kasa-wrapper

#!/bin/bash -e
#
# Wrapper script to call ./kasa binary with the right IP and json blob.  
#
# Usage example:
#   ./kasa-wrapper lamp on

usage() {
	echo "Usage:"
	echo "  $0 bulb-name {on|off}"
	exit 1
}

[ $# -eq 2 ] || usage

if [ ! -r ~/.bulbs ]; then
	echo "~/.bulbs does not exist.  Generating one."
	./kasa scan > ~/.bulbs
fi

IP=$(grep -i -- "-.*$1.*-" ~/.bulbs | cut -d' ' -f1)
if [ -z "$IP" ]; then
	echo "$1 not found in ~/.bulbs"
	exit 1
fi

case "$2" in
	on)  STATE=1 ;;
	off) STATE=0 ;;
	*)   usage   ;;
esac

HAS_RELAY=$(./kasa $IP '{"system":{"get_sysinfo":{}}}' | grep relay_state || true)
if [ -n "$HAS_RELAY" ]; then
	./kasa $IP '{"system":{"set_relay_state":{"state":'$STATE'}}}'
	./kasa $IP '{"system":{"get_sysinfo":{}}}' | jq .system.get_sysinfo | grep relay_state
else
	./kasa 192.168.86.32 '{"smartlife.iot.smartbulb.lightingservice":{"transition_light_state":{"ignore_default":1,"on_off":'$STATE',"transition_period":250}}}'
	./kasa $IP '{"system":{"get_sysinfo":{}}}' | jq .system.get_sysinfo.light_state
fi