#!/bin/bash

# Slackware build script for jzintv

# Written by B. Watson (urchlay@slackware.uk)

# Licensed under the WTFPL. See http://www.wtfpl.net/txt/copying/ for details.

# 20240919 bkw:
# - update for v20200712.
# - add DEFRES to control default window size.
# - include 4-tris ROM.
# - new download URL for intv.zip, some residential ISPs block
#   the previous one. lame.

# 20230107 bkw: BUILD=3
# - fix permissions in doc dir.
# - go ahead and include the ROMs in the package.

# 20211023 bkw: BUILD=2
# - fix -current build.
# - binaries in /usr/games.
# - /usr/share/jzintv/ => /usr/share/games/jzintv
# - add patch to make the default window size 1024x768.
# - include ROM images in package, if they exist in the SlackBuild dir.

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

PRGNAM=jzintv
VERSION=${VERSION:-20200712}
BUILD=${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 [ "$ARCH" = "i586" ]; then
  SLKCFLAGS="-O2 -march=i586 -mtune=i686"
elif [ "$ARCH" = "i686" ]; then
  SLKCFLAGS="-O2 -march=i686 -mtune=i686"
elif [ "$ARCH" = "x86_64" ]; then
  SLKCFLAGS="-O2 -fPIC"
else
  SLKCFLAGS="-O2"
fi

set -e

ZIPNAME=$PRGNAM-$VERSION-src

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $ZIPNAME
unzip $CWD/$ZIPNAME.zip
cd $ZIPNAME
chown -R root:root .

# 20240919 bkw: Upstream left .exrc turds in the tarball, this find
# gets rid of them in addition to fixing the permissions.
find . -name .exrc -delete -o \
       -type f -a -exec chmod 644 {} + -o \
       -type d -a -exec chmod 755 {} +

# Don't see a way to redefine the ROM path on the make command
# line (it's hard-coded to /usr/local/share/jzintv/rom).
# 20240924 bkw: Used to be a patch; use sed now. Leave "." in the
# path, just in case.
sed -i '/DEFAULT_ROM_PATH/s,".*,".:/usr/share/games/jzintv/rom",' src/config.h

# It's 2021, make the default window size bigger than 320x240.
# 20240919 bkw: Used to do with a patch, now we use sed and can
# have an environment variable to control the default res.
DEFRES="${DEFRES:-1360x1024}"
sed -i '/#define *STR_REPLACE(/aSTR_REPLACE(disp_res, "'"$DEFRES"'");' src/cfg/cfg.c

# Fix for gcc-4.7.x and up.
sed -i '/^LFLAGS/s,$, -lm,' src/Makefile

# 20240919 bkw: No, we do not want a statically-linked binary. Can't
# anyway, we lack static versions of some of the libs it needs.
sed -i 's,-static,,' src/Makefile.common

make -C src OPT_FLAGS="$SLKCFLAGS"

# There's no 'make install'
rm -f bin/README* bin/*.dll
strip bin/*
mkdir -p $PKG/usr/games
cp -a bin/* $PKG/usr/games

# The rompath patch above makes jzintv look here for the
# system ROMs
ROMDIR=$PKG/usr/share/games/$PRGNAM/rom
mkdir -p $ROMDIR

# 20211022 bkw: if the ROMs are in the slackbuild dir, include them.
# ROM finding/extraction script is separate, as it's fairly
# complex (or at least tedious).
sh $CWD/extract_roms.sh $CWD $ROMDIR

ROMS=""
for romfile in exec.bin grom.bin ecs.bin; do
  if [ -e $ROMDIR/$romfile ]; then
    ROMS+="$romfile "
  fi
done

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
mkdir -p $PKGDOC

if [ -e $CWD/4-tris.zip ]; then
  mkdir -p $ROMDIR/4-tris $PKGDOC/4-tris
  unzip $CWD/4-tris.zip 4-tris.rom -d $ROMDIR/4-tris
  unzip $CWD/4-tris.zip README.txt COPYING.txt -d $PKGDOC/4-tris
  chmod 644 $ROMDIR/4-tris/* $PKGDOC/4-tris/*
  chown root:root $ROMDIR/4-tris/* $PKGDOC/4-tris/*
  ROMS+="4-tris.rom"
fi

if [ "$ROMS" = "" ]; then
  ROMS="This package does NOT include ROM images."
else
  ROMS="Package includes ROM images: $ROMS"
fi

echo "This directory is empty on purpose" > examples/spacepat/genasm/.dontdelete
cp -r *.txt doc examples rom misc $PKGDOC
cat $CWD/$PRGNAM.SlackBuild > $PKGDOC/$PRGNAM.SlackBuild
cat $CWD/README > $PKGDOC/README_SBo.txt

mkdir -p $PKG/install
sed -e "s/@ROMS@/$ROMS/" \
    -e "s/@DEFRES@/$DEFRES/" \
    $CWD/slack-desc > $PKG/install/slack-desc

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