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Handle birthdays where the year isn't known

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Edward Betts 2023-12-01 11:08:45 +00:00
parent 68b34f7973
commit 8cc8e3f9d3
1 changed files with 13 additions and 4 deletions
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13
agenda/birthday.py
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@ -6,15 +6,20 @@ import yaml
from .types import Event
YEAR_NOT_KNOWN = 1900
def next_birthday(from_date: date, birth_date: date) -> tuple[date, int]:
def next_birthday(from_date: date, birth_date: date) -> tuple[date, int | None]:
"""Calculate the date of the next birthday based on a given birth date."""
next_birthday_date = birth_date.replace(year=from_date.year)
if from_date > next_birthday_date:
next_birthday_date = birth_date.replace(year=from_date.year + 1)
if birth_date.year != YEAR_NOT_KNOWN:
age_at_next_birthday = next_birthday_date.year - birth_date.year
else:
age_at_next_birthday = None
return next_birthday_date, age_at_next_birthday
@ -26,14 +31,18 @@ def get_birthdays(from_date: date, filepath: str) -> list[Event]:
entities = yaml.safe_load(f)
for entity in entities:
if "year" in entity["birthday"]:
birthday = date(**entity["birthday"])
else:
birthday = date(year=YEAR_NOT_KNOWN, **entity["birthday"])
bday, age = next_birthday(from_date, birthday)
for offset in range(2):
display_age = f"aged {age + offset}" if age is not None else "age unknown"
events.append(
Event(
date=bday.replace(year=bday.year + offset),
name="birthday",
title=f'🎈 {entity["label"]} (aged {age + offset})',
title=f'🎈 {entity["label"]} ({display_age})',
)
)