MOBILISIS-Calculator/library/src/calculate_price.cpp

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#include "calculate_price.h"
#include "configuration.h"
#include "calculator_functions.h"
#include "payment_option.h"
#include "utilities.h"
#include <QFile>
#include <QFileInfo>
#include <QDateTime>
#include <QDebug>
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#include <QList>
static Calculator calculator;
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QList<int> CALCULATE_LIBRARY_API get_time_steps(Configuration *cfg, qint64 startInMinutes) {
return calculator.GetTimeSteps(cfg, startInMinutes);
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}
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int CALCULATE_LIBRARY_API get_zone_nr(int zone)
{
if(zone > -1) return zone;
else
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{
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QFile zone("/etc/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();
}
}
}
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return -1;
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}
}
CalcState CALCULATE_LIBRARY_API init_tariff(parking_tariff_t **tariff, char const *config_file) {
*tariff = new Configuration();
CalcState calcState;
#if __linux__
int const zone = get_zone_nr();
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// DEBUG
qCritical() << "init_tariff:";
qCritical() << " ... zone = " << zone;
if (zone <= 0) {
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delete *tariff;
*tariff = nullptr;
return calcState.set(CalcState::State::ERROR_PARSING_ZONE_NR);
}
QString confFile(config_file);
if (!confFile.endsWith(QChar('/'))) {
confFile += "/";
}
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char buffer[32];
memset(buffer, 0x00, sizeof(buffer));
snprintf(buffer, sizeof(buffer)-1, "tariff%02d.json", zone);
confFile += buffer;
#else // windows
QString confFile(config_file);
#endif
// DEBUG
qCritical() << " ... confFile = " << confFile;
QFile fname(confFile);
if (fname.exists() &&
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fname.open(QIODevice::ReadOnly | QIODevice::Text)) {
// DEBUG
qCritical() << " ... confFile is open";
QString json = fname.readAll();
if (! (*tariff)->ParseJson(*tariff, json.toStdString().c_str())) {
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delete *tariff;
*tariff = nullptr;
return calcState.set(CalcState::State::ERROR_PARSING_TARIFF);
}
} else {
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delete *tariff;
*tariff = nullptr;
return calcState.set(CalcState::State::ERROR_LOADING_TARIFF);
}
qCritical() << "init_tariff: Parsing tariff config (" << confFile << ")";
return calcState;
}
void CALCULATE_LIBRARY_API free_tariff(parking_tariff_t *tariff) {
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if (tariff != nullptr) {
delete tariff;
}
}
//
// UpDown 1 -> up; 0 -> down
int CALCULATE_LIBRARY_API compute_next_timestep(parking_tariff_t *tariff, int currentTimeMinutes, int UpDown)
{
qCritical() << " compute_next_timestep() currentTimeMinutes: " << currentTimeMinutes;
Configuration const *cfg = tariff;
// compute payment method id (e.g. Linear=3, Steps=4)
PaymentMethod const paymentMethodId = Utilities::getPaymentMethodId(cfg);
switch (paymentMethodId) {
case PaymentMethod::Progressive:
qCritical() << " compute_next_timestep() paymentMethodId: Progressive";
break;
case PaymentMethod::Degressive:
qCritical() << " compute_next_timestep() paymentMethodId: Degressive";
break;
case PaymentMethod::Linear:
qCritical() << " compute_next_timestep() paymentMethodId: Linear";
break;
case PaymentMethod::Steps:
qCritical() << " compute_next_timestep() paymentMethodId: Steps";
break;
case PaymentMethod::Undefined:
qCritical() << " compute_next_timestep() paymentMethodId: Undefined";
break;
}
// use tariff with structure as for instance Schnau, Koenigsee:
// without given YearPeriod, SpecialDays and SpecialDaysWorktime
if (paymentMethodId == PaymentMethod::Steps)
{
static const QList<int> stepList = calculator.GetTimeSteps(tariff);
int currentStepIndex = stepList.indexOf(currentTimeMinutes);
if (currentStepIndex == -1) {
qCritical() << "compute_next_timestep() *NO STEP* for currentTimeMinutes (" << currentTimeMinutes << ")";
return currentTimeMinutes;
}
if (UpDown == 1) { // UP
if (stepList[currentStepIndex] == stepList.last()) {
qCritical() << "compute_next_timestep() *NO NEXT STEP* for currentTimeMinutes (" << currentTimeMinutes << ")";
return currentTimeMinutes;
}
else {
return stepList[currentStepIndex + 1];
}
}
if (UpDown == 0) { // DOWN
if (stepList[currentStepIndex] == stepList.first()) {
qCritical() << "compute_next_timestep() *NO PREVIOUS STEP* for currentTimeMinutes (" << currentTimeMinutes << ")";
return currentTimeMinutes;
}
else {
return stepList[currentStepIndex - 1];
}
}
} else
if (paymentMethodId == PaymentMethod::Linear) {
// currentTimeMinutes is the number of minutes actually used. This
// value is an offset from the start time and cannot be used as a
// QDateTime.
qCritical() << "compute_next_timestep() up/down (1=up, 0=down):" << UpDown;
// get minimal and maximal parking times
int const minParkingTime = Utilities::getMinimalParkingTime(cfg, paymentMethodId);
int const maxParkingTime = Utilities::getMaximalParkingTime(cfg, paymentMethodId);
qCritical() << " compute_next_timestep() maxParkingTime:" << maxParkingTime;
qCritical() << " compute_next_timestep() minParkingTime:" << minParkingTime;
// use the first (i.e. main duration step contained in the tariff json-file)
int firstDurationStep = Utilities::getFirstDurationStep(cfg, paymentMethodId);
firstDurationStep = ((UpDown == 1) ? firstDurationStep : -firstDurationStep);
qCritical() << " compute_next_timestep() firstDurationStep:" << firstDurationStep;
int const nextTimeStep = currentTimeMinutes + firstDurationStep;
if (nextTimeStep >= minParkingTime && nextTimeStep <= maxParkingTime) {
qCritical() << " compute_next_timestep() nextTimeStep:" << nextTimeStep;
return nextTimeStep;
}
}
qCritical() << "compute_next_timestep() *CAN NOT COMPUTE* for currentTimeMinutes (" << currentTimeMinutes << ")";
return currentTimeMinutes;
}
// this is currently not used
CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
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parking_tariff_t *tariff,
time_t start_parking_time, // in minutes
time_t end_parking_time, // netto time in minutes
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struct price_t *price) {
CalcState calcState;
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) {
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calcState.setDesc(QString("minMin=%1, maxMin=%2").arg(minMin).arg(maxMin));
return calcState.set(CalcState::State::WRONG_PARAM_VALUES);
}
int const duration = end_parking_time - start_parking_time;
if (duration < 0) {
calcState.setDesc(QString("end=%1, start=%2")
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.arg(end_parking_time, start_parking_time));
return calcState.set(CalcState::State::NEGATIVE_PARING_TIME);
}
if (duration > maxMin) {
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calcState.setDesc(QString("duration=%1, maxMin=%2").arg(duration).arg(maxMin));
return calcState.set(CalcState::State::ABOVE_MAX_PARKING_TIME);
}
if (duration < minMin) {
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calcState.setDesc(QString("duration=%1, minMin=%2").arg(duration).arg(minMin));
return calcState.set(CalcState::State::BELOW_MIN_PARKING_TIME);
}
if (duration == 0) {
memset(price, 0x00, sizeof(*price));
return calcState.set(CalcState::State::SUCCESS);
}
QDate const d(1970, 1, 1);
QTime const t(0, 0, 0);
QDateTime start(d, t, Qt::UTC);
start = start.toLocalTime().addSecs(start_parking_time * 60);
QDateTime end(start);
if (start.isValid()) {
double cost = calculator.GetCostFromDuration(
tariff,
tariff->getPaymentOptions().pop_payment_method_id,
start,
end,
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duration, false, true);
double minCost = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_min_price;
if (cost < minCost) {
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calcState.setDesc(QString("minCost=%1, cost=%2").arg(minCost).arg(cost));
return calcState.set(CalcState::State::BELOW_MIN_PARKING_PRICE);
}
price->units = cost;
price->netto = cost;
} else {
return calcState.set(CalcState::State::INVALID_START_DATE);
}
return calcState.set(CalcState::State::SUCCESS);
}
CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
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parking_tariff_t *tariff,
QDateTime const &start_parking_time,
int netto_parking_time,
QDateTime &end_parking_time,
struct price_t *price)
{
CalcState calcState;
double minMin = tariff->getPaymentOptions().pop_min_time;
double maxMin = tariff->getPaymentOptions().pop_max_time;
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// DEBUG
qCritical() << "compute_price_for_parking_ticket() " << endl
<< " start_parking_time: " << start_parking_time << endl
<< " netto_parking_time: " << netto_parking_time << endl
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<< " minMin: " << minMin << endl
<< " maxMin: " << maxMin;
if (netto_parking_time < 0) {
calcState.setDesc(QString("end=%1, start=%2")
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.arg(end_parking_time.toString(Qt::ISODate),
start_parking_time.toString(Qt::ISODate)));
return calcState.set(CalcState::State::NEGATIVE_PARING_TIME);
}
if (netto_parking_time > maxMin) {
calcState.setDesc(QString("duration=%1, maxMin=%2").arg(netto_parking_time).arg(maxMin));
return calcState.set(CalcState::State::ABOVE_MAX_PARKING_TIME);
}
if (netto_parking_time < minMin) {
calcState.setDesc(QString("duration=%1, minMin=%2").arg(netto_parking_time).arg(minMin));
return calcState.set(CalcState::State::BELOW_MIN_PARKING_TIME);
}
if (netto_parking_time == 0) {
memset(price, 0x00, sizeof(*price));
return calcState.set(CalcState::State::SUCCESS);
}
if (start_parking_time.isValid()) {
double cost = calculator.GetCostFromDuration(
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->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);
}
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// DEBUG
qCritical() << " -> calculated cost (price->netto) = " << cost;
price->units = cost;
price->netto = cost;
} else {
return calcState.set(CalcState::State::INVALID_START_DATE);
}
return calcState.set(CalcState::State::SUCCESS);
}
CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
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parking_tariff_t *tariff,
time_t start_parking_time,
double price,
QString &duration) {
CalcState calcState;
QDate const d(1970, 1, 1);
QTime const t(0, 0, 0);
QDateTime start(d, t, Qt::UTC);
start = start.toLocalTime().addSecs(start_parking_time * 60);
if (start.isValid()) {
QString cs = start.toString(Qt::ISODate);
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// DEBUG
qCritical() << "compute_duration_for_parking_ticket(): ";
qCritical() << " start (cs): " << cs;
qCritical() << " price: " << price;
duration = calculator.GetDurationFromCost(tariff,
tariff->getPaymentOptions().pop_payment_method_id,
cs.toLocal8Bit().constData(),
price, false, true).c_str();
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QDateTime d = QDateTime::fromString(duration, Qt::ISODate);
if (!d.isValid()) {
calcState.setDesc(QString("ticketEndTime=%1").arg(duration));
return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
}
} else {
return calcState.set(CalcState::State::INVALID_START_DATE);
}
return calcState.set(CalcState::State::SUCCESS);
}
CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
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parking_tariff_t *tariff,
QDateTime const &start_parking_time,
double price,
QDateTime &ticketEndTime)
{
CalcState calcState;
if (start_parking_time.isValid()) {
QString cs = start_parking_time.toString(Qt::ISODate);
QString endTime = calculator.GetDurationFromCost(
tariff,
tariff->getPaymentOptions().pop_payment_method_id,
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cs.toLocal8Bit().constData(),
price, false, true).c_str();
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ticketEndTime = QDateTime::fromString(endTime,Qt::ISODate);
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// DEBUG
qCritical() << "compute_duration_for_parking_ticket(): ";
qCritical() << " endTime: " << endTime;
qCritical() << " ticketEndTime: " << ticketEndTime;
if (!ticketEndTime.isValid()) {
calcState.setDesc(QString("ticketEndTime=%1").arg(endTime));
return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
}
} else {
return calcState.set(CalcState::State::INVALID_START_DATE);
}
return calcState.set(CalcState::State::SUCCESS);
}
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CalcState CALCULATE_LIBRARY_API compute_duration_for_daily_ticket(parking_tariff_t *tariff, QDateTime const &start_parking_time, QDateTime &ticketEndTime)
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{
CalcState calcState;
if (start_parking_time.isValid()) {
ticketEndTime = calculator.GetDailyTicketDuration(tariff,
start_parking_time,
tariff->getPaymentOptions().pop_payment_method_id,
false); // carry over
// DEBUG
qCritical() << "compute_duration_for_daily_ticket(): ";
qCritical() << " ticketEndTime: " << ticketEndTime;
if (!ticketEndTime.isValid()) {
calcState.setDesc(QString("ticketEndTime=%1").arg(ticketEndTime.toString(Qt::ISODate)));
return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
}
} else {
return calcState.set(CalcState::State::INVALID_START_DATE);
}
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return calcState.set(CalcState::State::SUCCESS);
}