#!/bin/bash

# --- INIT ---
# Set initial variables:
CWD=`pwd`

PRGNAM=$(basename $CWD)
TAG=${TAG:-gwh}
OUTPUT=/tmp
TMP=${TMP:-/tmp/$TAG}
PKG=$TMP/pkg-$PRGNAM

VERSION=${VERSION:-$(curl -s http://cyxdown.free.fr/reminiscence/CHANGES.txt | grep release | head -n1 | grep -o "[0-9.]*")}
ARCH=${ARCH:-$(uname -m)}
BUILD=1

REPOSITORY=${REPOSITORY:-/home/installs/SlackBuilds/_repositories/$PRGNAM}

mkdir -p $REPOSITORY

if [ "$ARCH" = "i386" ]; then
  SLKCFLAGS="-O2 -march=i386 -mtune=i686"
elif [ "$ARCH" = "i486" ]; then
  SLKCFLAGS="-O2 -march=i486 -mtune=i686"
elif [ "$ARCH" = "s390" ]; then
  SLKCFLAGS="-O2"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2"
fi

# --- PACKAGE BUILDING ---
[ ! -e $REPOSITORY/${PRGNAM}-${VERSION}.tar.bz2 ] && wget -c -O $REPOSITORY/${PRGNAM}-${VERSION}.tar.bz2 http://cyxdown.free.fr/reminiscence/REminiscence-${VERSION}.tar.bz2
[ ! -e $REPOSITORY/CHANGES-${VERSION}.txt ] && wget -c -O $REPOSITORY/CHANGES-${VERSION}.txt http://cyxdown.free.fr/reminiscence/CHANGES.txt
[ ! -e $REPOSITORY/flashback-x86_64.tar.gz ] & wget -c -O $REPOSITORY/flashback-x86_64.tar.gz https://lutris.net/files/games/flashback/flashback-x86_64.tar.gz
[ ! -e $REPOSITORY/stb_vorbis.c ] & wget -c -O $REPOSITORY/stb_vorbis.c https://raw.githubusercontent.com/nothings/stb/master/stb_vorbis.c

rm -rf $PKG $TMP/${PRGNAM}-${VERSION}
mkdir -p $TMP

echo "Extracting the program tarball for $PRGNAM..."
[ -e $TMP/${PRGNAM}-${VERSION} ] && rm -r $TMP/${PRGNAM}-${VERSION}
cd $TMP
tar xf $REPOSITORY/${PRGNAM}-${VERSION}.tar.bz2

cd ${PRGNAM}-${VERSION}

chown -R root.root *
find . -perm 777 -exec chmod 755 {} \;

zcat $CWD/nices_path.patch.gz | patch -p1
cp $REPOSITORY/stb_vorbis.c .

# --- BUILDING ---

CFLAGS="$SLKCFLAGS" \
      make

#
# Install all the needed stuff to the package dir
#
mkdir -p $PKG/usr/games $PKG/usr/share/games/ $PKG/var/lib/$PRGNAM
mv rs $PKG/usr/games/

cd $PKG/usr/games/
ln -s rs REminiscence
ln -s rs flashback

cd $PKG/usr/share/games/
tar xf $REPOSITORY/flashback-x86_64.tar.gz # jeu lui-même
mv flashback $PRGNAM

mkdir -p $PKG/usr/share/pixmaps
cp $CWD/flashback.png $PKG/usr/share/pixmaps

# --- DOCUMENTATION ---
cd $TMP/${PRGNAM}-${VERSION}
mkdir -p $PKG/usr/doc/$PRGNAM
cp -a $REPOSITORY/CHANGES-${VERSION}.txt README.txt $PKG/usr/doc/$PRGNAM
chmod -R a-w $PKG/usr/doc/$PRGNAM/*

# Compress the man page(s)
[ -d $PKG/usr/man ] && find $PKG/usr/man -type f -name "*.?" -exec gzip -9f {} \;

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

# --- OWNERSHIP, RIGHTS ---

chmod -R o-w $PKG
chown -R root:root $PKG/*
chmod a+rwx $PKG/var/lib/REminiscence


# --- PACKAGE DESCRIPTION ---

mkdir -p $PKG/install

cat <<EOF > $PKG/install/slack-desc
# HOW TO EDIT THIS FILE:
# The "handy ruler" below makes it easier to edit a package description.  Line
# up the first '|' above the ':' following the base package name, and the '|'
# on the right side marks the last column you can put a character in.  You must
# make exactly 11 lines for the formatting to be correct.  It's also
# customary to leave one space after the ':'.

            |-----handy-ruler------------------------------------------------------|
${PRGNAM}: ${PRGNAM} (Flashback game engine)
${PRGNAM}:
${PRGNAM}: ${PRGNAM} is a re-implementation of the engine used in the game
${PRGNAM}: Flashback made by Delphine Software and released in 1992.
${PRGNAM}:
${PRGNAM}: 
${PRGNAM}:
${PRGNAM}: Original files included.
${PRGNAM}:
${PRGNAM}: see /usr/doc/${PRGNAM} for more.
${PRGNAM}: http://cyxdown.free.fr/reminiscence/
EOF

# --- BUILDING ---

# Build the package:
cd $PKG
rm -f $PKG/{,usr/}lib$(uname -m | grep -o 64)/*.la
/sbin/makepkg --linkadd y --chown n $OUTPUT/${PRGNAM}-${VERSION}-${ARCH}-${BUILD}$TAG.txz