#!/bin/bash

# Copyright 2019, 2022, 2025  Eric Hameleers, Eindhoven, NL
# Copyright 2026  Patrick J. Volkerding, Sebeka, Minnesota, USA
# All rights reserved.
#
# Redistribution and use of this script, with or without modification, is
# permitted provided that the following conditions are met:
#
# 1. Redistributions of this script must retain the above copyright
#    notice, this list of conditions and the following disclaimer.
#
#  THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
#  WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
#  MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO
#  EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
#  SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
#  PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
#  OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
#  WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
#  OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
#  ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

cd $(dirname $0) ; CWD=$(pwd)

PKGNAM=aubio
VERSION=${VERSION:-$(echo $PKGNAM-*.tar.?z | rev | cut -f 3- -d . | cut -f 1 -d - | rev)}
BUILD=${BUILD:-1}

# Automatically determine the architecture we're building on:
if [ -z "$ARCH" ]; then
  case "$(uname -m)" in
    i?86) ARCH=i686 ;;
    arm*) readelf /usr/bin/file -A | egrep -q "Tag_CPU.*[4,5]" && ARCH=arm || ARCH=armv7hl ;;
    # Unless $ARCH is already set, use uname -m for all other archs:
    *) ARCH=$(uname -m) ;;
  esac
  export ARCH
fi

# If the variable PRINT_PACKAGE_NAME is set, then this script will report what
# the name of the created package would be, and then exit. This information
# could be useful to other scripts.
if [ ! -z "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PKGNAM-$VERSION-$ARCH-$BUILD.txz"
  exit 0
fi

NUMJOBS=${NUMJOBS:-" -j $(expr $(nproc) + 1) "}

if [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=pentium4 -mtune=generic"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -march=x86-64 -mtune=generic -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

# Needed for the python extention:
SLKCFLAGS+=" -Wno-error=incompatible-pointer-types"

# Fail on undeclared variables and broken pipes:
set -u -o pipefail

TMP=${TMP:-/tmp}
PKG=$TMP/package-$PKGNAM

rm -rf $PKG
mkdir -p $TMP $PKG

# Since aubio will be unavailable for a while, REQUIRE_GLOBAL_LOCK.

if [ -x /usr/bin/aubio ]; then
  echo "Aubio detected."
  echo
  echo "The aubio package needs to be removed before building to ensure that"
  echo "it builds correctly."
  echo
  echo "Removing the aubio package in 15 seconds, and then continuing with the build."
  sleep 15
  removepkg aubio
fi

cd $TMP
rm -rf $PKGNAM-$VERSION
tar xvf $CWD/$PKGNAM-$VERSION.tar.?z || exit 1
cd $PKGNAM-$VERSION || exit 1

chown -R root:root .
find . \
  \( -perm 777 -o -perm 775 -o -perm 711 -o -perm 555 -o -perm 511 \) \
  -exec chmod 755 {} \+ -o \
  \( -perm 666 -o -perm 664 -o -perm 600 -o -perm 444 -o -perm 440 -o -perm 400 \) \
  -exec chmod 644 {} \+

# Replace waf with a working version:
rm -rf waf waflib
cp -a $CWD/waf waf
chown root:root waf
chmod 755 waf

# Apply patches:
cat $CWD/patches/aubio_ffmpeg5.patch | patch -p1 --verbose || exit 1
cat $CWD/patches/aubio_cdfe9cef.patch | patch -p1 --verbose || exit 1
cat $CWD/patches/aubio_245deead.patch | patch -p1 --verbose || exit 1
cat $CWD/patches/aubio_0b947f96.patch | patch -p1 --verbose || exit 1
cat $CWD/patches/aubio_53bc55cd.patch | patch -p1 --verbose || exit 1
cat $CWD/patches/aubio_ffmpeg7.patch | patch -p1 --verbose || exit 1
cat $CWD/patches/numpy-2.0.patch | patch -p1 --verbose || exit 1

# Fix build with ffmpeg 8:
sed -i 's#AV_INPUT_BUFFER_MIN_SIZE#16384#' src/io/source_avcodec.c

CFLAGS="$SLKCFLAGS" \
CXXFLAGS="$SLKCFLAGS" \
  python3 waf configure \
  --prefix=/usr \
  --libdir=/usr/lib${LIBDIRSUFFIX} \
  --sysconfdir=/etc \
  --localstatedir=/var \
  --docdir=/usr/doc/$PKGNAM-$VERSION \
  --mandir=/usr/man \
  --enable-fftw3f || exit 1
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" python3 waf $NUMJOBS build || exit 1
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" python3 waf install --destdir=$PKG || exit 1

# Install the python bindings - this requires numpy:
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" python3 setup.py install --root=$PKG || exit 1
make clean
CFLAGS="$SLKCFLAGS" CXXFLAGS="$SLKCFLAGS" python3 setup.py install --root=$PKG || exit 1

# Don't ship .la files:
rm -f $PKG/{,usr/}lib${LIBDIRSUFFIX}/*.la

# Strip binaries:
find $PKG | xargs file | grep -e "executable" -e "shared object" | grep ELF | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null

# Compress manual pages:
find $PKG/usr/man -type f -exec gzip -9 {} \+
for i in $( find $PKG/usr/man -type l ) ; do
  ln -s $( readlink $i ).gz $i.gz
  rm $i
done

# Let's not package this:
rm -rf $PKG/usr/share/doc
rmdir $PKG/usr/share

# Add a documentation directory:
mkdir -p $PKG/usr/doc/${PKGNAM}-$VERSION
cp -a \
  AUTHORS* COPYING* ChangeLog README* VERSION* \
  $PKG/usr/doc/${PKGNAM}-$VERSION

# If there's a ChangeLog, installing at least part of the recent history
# is useful, but don't let it get totally out of control:
if [ -r ChangeLog ]; then
  DOCSDIR=$(echo $PKG/usr/doc/${PKGNAM}-$VERSION)
  cat ChangeLog | head -n 1000 > $DOCSDIR/ChangeLog
  touch -r ChangeLog $DOCSDIR/ChangeLog
fi

mkdir -p $PKG/install
cat $CWD/slack-desc > $PKG/install/slack-desc

cd $PKG
/sbin/makepkg -l y -c n $TMP/$PKGNAM-$VERSION-$ARCH-$BUILD.txz