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#!/usr/bin/env bash
set -euo pipefail
cd "$(dirname "$(realpath "$0")")"
source functions.sh
read_vars
if [[ ! -f lights.txt ]]; then
echo >&2 'First run:'
echo >&2 '$ ./get_lights.sh >lights.txt'
exit 1
fi
if [[ $# -eq 0 || ($1 = "-h" || $1 = "--help") ]]; then
echo >&2 "Usage: $0 <light name> [commands...]"
echo >&2 "The light name is case-insensitive and may be any unambiguous substring of the full name."
echo >&2 "Commands:"
echo >&2 "- on: turn on the light"
echo >&2 "- off: turn off the light"
echo >&2 "- switch <n>: turn on if n=1, off if n=0"
echo >&2 "- br <n>: set brightness; n in [0, 100]"
[[ $# -eq 0 ]] && exit 1
exit 0
fi
namesubstr=$1
matches=$(cut -d' ' -f2- lights.txt | grep -niF "$namesubstr" | cut -d: -f1 || true)
[[ -z $matches ]] && { echo >&2 "Light not found"; exit 1; }
[[ $(wc -l <<<"$matches") -gt 1 ]] && { echo >&2 "Multiple lights matched, name must be unambiguous"; exit 1; }
lightid=$(sed -n "$matches s/ .*//p" <lights.txt)
shift
commandstr="{}"
while [[ $# -gt 0 ]]; do
case "$1" in
on) commandstr="$commandstr * {on:{on:true}}"; shift ;;
off) commandstr="$commandstr * {on:{on:false}}"; shift ;;
switch)
[[ $# -lt 2 ]] && { echo >&2 "Not enough arguments to 'switch' command"; exit 1; }
if [[ $2 = '1' ]]; then commandstr="$commandstr * {on:{on:true}}"
elif [[ $2 = '0' ]]; then commandstr="$commandstr * {on:{on:false}}"
else echo >&2 "Invalid argument to 'switch' command"; exit 1
fi
shift 2
;;
br)
[[ $# -lt 2 ]] && { echo >&2 "Not enough arguments to 'br' command"; exit 1; }
commandstr="$commandstr * {dimming:{brightness:$2}}"
shift 2
;;
*)
echo >&2 "Unrecognised command: '$1'"
exit 1
esac
done
hue_request resource/light/"$lightid" PUT "$(jq "$commandstr" <<<0)" >/dev/null
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