start repository for mobilisis tariff-calculation
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270
library/src/utilities.cpp
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270
library/src/utilities.cpp
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#include "utilities.h"
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#include "tariff_log.h"
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static int protection_counter = 0;
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/// <summary>
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/// Helper function
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/// </summary>
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/// <param name="pra_price"></param>
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/// <returns></returns>
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double Utilities::CalculatePricePerUnit(double pra_price)
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{
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try
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{
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double price_per_unit = pra_price;
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price_per_unit /= 60.0f; // Divided by 60 because price per unit is set per hour and we are using minutes
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//printf("Price per unit (min) is: %lf\n", price_per_unit);
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return price_per_unit;
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}
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catch (...)
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{
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throw std::invalid_argument("An error has occurred in CalculatePricePerUnit() function\n");
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}
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}
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/// <inheritdoc/>
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time_t Utilities::GetCurrentLocalTime()
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{
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try
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{
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time_t curr_time = time(NULL);
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tm tm_curr_time = {};
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memset(&tm_curr_time, '\0', sizeof(struct tm));
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tm_curr_time = *localtime(&curr_time);
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curr_time = mktime(&tm_curr_time) - timezone;
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return curr_time;
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}
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catch (...)
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{
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throw std::invalid_argument("An error has occurred in GetCurrentLocalTime() function\n");
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}
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}
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/// <inheritdoc/>
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int Utilities::ZellersAlgorithm(int day, int month, int year)
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{
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int mon;
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if (month > 2) mon = month; //for march to december month code is same as month
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else {
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mon = (12 + month); //for Jan and Feb, month code will be 13 and 14
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year--; //decrease year for month Jan and Feb
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}
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int y = year % 100; //last two digit
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int c = year / 100; //first two digit
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int w = (day + floor((13 * (mon + 1)) / 5) + y + floor(y / 4) + floor(c / 4) + (5 * c));
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w = ((w + 5) % 7) + 1; //w % 7;
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return w;
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}
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/// <inheritdoc/>
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struct tm Utilities::DateToStructTm(const char* dateStr)
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{
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struct tm t = {};
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memset(&t, '\0', sizeof(struct tm));
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if (dateStr == nullptr || strlen(dateStr) <= 0) throw std::invalid_argument("DateToStructTm has failed parsing date string (null or empty)\n");
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try
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{
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int success = sscanf(dateStr, "%d-%d-%d", &t.tm_year, &t.tm_mon, &t.tm_mday);
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if (success != 3) throw std::invalid_argument("DateToStructTm() has failed parsing datetime string\n");
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t.tm_year = t.tm_year - 1900;
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t.tm_mon = t.tm_mon - 1;
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t.tm_isdst = 0;
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return t;
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}
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catch (...)
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{
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throw std::invalid_argument("An error has occurred in DateToStructTm() function\n");
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}
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}
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/// <inheritdoc/>
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struct tm Utilities::TimeToStructTm(const char* timeStr, int year, int mon, int mday, int wday)
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{
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struct tm t = {};
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memset(&t, '\0', sizeof(struct tm));
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if (timeStr == nullptr || strlen(timeStr) <= 0) throw std::invalid_argument("TimeToStructTm() has failed parsing time string (null or empty)\n");
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try
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{
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int success_time = sscanf(timeStr, "%d:%d:%d", &t.tm_hour, &t.tm_min, &t.tm_sec);
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if (success_time != 3) throw std::invalid_argument("TimeToStructTm() has failed parsing time string\n");
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struct tm tm_struct;
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t.tm_year = year;
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t.tm_mon = mon;
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t.tm_mday = mday;
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t.tm_wday = wday;
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t.tm_isdst = 0;
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return t;
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}
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catch (...)
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{
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throw std::invalid_argument("An error has occurred in TimeToStructTm() function\n");
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}
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}
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/// <inheritdoc/>
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struct tm Utilities::DateTimeToStructTm(const char* dateTimeStr)
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{
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struct tm t = {};
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memset(&t, '\0', sizeof(struct tm));
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if (dateTimeStr == nullptr || strlen(dateTimeStr) <= 0) throw std::invalid_argument("DateTimeToStructTm() has failed parsing date string (null or empty)");
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try
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{
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int success = sscanf(dateTimeStr, "%d-%d-%dT%d:%d:%dZ", &t.tm_year, &t.tm_mon, &t.tm_mday, &t.tm_hour, &t.tm_min, &t.tm_sec);
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if (success != 6) throw std::invalid_argument("DateTimeToStructTm() has failed parsing datetime string\n");
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t.tm_year = t.tm_year - 1900;
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t.tm_mon = t.tm_mon - 1;
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t.tm_isdst = 0;
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return t;
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}
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catch (...)
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{
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throw std::invalid_argument("An error has occurred in DateTimeToStructTm() function\n");
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}
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}
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/// <inheritdoc/>
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DayOfWeek Utilities::GetDayOfWeek(struct tm* t)
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{
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if (t == nullptr) throw std::invalid_argument("GetDayOfWeekFromDate() => parameter 't' is null\n");
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try
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{
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int d = t->tm_mday;
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int m = t->tm_mon + 1;
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int y = t->tm_year + 1900;
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int wd = Utilities::ZellersAlgorithm(d, m, y);
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return static_cast<DayOfWeek>(wd);
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}
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catch (...)
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{
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throw std::invalid_argument("An error has occurred in GetDayOfWeekFromDate() function\n");
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}
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}
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/// <inheritdoc/>
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bool Utilities::IsYearPeriodActive(Configuration* cfg, struct tm* currentDateTime_tm)
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{
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if (cfg == nullptr) throw std::invalid_argument("IsYearPeriodActive() = > Configuration not set\n");
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if (currentDateTime_tm == nullptr) throw std::invalid_argument("IsYearPeriodActive() = > Current datetime not set\n");
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try
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{
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//// Parse input date
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int dayCurrent = currentDateTime_tm->tm_mday;
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int monthCurrent = currentDateTime_tm->tm_mon + 1;
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// Current date time
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int cdt = (monthCurrent * 100) + dayCurrent;
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multimap<int, ATBPeriodYear>::iterator year_period_itr;
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for (year_period_itr = cfg->YearPeriod.begin(); year_period_itr != cfg->YearPeriod.end(); ++year_period_itr)
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{
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int dStart = year_period_itr->second.pye_start_day;
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int dEnd = year_period_itr->second.pye_end_day;
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int mStart = year_period_itr->second.pye_start_month;
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int mEnd = year_period_itr->second.pye_end_month;
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int start = (mStart * 100) + dStart;
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int end = (mEnd * 100) + dEnd;
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if (cdt >= start && cdt <= end)
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{
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return true;
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}
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}
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return false;
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}
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catch (...)
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{
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cout << "IsYearPeriodActive() => An exception has occurred, ignoring check, returning true" << endl;
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return true;
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}
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}
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/// <inheritdoc/>
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bool Utilities::CheckSpecialDay(Configuration* cfg, const char* currentDateTimeStr, int* specialDayId, double* specialDayPrice)
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{
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try
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{
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*specialDayId = -1;
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*specialDayPrice = 0.0f;
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if (cfg == nullptr) throw std::invalid_argument("CheckSpecialDay() => configuration is not set\n");
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if (currentDateTimeStr == nullptr) throw std::invalid_argument("CheckSpecialDay() => invalid date/time string set\n");
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struct tm current_tm = Utilities::DateTimeToStructTm(currentDateTimeStr);
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//cout << "CheckSpecialDay() => Current: " << asctime(¤t_tm) << endl;
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multimap<int, ATBSpecialDays>::iterator spec_days_itr;
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for (spec_days_itr = cfg->SpecialDays.begin(); spec_days_itr != cfg->SpecialDays.end(); spec_days_itr++)
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{
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int repeat_every_year = 0;
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repeat_every_year = spec_days_itr->second.ped_year;
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string start = spec_days_itr->second.ped_date_start;
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if (start.length() <= 0) continue;
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//cout << "CheckSpecialDay() => Start: " << start << endl;
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string end = spec_days_itr->second.ped_date_end;
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if (end.length() <= 0) continue;
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//cout << "CheckSpecialDay() => End: " << end << endl;
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struct tm start_tm = Utilities::DateToStructTm(start.c_str());
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//cout << "CheckSpecialDay() => Start: " << asctime(&start_tm) << endl;
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struct tm end_tm = Utilities::DateToStructTm(end.c_str());
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//cout << "CheckSpecialDay() => End: " << asctime(&end_tm) << endl;
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if (repeat_every_year <= 0)
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{
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//cout << "CheckSpecialDay() => Repeat every year is: 0" << endl;
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if ((current_tm.tm_year == start_tm.tm_year) && (current_tm.tm_year == end_tm.tm_year))
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{
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if ((current_tm.tm_mon >= start_tm.tm_mon) && (current_tm.tm_mon <= end_tm.tm_mon))
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{
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//cout << "CheckSpecialDay() => Month is in range between start and end" << endl;
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if ((current_tm.tm_mday >= start_tm.tm_mday) && (current_tm.tm_mday <= end_tm.tm_mday))
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{
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LOG_DEBUG("CheckSpecialDay() => SPECIAL DAY");
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*specialDayId = spec_days_itr->second.ped_id;
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*specialDayPrice = cfg->SpecialDaysWorktime.find(*specialDayId)->second.pedwt_price;
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return true;
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}
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}
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}
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}
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else
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{
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if ((current_tm.tm_mon >= start_tm.tm_mon) && (current_tm.tm_mon <= end_tm.tm_mon))
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{
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//cout << "CheckSpecialDay() => Month is in range between start and end" << endl;
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if ((current_tm.tm_mday >= start_tm.tm_mday) && (current_tm.tm_mday <= end_tm.tm_mday))
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{
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LOG_DEBUG("CheckSpecialDay() => SPECIAL DAY");
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*specialDayId = spec_days_itr->second.ped_id;
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*specialDayPrice = cfg->SpecialDaysWorktime.find(*specialDayId)->second.pedwt_price;
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return true;
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}
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}
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}
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}
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//cout << "CheckSpecialDay() => NOT SPECIAL DAY" << endl;
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return false;
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}
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catch (...)
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{
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throw std::invalid_argument("CheckSpecialDay() => An error has occurred\n");
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return false;
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}
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}
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