#!/bin/bash
# Sonic Pi Launch Script for Debian 9/Stretch - by SunderB
set -e # Quit script on error
# -x # Verbose
echo "Starting Sonic Pi... Please leave this window open, it will clear up processes and close automatically."
SCRIPT_DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"
"${SCRIPT_DIR}/app/gui/qt/sonic-pi" # Run Sonic Pi

# The script will resume when Sonic Pi is closed.
# Close left over beam.smp processes
echo "Sonic Pi closed. Closing any left over processes..."

# Set up array
pidsArray=()

# Get PIDs of left over processes...
while read each; do
		pidsArray+=("$each")
done < <(echo "$(ps -ef | grep -v awk | awk '/beam.smp/ { print $2 }')")
# ps -ef - Gets the list of processes with their PIDs
# grep -v awk - Removes any processes containing 'awk' (to avoid picking up the next command)
# awk '/beam.smp/ { print $2 }' - Extracts the PIDs of any processes containing 'beam.smp'
# pidsArray+=("$each") - Adds the PIDs to the array.

# If there only one object in the array, and that object is empty, then it's likely there's no processes left over.
if [[ ${pidsArray[0]} = "" ]] && [ ${#pidsArray[@]} -eq 1 ]; then
		echo "0 left over processes found."
else
		echo "${#pidsArray[@]} left over process(es) found."
		# If there is any PIDs in the array...
		if ((${#pidsArray[@]} > 0)); then
				# Iterate through them.
				for i in "${pidsArray[@]}"; do
						# If the object is empty, ignore it. Otherwise, close that process.
						if [[ ! $i = "" ]]; then
								echo "Closing process $i..."
								kill "$i"
						else
								echo "Process ID = nothing?! Lets just ignore that one."
						fi
				done
		fi
fi
echo "Done!"