#!/bin/sh

### FUNCTIONS
notif() { 
    herbe "pomo" "$1" &
    sleep 1
    pkill -SIGUSR1 herbe
}
logn () { >&2 printf '%s\n' "$@"; }
log () { >&2 printf '%s' "$@"; }

# Plays ringing sound
# Then wait for user input to start/end the break
player_command()
{
	>&2 printf ' > '
	[ -r "$ringSound" ] || PLAYER=""
	case "$PLAYER" in
	    mpv) mpv --loop --msg-level=all=no "$ringSound" ;;
	    "") head -n 1;;
	    *) $PLAYER "$ringSound" ;;
	esac
}

# $1: time in minutes
# $2: msg for notification
ring_ring()
{
	logn "$(date '+%R') B $round"
	player_command
    herbe "pomo" "$2" &
    sleep "${1}m"
	player_command
	>&2 printf '\n'
}

### PROGRAM
main()
{
	round="${1-0}"
	case "$round" in
		0|1|2|3) ;;
		ring) ;;
		*) logn "Invalid \$round value." && exit 1 ;;
	esac

	ringSound="${XDG_DATA_HOME:-$HOME/.local/share}"/pomo/ring.aac
	[ -r "$ringSound" ] && logn "ring: $ringSound"

	if [ "$1" = "ring" ]
	then
	    player_command
	    exit
	fi

	# Countdown
	for msg in "three" "two" "one"
	do notif "$msg"
	done

	while true
	do
		notif "START"
		logn "$(date '+%R') S $round"
		sleep 25m
		if [ "$round" -eq 3 ]
		then
			ring_ring 20 "GIGA BREAK TIME"
			round=0
		else
			ring_ring 5 "BREAK TIME"
			round=$((round+1))
		fi
	done
}

trap 'exit 1' INT
main "$@"