const durationUnit = cfg->Duration.find(durationId)->second.pun_duration;
+        timeSteps << durationUnit;
+    }
+
+    return timeSteps;
+}
+
+uint32_t Calculator::GetPriceForTimeStep(Configuration *cfg, int timeStep) const {
+
+    int const pop_id = cfg->getPaymentOptions().pop_id;
+
+    for (auto[itr, rangeEnd] = cfg->PaymentRate.equal_range(pop_id); itr != rangeEnd; ++itr)
+    {
+        int const payment_unit_id = itr->second.pra_payment_unit_id;
+        int const pun_id = cfg->Duration.find(payment_unit_id)->second.pun_id;
+
+        Q_ASSERT(pun_id == payment_unit_id);
+
+        int const pun_duration = cfg->Duration.find(payment_unit_id)->second.pun_duration;
+        if (timeStep == pun_duration) {
+            return (uint32_t)(itr->second.pra_price);
+        }
+    }
+
+    return 0;
+}
+
+uint32_t Calculator::GetDurationForPrice(Configuration *cfg, int price) const {
+    int const pop_id = cfg->getPaymentOptions().pop_id;
+
+    uint32_t duration = 0;
+
+    for (auto[itr, rangeEnd] = cfg->PaymentRate.equal_range(pop_id); itr != rangeEnd; ++itr)
+    {
+        int const durationId = itr->second.pra_payment_unit_id;
+        int const pra_price = itr->second.pra_price;
+
+        uint32_t const durationUnit = cfg->Duration.find(durationId)->second.pun_duration;
+
+        if (pra_price == price) {
+            return durationUnit;
+        }
+
+        if (pra_price < price) {
+            duration = durationUnit;
+        }
+    }
+
+    return duration;
 }

library/src/configuration.cpp

@@ -59,8 +59,9 @@ bool Configuration::ParseJson(Configuration* cfg, const char* json)
 			|| !document.HasMember("PaymentRate")
 			|| !document.HasMember("Duration")
 			//|| !document.HasMember("WeekDays")
-			|| !document.HasMember("SpecialDaysWorktime")
-			|| !document.HasMember("SpecialDays"))
+            //|| !document.HasMember("SpecialDaysWorktime")
+            //|| !document.HasMember("SpecialDays")
+            )
 		{
 			printf("%s", "Error: not a valid configuration JSON\n");
 			return false;
@@ -87,13 +88,26 @@ bool Configuration::ParseJson(Configuration* cfg, const char* json)
 			const char* mb_name = i->name.GetString();
             if (mb_name == NULL) continue;
 
-            // if (!document[mb_name].IsArray()) {
-                std::string const _mb_name(mb_name);
-                if (_mb_name == "version" || _mb_name == "project" ||
-                    _mb_name == "zone" || _mb_name == "info") {
+            if (document[mb_name].IsString()) {
+                QString const _mb_name(mb_name);
+                if (_mb_name.startsWith("Project", Qt::CaseInsensitive)) {
+                    cfg->project.project = document[mb_name].GetString();
+                    continue;
+                 }
+                if (_mb_name.startsWith("Version", Qt::CaseInsensitive)) {
+                    cfg->project.version = document[mb_name].GetString();
+                    continue;
+                }
+                if (_mb_name.startsWith("Info", Qt::CaseInsensitive)) {
+                    cfg->project.info = document[mb_name].GetString();
+                    continue;
+                }
+            }
+
+            // ... everything else should be an array
+            if (!document[mb_name].IsArray()) {
                 continue;
             }
-            // }
 
 			//printf(" -%s\n", mb_name);
 
@@ -155,6 +169,7 @@ bool Configuration::ParseJson(Configuration* cfg, const char* json)
 						else if (strcmp(inner_obj_name, "pop_min_price") == 0) PaymentOption.pop_min_price = k->value.GetDouble();
 						else if (strcmp(inner_obj_name, "pop_carry_over") == 0) PaymentOption.pop_carry_over = k->value.GetInt();
                         else if (strcmp(inner_obj_name, "pop_daily_card_price") == 0) PaymentOption.pop_daily_card_price = k->value.GetInt();
+                        this->currentPaymentOptions = PaymentOption;
                         break;
 					case MemberType::DurationType:
 						if (strcmp(inner_obj_name, "pun_id") == 0) Duration.pun_id = k->value.GetInt();
@@ -245,3 +260,10 @@ bool Configuration::ParseJson(Configuration* cfg, const char* json)
 		return false;
 	}
 }
+
+
+
+const ATBPaymentOption & Configuration::getPaymentOptions()
+{
+    return this->currentPaymentOptions;
+}

library/src/ticket.cpp

@@ -0,0 +1,88 @@
+#include "ticket.h"
+
+Ticket::Ticket() 
+  : m_status(Ticket::s[NOT_INITIALIZED])
+  , m_validFrom()
+  , m_validUntil()
+  , m_durationMinutesNetto(0)
+  , m_durationMinutesBrutto(0)
+  , m_price() {
+
+    qDebug() << *this;
+    qDebug() << m_status;
+}
+
+Ticket::Ticket(QDateTime const &s, QDateTime const &e,
+               int durationMinutesNetto, int durationMinutesBrutto,
+               uint32_t price, Ticket::Status status)
+  : m_status(status)
+  , m_validFrom(s)
+  , m_validUntil(e)
+  , m_durationMinutesNetto(durationMinutesNetto)
+  , m_durationMinutesBrutto(durationMinutesBrutto)
+  , m_price(price) {
+}
+
+
+Ticket::Status Ticket::setStatus(Status status) {
+    Status old = m_status;
+    m_status = status;
+    return old;
+}
+    
+Ticket::Status Ticket::getStatus() const {
+    return m_status;
+}
+    
+void Ticket::setValidFrom(QDateTime const &validFrom) {
+    m_validFrom = validFrom;
+}
+    
+void Ticket::setValidUntil(QDateTime const &validUntil) {
+    m_validUntil = validUntil;
+}
+
+QDateTime Ticket::getValidFrom() const {
+    if (std::get<CODE>(m_status) == VALID) {
+        return m_validFrom;
+    }
+    return QDateTime();
+}
+    
+QDateTime Ticket::getValidUntil() const {
+    if (std::get<CODE>(m_status) == VALID) {
+        return m_validFrom;
+    }
+    return QDateTime();
+}
+
+uint32_t Ticket::getPrice() const {
+    return m_price;
+}
+    
+void Ticket::setPrice(uint32_t price) {
+    m_price = price;
+}
+    
+Ticket::operator QString() {
+    QStringList status;
+    status << QString("**********************");
+    status << QString("Status ............. : %1 (%2)")
+                .arg(std::get<0>(m_status))
+                .arg(std::get<2>(m_status));
+    status << QString("Valid from ......... : %1").arg(m_validFrom.toString(Qt::ISODate));
+    status << QString("Valid until ........ : %1").arg(m_validUntil.toString(Qt::ISODate));
+    status << QString("Duration (netto) ... : %1").arg(m_durationMinutesNetto);
+    status << QString("Duration (brutto)... : %1").arg(m_durationMinutesBrutto);
+    status << QString("Price .............. : %1").arg(m_price);
+    status << QString("**********************");
+
+    return status.join('\n');
+}
+
+QDebug operator<<(QDebug debug, Ticket::Status const &status) {
+    QDebugStateSaver saver(debug);
+    debug << "Ticket-Status: " << std::get<1>(status)
+          << "(" << std::get<2>(status) << ")";
+    return debug;
+}

library/src/utilities.cpp

@@ -1,6 +1,9 @@
 #include "utilities.h"
 #include "tariff_log.h"
 
+#include <QDebug>
+#include <algorithm>
+
 static int protection_counter = 0;
 
 /// <summary>
@@ -193,6 +196,23 @@ bool Utilities::IsYearPeriodActive(Configuration* cfg, struct tm* currentDateTim
 	}
 }
 
+bool Utilities::IsYearPeriodActive(Configuration const *cfg, QDateTime const &dt) {
+    if (std::none_of(cfg->YearPeriod.cbegin(),
+                     cfg->YearPeriod.cend(),
+            [&dt](std::pair<int, ATBPeriodYear> const &year) {
+                QDate const d(2004, // 2004 is a leap year
+                              dt.date().month(),
+                              dt.date().day());
+                QDate const s(2004, year.second.pye_start_month, year.second.pye_start_day);
+                QDate const e(2004, year.second.pye_end_month, year.second.pye_end_day);
+                return (d >= s && d <= e);
+            })) {
+        qCritical() << "NO VALID YEAR PERIOD";
+        return false;
+    }
+    return true;
+}
+
 /// <inheritdoc/>
 bool Utilities::CheckSpecialDay(Configuration* cfg, const char* currentDateTimeStr, int* specialDayId, double* specialDayPrice)
 {
@@ -271,3 +291,85 @@ bool Utilities::CheckSpecialDay(Configuration* cfg, const char* currentDateTimeS
 		return false;
 	}
 }
+
+bool Utilities::CheckSpecialDay(Configuration const *cfg,
+                                QDateTime const &currentDateTime,
+                                int* specialDayId,
+                                uint32_t *specialDayPrice) {
+    *specialDayId = -1;
+    *specialDayPrice = 0;
+
+    std::multimap<int, ATBSpecialDays>::const_iterator spec_days_itr;
+
+    for (spec_days_itr = cfg->SpecialDays.cbegin(); spec_days_itr != cfg->SpecialDays.cend(); ++spec_days_itr) {
+        int repeat_every_year = spec_days_itr->second.ped_year;
+        QDate start = QDate::fromString(spec_days_itr->second.ped_date_start.c_str(), Qt::ISODate);
+        QDate end = QDate::fromString(spec_days_itr->second.ped_date_end.c_str(), Qt::ISODate);
+        if (start.isValid() && end.isValid()) {
+            if ((currentDateTime.date().month() >= start.month()) &&
+                (currentDateTime.date().month() <= end.month())) {
+                if ((currentDateTime.date().day() >= start.day()) &&
+                    (currentDateTime.date().day() <= end.day())) {
+                    if (repeat_every_year <= 0) {
+                        if ((currentDateTime.date().year() != start.year()) ||
+                            (currentDateTime.date().year() != end.year())) {
+                            continue;
+                        }
+                    }
+                    qDebug() << "CheckSpecialDay() => SPECIAL DAY";
+                    *specialDayId = spec_days_itr->second.ped_id;
+                    *specialDayPrice = cfg->SpecialDaysWorktime.find(*specialDayId)->second.pedwt_price;
+                    return true;
+                }
+            }
+        }
+    }
+
+    return false;
+}
+
+QTime Utilities::SpecialDaysWorkTimeFrom(Configuration const *cfg, int specialDayId) {
+    return QTime::fromString(cfg->SpecialDaysWorktime.find(specialDayId)->second.pedwt_time_from.c_str(), Qt::ISODate);
+}
+
+QTime Utilities::SpecialDaysWorkTimeUntil(Configuration const *cfg, int specialDayId) {
+    return QTime::fromString(cfg->SpecialDaysWorktime.find(specialDayId)->second.pedwt_time_to.c_str(), Qt::ISODate);
+}
+
+QTime Utilities::WeekDaysWorkTimeFrom(std::multimap<int, ATBWeekDaysWorktime>::const_iterator itr) {
+    return QTime::fromString(itr->second.pwd_time_from.c_str(), Qt::ISODate);
+}
+
+QTime Utilities::WeekDaysWorkTimeUntil(std::multimap<int, ATBWeekDaysWorktime>::const_iterator itr) {
+    return QTime::fromString(itr->second.pwd_time_to.c_str(), Qt::ISODate);
+}
+
+bool Utilities::isCarryOverSet(Configuration const *cfg, PaymentMethod paymentMethodId) {
+    return !isCarryOverNotSet(cfg, paymentMethodId);
+}
+
+bool Utilities::isCarryOverNotSet(Configuration const *cfg, PaymentMethod paymentMethodId) {
+    return (cfg->PaymentOption.find(paymentMethodId)->second.pop_carry_over < 1);
+}
+
+PaymentMethod Utilities::getPaymentMethodId(Configuration const *cfg) {
+    if (cfg->PaymentOption.size() != 1) {
+        return PaymentMethod::Undefined;
+    }
+
+    std::multimap<int, ATBPaymentOption>::const_iterator it =
+        cfg->PaymentOption.cbegin();
+
+    switch (it->first) {
+    case PaymentMethod::Linear:
+        return PaymentMethod::Linear;
+    case PaymentMethod::Steps:
+        return PaymentMethod::Steps;
+    case PaymentMethod::Degressive:
+        return PaymentMethod::Degressive;
+    case PaymentMethod::Progressive:
+        return PaymentMethod::Progressive;
+    }
+
+    return PaymentMethod::Undefined;
+}

main/main.cpp

@@ -36,7 +36,7 @@ extern "C" char* strptime(const char* s,
 
 int main() {
 
-    std::ifstream input(QDir::homePath().append("/tariff01.json").toStdString());
+    std::ifstream input("/tmp/tariff_korneuburg.json");
     std::stringstream sstr;
     while(input >> sstr.rdbuf());
     std::string json(sstr.str());
@@ -47,14 +47,15 @@ int main() {
     bool isParsed = cfg.ParseJson(&cfg, json.c_str());
     cout << endl;
 
-    char const *startDate = "";
 
     if (isParsed)
     {
-        startDate = "2023-05-10T13:52:18.665Z";
-        std::string duration = calculator.GetDurationFromCost(&cfg, 3, (char *)startDate, 33, false, true);
-        cout << "---> startDate " << startDate << " _price_ = " << 33
-             << " Total duration is: " << duration << endl;
+        QDateTime start = QDateTime::fromString("2023-11-27T17:50:00",Qt::ISODate);
+        //QDateTime start = QDateTime::currentDateTime();
+        QDateTime end = start.addSecs(120);
+        uint32_t cost = calculator.GetCostFromDuration(&cfg, 3, start, end, 60);
+        qCritical() << "cost=" << cost;
+        qCritical() << "end=" << end;
     }
 
     return 0;
@@ -69,6 +70,7 @@ int main() {
     if (init_tariff(&tariff, "/etc/psa_tariff/")) {      
         struct price_t price;
         memset(&price, 0x00, sizeof(price));
+
         QDateTime start = QDateTime::fromString("2023-05-11T07:50:00",Qt::ISODate); //QDateTime::currentDateTime();
         time_t start_parking_time = start.toSecsSinceEpoch() / 60;
         time_t end_parking_time = start_parking_time + 615;

test-files/tariff_korneuburg.json

@@ -0,0 +1,160 @@
+{
+  "Project" :   "Korneuburg",
+  "Version" :   "1.0.0",
+  "Info"    :   "",
+  "Currency": [
+    {
+      "pcu_id": 2,
+      "pcu_sign": "€",
+      "pcu_major": "EUR",
+      "pcu_minor": "",
+      "pcu_active": true
+    }
+  ],
+  "PaymentMethod": [
+    {
+      "pme_id": 1,
+      "pme_label": "progressive"
+    },
+    {
+      "pme_id": 2,
+      "pme_label": "degressive"
+    },
+    {
+      "pme_id": 3,
+      "pme_label": "linear"
+    },
+    {
+      "pme_id": 4,
+      "pme_label": "steps"
+    }
+  ],
+  "PaymentOption": [
+    {
+      "pop_id": 1049,
+      "pop_label": "Zone 1",
+      "pop_payment_method_id": 3,
+      "pop_day_end_time": "00:00:00",
+      "pop_day_night_end_time": "00:00:00",
+      "pop_price_night": 0,
+      "pop_min_time": 30,
+      "pop_max_time": 180,
+      "pop_min_price": 60,
+      "pop_carry_over": 0,
+      "pop_daily_card_price": 0
+    }
+  ],
+  "PaymentRate": [
+    {
+      "pra_payment_option_id": 1049,
+      "pra_payment_unit_id": 1,
+      "pra_price": 10
+    }
+  ],
+  "Duration": [
+    {
+      "pun_id": 1,
+      "pun_label": "5 min",
+      "pun_duration": 5 
+    },
+    {
+      "pun_id": 3,
+      "pun_label": "15 min",
+      "pun_duration": 15
+    },
+    {
+      "pun_id": 4,
+      "pun_label": "1 min",
+      "pun_duration": 1
+    }
+  ],
+  "WeekDaysWorktime": [
+    {
+      "pwd_id": 621,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 1,
+      "pwd_time_from": "08:00:00",
+      "pwd_time_to": "12:00:00"
+    },
+    {
+      "pwd_id": 621,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 1,
+      "pwd_time_from": "14:00:00",
+      "pwd_time_to": "18:00:00"
+    },
+    {
+      "pwd_id": 622,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 2,
+      "pwd_time_from": "08:00:00",
+      "pwd_time_to": "12:00:00"
+    },
+    {
+      "pwd_id": 622,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 2,
+      "pwd_time_from": "14:00:00",
+      "pwd_time_to": "18:00:00"
+    },
+    {
+      "pwd_id": 623,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 3,
+      "pwd_time_from": "08:00:00",
+      "pwd_time_to": "12:00:00"
+    },
+    {
+      "pwd_id": 623,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 3,
+      "pwd_time_from": "14:00:00",
+      "pwd_time_to": "18:00:00"
+    },
+    {
+      "pwd_id": 624,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 4,
+      "pwd_time_from": "08:00:00",
+      "pwd_time_to": "12:00:00"
+    },
+    {
+      "pwd_id": 624,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 4,
+      "pwd_time_from": "14:00:00",
+      "pwd_time_to": "18:00:00"
+    },
+    {
+      "pwd_id": 625,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 5,
+      "pwd_time_from": "08:00:00",
+      "pwd_time_to": "12:00:00"
+    },
+    {
+      "pwd_id": 625,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 5,
+      "pwd_time_from": "14:00:00",
+      "pwd_time_to": "18:00:00"
+    },
+    {
+      "pwd_id": 626,
+      "pwd_period_week_day_id": 36,
+      "pwd_period_day_in_week_id": 6,
+      "pwd_time_from": "08:00:00",
+      "pwd_time_to": "12:00:00"
+    }
+  ],
+  "PeriodYear": [
+    {
+      "pye_id": 8,
+      "pye_label": "Whole year",
+      "pye_start_month": 1,
+      "pye_start_day": 1,
+      "pye_end_month": 12,
+      "pye_end_day": 31
+    }
+  ]
+}