bluetooth_listener.sh

#!/bin/sh

status=${1}
echo $status
KODI_URL="http://kodi@le.lan:8080/jsonrpc"
#set -x
_get_audio_device () {
	curl -s -H "Content-type: application/json" \
			--data-binary '{ "jsonrpc"	: "2.0", 
					 "params"	: { "setting": "audiooutput.audiodevice" },
					 "method"	: "Settings.GetSettingValue",
					 "id"		: 1 }'  \
			${KODI_URL}

}

_set_audio_device () {
	curl -s -H "Content-type: application/json" \
			--data-binary '{ "jsonrpc"	: "2.0", 
					 "method"	: "Settings.SetSettingValue", 
					 "params"	: { "setting"	: "audiooutput.audiodevice", 
					 "value"	: "'"${1}"'" },
					 "id"		: 1 }'  \
			${KODI_URL}
}

_set_mute_kodi () {
	curl -s -H "Content-type: application/json" \
			--data-binary '{ "jsonrpc"	: "2.0", 
					 "params"	: { "mute" : "toggle" },
					 "method"	: "Application.SetMute", 
					 "id"		: 1 }'  \
			${KODI_URL}
}

_get_mute_kodi () {
	curl -s -H "Content-type: application/json" \
			--data-binary '{ "jsonrpc"	: "2.0", 
					 "params" 	: { "properties" : [ "muted" ] },
					 "method"	: "Application.GetProperties",
					 "id"		: 1 }'  \
			${KODI_URL}
}

_send_kodi_notification () {
	curl -s -H "Content-type: application/json" \
			--data-binary '{ "jsonrpc"	: "2.0",
					 "params"	: { "title"		: "Audio" , 
					 "message"	: "'"${1}"'" },
					 "method"	: "GUI.ShowNotification",
					 "id"		: 1 }' \
			${KODI_URL}
}

_process () {
	if [ ! -z $status ]; then
		case $status in
			'disconnected')
			echo "HDMI"
			new_device="ALSA:hdmi:CARD=AMLM8AUDIO,DEV=0"
			_set_audio_device "${new_device}"
			_send_kodi_notification "HDMI"
			mute_state=$(_get_mute_kodi | jq -sr '.[]|.result.muted')
			if [ $mute_state = "false" ];then 
				_set_mute_kodi
			fi
			;;
			'connected')
			echo "PULSE"
			new_device="PULSE:Default"
			_set_audio_device "${new_device}"
			_send_kodi_notification "PULSE"
			;;
		esac
	fi
}

_process