aoc2020/scripts/countdown

#!/usr/bin/env bash
# 👆 hazel i hope you're happy

# challenges released in EST
export TZ="America/New_York"

function init_day {
    day=$(($(date +%-d)))

    if [ ! -f $day.rkt ]; then
        set -m
        scripts/get-challenge $day &
        sleep 1
        scripts/make-day $day
        fg
        return 1
    fi
    return 0
}

if init_day; then
    next_day=$((day + 1))
    next_timestamp=$(date --date="$(date +%Y-%m)-$next_day" +%s)
    while true; do
        secs_left=$((next_timestamp - $(date +%s)))
        if [ $secs_left -le 0 ]; then
            break
        fi
        printf "\r\x1b[K%s secs left..." "$secs_left"
        sleep 0.3
    done
    printf "\r\x1b[K"
    init_day
fi