#!/bin/bash

#REQUIREMENTS
#Mobilinkd TNC 2 or 3
#Pat Winlink (Must already be configured for 2M Packet)
#Help Installing Pat - https://bit.ly/2m42271
#Xastir


#connect to mobilinkd device via bluetooth
#and set for bluetooth->serial connection
#for APRS using xastir or Packet Winlink using Pat
#special thanks to Rich for loaning me a TNC3 to test with
#KM4ACK 20190907
#Last edit 20191021 to add support for mobilinkd TNC3

clear

PAT=$(dpkg --get-selections | grep -w "pat")
XASTIR=$(dpkg --get-selections | grep -w "xastir")

#check if Pat is installed
if [ -z "$PAT" ]
then
echo "Pat was not found on the system"
echo "Pat Winlink is needed for this script"
echo "Please install Pat Winlink"
exit 0
else
echo "Pat Winlink found"
fi

#check if xastir is installed
if [ -z "$XASTIR" ]
then
echo "Xastir is not installed"
echo "Xastir is needed for this script"
echo "Please install Xastir"
exit 0
else
echo "Xastir found"
fi

#give user some feedback
echo "Please Wait"
echo "Scanning for device....this takes ~20 seconds"

#scan for bluetooth device and write to file
hcitool scan > $HOME/Desktop/scan.txt
echo "Scan complete"

#Decide if its a TNC 2 or 3
TNC2=$(cat $HOME/Desktop/scan.txt | grep -i TNC2)
TNC3=$(cat $HOME/Desktop/scan.txt | grep -i TNC3)
if [ -z "$TNC2" ]
then 
MAC=$(cat $HOME/Desktop/scan.txt | grep -i mobi | awk '{ print $1 }')
TNC=3
elif [ -z "$TNC3" ]
then
MAC=$(cat $HOME/Desktop/scan.txt | grep -i mobi | awk '{ print $1 }')
TNC=2
fi

#set correct connection commmand
if [ $TNC = "2" ]
then
CONNECT="sudo rfcomm connect /dev/rfcomm0 $MAC"
elif [ $TNC = "3" ]
then
CONNECT="sudo rfcomm connect /dev/rfcomm0 $MAC 6"
fi

#See if device was found and connect if found
if [ -z "$MAC" ]
then
      echo "Mobilinkd not found"
      rm $HOME/Desktop/scan.txt
else
      #stop things that might conflict
      sudo killall js8call kissattach direwolf >> /dev/null 2>&1
      echo "Mobilinkd TNC $TNC detected"
      echo "Creating the connection"
      rm $HOME/Desktop/scan.txt
      #create bluetooth->serial connection
      $CONNECT &
      sleep 5
      echo ""
      echo ""
      echo ""
      echo "If you choose to not start a Winlink Session"
      echo "Then APRS will be started instead"
      read -p  "Would you like to run a Winlink Session? y/n " winlink
		if [ $winlink = "y" ]
		then
		echo "starting kissattach for winlink"
		#create kissattach needed for winlink connections
      		sudo kissattach /dev/rfcomm0 wl2k &
		sleep 2
		#start pat winlink
		pat http
		sleep 1
		echo ""
		echo ""
		echo "Both services started and ready"
               	else
		echo ""
		echo ""
		echo "winlink not started"
		echo "Start xastir for APRS-Digipeater"
		sleep 1
		#start xastir
		sudo xastir
		fi
fi
exit 0