Simple bash script to implement a linux pomodoro timer

.pomodoro.sh

#!/bin/bash

# based on https://gist.github.com/bashbunni/3880e4194e3f800c4c494de286ebc1d7?permalink_comment_id=4445592#gistcomment-4445592
# Requires https://github.com/caarlos0/timer to be installed.
# Requires lolcat (should be a simple apt/yum install)
# spd-say should ship with your distro

declare -A pomo_options

pomo_options["work"]="25"
pomo_options["break"]="10"
pomo_options["short-break"]="5"

# pomodoro 5 will do a loop of 5 pomodoro sessions of 25 mins
pomodoro() {
  val=$1
  echo $val | lolcat
  timer ${pomo_options["$val"]}m
  spd-say "'$val' session done"
  notify-send --app-name=Pomodoro🍅 "'$val' session done 🍅"
}

start_pomodoro() {
  # Number of times to repeat the loop, default is 2
  if [ -n "$1" ] && [ "$1" -eq "$1" ] 2>/dev/null; then
    num_loops=$1
  else
    # Default loops
    num_loops=2
  fi

  for i in $(seq 1 $num_loops); do
    pomodoro "work"
    if [ $i -lt $num_loops ]; then
      pomodoro "short-break"
    fi
  done
}
change_pomo() {
  if [ -n "$1" ] && [ -n "$2" ]; then
    pomo_options["$1"]="$2"
    echo "The $1 time has been changed to $2 minutes"
  else
    echo "Please provide valid parameters: change_pomo [work/break] [time_in_minutes]"
  fi
}

alias doro=start_pomodoro
alias doro-work="pomodoro 'work'"
alias doro-break="pomodoro 'break'"
alias doro-short-break="pomodoro 'short-break'"
alias doro-change=change_pomo