sergutscripts/timer at master · sergutsan/sergutscripts · GitHub

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#!/bin/bash
MSG=""
TITLE_PREFIX=""
MINUTES=0 # Minutes for the timer
SECONDS=0 # Seconds for the timer
PAUSE=60  # Time between updates. Default: 60"
PRINT_SECONDS=false

# Input: number of seconds left
print_time_left() {
  if [ ${PRINT_SECONDS} = true ]; then
    print_minutes_seconds $1
  else
    print_only_minutes $1
  fi
}

print_only_minutes() {
  if [ $1 -ge 60 ]; then
    echo "$(($1/60))' left..."
  else
    echo "$1\" left..."
  fi
}

print_minutes_seconds() {
  MINUTES=$(($1/60))
  SECONDS=$(($1-60*MINUTES))
  if [ $MINUTES -lt 1 ]; then
    echo "$SECONDS\" left..."
  else
    echo "$MINUTES' $SECONDS\" left..."
  fi
}

set_message() {
  MSG="$1"
}

set_title_prefix() {
  TITLE_PREFIX="$1"
}

set_minutes() {
  MINUTES=$1
}

set_pause() {
  PAUSE=$1
  if [ $PAUSE -lt 60 ]; then
    PRINT_SECONDS=true
  fi
}

set_seconds() {
  SECONDS=$1
}

clear_window_title() {
  echo -en "\033]2;Terminal\007"
}

set_window_title() {
  echo -en "\033]2;$1 left\007"
}

usage() {
  echo "USAGE: timer <[-m <minutes>] | [-s <seconds>]> [-p <pause in seconds>] [-t text] [-tp <title_prefix>]"
  exit
}

while [ "$1" ]; do
  if [ -z "$2" ]; then
    usage
  fi
  case $1 in
    "-m")
      set_minutes $2;
      shift 2;
      ;;
    "-p")
      set_pause $2;
      shift 2;
      ;;
    "-s")
      set_seconds $2;
      shift 2;
      ;;
    "-t")
      set_message "$2"
      shift 2;
      ;;
    "-tp")
      set_title_prefix "$2"
      shift 2;
      ;;
    *)
      usage
      ;;
  esac
done

if [ $MINUTES -eq 0 -a $SECONDS -eq 0 ]; then
  usage
else
  TIME_LEFT=$((MINUTES*60+SECONDS))
fi

set_window_title
# echo "Timer running for $MINUTES', $SECONDS\"..."
while [ ${TIME_LEFT} -gt 0 ] ; do
  print_time_left $TIME_LEFT
  set_window_title "${TITLE_PREFIX}$((TIME_LEFT/60))'"
  if [ $PAUSE -gt $TIME_LEFT ]; then
    PAUSE=$TIME_LEFT
  fi
  sleep $PAUSE;
  TIME_LEFT=$((TIME_LEFT - PAUSE))
done
gnome-terminal -e "say_THE_END $MSG" --geometry 120x30+50+50
clear_window_title