#!/bin/bash

# Slackware build script for Lac

# Copyright 2026  Johannes Schoepfer, Germany
# 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=Lac
VERSION=${VERSION:-09p55}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

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

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 [ "$ARCH" = "i586" -o "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=$ARCH -mtune=i686"
elif [ "$ARCH" = "x86_64" -o "$ARCH" = "aarch64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM$VERSION
tar xvf $CWD/$PRGNAM$VERSION.tar.gz --no-same-owner
cd $PRGNAM$VERSION
find . ! -type l    -a \( \
  \(     -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \(   ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \)

CXXFLAGS="$SLKCFLAGS" make V=1

mkdir -p $PKG/usr/bin
cp bin/Release/$PRGNAM$VERSION $PKG/usr/bin/$PRGNAM
mkdir -p $PKG/usr/share/lac/{music,models,sounds,textures}
cp lac.png $PKG/usr/share/lac/lac.png
cp DefaultHeightMap.LAC $PKG/usr/share/lac
cp bin/music/* $PKG/usr/share/lac/music/
cp bin/sounds/* $PKG/usr/share/lac/sounds
cp bin/models/* $PKG/usr/share/lac/models
cp bin/textures/* $PKG/usr/share/lac/textures

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/share/applications
cat << EOF > $PKG/usr/share/applications/$PRGNAM.desktop
[Desktop Entry]
Type=Application
Name=Linux Air Combat
GenericName=Flight Simulator
Comment=Open source combat flight simulator
Terminal=false
Icon=/usr/share/lac/lac.png
Exec=sh -c $PRGNAM
Keywords=lac;game;air;flight;combat;linux;plane;
Categories=Game
StartupNotify=true
EOF
chmod 644 $PKG/usr/share/applications/$PRGNAM.desktop

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC
cp -a \
  README.txt WhatsNew.txt \
  $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$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