busy

#!/bin/bash -e

# Turn on a busy light.

usage() {
    echo "usage: ${0##*/} [color] [options]" 1>&2
    echo "" 1>&2
    echo "Turn on a busy light." 1>&2
    echo ""
    echo "options:"
    echo " -h or --help shows usage help" 1>&2
    exit 1
}

if echo "$*" | grep -Eq -- '--help\b|-h\b'; then
    usage
fi

# shellcheck source=.hue_control
# shellcheck disable=SC1091
source "$HOME/.hue_control" || echo "$(tput bold)error: ~/.hue_control not installed!$(tput sgr0)" >&2

release() {
    hue_set_color green
}

trap release EXIT

COLOR="${1:-red}"
COLORS=("$@")
CLEN="${#COLORS[@]}"

if [[ $CLEN -gt 1 ]]; then
    C=0
    while true; do
        COLOR="${COLORS[$C]}"
        hue_set_busy "$COLOR"
        C=$(((C + 1) % CLEN))
        sleep .5
    done
fi

while true; do
    if ! hue_is_busy; then
        hue_set_busy "$COLOR"
    fi
    sleep 10
done