start repository for mobilisis tariff-calculation

library/include/mobilisis/utilities.h

@@ -0,0 +1,72 @@
+#pragma once
+#include <cstring>
+#include <string.h>
+#include <ctime>
+#include <iostream>
+#include <cmath>
+
+#include "day_of_week.h"
+#include "configuration.h"
+#include "time_range.h"
+
+using namespace std;
+
+class Utilities {
+public:
+
+	/// <summary>
+	/// Get day of week from current date (Zeller's Algorithm), starting day is Sunday
+	/// </summary>
+	/// <param name="date"></param>
+	/// <returns></returns>
+	static DayOfWeek GetDayOfWeek(struct tm* tm);
+
+	/// <summary>
+	/// Date and time parse helper function
+	/// </summary>
+	/// <returns>Returns time (tm) structure</returns>
+	static struct tm DateTimeToStructTm(const char* dateTimeStr);
+
+	/// <summary>
+	/// Date parse helper function
+	/// </summary>
+	/// <returns>Returns time (tm) structure</returns>
+	static struct tm DateToStructTm(const char* dateStr);
+
+	/// <summary>
+	/// Time parse helper function
+	/// </summary>
+	/// <returns>Returns time (tm) structure</returns>
+	static struct tm TimeToStructTm(const char* timeStr, int year, int mon, int mday, int wday);
+
+	/// <summary>
+	/// Get current local time
+	/// </summary>
+	/// <returns>Returns time_t structure</returns>
+	static time_t GetCurrentLocalTime();
+
+	/// <summary>
+	/// Zeller's algorithm for determining day of week
+	/// </summary>
+	static int ZellersAlgorithm(int day, int month, int year);
+
+	/// <summary>
+	///  Checks if current datetime is in range between start and end month of parking worktime
+	/// </summary>
+	/// <param name="tariff_cfg"></param>
+	/// <param name="currentDateTime"></param>
+	/// <returns></returns>
+	static bool IsYearPeriodActive(Configuration* cfg, struct tm* currentDateTime);
+
+	/// <summary>
+	/// Check permissions
+	/// </summary>
+	static bool CheckSpecialDay(Configuration* cfg, const char* currentDateTimeStr, int* specialDayId, double* specialDayPrice);
+
+	/// <summary>
+	/// Calculates price per unit
+	/// </summary>
+	/// <param name="pra_price"></param>
+	/// <returns></returns>
+	static double CalculatePricePerUnit(double pra_price);
+};