#!/bin/bash

# Set Parameters
Name='<Name>'
domoticzserverip='127.0.0.1:8080'
IDX='<Dev-IDX>'
IP='<IPaddr>'
bluetoothmac='<BT-Mac>'

echo $$ > /var/log/pid/"$Name".pid

while [ 1 ]
do
# First network ping attempt
fping -c5 -b 32 -t1000 $IP > /dev/null 2>&1
if [ "$?" = 0 ] ; then
device="On"
technology="Online using: Wifi 1"
success="yes"
sleep 1
else
success="no"
fi

# First bluetooth ping attempt
if [[ $success != 'yes' ]]; then
bt1=$(l2ping -c5 -s32 -t1000 "$bluetoothmac" > /dev/null 2>&1 && echo "On" || echo "Off")
if [[ $bt1 == 'On' ]]; then
device="On"
technology="Online using: Bluetooth 1"
success="yes"
fi
fi

# Second network ping attempt
if [[ $success != 'yes' ]]; then
fping -c5 -b 32 -t1000 $IP > /dev/null 2>&1
if [ "$?" = 0 ] ; then
device="On"
technology="Online using: Wifi 2"
success="yes"
fi
fi

# Second bluetooth ping attempt
if [[ $success != 'yes' ]]; then
bt2=$(l2ping -c5 -s32 -t1000 "$bluetoothmac" > /dev/null 2>&1 && echo "On" || echo "Off")
if [[ $bt2 == 'On' ]]; then
device="On"
technology="Online using: Bluetooth 2"
success="yes"
fi
fi

# If the device is still offline, declare it for processing
if [[ $success != 'yes' ]]; then
technology="Offline"
device="Off"
fi

# Check Online / Offline state of Domoticz device
domoticzstatus=$(curl -s "http://"$domoticzserverip"/json.htm?type=devices&rid="$IDX"" | grep '"Data" :' | awk '{ print $3 }' | sed 's/[!@#\$%",^&*()]//g')
# Compare ping result to Domoticz device status
if [ "$device" = "$domoticzstatus" ] ; then
echo "Current status: $technology"
else
echo "Status desynchronized, resynchronizing..."
if [ "$device" = On ] ; then
echo "$Name" "set Online"
curl -s "http://"$domoticzserverip"/json.htm?type=command&param=switchlight&idx="$IDX"&switchcmd=On" 2>/dev/null 1>/dev/null
else
echo "$Name" "set Offline"
curl -s "http://"$domoticzserverip"/json.htm?type=command&param=switchlight&idx="$IDX"&switchcmd=Off" 2>/dev/null 1>/dev/null
fi
fi

done