// import 'dart:core' show ab;
import 'dart:math' show log, max, pow;

import 'package:lemmy_api_client/lemmy_api_client.dart';

double _calculateHotRank(int score, DateTime time) {
  final elapsed = (time.difference(DateTime.now()).inMilliseconds).abs() / 36e5;

  // log instead of log10 in web version. does log == log10?
  return (10000 * log(max(1, 3 + score))) / pow(elapsed + 2, 1.8);
}

extension CommentHotRank on CommentView {
  double get computedHotRank => _calculateHotRank(score, published);
}