#!/bin/bash

# Slackware build script for pcbasic

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

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

# The .deb is a "binary" package, but this is pure python, so this is
# noarch. The python modules live in /usr/share/$PRGNAM and the main
# /usr/bin/$PRGNAM script has been patched to load the modules from
# there.

# The html doc isn't included in the .deb; it has to be generated
# by checking out the source tree and running "python3 -m make",
# and it requires python/lxml and all its deps. So I just included a
# pre-generated copy of it to make things simpler.

# PyAudio and pygame are optional runtime deps, but I didn't mention
# them in the README because "pcbasic --interface=pygame" says
# "WARNING: The `pygame` interface is deprecated", and because
# I couldn't get PyAudio (sound=portaudio in the config file) to
# actually make any sound.

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

PRGNAM=pcbasic
VERSION=${VERSION:-2.0.7}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}
ARCH=noarch

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}

set -e

# Extract the .deb directly to $PKG, so there's no source directory.
# Feel free to use the "ar p ..." command in your own SlackBuild: it
# extracts a .deb without creating any temp files.
rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG
ar p $CWD/python3-${PRGNAM}_${VERSION}_all.deb data.tar.xz | tar xvfJ -
tar xvf $CWD/$PRGNAM-doc-$VERSION.tar.xz
chown -R root:root .
find -L .  -perm /111 -a \! -perm 755 -a -exec chmod 755 {} \+ -o \
        \! -perm /111 -a \! -perm 644 -a -exec chmod 644 {} \+

# The .deb puts stuff in /usr/local, which I bet is a violation of Debian's
# standards. It definitely violates ours. Note that the man page is installed
# to usr/local/share/man/pcbasic.1.gz (with no man1/ dir). Also, they
# have a bunch of symlinks for the various python 3.x versions, where 3.6
# is the one that *isn't* a link.
# Fortunately, the paths aren't hardcoded in the code, and we can move things
# around as needed, without breaking everything.
PYLIB=usr/share/$PRGNAM
ICONDIR=usr/share/icons/hicolor/32x32/apps
APPDIR=usr/share/applications

mkdir -p usr/bin usr/man/man1 $PYLIB $ICONDIR $APPDIR
mv usr/local/bin/* usr/bin
mv usr/local/share/man/* usr/man/man1
mv usr/local/lib/python3.6/dist-packages/* $PYLIB
mv usr/local/share/applications/* $APPDIR
mv usr/local/share/icons/* $ICONDIR
rm -rf usr/local                      # no files left in this dir anyway...
rm -rf usr/share/pcbasic/pcbasic/lib  # don't need this.

# Make the main program look in our private dir for its python modules.
sed -i -e '2iimport sys' \
       -e "2isys.path.insert(0, '/usr/share/pcbasic')" \
       usr/bin/pcbasic

# Get rid of hardcoded incorrect path.
sed -i 's,/usr/local/bin/,,' $APPDIR/*.desktop

# Old-style icon.
mkdir -p $PKG/usr/share/pixmaps
ln -s ../icons/hicolor/32x32/apps/$PRGNAM.png $PKG/usr/share/pixmaps/$PRGNAM.png

PKGDOC=$PKG/usr/doc/$PRGNAM-$VERSION
ln -s ../../share/$PRGNAM/$PRGNAM-$VERSION.dist-info/licenses/LICENSE.md $PKGDOC
ln -s ../../share/$PRGNAM/$PRGNAM/data/programs $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