c4wled.sh/wled
2024-08-02 08:18:32 +02:00

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#!/bin/sh
#
# Simpel command line tool to turn predefined wled instances on/off or switch
# presets.
#
# Author: Shy
# License: CC0
print_usage() {
echo "Usage: $0 [f(nordcenter)|w(ohnzimmer)] [on|off|1-17 (preset number)|dump]"
}
if test $# -ne 2; then
print_usage
exit 0
fi
# Parse host argument.
case "$1" in
f|fnordcenter)
wled_host='wled-fnordcenter.local'
;;
w|wohnzimmer)
wled_host='wled-wohnzimmer.local'
;;
*)
echo "Error: unknown host \"$1\"." >&2
print_usage
exit 1
;;
esac
# Parse and execute command argument.
case "$2" in
on)
api_resp=$(curl -s -4 --json '{"on":true}' "http://$wled_host/json")
;;
off)
api_resp=$(curl -s -4 --json '{"on":false}' "http://$wled_host/json")
;;
[1-9]|[1-9][0-7])
api_resp=$(curl -s -4 --json "{'on':true,'ps':$2}" "http://$wled_host/json")
;;
dump)
curl -s -4 -w '\n' "http://$wled_host/json"
exit 0
;;
*)
echo "Error: unknown command \"$2\"." >&2
print_usage
exit 1
;;
esac
# Check API responce. Should be {"success":true}.
if test "$(echo -n "$api_resp"|tr -c -d '[:alpha:]')" != 'successtrue'; then
echo "Error: unexpected responce from WLED API." >&2
exit 1
fi