#! /bin/bash
# vim: set tabstop=4 shiftwidth=4 noexpandtab filetype=sh:

# adtpro-start - script to start ADTPro "as a headless daemon", ish
#
# To the extent possible under law, T. Joseph Carter and Ivan Drucker have
# waived all copyright and related or neighboring rights to the a2cloud
# scripts themselves.  Software used or installed by these scripts is subject
# to other licenses.  This work is published from the United States.

# don't do anything if ADTPro is already running
if [[ $(ps aux | grep [A]DTPro) ]]; then

	1&>2 echo "ADTPro server is already running."

else

	# look for eligible USB-to-serial adapter
	ttyUSB=
	# if lower USB port
	if [[ -c /dev/ttyUSBlower ]]; then
		ttyUSB=ttyUSBlower
	# if hub in lower port, use lowest numbered port on hub
	elif [[ $(ls -1 /dev/ttyUSBlower_hub* 2> /dev/null | wc -l) -gt 0 ]]; then
		ttyUSB=$(ls -1 /dev/ttyUSBlower_hub* 2> /dev/null | head -1 | cut -c 6-)
	# if hub in upper port with multiple adapters, use lowest numbered port on hub
	elif [[ $(ls -1 /dev/ttyUSBupper_hub* 2> /dev/null | wc -l) -gt 1 ]]; then
		ttyUSB=$(ls -1 /dev/ttyUSBupper_hub* 2> /dev/null | head -1 | cut -c 6-)
	fi

	if [[ $ttyUSB ]]; then
		echo -n "Please wait..."
		sudo nohup adtpro.sh headless serial &> /dev/null
		echo "ok."
	else
		1>&2 echo "No USB-to-serial adapter found in the lower USB port, or"
		1>&2 echo "  a hub on the lower USB port, or the lowest-numbered port"
		1>&2 echo "  of a hub on the upper USB port. Not starting ADTPro server."
	fi

fi