Terminal Pomodoro Timer (OSX) Bash Script

pomodoro

#!/bin/bash
#
# Small Pomodoro Timer
# Based on https://en.wikipedia.org/wiki/Pomodoro_Technique
# Requires terminal-notifier for OSX
# Author: florian@whnr.de

# All times in minutes
work=30;
break_small=5;
break_big=20;
# Number of work periods
work_periods=3;

let duration="$work_periods*$work+($work_periods-1)*$break_small+$break_big";

echo "                                  _                 ";
echo "                                 | |                ";
echo "  _ __   ___  _ __ ___   ___   __| | ___  _ __ ___  ";
echo " | '_ \ / _ \| '_ \` _ \ / _ \ / _\` |/ _ \| '__/ _ \ ";
echo " | |_) | (_) | | | | | | (_) | (_| | (_) | | | (_) |";
echo " | .__/ \___/|_| |_| |_|\___/ \__,_|\___/|_|  \___/ ";
echo " | |                                                ";
echo " |_|                                                ";
echo "";
echo " Work shedule for the next $duration minutes:";
echo "   - $work_periods work periods of $work minutes each";
echo "   - Small break of $break_small minutes in between";
echo "   - And a big $break_big minute break at the end";
echo "";

# Verbose commandline countdown with with label
# timecount $time_in_minutes $name_of_the_countdown
timecount(){
    min=$1
    name=$2
    sec=0
    while [ $min -ge 0 ]; do
        while [ $sec -ge 0 ]; do
            echo -ne "  $name for $min min $sec sec\033[0K\r"
            sec=$((sec-1))
        sleep 1
        done
        sec=59
        min=$((min-1))
    done
}

# The pomodoro procedure
while [ $work_periods -ge 1 ]; do
    timecount $work "Work"
    if [ $work_periods -ge 2 ]; then
        terminal-notifier -remove "pomodoro" > /dev/null
        terminal-notifier -group "pomodoro" -title "Pomodoro break" -message "Work ist done! A $break_small min break starts"
        timecount $break_small "Small Break"
        terminal-notifier -remove "pomodoro" > /dev/null
        terminal-notifier -group "pomodoro" -title "Pomodoro break over" -message "The small break is over. Start the next in the terminal!"
        echo -ne "  Press any key for the next pomodoro!\033[0K\r";
        read -n 1 -s
    else
        terminal-notifier -remove "pomodoro" > /dev/null
        terminal-notifier -group "pomodoro" -title "Pomodoro break" -message "Work ist done! A large $break_big min break starts"
        timecount $break_big "Large Break"
        terminal-notifier -remove "pomodoro" > /dev/null
        terminal-notifier -group "pomodoro" -title "Pomodoro Session is over" -message "This Session is over. Ready for a new one? Run the script!"
        echo "  You are done! Let's start another session!";
    fi
    work_periods=$((work_periods-1))
done