#!/bin/bash
#
# Simple script to run FreeDATA in Linux
# Dj Merrill - 25 Apr 2024
#
# Run this script in the directory that contains the "FreeDATA" and 
# "FreeDATA-venv" directories created by the install-freedata.sh script
#
# Two log files are created in this directory:
# FreeDATA-server.log: debug output from the server process
# FreeDATA-client.log: debug output from the GUI front end
#
# We expect the config.ini file to be at $HOME/.config/FreeDATA/config.ini
# If it isn't found, we copy config.ini.example there
#
#

# Activate the Python Virtual Environment
source ./FreeDATA-venv/bin/activate

# Check to see if there is an old server running, and stop it if there is
checkoldserver=`ps auxw | grep FreeDATA | grep server.py`

if [ ! -z "$checkoldserver" ];
then
	oldserverpid=`echo $checkoldserver | cut -d" " -f2`
	echo "*************************************************************************"
	echo "Found old FreeDATA server at PID" $oldserverpid "- stopping it"
	echo "*************************************************************************"
	kill $oldserverpid
	sleep 7s
fi

echo "*************************************************************************"
echo "Running the FreeDATA server component"
echo "*************************************************************************"

# New versions use freedata_server, old version use modem
if [ -d "FreeDATA/freedata_server" ];
then
	serverdir="FreeDATA/freedata_server"
else
	serverdir="FreeDATA/modem"
fi

if [ ! -d "$HOME/.config/FreeDATA" ];
then
	mkdir -p $HOME/.config/FreeDATA
fi
if [ ! -f "$HOME/.config/FreeDATA/config.ini" ];
then
	echo "*************************************************************************"
	echo "No config file found.  Copying example config file to"
	echo $HOME/.config/FreeDATA/config.ini
	echo "*************************************************************************"
	cp $serverdir/config.ini.example $HOME/.config/FreeDATA/config.ini
fi

FREEDATA_CONFIG=$HOME/.config/FreeDATA/config.ini python3 $serverdir/server.py > FreeDATA-server.log 2>&1 &
serverpid=$!
echo "Process ID of FreeDATA server is" $serverpid

# Run the GUI front end
echo "*************************************************************************"
echo "Running the FreeDATA GUI front end"
echo "*************************************************************************"

# New versions use "freedata_gui", old versions use "gui"
if [ -d "FreeDATA/freedata_gui" ];
then
	guidir="FreeDATA/freedata_gui"
else
	guidir="FreeDATA/gui"
fi

cd $guidir

if [ -f "$HOME/.nvm/bash_completion" ];
then
	export NVM_DIR="$HOME/.nvm"
	[ -s "$NVM_DIR/nvm.sh" ] && \. "$NVM_DIR/nvm.sh"
	[ -s "$NVM_DIR/bash_completion" ] && \. "$NVM_DIR/bash_completion"
else
	echo "Something went wrong.  $HOME/.nvm environment not created properly."
	exit 1
fi

checknpm=`which npm`
if [ -z "$checknpm" ];
then
	echo "Something went wrong.  npm not found."
	exit 1
fi

npm start > ../../FreeDATA-client.log 2>&1

# If we are this far, then we have just quit the GUI, so let's clean up the
# server
echo "*************************************************************************"
echo "Stopping the server component"
echo "*************************************************************************"
kill $serverpid

# Return to the directory we started in
cd ..