Timer

#!/bin/bash

function quit()
{
    say "$1"
    kill $dialog_pid
    exit "$2"
}

function say()
{
    espeak -v english "$1" &
}

function enter()
{
    input_time=$(zenity --entry --title="Remit" --text="Enter time interval in minutes" --entry-text=30)
    if test "$?" -ne 0; then
        quit "Aborted!" 1
    fi
}

function display()
{
    remaining_time_in_minutes=$1
    if test $remaining_time_in_minutes -le 99; then
        formated_number=$(printf "%02d" $remaining_time_in_minutes)
        image_file_url="$image_directory_url/purple/$formated_number.png"
        yad --notification --image="$image_file_url" --timeout=60
    else
        number_of_hours=$((remaining_time_in_minutes / 60))
        remainder_in_minutes=$((remaining_time_in_minutes % 60))
        number_of_tens_of_minutes=$((remainder_in_minutes / 10))
        image_file_url="$image_directory_url/blue/$number_of_hours$number_of_tens_of_minutes.png"
        yad --notification --image="$image_file_url" --timeout=60
    fi
}

function announce()
{
    remaining_time_in_minutes=$1
    number_of_hours=$((remaining_time_in_minutes / 60))
    number_of_minutes=$((remaining_time_in_minutes % 60))

    case $number_of_hours in
        0)
            hour_word=""
            number_of_hours=""
            ;;
        1)
            hour_word="hour"
            ;;
        *)
            hour_word="hours"
    esac

    case $number_of_minutes in
        0)
            minute_word=""
            number_of_minutes=""
            ;;
        1)
            minute_word="minute"
            ;;
        *)
            minute_word="minutes"
    esac
    say "$number_of_hours $hour_word $number_of_minutes $minute_word left"
}

image_directory_url="/home/skab/Data/izobrazheniya/sortirovannyye/kompyuter/znachki/tsyfry"

enter
until [[ $input_time =~ ^[0-9]+$ ]]; do
    say "Wrong input format"
    enter
done

announce "$input_time"
announcement_time=$((input_time * 2 / 3))
current_time=$input_time

zenity --error --title="Remit" --text="Stop the timer" &
dialog_pid=$!
dialog_flag=$(wmctrl -l | grep "Remit")
until test "$dialog_flag"; do
    dialog_flag=$(wmctrl -l | grep "Remit")
done
wmctrl -r "Remit" -t 2

while test "$current_time" -gt 0; do
    if ! kill -0 $dialog_pid; then
        quit "Aborted" 1
    fi

    if test $current_time -eq $announcement_time; then
        announcement_time=$((announcement_time * 2 / 3))
        announce $current_time &
    fi
    display $current_time
    current_time=$((current_time - 1))
done

quit "Time's up!" 0