#!/bin/bash

# Copyright 2022  Eugen Wissner, Dachau, Germany
# 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.


PRGNAM=webex

# Allow $ARCH to be preset before running the script.  This is useful in the
# case where someone is running a 32-bit chroot environment under an x86_64
# kernel:
ARCH=${ARCH:-$(uname -m)}

case "$ARCH" in
  i?86) DEBARCH="i386" ; LIBDIRSUFFIX="" ; ARCH=i386 ;;
  x86_64) DEBARCH="amd64" ; LIBDIRSUFFIX="64" ; ARCH=x86_64 ;;
  *) echo "Package for $(uname -m) architecture is not available." ; exit 1 ;;
esac
# Get the version from the Debian/Ubuntu .deb (thanks to Fred Richards):
VERSION=$(ar p Webex.deb control.tar.xz 2> /dev/null | tar JxO ./control 2> /dev/null | grep Version | awk '{print $2}' | cut -d- -f1)
if [ -z "$VERSION" ]; then # try to use control.tar.gz instead:
  VERSION=$(ar p Webex.deb control.tar.gz 2> /dev/null | tar zxO ./control 2> /dev/null | grep Version | awk '{print $2}' | cut -d- -f1)
fi
BUILD=${BUILD:-1}

CWD=$(pwd)
TMP=${TMP:-/tmp}
PKG=$TMP/package-$PRGNAM
OUTPUT=${OUTPUT:-/tmp}

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG
ar p $CWD/Webex.deb data.tar.xz | tar xJv || exit 1
chown -R root:root .
chmod -R u+w,go+r-w,a-s .

# Make sure top-level perms are correct:
chmod 0755 .

# Install a .desktop launcher:
mkdir -p $PKG/usr/share/applications
mv $PKG/opt/Webex/bin/webex.desktop $PKG/usr/share/applications

# Link the binary:
mkdir -p $PKG/usr/bin
ln -s /opt/Webex/bin/CiscoCollabHost $PKG/usr/bin/webex

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

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