#!/bin/bash
######################################################################
#Copyright (C) 2018 Kris Occhipinti
#https://filmsbykris.com

#Display Days until Christmas Version #2

#This program is free software: you can redistribute it and/or modify
#it under the terms of the GNU General Public License as published by
#the Free Software Foundation, either version 3 of the License, or
#(at your option) any later version.

#This program is distributed in the hope that it will be useful,
#but WITHOUT ANY WARRANTY; without even the implied warranty of
#MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
#GNU General Public License for more details.

#You should have received a copy of the GNU General Public License
#along with this program. If not, see <http://www.gnu.org/licenses/>.
######################################################################

#check if user wants to use toilet
#toilet needs to be installed
#sudo apt install toilet
if [ "$1" = "toilet" ]
then
toilet=true
fi

function main(){
clear
echo "Calculating Days Until Christmas..."
sleep 1
while [ 1 ]
do
clear;
getTime
pr_output
sleep 1;
done

exit 0
}

function pr_output(){
if [ $toilet ]
then
toilet --filter metal -f smblock "$output" --filter border:metal
else
echo "$output"
fi
}

function getTime(){
#removed year from christmas date to get this years christmas
seconds="$(($(date --date "12/25" +%s) - $(date +%s)))";
output="$(printf "%02d Days %02d Hours %02d Minutes and %02d Seconds Until Christmas\n"\
"$((seconds/86400))" "$((seconds/3600%24))" "$((seconds/60%60))" "$((seconds%60))")"
}

main