#!/bin/bash

# Slackware build script for brother-brscan4

# Copyright 2024-2026 Shahab Vahedi
# 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=brother-brscan4
VERSION=${VERSION:-0.4.11_1}
BUILD=${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

case "$ARCH" in
  x86_64)
    LIBDIRSUFFIX="64"
    PKGARCH="amd64"
    ;;
  i?86)
    LIBDIRSUFFIX=""
    PKGARCH="i386"
    ;;
  *)
    echo "Only x86 architectures are supported."
    exit 1
    ;;
esac

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

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG
DEBVER=$(echo $VERSION | tr '_' '-')
ar p $CWD/brscan4-${DEBVER}.${PKGARCH}.deb data.tar.gz | tar xvz

INST_OPT=opt/brother/scanner/brscan4

chown -R root:root .
find . ! -type l -a \( \
  \(   -perm /111 -a ! -perm 755 -a -exec chmod -f 755 {} + \) -o \
  \( ! -perm /111 -a ! -perm 644 -a -exec chmod -f 644 {} + \) \
\)

# Deployment layout:
#
# /$INST_OPT/models4/ext_*.ini
# /$INST_OPT/brsscan_cnetconfig
# /$INST_OPT/brsscan_gnetconfig
# /$INST_OPT/brsaneconfig4
# /$INST_OPT/Brsane4.ini
# /$INST_OPT/brsanenetdevice4.cfg
#
# /etc/udev/rules.d/50-brother-brscan4-libsane.rules
# /etc/$INST_OPT/models4              --> link-to --> /$INST_OPT/models4/
# /etc/$INST_OPT/Brsane4.ini          --> link-to --> /$INST_OPT/Brsane4.ini
# /etc/$INST_OPT/brsanenetdevice4.cfg --> link-to --> /$INST_OPT/brsanenetdevice4.cfg
#
# /usr/bin/brsaneconfig4 --> link-to --> /$INST_OPT/brsaneconfig4
# /usr/(lib|lib64)/sane/libsane-brother4.so.1.0.7
# /usr/(lib|lib64)/sane/libsane-brother4.so.1 (link to *so.1.0.7)
# /usr/(lib|lib64)/sane/libsane-brother4.so   (link to *so.1.0.7)

# libsane-brother4.so links are absolute paths in the Debian package.
# Turn them into relative ones.
so_major=$(basename $(readlink $PKG/usr/lib$LIBDIRSUFFIX/sane/libsane-brother4.so))
so_minor=$(basename $(readlink $PKG/usr/lib$LIBDIRSUFFIX/sane/$so_major))
ln -sf $so_major $PKG/usr/lib$LIBDIRSUFFIX/sane/libsane-brother4.so
ln -sf $so_minor $PKG/usr/lib$LIBDIRSUFFIX/sane/$so_major

# Useless scripts and doc.
rm    $INST_OPT/setupSaneScan4
rm    $INST_OPT/udev_config.sh
rm -r $INST_OPT/doc

mkdir -p usr/doc/$PRGNAM-$VERSION
cat $CWD/README > usr/doc/$PRGNAM-$VERSION/README.sw
cat $CWD/$PRGNAM.SlackBuild > usr/doc/$PRGNAM-$VERSION/$PRGNAM.SlackBuild

# udev rule
mkdir -p $PKG/etc/udev/rules.d
install -m 644 $CWD/50-brother-brscan4-libsane.rules $PKG/etc/udev/rules.d

# Don't clobber the config file
mv $PKG/opt/brother/scanner/brscan4/brsanenetdevice4.cfg \
   $PKG/opt/brother/scanner/brscan4/brsanenetdevice4.cfg.new

mkdir -p install
cat $CWD/slack-desc > install/slack-desc
cat $CWD/doinst.sh > install/doinst.sh
cat $CWD/douninst.sh > install/douninst.sh

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