Be able to customize the message of the Relative Time (timeago) pipe

[Jukien]

Description
Depending on the application and the usage, we want to change the message displayed for the relative time.
For my case, I would like different messages like this:

if (seconds < 30) { // less than 30 seconds ago will show as 'Just now'
  return "à l'instant"; // return 'Just now';
} else if (seconds < 60) {
  return "il y a moins d'une minute"; // return 'Less than a minute'
} else if (seconds < 120) {
  return 'il y a 1 minute'; // return 'A minute ago'
} else if (seconds < intervals.hour) {
  return 'il y a ' + new DatePipe('fr-FR').transform(ms, 'm') + ' minutes'; // return 'x minutes ago'
} else if (seconds <= intervals.day) {
  return "aujourd'hui à " + new DatePipe('fr-FR').transform(ms, 'H:mm'); // return 'today at hh:mm'
} else if (seconds <= intervals.day * 2) {
  return "hier à " + new DatePipe('fr-FR').transform(ms, 'H:mm'); // return 'yesterday at hh:mm'
} else {
  if (new Date().getFullYear() === new Date(ms).getFullYear()) {
    return "le " + new DatePipe('fr-FR').transform(ms, 'd MMM à H:mm'); // return 'on 3 July at 15:02' (example)
  } else {
    return "le " + new DatePipe('fr-FR').transform(ms, 'd MMM y à H:mm'); // return 'on 2 March 2023 at 12:40' (example)
  }
}

Proposed Solution
I don't know how to exactly do this but we can imagine a class to implement custom messages like my code above where we have milliseconds in parameter and a string to return.

Alternatives considered
Have properties like:

message.lessThan30secondes = "Just now"
message.lessThan1hour = "{time} minutes ago"
message.lessThan1day = "today at {time}"

But I think there will be limitations with this solution, if we want to change the format of time and date for example.

[json-derulo]

Thanks for opening the issue. I understand what you are looking for, however I'm afraid that it doesn't align with the strategy of this package. The idea is that the browser handles locale data, which allows supporting a large number of languages out of the box. What you are asking for only works for a single language, or needs another i18n / l10n solution. Also injecting date formats into the string looks quite challenging.

I would suggest to implement a custom pipe. You can use this pipe as a base.

[Jukien]

Hi @json-derulo, thank you for your response. I understand. I have already a custom pipe for this but I searched for an improved one. Your pipe can refresh automatically the age ago which my pipe doesn't do that for now. But I will look into your code to see how you do it ;)
For the i18n solution, we could implement for each language depending one the needs.

Have a nice day!