#! /bin/bash -e

#####################################################################
#                                                                   #
#               Compiles Faust programs to CoreAudio-GTK            #
#               (c) Grame, 2021                                     #
#                                                                   #
#####################################################################

. faustpath
. faustoptflags
. usage.sh

CXXFLAGS+=" $MYGCCFLAGS -I/opt/local/include" # So that additional CXXFLAGS can be used

ARCHFILE=$FAUSTARCH/ca-gtk.cpp

OSCDEFS=""
POLY="POLY"
NVOICES=-1
SOUNDFILE="0"
SOUNDFILEDEFS=""
SOUNDFILELIBS=""
PRESETDIR="auto"
PRESETDEFS=""

ARCHLIB+=" -framework CoreMIDI -framework CoreFoundation -framework CoreAudio -framework AudioUnit -framework CoreServices"

echoHelp() 
{
    usage faust2cagtk "[options] [Faust options] <file.dsp>"
    platform MacOS
    require GTK
    echo "Compiles Faust programs to CoreAudio and GTK"
    option
    options -httpd -osc -midi -soundfile -dyn
    option -resample "to resample soundfiles to the audio driver sample rate."
    option "-nvoices <num>"
    option "-effect <effect.dsp>"
    option "-effect auto"
    option "-preset <directory>" "add a preset manager on top of GUI and save the preset files in the given directory"
    option "-preset auto" "add a preset manager on top of GUI and save the preset files in a system temporary directory"
    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 = "-nvoices" ]; then
        POLYDEFS="-DPOLY"
        shift
        NVOICES=$1
        if [ $NVOICES -ge 0 ]; then
            CXXFLAGS="$CXXFLAGS -DNVOICES=$NVOICES"
        fi
    elif [ $p = "-effect" ]; then
        POLYDEFS="-DPOLY2"
        POLY="POLY2"
        shift
        EFFECT=$1
    elif [ $p = "-midi" ]; then
        MIDIDEFS="-DMIDICTRL"
    elif [ $p = "-dyn" ]; then
        OPTIONS="$OPTIONS -inj template-llvm.cpp"
        LLVM_LIBS="$STRIP $FAUSTLDDIR/libfaust.a `llvm-config --ldflags --libs all --system-libs`"
    elif [ $p = "-soundfile" ]; then
        SOUNDFILE="1"
        SOUNDFILEDEFS="-DSOUNDFILE"
        SOUNDFILELIBS=`pkg-config --cflags --static --libs sndfile`
    elif [ $p = "-resample" ]; then
        SAMPLERATEDEFS="-DSAMPLERATE"
        SAMPLERATELIBS=`pkg-config --cflags --static --libs samplerate`
    elif [ $p = "-osc" ]; then
        OSCDEFS="-DOSCCTRL -lOSCFaust"
    elif [ $p = "-httpd" ]; then
        HTTPDEFS="-DHTTPCTRL -lHTTPDFaust"
        HTTPLIBS=`pkg-config --cflags --libs libmicrohttpd`
    elif [ "$p" = "-preset" ]; then
        PRESETDEFS="-DPRESETUI"
        shift
        PRESETDIR=$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 using JACK-GTK
#
for f in $FILES; do

    # compile faust to c++
    if [ $POLY = "POLY2" ]; then
        if [ $EFFECT = "auto" ]; then
            cat > effect.dsp << EndOfCode
            adapt(1,1) = _;
            adapt(2,2) = _,_;
            adapt(1,2) = _ <: _,_;
            adapt(2,1) = _,_ :> _;
            adaptor(F,G) = adapt(outputs(F),inputs(G));
            process = adaptor(library("$f").process, library("$f").effect) : library("$f").effect;
EndOfCode
            faust -i -json -a $ARCHFILE $OPTIONS "$f" -o "${f%.dsp}_tmp.cpp" || exit
            faust -i -cn effect -a minimal-effect.cpp effect.dsp -o effect.h || exit
            rm effect.dsp
        else
            faust -i -json -a $ARCHFILE $OPTIONS "$f" -o "${f%.dsp}_tmp.cpp" || exit
            faust -i -cn effect -a minimal-effect.cpp "$EFFECT" -o "effect.h" || exit
        fi
    else
        faust -i -a $ARCHFILE $OPTIONS "$f" -o "${f%.dsp}_tmp.cpp"|| exit
    fi

    # add preset management
    if [ $PRESETDIR = "auto" ]; then
        PRESETFILE=`mktemp -t preset.XXXXXXXXXX.cpp` || exit 1
        echo "#define PRESETDIR \"auto\"" > "$PRESETFILE"
    else
        PRESETFILE=`mktemp -t preset.XXXXXXXXXX.cpp` || exit 1
        echo "#define PRESETDIR \"$PRESETDIR\"" > "$PRESETFILE"
    fi
    cat "$PRESETFILE" "${f%.dsp}_tmp.cpp" > "${f%.dsp}.cpp"
    rm "$PRESETFILE" "${f%.dsp}_tmp.cpp"

    # compile c++ to binary
    (
        $CXX $CXXFLAGS $FAUSTTOOLSFLAGS "${f%.dsp}.cpp" `pkg-config --cflags --libs $OCVLIBS gtk+-2.0` $LLVM_LIBS $SOUNDFILELIBS $SAMPLERATELIBS $PROCARCH $OSCDEFS $HTTPDEFS $HTTPLIBS $OCVDEFS $MIDIDEFS $POLYDEFS $SOUNDFILEDEFS $SAMPLERATEDEFS $PRESETDEFS $ARCHLIB $LFLAGS -o "${f%.dsp}"
        
        if [[ $(uname) == Darwin ]];  then
            codesign --sign - --deep --force "${f%.dsp}"
        fi

    ) > /dev/null || exit

    # remove temporary files
    rm -f "${f%.dsp}.cpp" effect.h "$f.json"

    # collect binary file name for FaustWorks
    BINARIES="$BINARIES${f%.dsp};"
done

echo $BINARIES
