Fix in Calculator::GetPriceForTimeStep():

Allow some tolerance (of 3 minutes) when looking up the
	current time-step value in the duration-array.
	Otherwise, when corossing a minute-boundary, it can happen to
	not find the match and returning a price of 0 (which is almost
	always wrong).

library/include/mobilisis/tariff_carryover.h

@@ -65,13 +65,22 @@ struct ATBTariffCarryOver {
         int minutes = 0;
         QString end = m_range.m_end.toString(Qt::ISODate);
         if (end == "24:00:00") {
-            QDateTime t = dt.addDays(1);
-            t.setTime(QTime(0,0,0));
-            minutes = dt.secsTo(t) / 60;
+            // note: this did not work
+            // QDateTime t(dt.addDays(1));
+            // t.setTime(QTime(0,0,0));
+            // dt: 2024-10-27T00:00:00 EEST, but t: 2024-10-28T00:00:00 EET (!)
+            // so the difference is 1500 instead of 1440
+            // reason: change from summer to winter time
+
+            // compute minutes directly
+            if (dt.time().isValid()) {
+                minutes = 1440 - (dt.time().hour() * 60 + dt.time().minute());
+            }
         } else {
-            QDateTime t(dt);
-            t.setTime(QTime::fromString(end, Qt::ISODate));
-            minutes = dt.secsTo(t) / 60;
+            QTime t(QTime::fromString(end, Qt::ISODate));
+            if (t.isValid() && dt.time().isValid()) {
+                minutes = (t.hour() * 60 + t.minute()) - (dt.time().hour() * 60 + dt.time().minute());
+            }
         }
 
         if (minutes < 0 || minutes > m_range.m_duration) {

library/src/calculate_price.cpp

@@ -396,16 +396,14 @@ int CALCULATE_LIBRARY_API get_zone_nr(int zone)
     if(zone > -1) return zone;
     else
     {
-        QFile zone("/etc/zone_nr");
+        QFile zone("/mnt/system_data/zone_nr");
         if (zone.exists()) {
             QFileInfo finfo(zone);
-            if (finfo.size() <= 4) { // decimal 000\n
             if (zone.open(QIODevice::ReadOnly | QIODevice::Text)) {
                 QTextStream in(&zone);
                 return in.readLine(100).toInt();
             }
         }
-        }
         return -1;
     }
 }
@@ -782,7 +780,7 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
     double maxMin = tariff->getPaymentOptions(paymentOptionIndex).pop_max_time;
 
     // DEBUG
-    qCritical() << "compute_price_for_parking_ticket() " << endl
+    qCritical() << __func__ << ":" << __LINE__ << endl
                 << "          paymentOptionIndex: " << paymentOptionIndex << endl
                 << "          start_parking_time: " << start_parking_time << endl
                 << "          netto_parking_time: " << netto_parking_time << endl
@@ -914,10 +912,12 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
 
             if (carryOver == 1) {
                 QTime carryOverStart = tariff->TariffCarryOverOptions.find(pop_carry_over_option_id)->second.carryover[weekDay].static_start;
+                QTime carryOverEnd = tariff->TariffCarryOverOptions.find(pop_carry_over_option_id)->second.carryover[weekDay].static_end;
                 int carryOverDuration = tariff->TariffCarryOverOptions.find(pop_carry_over_option_id)->second.carryover[weekDay].duration;
 
-                qCritical() << __func__ << ":" << __LINE__ << "   carryOverStart" << carryOverStart.toString(Qt::ISODate);
-                qCritical() << __func__ << ":" << __LINE__ << "carryOverDuration" << carryOverDuration;
+                qCritical() << __func__ << ":" << __LINE__ << "   carryOverStart:" << carryOverStart.toString(Qt::ISODate);
+                qCritical() << __func__ << ":" << __LINE__ << "     carryOverEnd:" << carryOverEnd.toString(Qt::ISODate);
+                qCritical() << __func__ << ":" << __LINE__ << "carryOverDuration:" << carryOverDuration;
 
                 // handle carry over
                 int minutesUntilCarryOver = effectiveStartTime.time().secsTo(carryOverStart) / 60;
@@ -943,12 +943,21 @@ CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
                     end_parking_time = end_parking_time.addSecs(carryOverDuration * 60);
                 } else
                 if (end_parking_time.time() == carryOverStart) {
-                    qCritical() << __func__ << ":" << __LINE__ << "end-parking-time:" << end_parking_time.toString(Qt::ISODate);
-                    qCritical() << __func__ << ":" << __LINE__ << "   carryOverStart" << carryOverStart.toString(Qt::ISODate);
+                    qCritical() << __func__ << ":" << __LINE__ << "        end-parking-time:" << end_parking_time.toString(Qt::ISODate);
+                    qCritical() << __func__ << ":" << __LINE__ << "          carryOverStart:" << carryOverStart.toString(Qt::ISODate);
                     ATBPaymentOption const &po = tariff->getPaymentOptions(paymentOptionIndex);
                     if (po.pop_apply_carry_over_to_ticket_endtime) {
                         end_parking_time = end_parking_time.addSecs(carryOverDuration * 60);
-                        qCritical() << __func__ << ":" << __LINE__ << "end-parking-time:" << end_parking_time.toString(Qt::ISODate);
+                        qCritical() << __func__ << ":" << __LINE__ << "adapted end-parking-time:" << end_parking_time.toString(Qt::ISODate);
+                    }
+                } else
+                if (end_parking_time.time() == carryOverEnd) {
+                    qCritical() << __func__ << ":" << __LINE__ << "        end-parking-time:" << end_parking_time.toString(Qt::ISODate);
+                    qCritical() << __func__ << ":" << __LINE__ << "            carryOverEnd:" << carryOverEnd.toString(Qt::ISODate);
+                    ATBPaymentOption const &po = tariff->getPaymentOptions(paymentOptionIndex);
+                    if (po.pop_apply_carry_over_to_ticket_endtime == false) {
+                        end_parking_time = end_parking_time.addSecs(-carryOverDuration * 60);
+                        qCritical() << __func__ << ":" << __LINE__ << "adapted end-parking-time:" << end_parking_time.toString(Qt::ISODate);
                     }
                 }
             } else {

library/src/calculator_functions.cpp

@@ -458,7 +458,7 @@ Calculator::ComputeDurationFromCost(Configuration *cfg,
                                                         arg(cost).arg(nettoParktimeForCost);
 
     int cnt = 0;
-    while (++cnt < 10 && netto_parking_time_in_minutes < nettoParktimeForCost) {
+    while (++cnt < 20 && netto_parking_time_in_minutes < nettoParktimeForCost) {
         // qCritical() << __func__ << ":" << __LINE__ << "cnt [" << cnt;
 
         brutto_parking_time_in_minutes = free_parking_time_in_minutes + netto_parking_time_in_minutes;
@@ -3584,7 +3584,9 @@ uint32_t Calculator::GetPriceForTimeStep(Configuration *cfg, int timeStep, int p
             qCritical() << "(" << __func__ << ":" << __LINE__ << ") timeStep" << timeStep;
         }
 
-        if (timeStep == pun_duration) {
+        // allow some tolerance when searching for [timeStep == pun_duration]:
+        // this might happen when crossing minute boundaries
+        if (std::abs(timeStep - pun_duration) < 4) {
             qCritical() << "(" << __func__ << ":" << __LINE__ << ") return price" << price;
             return price;
         }