#!/bin/bash

alsafind () {
	client="unknown"
	aconnect $1 | while read x y z ; do
		if [ "$x" = "client" ] ; then
			client="${y/:/}"
		elif echo "$y $z" | grep -q "$2" ; then
			echo "$client:$x"
		fi
	done
}

jackfind () {
	jack_lsp | grep "$1" | head -1
}

patch () {
	case "$1" in
		none)
			midiname="none"
			lout="system:capture_1"
			rout="system:capture_2"
			;;
		fluidsynth)
			midiname="Synth input"
			lout="$(jackfind 'fluidsynth.*:left')"
			rout="$(jackfind 'fluidsynth.*:right')"
			;;
		aeolus)
			midiname="1"
			lout="aeolus:out_1"
			rout="aeolus:out_2"
			;;
		phasex)
			midiname="PHASEX MIDI In  "
			lout="phasex:out_1"
			rout="phasex:out_2"
			;;
		jack-dssi-host)
			case "$2" in
				hexter.so)
					lout="$(jackfind hexter)"
					rout="$lout"
					midiname="hexter"
					;;
				xsynth-dssi.so)
					lout="$(jackfind Xsynth)"
					rout="$lout"
					midiname="Xsynth"
					;;
				whysynth.so)
					lout="$(jackfind 'WhySynth.*out_1')"
					rout="$(jackfind 'WhySynth.*out_2')"
					midiname="WhySynth"
					;;
				nekobee.so)
					lout="$(jackfind nekobee)"
					rout="$lout"
					midiname="nekobee"
					;;
				sineshaper.so)
					lout="$(jackfind Sineshaper)"
					rout="$lout"
					midiname="Sineshaper"
					;;
			esac
			;;
	esac

	if [ "$midiname" != "none" ] ; then
		aconnect $(alsafind -i "MIDI") $(alsafind -o "$midiname")
	fi

	jack_disconnect "$lout" system:playback_1
	jack_disconnect "$rout" system:playback_2

	inp1="$(jackfind 'jack_rack.*:in_1')"
	if [ "$inp1" != "" ] ; then
		jack_connect "$lout" "$inp1"
		jack_connect "$rout" "$(jackfind 'jack_rack.*:in_2')"
		jack_connect "$(jackfind 'jack_rack.*:out_1')" system:playback_1
		jack_connect "$(jackfind 'jack_rack.*:out_2')" system:playback_2
	else
		jack_connect "$lout" system:playback_1
		jack_connect "$rout" system:playback_2
	fi
	echo "Patching complete"
}

if [ "$1" = "none" ] ; then
	patch none
else
	(sleep 5; patch "$@") &
	exec "$@"
fi