Cake days are 1 day off on leap years

[SorteKanin]

Requirements

• This is a bug report, and if not, please post to https://lemmy.ml/c/lemmy_support instead.
• Please check to see if this issue already exists.
• It's a single bug. Do not report multiple bugs in one issue.
• It's a frontend issue, not a backend issue; Otherwise please create an issue on the backend repo instead.

Summary

The current implementation:

import { parseISO, getYear, getDayOfYear } from "date-fns";

export default function isCakeDay(published: string): boolean {
  const createDate = parseISO(published);
  const currentDate = new Date();

  return (
    getDayOfYear(createDate) === getDayOfYear(currentDate) &&
    getYear(createDate) !== getYear(currentDate)
  );
}

Unfortunately, getDayOfYear counts... well, the day of the year. So on a leap year, this will be 1 day off what is expected. I noticed this as Feddit.dk claims that it is my cake day today, even though it is actually tomorrow. But of course, 2024 is a leap year, so it's 1 day off because of the 29th of February.

Steps to Reproduce

Well it's hard to reproduce as you need to find a user with a cake day tomorrow, but it should be easy enough to understand the bug from the code.

Technical Details

N/A

Lemmy Instance Version

0.19.3

Lemmy Instance URL

https://feddit.dk/

[Die4Ever]

It sounds silly but I think this should probably be fixed for 0.19.4 so that people are updated before all the cake days in June start, there will be many first cake days