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#
# Example file for working with date information
#


# telling python interpreter to load this library called datetime
# but ONLY load certain sub-topics like date, time, datetime
from datetime import date
from datetime import time
from datetime import datetime


def main():
  ## DATE OBJECTS
  # Get today's date from the simple today() method from the date class
  today = date.today()
  print("Today's date is", today)


  # print out the date's individual components
  print("Date components:", today.day, today.month, today.year)

  
  # retrieve today's weekday (0=Monday, 6=Sunday)
  print("Today's weekday number is", today.weekday())
  days = ["Monday", "Tuesday", "Wednesday", "Thursday", "Friday"]
  print("Which is a:", days[today.weekday()])

  
  ## DATETIME OBJECTS
  # Get today's date from the datetime class
  today = datetime.now()
  print("The current date and time is:", today)
  # Get the current time
  t = datetime.time(datetime.now())
  print(t)

  
if __name__ == "__main__":
  main();
  

#
# Example file for formatting time and date output
#

from datetime import datetime

def main():
  # Times and dates can be formatted using a set of predefined string
  # control codes 
  now = datetime.now()

  #### Date Formatting ####
  # %y/%Y - Year
  # %a/%A - weekday
  # %b/%B - month
  # %d - day of month
  print(now.strftime("%a, %d %B, %y"))

  # %c - locale's date and time
  # %x - locale's date
  # %X - locale's time
  print(now.strftime("Local date and time: %c"))
  print(now.strftime("Local date: %x"))
  print(now.strftime("Local time: %X"))

  #### Time Formatting ####
  # %I/%H - 12/24 Hour
  # %M - minute
  # %S - second
  # %p - locale's AM/PM
  print(now.strftime("Current time: %I:%M:%S %p"))
  print(now.strftime("24-hour time: %H:%M"))




if __name__ == "__main__":
  main();

#
# Example file for working with timedelta objects
#

from datetime import date
from datetime import time
from datetime import datetime
from datetime import timedelta # a span of time, used to perform time based calculations


# construct a basic timedelta and print it
print(timedelta(days=365, hours=5, minutes=1))

# print today's date
now = datetime.now()
print("today is: " + str(now))

# print today's date one year from now
print("one year from now it will be: " + str(now + timedelta(days=365)))

# create a timedelta that uses more than one argument
print("In 2 days and 3 weeks, it will be " + str(now + timedelta(days=2, weeks=3)))

# calculate the date 1 week ago, formatted as a string
t = datetime.now() - timedelta(weeks=1)
s = t.strftime("%A %B %d, %Y")
print("1 week ago it was " + s)


### How many days until April Fools' Day?
today = date.today()

# constructing a date object by passing the year, month and then day
afd = date(today.year, 4, 1)


# use date comparison to see if April Fool's has already gone for this year
if (afd < today):
    print("April Fool's Day already went by %d days ago" %((today-afd).days))
    # if it has, use the replace() function to get the date for next year
    afd = afd.replace(year=today.year+1)

# Now calculate the amount of time until April Fool's Day  
time_to_afd = afd-today  # creates a time delta in which you can access .days method to get the number of days
print("It's just ", time_to_afd.days, " days until April Fool's Day!")