2023-04-24 15:31:46 +02:00
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#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 <QFile>
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#include <QFileInfo>
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#include <QDateTime>
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#include <QDebug>
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static Calculator calculator;
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2023-05-02 09:46:17 +02:00
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int CALCULATE_LIBRARY_API get_zone_nr() {
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2023-04-24 15:31:46 +02:00
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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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2023-05-05 13:19:02 +02:00
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QTextStream in(&zone);
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return in.readLine(100).toInt();
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2023-04-24 15:31:46 +02:00
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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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2023-05-08 12:34:01 +02:00
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CalcState CALCULATE_LIBRARY_API init_tariff(parking_tariff_t **tariff, char const *config_file) {
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2023-04-24 15:31:46 +02:00
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*tariff = new Configuration();
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2023-05-08 12:34:01 +02:00
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CalcState calcState;
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2023-04-24 15:31:46 +02:00
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int const zone = get_zone_nr();
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2023-05-05 13:19:02 +02:00
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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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2023-05-08 12:34:01 +02:00
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return calcState.set(CalcState::State::ERROR_PARSING_ZONE_NR);
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2023-04-24 15:31:46 +02:00
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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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2023-05-05 13:19:02 +02:00
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char buffer[32];
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2023-04-24 15:31:46 +02:00
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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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2023-05-05 13:19:36 +02:00
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// DEBUG
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qCritical() << " ... confFile = " << confFile;
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2023-04-24 15:31:46 +02:00
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QFile fname(confFile);
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2023-05-08 12:34:01 +02:00
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if (fname.exists() &&
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fname.open(QIODevice::ReadOnly | QIODevice::Text)) {
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2023-05-05 13:19:36 +02:00
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// DEBUG
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2023-05-08 12:34:01 +02:00
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qCritical() << " ... confFile is open";
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2023-05-05 13:19:36 +02:00
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2023-05-08 12:34:01 +02:00
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QString json = fname.readAll();
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if (! (*tariff)->ParseJson(*tariff, json.toStdString().c_str())) {
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2023-05-09 11:52:17 +02:00
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return calcState.set(CalcState::State::ERROR_PARSING_TARIFF);
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2023-04-24 15:31:46 +02:00
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}
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2023-05-08 12:34:01 +02:00
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} else {
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2023-05-09 11:52:17 +02:00
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return calcState.set(CalcState::State::ERROR_LOADING_TARIFF);
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2023-04-24 15:31:46 +02:00
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}
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2023-05-09 11:52:17 +02:00
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qCritical() << "init_tariff: Parsing tariff config (" << confFile << ")";
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2023-05-05 13:19:36 +02:00
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2023-05-08 12:34:01 +02:00
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return calcState;
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2023-04-24 15:31:46 +02:00
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}
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2023-05-02 09:46:17 +02:00
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void CALCULATE_LIBRARY_API free_tariff(parking_tariff_t *tariff) {
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2023-04-24 15:31:46 +02:00
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delete tariff;
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}
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2023-05-08 12:34:01 +02:00
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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, // 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(PaymentOption::Option1)->second.pop_min_time;
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double maxMin = tariff->PaymentOption.find(PaymentOption::Option1)->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, maxMin));
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return calcState.set(CalcState::State::WRONG_PARAM_VALUES);
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}
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2023-04-24 15:31:46 +02:00
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int const duration = end_parking_time - start_parking_time;
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2023-05-08 12:34:01 +02:00
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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, 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, minMin));
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return calcState.set(CalcState::State::BELOW_MIN_PARKING_TIME);
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}
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2023-04-24 15:31:46 +02:00
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if (duration == 0) {
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memset(price, 0x00, sizeof(*price));
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2023-05-08 12:34:01 +02:00
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return calcState.set(CalcState::State::SUCCESS);
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2023-04-24 15:31:46 +02:00
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}
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2023-05-08 12:34:01 +02:00
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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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double cost = calculator.GetCostFromDuration(
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tariff, PaymentOption::Option1,
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cs.toLocal8Bit().constData(),
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duration, false, true);
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double minCost = tariff->PaymentOption.find(PaymentOption::Option1)->second.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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price->units = cost;
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price->netto = cost;
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2023-05-09 11:40:14 +02:00
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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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duration = calculator.GetDurationFromCost(tariff, PaymentOption::Option1,
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cs.toLocal8Bit().constData(),
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price, false, true).c_str();
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} else {
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return calcState.set(CalcState::State::INVALID_START_DATE);
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2023-05-08 12:34:01 +02:00
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}
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return calcState.set(CalcState::State::SUCCESS);
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2023-04-24 15:31:46 +02:00
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}
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