#! /bin/bash -e

#####################################################################
#                                                                   #
#          Compiles Faust programs to PortAudio and Julia binary    #
#               (c) Grame, 2021                                     #
#                                                                   #
#####################################################################

. faustpath
. faustoptflags
. usage.sh

SRC="0"
ARCHFILE=$FAUSTARCH/julia/portaudio-gtk.jl

PLAY=false
THREAD=1
OSC=""

echoHelp()
{
    usage faust2portaudiojulia "[options] [Faust options] <file.dsp>"
    require PortAudio
    echo "Compiles Faust programs to PortAudio and Julia binary"
    option "-osc" "to activate OSC control on 5000 and 5001 ports"
    option "-play <num>" "to start the 'Julia' runtime with <num> threads and the generated file.jl"
    option "Faust options"
    exit
}

if [ "$#" -eq 0 ]; then
    echo 'Please, provide a Faust file to process !'
    echo ''
    echoHelp
fi

#PHASE 2 : dispatch command arguments
while [ $1 ]
do
    p=$1

    if [ $p = "-help" ] || [ $p = "-h" ]; then
        echoHelp
    elif [ $p = "-source" ]; then
        SRC="1"
    elif [[ $p = -osc* ]]; then
        OSC=$p
    elif [ $p = "-play" ]; then
        PLAY=true
        shift
        THREAD=$1
    elif [ ${p:0:1} = "-" ]; then
        OPTIONS="$OPTIONS $p"
    elif [[ -f "$p" ]] && [ ${p: -4} == ".dsp" ]; then
        FILES="$FILES $p"
    else
        OPTIONS="$OPTIONS $p"
    fi

shift

done

#-------------------------------------------------------------------
# compile the *.dsp files
#

for p in $FILES; do

    f=$(basename "$p")

    # compile Faust DSP and put in the cargo folder
    faust -a $ARCHFILE -lang julia $OPTIONS "$f" -o "${f%.dsp}.jl"

done

if [ $PLAY = true ] ; then
    if [[ $OSC != "" ]] ; then
         julia -t $THREAD "${f%.dsp}.jl" $OSC
    else
        julia -t $THREAD "${f%.dsp}.jl" -gtk
    fi
fi
