Calendar

einkal.py

# SPDX-FileCopyrightText: 2023 Randall Bohn
# SPDX-License-Identifier: MIT
# a calendar for eInk display
# Blinka but not CircuitPython because of these imports:
from datetime import datetime
from datetime import timedelta

def pad_day(day:datetime) -> str:
  """
  Pads a single day with a leading space
  """
  value = day.strftime("%d")
  if len(value) == 1:
    value = " "+value
  return value
  
def week(delta:int, start:datetime|None=None) -> str:
  """
  returns the week calendar relative to the start date
  defaults to today
  """
  if start is None:
    start = datetime.today()
  today = start + timedelta(weeks=delta)
  day_of_week = today.isocalendar()[2] % 7
  sunday = (today - timedelta(days=day_of_week))
  current_week = [sunday + timedelta(days=i) for i in range(7)]
  current_week =  [pad_day(day) for day in current_week]
  current_week = "  ".join(current_week)
  if delta == 0 and day_of_week > 0:
    p = day_of_week * 4
    current_week = current_week[:p-1]+"!"+current_week[p:]
  return current_week

def month(m:datetime):
  result = ""
  result += week(-1, start=m) + " " + m.strftime('%Y %b') + "\n"
  result += week(0, start=m) + " " + m.strftime('%A') + "\n"
  result += week(1, start=m) + "\n"
  result += week(2, start=m) + "\n"
  return result

if __name__=="__main__":
  #print(month(datetime(2023,1,1)))
  print(month(datetime.today()))