#!/bin/bash
#
# Slackware build script for NordVPN
#
# Copyright 2019-2025 Reza Talebi, Shahin Shahr, Iran.
# 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=nordvpn
VERSION=${VERSION:-4.5.0}
BUILD=${BUILD:-1}
TAG=${TAG:-_SBo}
PKGTYPE=${PKGTYPE:-tgz}

# Select nordvpn's default group
NORD_GROUP=${NORD_GROUP:-$PRGNAM}

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}

set -e

if [ "$ARCH" = "i586" ]; then
  DEBARCH="i386"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "i686" ]; then
  DEBARCH="i386"
  LIBDIRSUFFIX=""
elif [ "$ARCH" = "x86_64" ]; then
  DEBARCH="amd64"
  LIBDIRSUFFIX="64"
else
  echo "Package for $ARCH architecture is not available."
  exit 1
fi

bailout() {
  echo "  You must have a $NORD_GROUP group to run this script. "
  echo "  Something like this should suffice for most systems (Run as root): "
  echo "    # groupadd -g 373 $NORD_GROUP "
  echo "    # usermod -aG $NORD_GROUP \$USER (Replace \$USER with your username)"
  echo "  Then log out of the system and login again."
  exit 1
}

# Bail if group isn't valid on your system.
if ! grep -q "^$NORD_GROUP:" /etc/group; then
  bailout
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $TMP
rm -rf $PRGNAM-$VERSION
mkdir -p $PRGNAM-$VERSION

cd $PKG
ar p $CWD/${PRGNAM}_${VERSION}_${DEBARCH}.deb data.tar.gz | tar zxv

rm -rf etc usr/lib/systemd usr/lib/tmpfiles.d

if [ -d "$PKG/usr/lib/$PRGNAM" ]; then
  if [ "${LIBDIRSUFFIX:-}" = "64" ]; then
    mkdir -p "$PKG/usr/lib64"
    mv "$PKG/usr/lib/$PRGNAM" "$PKG/usr/lib64/"
    rmdir --ignore-fail-on-non-empty "$PKG/usr/lib" 2>/dev/null || true
  fi
  mkdir -p "$PKG/usr/libexec/$PRGNAM"
  mv "$PKG/usr/lib${LIBDIRSUFFIX}/$PRGNAM/nordfileshare" "$PKG/usr/libexec/$PRGNAM"
  mv "$PKG/usr/lib${LIBDIRSUFFIX}/$PRGNAM/norduserd" "$PKG/usr/libexec/$PRGNAM"
  mv "$PKG/usr/lib${LIBDIRSUFFIX}/$PRGNAM/openvpn" "$PKG/usr/libexec/$PRGNAM"
fi

mv usr/share/man usr/
rm -rf $PKG/usr/share/doc

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

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

mkdir -p $PKG/etc/rc.d
install -m 0755 $CWD/rc.$PRGNAM $PKG/etc/rc.d/rc.$PRGNAM

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