#!/bin/bash

# Slackware build script for openmw

# Copyright Talos Thoren 2014
# Copyright 2026 Ruoh-Shoei LIN
# 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)

PRGNAM=openmw
VERSION=${VERSION:-0.51.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

OSG_VERSION=${OSG_VERSION:-8aa8d91747ff414ab0de19aae1e0dbd739acea2c}
RECASTNAV_VERSION=${RECASTNAV_VERSION:-1.6.0}
YAML_CPP_VERSION=${YAML_CPP_VERSION:-c2680200486572baf8221ba052ef50b58ecd816e}

if [ -z "$ARCH" ]; then
  case "$( uname -m )" in
    i?86) ARCH=i586 ;;
    arm*) ARCH=arm ;;
       *) ARCH=$( uname -m ) ;;
  esac
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 "${PRINT_PACKAGE_NAME}" ]; then
  echo "$PRGNAM-$VERSION-$ARCH-$BUILD$TAG.$PKGTYPE"
  exit 0
fi

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 $PRGNAM-$VERSION $PRGNAM-$PRGNAM-$VERSION
tar xvf $CWD/$PRGNAM-$VERSION.tar.gz || tar xvf $CWD/$PRGNAM-$PRGNAM-$VERSION.tar.gz
cd $PRGNAM-$PRGNAM-$VERSION
tar xvf $CWD/osg-$OSG_VERSION.tar.gz
tar xvf $CWD/recastnavigation-$RECASTNAV_VERSION.tar.gz
tar xvf $CWD/yaml-cpp-$YAML_CPP_VERSION.tar.gz
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 {} \+

if [ "${CURRENT:-OFF}" = "OFF" ]; then
    export CC=gcc-14.2.0
    export CPP=cpp-14.2.0
    export CXX=g++-gcc-14.2.0
    export AR=gcc-ar-14.2.0
    export NM=gcc-nm-14.2.0
    export RANLIB=gcc-ranlib-14.2.0
    export PATH="/opt/gcc14-14.2.0/bin:$PATH"
fi

if [ "${QT6:-OFF}" = "OFF" ]; then
    QTOPT="-DBUILD_LAUNCHER=OFF -DBUILD_OPENCS=OFF -DBUILD_WIZARD=OFF -DBUILD_OPENCS_TESTS=OFF"
fi

mkdir -p build
cd build
  cmake \
    -DCMAKE_C_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_CXX_FLAGS:STRING="$SLKCFLAGS" \
    -DCMAKE_INSTALL_PREFIX=/usr \
    -DLIB_SUFFIX=${LIBDIRSUFFIX} \
    -DCMAKE_INSTALL_LIBDIR=lib${LIBDIRSUFFIX} \
    $QTOPT \
    -DFETCHCONTENT_FULLY_DISCONNECTED=ON \
    -DOPENMW_USE_SYSTEM_OSG=OFF \
    -DFETCHCONTENT_SOURCE_DIR_OSG=$TMP/$PRGNAM-$PRGNAM-$VERSION/osg-$OSG_VERSION \
    -DBUILD_OSG_PLUGINS_BY_DEFAULT=0 \
    -DBUILD_OSG_PLUGIN_OSG=1 \
    -DBUILD_OSG_PLUGIN_DAE=1 \
    -DBUILD_OSG_PLUGIN_DDS=1 \
    -DBUILD_OSG_PLUGIN_TGA=1 \
    -DBUILD_OSG_PLUGIN_BMP=1 \
    -DBUILD_OSG_PLUGIN_JPEG=1 \
    -DBUILD_OSG_PLUGIN_PNG=1 \
    -DBUILD_OSG_PLUGIN_FREETYPE=1 \
    -DBUILD_OSG_DEPRECATED_SERIALIZERS=0 \
    -DFETCHCONTENT_SOURCE_DIR_RECASTNAVIGATION=$TMP/$PRGNAM-$PRGNAM-$VERSION/recastnavigation-$RECASTNAV_VERSION \
    -DOPENMW_USE_SYSTEM_YAML_CPP=OFF \
    -DFETCHCONTENT_SOURCE_DIR_YAML-CPP=$TMP/$PRGNAM-$PRGNAM-$VERSION/yaml-cpp-$YAML_CPP_VERSION \
    -DSYSCONFDIR=/etc/$PRGNAM \
    -DCMAKE_BUILD_TYPE=Release ..

  make
  make install DESTDIR=$PKG
cd ..

if [ "${QT6}" = "ON" ]; then
    if [ "${CURRENT:-OFF}" = "OFF" ]; then
	sed -i '/TryExec=/! s|Exec=|Exec=env LD_LIBRARY_PATH=/opt/gcc14-14.2.0/lib64 |g' \
	    $PKG/usr/share/applications/{org.openmw.launcher.desktop,org.openmw.cs.desktop}
    fi
fi

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 $PKG/usr/doc/$PRGNAM-$VERSION
cp -a \
  AUTHORS.md CHANGELOG.md CONTRIBUTING.md README.md LICENSE \
  $PKG/usr/doc/$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