409 lines
15 KiB
C++
409 lines
15 KiB
C++
#include "calculate_price.h"
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#include "configuration.h"
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#include "calculator_functions.h"
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#include "payment_option.h"
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#include "utilities.h"
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#include <QFile>
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#include <QFileInfo>
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#include <QDateTime>
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#include <QDebug>
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#include <QList>
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static Calculator calculator;
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QList<int> CALCULATE_LIBRARY_API get_time_steps(Configuration *cfg, qint64 startInMinutes) {
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return calculator.GetTimeSteps(cfg, startInMinutes);
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}
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int CALCULATE_LIBRARY_API get_zone_nr(int zone)
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{
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if(zone > -1) return zone;
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else
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{
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QFile zone("/etc/zone_nr");
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if (zone.exists()) {
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QFileInfo finfo(zone);
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if (finfo.size() <= 4) { // decimal 000\n
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if (zone.open(QIODevice::ReadOnly | QIODevice::Text)) {
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QTextStream in(&zone);
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return in.readLine(100).toInt();
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}
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}
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}
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return -1;
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}
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}
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CalcState CALCULATE_LIBRARY_API init_tariff(parking_tariff_t **tariff, char const *config_file) {
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*tariff = new Configuration();
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CalcState calcState;
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#if __linux__
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int const zone = get_zone_nr();
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// DEBUG
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qCritical() << "init_tariff:";
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qCritical() << " ... zone = " << zone;
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if (zone <= 0) {
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delete *tariff;
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*tariff = nullptr;
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return calcState.set(CalcState::State::ERROR_PARSING_ZONE_NR);
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}
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QString confFile(config_file);
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if (!confFile.endsWith(QChar('/'))) {
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confFile += "/";
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}
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char buffer[32];
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memset(buffer, 0x00, sizeof(buffer));
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snprintf(buffer, sizeof(buffer)-1, "tariff%02d.json", zone);
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confFile += buffer;
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#else // windows
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QString confFile(config_file);
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#endif
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// DEBUG
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qCritical() << " ... confFile = " << confFile;
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QFile fname(confFile);
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if (fname.exists() &&
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fname.open(QIODevice::ReadOnly | QIODevice::Text)) {
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// DEBUG
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qCritical() << " ... confFile is open";
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QString json = fname.readAll();
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if (! (*tariff)->ParseJson(*tariff, json.toStdString().c_str())) {
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delete *tariff;
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*tariff = nullptr;
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return calcState.set(CalcState::State::ERROR_PARSING_TARIFF);
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}
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} else {
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delete *tariff;
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*tariff = nullptr;
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return calcState.set(CalcState::State::ERROR_LOADING_TARIFF);
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}
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qCritical() << "init_tariff: Parsing tariff config (" << confFile << ")";
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return calcState;
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}
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void CALCULATE_LIBRARY_API free_tariff(parking_tariff_t *tariff) {
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if (tariff != nullptr) {
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delete tariff;
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}
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}
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//
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// UpDown 1 -> up; 0 -> down
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int CALCULATE_LIBRARY_API compute_next_timestep(parking_tariff_t *tariff, int currentTimeMinutes, int UpDown)
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{
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qCritical() << " compute_next_timestep() currentTimeMinutes: " << currentTimeMinutes;
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Configuration const *cfg = tariff;
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// compute payment method id (e.g. Linear=3, Steps=4)
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PaymentMethod const paymentMethodId = Utilities::getPaymentMethodId(cfg);
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switch (paymentMethodId) {
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case PaymentMethod::Progressive:
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qCritical() << " compute_next_timestep() paymentMethodId: Progressive";
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break;
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case PaymentMethod::Degressive:
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qCritical() << " compute_next_timestep() paymentMethodId: Degressive";
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break;
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case PaymentMethod::Linear:
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qCritical() << " compute_next_timestep() paymentMethodId: Linear";
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break;
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case PaymentMethod::Steps:
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qCritical() << " compute_next_timestep() paymentMethodId: Steps";
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break;
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case PaymentMethod::Undefined:
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qCritical() << " compute_next_timestep() paymentMethodId: Undefined";
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break;
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}
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// use tariff with structure as for instance Schnau, Koenigsee:
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// without given YearPeriod, SpecialDays and SpecialDaysWorktime
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if (paymentMethodId == PaymentMethod::Steps)
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{
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static const QList<int> stepList = calculator.GetTimeSteps(tariff);
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int currentStepIndex = stepList.indexOf(currentTimeMinutes);
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if (currentStepIndex == -1) {
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qCritical() << "compute_next_timestep() *NO STEP* for currentTimeMinutes (" << currentTimeMinutes << ")";
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return currentTimeMinutes;
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}
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if (UpDown == 1) { // UP
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if (stepList[currentStepIndex] == stepList.last()) {
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qCritical() << "compute_next_timestep() *NO NEXT STEP* for currentTimeMinutes (" << currentTimeMinutes << ")";
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return currentTimeMinutes;
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}
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else {
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return stepList[currentStepIndex + 1];
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}
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}
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if (UpDown == 0) { // DOWN
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if (stepList[currentStepIndex] == stepList.first()) {
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qCritical() << "compute_next_timestep() *NO PREVIOUS STEP* for currentTimeMinutes (" << currentTimeMinutes << ")";
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return currentTimeMinutes;
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}
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else {
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return stepList[currentStepIndex - 1];
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}
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}
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} else
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if (paymentMethodId == PaymentMethod::Linear) {
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// currentTimeMinutes is the number of minutes actually used. This
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// value is an offset from the start time and cannot be used as a
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// QDateTime.
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qCritical() << "compute_next_timestep() up/down (1=up, 0=down):" << UpDown;
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// get minimal and maximal parking times
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int const minParkingTime = Utilities::getMinimalParkingTime(cfg, paymentMethodId);
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int const maxParkingTime = Utilities::getMaximalParkingTime(cfg, paymentMethodId);
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qCritical() << " compute_next_timestep() maxParkingTime:" << maxParkingTime;
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qCritical() << " compute_next_timestep() minParkingTime:" << minParkingTime;
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// use the first (i.e. main duration step contained in the tariff json-file)
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int firstDurationStep = Utilities::getFirstDurationStep(cfg, paymentMethodId);
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firstDurationStep = ((UpDown == 1) ? firstDurationStep : -firstDurationStep);
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qCritical() << " compute_next_timestep() firstDurationStep:" << firstDurationStep;
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int const nextTimeStep = currentTimeMinutes + firstDurationStep;
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if (nextTimeStep >= minParkingTime && nextTimeStep <= maxParkingTime) {
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qCritical() << " compute_next_timestep() nextTimeStep:" << nextTimeStep;
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return nextTimeStep;
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}
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}
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qCritical() << "compute_next_timestep() *CAN NOT COMPUTE* for currentTimeMinutes (" << currentTimeMinutes << ")";
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return currentTimeMinutes;
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}
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// this is currently not used
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CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
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parking_tariff_t *tariff,
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time_t start_parking_time, // in minutes
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time_t end_parking_time, // netto time in minutes
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struct price_t *price) {
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CalcState calcState;
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double minMin = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_min_time;
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double maxMin = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_max_time;
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if (minMin < 0 || maxMin < 0 || maxMin < minMin) {
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calcState.setDesc(QString("minMin=%1, maxMin=%2").arg(minMin).arg(maxMin));
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return calcState.set(CalcState::State::WRONG_PARAM_VALUES);
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}
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int const duration = end_parking_time - start_parking_time;
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if (duration < 0) {
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calcState.setDesc(QString("end=%1, start=%2")
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.arg(end_parking_time, start_parking_time));
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return calcState.set(CalcState::State::NEGATIVE_PARING_TIME);
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}
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if (duration > maxMin) {
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calcState.setDesc(QString("duration=%1, maxMin=%2").arg(duration).arg(maxMin));
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return calcState.set(CalcState::State::ABOVE_MAX_PARKING_TIME);
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}
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if (duration < minMin) {
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calcState.setDesc(QString("duration=%1, minMin=%2").arg(duration).arg(minMin));
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return calcState.set(CalcState::State::BELOW_MIN_PARKING_TIME);
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}
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if (duration == 0) {
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memset(price, 0x00, sizeof(*price));
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return calcState.set(CalcState::State::SUCCESS);
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}
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QDate const d(1970, 1, 1);
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QTime const t(0, 0, 0);
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QDateTime start(d, t, Qt::UTC);
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start = start.toLocalTime().addSecs(start_parking_time * 60);
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QDateTime end(start);
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if (start.isValid()) {
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double cost = calculator.GetCostFromDuration(
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tariff,
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tariff->getPaymentOptions().pop_payment_method_id,
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start,
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end,
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duration, false, true);
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double minCost = tariff->PaymentOption.find(tariff->getPaymentOptions().pop_payment_method_id)->second.pop_min_price;
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if (cost < minCost) {
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calcState.setDesc(QString("minCost=%1, cost=%2").arg(minCost).arg(cost));
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return calcState.set(CalcState::State::BELOW_MIN_PARKING_PRICE);
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}
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price->units = cost;
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price->netto = cost;
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} else {
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return calcState.set(CalcState::State::INVALID_START_DATE);
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}
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return calcState.set(CalcState::State::SUCCESS);
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}
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CalcState CALCULATE_LIBRARY_API compute_price_for_parking_ticket(
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parking_tariff_t *tariff,
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QDateTime const &start_parking_time,
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int netto_parking_time,
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QDateTime &end_parking_time,
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struct price_t *price)
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{
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CalcState calcState;
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double minMin = tariff->getPaymentOptions().pop_min_time;
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double maxMin = tariff->getPaymentOptions().pop_max_time;
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// DEBUG
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qCritical() << "compute_price_for_parking_ticket() " << endl
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<< " start_parking_time: " << start_parking_time << endl
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<< " netto_parking_time: " << netto_parking_time << endl
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<< " minMin: " << minMin << endl
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<< " maxMin: " << maxMin;
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if (netto_parking_time < 0) {
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calcState.setDesc(QString("end=%1, start=%2")
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.arg(end_parking_time.toString(Qt::ISODate),
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start_parking_time.toString(Qt::ISODate)));
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return calcState.set(CalcState::State::NEGATIVE_PARING_TIME);
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}
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if (netto_parking_time > maxMin) {
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calcState.setDesc(QString("duration=%1, maxMin=%2").arg(netto_parking_time).arg(maxMin));
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return calcState.set(CalcState::State::ABOVE_MAX_PARKING_TIME);
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}
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if (netto_parking_time < minMin) {
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calcState.setDesc(QString("duration=%1, minMin=%2").arg(netto_parking_time).arg(minMin));
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return calcState.set(CalcState::State::BELOW_MIN_PARKING_TIME);
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}
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if (netto_parking_time == 0) {
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memset(price, 0x00, sizeof(*price));
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return calcState.set(CalcState::State::SUCCESS);
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}
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if (start_parking_time.isValid()) {
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double cost = calculator.GetCostFromDuration(
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tariff,
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tariff->getPaymentOptions().pop_payment_method_id,
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start_parking_time, // starting time
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end_parking_time, // return value: end time
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netto_parking_time, // minutes, netto
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false, true);
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double minCost = tariff->getPaymentOptions().pop_min_price;
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if (cost < minCost) {
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calcState.setDesc(QString("minCost=%1, cost=%2").arg(minCost, cost));
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return calcState.set(CalcState::State::BELOW_MIN_PARKING_PRICE);
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}
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// DEBUG
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qCritical() << " -> calculated cost (price->netto) = " << cost;
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price->units = cost;
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price->netto = cost;
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} else {
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return calcState.set(CalcState::State::INVALID_START_DATE);
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}
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return calcState.set(CalcState::State::SUCCESS);
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}
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CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
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parking_tariff_t *tariff,
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time_t start_parking_time,
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double price,
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QString &duration) {
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CalcState calcState;
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QDate const d(1970, 1, 1);
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QTime const t(0, 0, 0);
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QDateTime start(d, t, Qt::UTC);
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start = start.toLocalTime().addSecs(start_parking_time * 60);
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if (start.isValid()) {
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QString cs = start.toString(Qt::ISODate);
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// DEBUG
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qCritical() << "compute_duration_for_parking_ticket(): ";
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qCritical() << " start (cs): " << cs;
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qCritical() << " price: " << price;
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duration = calculator.GetDurationFromCost(tariff,
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tariff->getPaymentOptions().pop_payment_method_id,
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cs.toLocal8Bit().constData(),
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price, false, true).c_str();
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QDateTime d = QDateTime::fromString(duration, Qt::ISODate);
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if (!d.isValid()) {
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calcState.setDesc(QString("ticketEndTime=%1").arg(duration));
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return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
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}
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} else {
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return calcState.set(CalcState::State::INVALID_START_DATE);
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}
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return calcState.set(CalcState::State::SUCCESS);
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}
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CalcState CALCULATE_LIBRARY_API compute_duration_for_parking_ticket(
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parking_tariff_t *tariff,
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QDateTime const &start_parking_time,
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double price,
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QDateTime &ticketEndTime)
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{
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CalcState calcState;
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if (start_parking_time.isValid()) {
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QString cs = start_parking_time.toString(Qt::ISODate);
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QString endTime = calculator.GetDurationFromCost(
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tariff,
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tariff->getPaymentOptions().pop_payment_method_id,
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cs.toLocal8Bit().constData(),
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price, false, true).c_str();
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ticketEndTime = QDateTime::fromString(endTime,Qt::ISODate);
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// DEBUG
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qCritical() << "compute_duration_for_parking_ticket(): ";
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qCritical() << " endTime: " << endTime;
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qCritical() << " ticketEndTime: " << ticketEndTime;
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if (!ticketEndTime.isValid()) {
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calcState.setDesc(QString("ticketEndTime=%1").arg(endTime));
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return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
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}
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} else {
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return calcState.set(CalcState::State::INVALID_START_DATE);
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}
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return calcState.set(CalcState::State::SUCCESS);
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}
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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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{
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CalcState calcState;
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if (start_parking_time.isValid()) {
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ticketEndTime = calculator.GetDailyTicketDuration(tariff,
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start_parking_time,
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tariff->getPaymentOptions().pop_payment_method_id,
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false); // carry over
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// DEBUG
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qCritical() << "compute_duration_for_daily_ticket(): ";
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qCritical() << " ticketEndTime: " << ticketEndTime;
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if (!ticketEndTime.isValid()) {
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calcState.setDesc(QString("ticketEndTime=%1").arg(ticketEndTime.toString(Qt::ISODate)));
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return calcState.set(CalcState::State::WRONG_ISO_TIME_FORMAT);
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}
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} else {
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return calcState.set(CalcState::State::INVALID_START_DATE);
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}
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return calcState.set(CalcState::State::SUCCESS);
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}
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