#!/bin/bash

# Slackware build script for "plex-home-theater".

# Copyright 2014-2015 Marcel Saegebarth <marc@mos6581.de>
# All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "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 COPYRIGHT
# OWNER OR CONTRIBUTORS 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.

PRGNAM=plex-home-theater
VERSION=${VERSION:-1.4.1.469}
REV=${REV:-47a90f01}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
fi

CWD=$(pwd)
TMP=${TMP:-/tmp/SBo}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

if [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
  LIBDIRSUFFIX="64"
else
  SLKCFLAGS="-O2"
  LIBDIRSUFFIX=""
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-public-$VERSION-$REV
tar xvf $CWD/$PRGNAM-public-$VERSION-$REV.tar.gz || tar xvf $CWD/v$VERSION-$REV.tar.gz
cd $PRGNAM-public-$VERSION-$REV
chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

# remove AirTunes dependency (would require libshairport)
sed -i 's/  ShairPort//' plex/CMakeModules/PlatformConfigLINUX.cmake

# Disables AES for VIA CPU's due to segfaults. Thanks to Philip van der Hoeven.
patch -p0 < $CWD/disable_via_ace.patch

# Find fribidi-0.19.7
# https://raw.githubusercontent.com/foux/fouxlay/master/media-tv/plex-home-theater/files/fribidi.patch
patch -p1 < $CWD/fribidi.patch

# Fix "'asm' operand has impossible constraints" build failure in embedded ffmpeg
if [ "$ARCH" != 'x86_64' ]; then
  sed -i -e 's/get_cabac(/get_cabac_noinline(/g' lib/ffmpeg/libavcodec/cabac.c
  sed -i -e 's/get_cabac(/get_cabac_noinline(/g' lib/ffmpeg/libavcodec/h264_cabac.c
fi

mkdir build
cd build

cmake \
  -DCMAKE_C_FLAGS="$SLKCFLAGS" \
  -DCMAKE_CXX_FLAGS="$SLKCFLAGS" \
  -DCMAKE_INSTALL_PREFIX=/opt/$PRGNAM \
  -DCMAKE_BUILD_TYPE=Release \
  -DENABLE_AUTOUPDATE='FALSE' \
  -DENABLE_DUMP_SYMBOLS='FALSE' \
  -DENABLE_PYTHON='TRUE' \
  -DUSE_INTERNAL_FFMPEG='TRUE' \
  -DCREATE_BUNDLE='FALSE' \
  ..

# internal ffmpeg version doesn't build with multiple jobs
make -j1
make install DESTDIR=$PKG

cd ..

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p $PKG/usr/bin
install -D -m 0755 $CWD/plex-home-theater $PKG/usr/bin

mkdir -p $PKG/usr/share/applications
install -D -m 0644 $CWD/$PRGNAM.desktop $PKG/usr/share/applications

mkdir -p $PKG/usr/share/pixmaps
install -D -m 0644 $CWD/${PRGNAM}_512x512.png $PKG/usr/share/pixmaps

mkdir -p $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  CONTRIBUTORS LICENSE.GPL README README-BUILD-PLEX.md docs/README.* \
  $PKG/usr/doc/$PRGNAM-$VERSION
cat $CWD/$PRGNAM.SlackBuild > $PKG/usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

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

cd $PKG
/sbin/makepkg -l y -c n $OUTPUT/$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.${PKGTYPE:-tgz}