#! /bin/bash -e

#####################################################################
#                                                                   #
#               Compiles Faust programs to plotters                 #
#               (c) Grame, 2019-2022                                #
#                                                                   #
#####################################################################

. faustpath
. faustoptflags
. usage.sh

CXXFLAGS+=" $MYGCCFLAGS"  # So that additional CXXFLAGS can be used

ARCHFILE=$FAUSTARCH/csvplot.cpp
ARCHLIB+=" -pthread"

FAUSTFLOAT=float
SOUNDFILELIBS=""

echoHelp() {
    usage faust2csvplot "[options] [Faust options] <file.dsp>"
    echo "Compiles Faust programs to plotters, additional control parameters depend of the DSP, the following 5 options are given at runtime:"
    options -dyn
    option "-s <n>" "start at the sample number <n> (default is 0)"
    option "-n <n>" "render <n> samples (default is 16)"
    option "-r <rate>" "change the sample rate (default is 44100 Hz)"
    option "-bs <buffer>" "change the buffer size (default is 512 frames)"
    option
    option -arch32 "generates a 32 bit architecture."
    option -arch64 "generates a 64 bit architecture."
    option -double "generates code with samples of type 'double'."
    option -soundfile
    option "Faust options"
    exit
}

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

#-------------------------------------------------------------------
# Analyze command arguments :
# faust options                 -> OPTIONS
# if -omp : -openmp or -fopenmp -> OPENMP
# existing *.dsp files          -> FILES
#

# dispatch command arguments
for p in $@; do

    if [ $p = "-help" ] || [ $p = "-h" ]; then
        echoHelp
    elif [ $p = "-arch32" ]; then
        PROCARCH="-m32 -L/usr/lib32"
    elif [ $p = "-arch64" ]; then
        PROCARCH="-m64"
    elif [ $p = "-double" ]; then
        OPTIONS="$OPTIONS $p"
        FAUSTFLOAT="double"
    elif [ $p = "-soundfile" ]; then
        CXXFLAGS="$CXXFLAGS -DSOUNDFILE"
        SOUNDFILELIBS=`pkg-config --cflags --static --libs sndfile`
    elif [ $p = "-dyn" ]; then
        OPTIONS="$OPTIONS -inj template-llvm.cpp"
        LLVM_LIBS="$STRIP $FAUSTLDDIR/libfaust.a `llvm-config --ldflags --libs all --system-libs`"
    elif [ ${p:0:1} = "-" ]; then
        OPTIONS="$OPTIONS $p"
    elif [[ -f "$p" ]] && [ ${p: -4} == ".dsp" ]; then
        FILES="$FILES $p"
    else
        OPTIONS="$OPTIONS $p"
    fi
done

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

for f in $FILES; do

    # compile Faust to c++
    faust -i -a $ARCHFILE $OPTIONS "$f" -o "$f.cpp" || exit

    # compile c++ to binary
    (
        $CXX $CXXFLAGS "$f.cpp" $PROCARCH $LLVM_LIBS $ARCHLIB $SOUNDFILELIBS $OMP -DFAUSTFLOAT=$FAUSTFLOAT -o "${f%.dsp}"
    ) > /dev/null || exit
    rm "$f.cpp"

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