time.h

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#ifndef MAXOS_COMMON_TIME_H
#define MAXOS_COMMON_TIME_H
 
#include <cstdint>
 
 
namespace MaxOS::common {
 
    typedef struct Time {
 
        uint16_t year;              
        uint8_t month;              
        uint8_t day;                
 
        uint8_t hour;               
        uint8_t minute;             
        uint8_t second;             
 
        [[nodiscard]] bool is_leap_year() const {
            return (year % 4 == 0 && year % 100 != 0) || year % 400 == 0;
        }
 
    } time_t;
 
    static const char* Months[] = {
            "January",
            "February",
            "March",
            "April",
            "May",
            "June",
            "July",
            "August",
            "September",
            "October",
            "November",
            "December"
    };
 
    static const char* Days[] = {
            "Sunday",
            "Monday",
            "Tuesday",
            "Wednesday",
            "Thursday",
            "Friday",
            "Saturday"
    };
 
    constexpr uint8_t DAYS_IN_MONTH[] = {
            31, // January
            28, // February
            31, // March
            30, // April
            31, // May
            30, // June
            31, // July
            31, // August
            30, // September
            31, // October
            30, // November
            31  // December
    };
 
    constexpr uint16_t DAYS_PER_YEAR = 365;         
    constexpr uint16_t DAYS_PER_LEAP_YEAR = 366;    
 
    static uint64_t time_to_epoch(Time time) {
        uint64_t epoch = 0;
 
        // Add the number of years
        for(uint16_t year = 1970; year < time.year; year++)
            epoch += (time.is_leap_year() ? DAYS_PER_LEAP_YEAR : DAYS_PER_YEAR);
 
 
        // Add the number of days in the current year
        for(uint8_t month = 0; month < time.month - 1; month++)
            epoch += DAYS_IN_MONTH[month];
 
        // Add the number of days in the current month
        epoch += time.day - 1;
 
        // Add the number of hours
        epoch *= 24;
        epoch += time.hour;
 
        // Add the number of minutes
        epoch *= 60;
        epoch += time.minute;
 
        // Add the number of seconds
        epoch *= 60;
        epoch += time.second;
 
        return epoch;
    }
 
}
 
 
#endif //MAXOS_COMMON_TIME_H