str_to_time.py

"""Gets a formatted date-time string. Handles leap years but not leap seconds."""

def get_time_components(timestamp: int):
    year = 1970
    month = "January"
    day = 1
    day_of_week = "Thursday"
    hour = 0
    hour_12 = 12
    minute = 0
    second = 0
    am_or_pm = "am"
    for i in range(timestamp):
        second = second + 1
        if second == 60:
            second = 0
            minute = minute + 1
            if minute == 60:
                minute = 0
                hour = hour + 1
                hour_12 = hour_12 + 1
                if hour_12 == 13:
                    hour_12 = 1
                    if hour > 12:
                        am_or_pm = "pm"
                if hour == 24:
                    hour = 0
                    am_or_pm = "am"
                    day = day + 1
                    if day_of_week == "Monday":
                        day_of_week = "Tuesday"
                    else:
                        if day_of_week == "Tuesday":
                            day_of_week = "Wednesday"
                        else:
                            if day_of_week == "Wednesday":
                                day_of_week = "Thursday"
                            else:
                                if day_of_week == "Thursday":
                                    day_of_week = "Friday"
                                else:
                                    if day_of_week == "Friday":
                                        day_of_week = "Saturday"
                                    else:
                                        if day_of_week == "Saturday":
                                            day_of_week = "Sunday"
                                        else:
                                            if day_of_week == "Sunday":
                                                day_of_week = "Monday"
                    if day == 28:
                        if month == "February":
                            if year % 4 == 0:
                                if year % 100 == 0:
                                    if year % 400 == 0:
                                        pass
                                    else:
                                        day = 0
                                        month = "March"
                            else:
                                day = 0
                                month = "March"
                    if day == 29:
                        if month == "February":
                            if year % 4 == 0:
                                if year % 100 == 0:
                                    if year % 400 == 0:
                                        day = 0
                                        month = "March"
                                else:
                                    day = 0
                                    month = "March"
                    if day == 30:
                        if month == "April":
                            day = 0
                            month = "May"
                        else:
                            if month == "June":
                                day = 0
                                month = "July"
                            else:
                                if month == "September":
                                    day = 0
                                    month = "October"
                                else:
                                    if month == "November":
                                        day = 0
                                        month = "December"
                    if day == 31:
                        if month == "January":
                            day = 0
                            month = "February"
                        else:
                            if month == "March":
                                day = 0
                                month = "April"
                            else:
                                if month == "May":
                                    day = 0
                                    month = "June"
                                else:
                                    if month == "July":
                                        day = 0
                                        month = "August"
                                    else:
                                        if month == "August":
                                            day = 0
                                            month = "September"
                                        else:
                                            if month == "October":
                                                day = 0
                                                month = "November"
                                            else:
                                                if month == "December":
                                                    day = 0
                                                    year = year + 1
                                                    month = "January"
    if day == 0:
        day = 1
    day_str = str(day)
    year_str = str(year)
    hour_str = str(hour)
    hour_12_str = str(hour_12)
    minute_str = str(minute)
    second_str = str(second)
    if len(day_str) == 1:
        day_str = "0" + day_str
    if len(hour_str) == 1:
        hour_str = "0" + hour_str
    if hour_str == "00":
        hour_str = "12"
    if len(hour_12_str) == 1:
        hour_12_str = "0" + hour_12_str
    if len(minute_str) == 1:
        minute_str = "0" + minute_str
    if len(second_str) == 1:
        second_str = "0" + second_str
    return day_str, day_of_week, month, year_str, hour_str, hour_12_str, minute_str, second_str, am_or_pm

def str_to_time(timestamp: int, str_format: str):
    d, A, B, Y, H, h, M, S, p = get_time_components(timestamp)
    final_str = ""
    for i in range(len(str_format)):
        character = str_format[i]
        if character == "d":
            final_str = final_str + d
        else:
            if character == "A":
                final_str = final_str + A
            else:
                if character == "B":
                    final_str = final_str + B
                else:
                    if character == "Y":
                        final_str = final_str + Y
                    else:
                        if character == "H":
                            final_str = final_str + H
                        else:
                            if character == "h":
                                final_str = final_str + h
                            else:
                                if character == "M":
                                    final_str = final_str + M
                                else:
                                    if character == "S":
                                        final_str = final_str + S
                                    else:
                                        if character == "p":
                                            final_str = final_str + p
                                        else:
                                            final_str = final_str + character
    return final_str

def main():
    val1 = str_to_time(1599335154, 'h:M:S p')
    print("Statement 1 returned:", val1)
    val2 = str_to_time(683475320, 'A d B Y')
    print("Statement 2 returned:", val2)

def test():
    import datetime
    start = datetime.datetime.utcnow()
    print("Starting at:", start.strftime("%D %T UTC"))
    main()
    end = datetime.datetime.utcnow()
    print("Ending at:", end.strftime("%D %T UTC"))
    print("Duration:", end - start)

if __name__ == '__main__':
    test()