raspi osmc setup and autoconnect to alsa:default bt speaker

btaudioautoconnect.sh

#!/bin/bash

# tweaked from https://gist.github.com/mitchese/7a3373132f94fc946b1cbeb2b04e7818

USER="kodi-user"
PASSWORD="kodi-pass"
PORT="8080"
ANALOGUEDEVICE="ALSA:sysdefault:CARD=Headphones"
BTDEVICE="ALSA:bluealsa"
STAT="NA"

SetAnalogueOutput()
{
        curl -u ${USER}:${PASSWORD} -H "Content-type: application/json" -X POST -d "{\"jsonrpc\":\"2.0\",\"method\":\"Settings.SetSettingValue\", \"params\":{\"setting\":\"audiooutput.audiodevice\",\"value\":\"${ANALOGUEDEVICE}\"},\"id\":1}"  http://127.0.0.1:${PORT}/jsonr
}

SetBTOutput()
{
        curl -u ${USER}:${PASSWORD} -H "Content-type: application/json" -X POST -d "{\"jsonrpc\":\"2.0\",\"method\":\"Settings.SetSettingValue\", \"params\":{\"setting\":\"audiooutput.audiodevice\",\"value\":\"${BTDEVICE}\"},\"id\":1}"  http://127.0.0.1:${PORT}/jsonrpc > /
}

CheckDevice()
{
        boundbt=`bluetoothctl devices | grep Device | awk '{print $2}'`
        devicename=`bluetoothctl devices | grep Device | cut -d" " -f3-`

        if [ ! -z $boundbt ] ; then
#               echo "if"
                connectedbt=`hcitool con | tail -1 | awk '{print $3}'`
                if [ "$connectedbt" = "$boundbt" ] ; then
#                       echo "bt"
                        [ $STAT != "BT" ] && SetBTOutput
                        STAT="BT"
                else
#                       echo "analog"
                        [ $STAT != "HDMI" ] && SetAnalogueOutput
                        STAT="HDMI"
                fi
        fi
}

while true ;
do
        CheckDevice
        sleep 10
done

osmc_setup.sh

sudo apt-get install -y a2dp-app-osmc alsa-utils

# copy btaudioautoconnect.sh and
# run from /etc/rc.local with &.