}
// Calculate the progression time for a log, taking into account the presence of multi-day logs.
fn prog_time_for(fights: &Vec<Fight>) -> i32 {
    // no fights, no prog
    if fights.len() < 2 {
        return 0;
    }
    let basic = fights.last().expect("there to be a fight").end_time - fights[0].start_time;
    if Duration::milliseconds(basic as i64) <= Duration::hours(8) {
        // fast path. regular-ass single-day log
        basic
    } else {
        debug!(
            "encountered a log that is {}ms log. assuming multi-day",
            basic
        );
        let mut time = Duration::zero();
        let mut prev = &fights[0];
        for fight in &fights[1..] {
            let start_delta = Duration::milliseconds((fight.start_time - prev.start_time) as i64);
            if start_delta >= Duration::hours(8) {
                // split here. ignore gap between current start time and previous
                debug!(
                    "splitting log after fight {} (gap: {})",
                    prev.id, start_delta
                );
                time = time + Duration::milliseconds((prev.end_time - prev.start_time) as i64);
            } else {
                // not splitting. use the gap
                time = time + start_delta;
            }
            prev = fight;
        }
        time = time + Duration::milliseconds((prev.end_time - prev.start_time) as i64);
        time.num_milliseconds() as i32
    }

        prog_time += fights.last().expect("there to be a fight").end_time - fights[0].start_time;

        prog_time += prog_time_for(fights);

  {
    date: '2021-03-02T18:01-05:00',
    messages: ['Multi-day logs will no longer exaggerate progression time and are now correctly split across multiple days when charted.']
  },