#!/bin/bash

#script connects to bluetooth CAT device
#and starts FLRIG
#Special thanks to Brian, AB6D for sharing the bluetooth device me
#and contribution to the script!
#06FEB2021
#31MARCH2021 edit.

#===============================================
#To use this script, be sure it is placed in 
#the ~/bin directory on your build a pi system.
#Make it executable with chmod +x btflrig
#and run it with btflrig help
#===============================================

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#################################################################

CHANGELOG(){

31MARCH2021
	update script to ask user for name
	add version number
	bump version number to 2
}

VERSION=2
CONFIG=/home/pi/bin/.btflrig.mac
touch $CONFIG
source $CONFIG

#######################################
#	Generate Help File	      #
#######################################

HELP(){
clear
cat <<EOF>/run/user/$UID/btflrig.help

You can return to this help file at any time by running
"btflrig help" at the terminal. 

NAVIGATING THIS HELP FILE:
Press "q" to exit this help file
Press the space bar for the next screen of the help file.

SETUP:
Use the GUI bluetooth interface found next to the clock
to connect with the CAT bluetooth device (SPP-CA).
The passcode is "1234". You will get an error that indicates
no usable services are found on the device. This is
expected. 

Once the above is complete, run "btflrig scan" from the
terminal window. This will scan for the new CAT device
and obtain the MAC address which is needed so we can 
connect to the new device. Occasionally the first scan
will fail to obtain the MAC address of the new device and 
you will receive an error alert. Should this occur, run 
the "btflrig scan" command again.

Finally, run "btflrig menu" from the terminal window
and this script will create a menu shortcut that can
be used to start the bluetooth service and open FLRIG.

FLRIG SETUP:
In FLRIG, navigate to Config>Setup>transceiver.
On the configuration page choose your Yaesu rig from
the top drop down box labeled rig. In the next box, choose
"/dev/rfcomm7" which will be near the bottom of the list.
If /dev/rfcomm7 isn't found in the list, you can enter it
manually in the box. Now set the baud rate to 9600. Make sure
your the baud rate on your radio is also set to 9600. This
is labeled CAT rate in your radio menu. All other 
settings in FLRIG should be left at default. Now press
the "Init" button in the bottom right corner of the 
configuration window in FLRIG.

PAT MENU SETUP:
Open Pat Menu and click on Settings/Config. Now click
Create New Config File. Verify your call is correct. 
Change rig control to equal yes.
In the KISS Command box enter
sudo /usr/sbin/kissattach /dev/rfcomm7
In the RIG Command box enter
/usr/local/bin/rigctl -m 4
For the Yaesu 817 I set HF Mode to RTTY and 2M mode
to PKTFM. Others are probably ok left at default.
Now click the "Create" button at the bottom and name
the new config file. I use "BT-RIG#" for my names.
Now use Pat Menu to load the new config file that
you just created.
EOF

cat /run/user/$UID/btflrig.help | less
clear;echo;echo
echo "You can open the help file again by running"
echo "\"btflrig help\" at anytime or you can place"
echo "the help document on your desktop."
read -p "Place on your desktop y/n ? " ANS
if [ $ANS = 'y' ] || [ $ANS = 'Y' ]; then
cat /run/user/$UID/btflrig.help | tail -n +8 > $HOME/Desktop/btflrig-help.txt
fi
}

#######################################
#	Create Menu Shortcut	      #
#######################################

MENUITEM(){
cat <<EOF>/run/user/$UID/btflrig.desktop
[Desktop Entry]
Name=BT-Flrig
GenericName=Amateur Radio Rig Control
Comment=Amateur Radio Communications
Exec=/home/pi/bin/btflrig
Icon=flrig
Terminal=false
Type=Application
Categories=Network;HamRadio;
NoDisplay=false
EOF

sudo mv /run/user/$UID/btflrig.desktop /usr/share/applications/
}

#######################################
#	Scan for Mac Addr	      #
#######################################
SCAN(){
FILE=/run/user/$UID/bt.txt
clear;echo;echo
echo "scanning for device......please wait"
hcitool scan > $FILE
sed -i '1d' $FILE
CHK=$(grep : $FILE)
	if [ -z "$CHK" ]; then
	clear;echo;echo
	echo "Device not found. Check that the device"
	echo "is firmly seated and the radio is on."
	echo "Then run \"btflrig scan\" again"
	exit 1
	fi
clear;echo;echo
echo "           MAC ADDRESS           NAME"
echo "        =================       ======"
cat $FILE
echo
echo "Find your device in the line/list above"
read -p "and enter the name of the device. " ANS

MAC=$(grep -i "$ANS" /run/user/$UID/bt.txt | awk '{print $1}')
echo "MAC=$MAC" > $CONFIG
}

#######################################
#	Check for user input	      #
#######################################

if [ $1 = 'scan' ]; then
SCAN
source $CONFIG
	if [ -z $MAC ] || [ "$MAC" = '...' ]; then
	echo "Scan failed. Please try again"
	exit 1	
	else
	echo "Scan complete. Next run \"btflrig menu\" to create a menu shortcut"
	exit
	fi
elif [ $1 = 'menu' ]; then
MENUITEM
echo "Menu shortcut created"
echo "Use menu item \"BT-Flrig\" found in the"
echo "ham radio category of the pi menu to start"
echo "FLRIG"
exit 0
elif [ $1 = 'help' ]; then
HELP
exit 0
fi

#######################################
#	Main Connect Script	      #
#######################################
#sudo rfcomm connect /dev/rfcomm0 $MAC &
#sleep 3
#/usr/local/bin/flrig
#release rfcomm once FLRIG is closed
#sudo rfcomm release /dev/rfcomm0


while :

do

	rfcomm show 7
	connection_state=$?

		while [ $connection_state -ne 0 ]
		do
		sudo rfcomm connect 7 $MAC &
		sleep 2
		rfcomm show 7
		connection_state=$?
		done

/usr/local/bin/flrig --config-dir $HOME/.btflrig
sudo rfcomm release 7
exit 0
done