#!/bin/bash

# Slackware build script for ejabberd-bin

# Copyright 2024, Alexander Verbovetsky, Moscow, Russia
# 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=ejabberd-bin
VERSION=${VERSION:-24.07}
BUILD=${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 [ "$ARCH" != "x86_64" -a "$ARCH" != "aarch64" ]; then
  echo "Only x86_64 and aarch64 are supported."
  exit 1
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 ! grep ^ejabberd: /etc/group 2>&1 > /dev/null; then
  echo "  A group "ejabberd" must exist prior to running this script."
  echo "    # groupadd -g 370 ejabberd"
  exit 1
elif ! grep ^ejabberd: /etc/passwd 2>&1 > /dev/null; then
  echo "  A user "ejabberd" must exist prior to running this script."
  echo "    # useradd -u 370 -g 370 -s /sbin/nologin -d /var/lib/ejabberd ejabberd"
  exit 1
elif ! grep ^ejabberd:.*:/var/lib/ejabberd: /etc/passwd 2>&1 > /dev/null; then
  echo "  Please change the user "ejabberd" home directory to /var/lib/ejabberd."
  echo "    # usermod -d /var/lib/ejabberd ejabberd"
  exit 1
fi

rm -rf $PKG
mkdir -p $TMP $PKG $OUTPUT
cd $PKG
ar p $CWD/${PRGNAM%-bin}_${VERSION}-*.deb data.tar.gz | tar xvz

chown -R root:root .
find -L . \
 \( -perm 777 -o -perm 775 -o -perm 750 -o -perm 711 -o -perm 555 \
  -o -perm 511 \) -exec chmod 755 {} \; -o \
 \( -perm 666 -o -perm 664 -o -perm 640 -o -perm 600 -o -perm 444 \
  -o -perm 440 -o -perm 400 \) -exec chmod 644 {} \;

rm -r usr/share lib etc
mkdir -p etc var/{lib,log}/ejabberd
chown -R ejabberd:ejabberd var/{lib,log}/ejabberd
chmod 700 var/{lib,log}/ejabberd
rm -f opt/ejabberd/conf/*.pem
mv opt/ejabberd/conf etc/ejabberd
rmdir opt/ejabberd/{database,logs,}
chown root:ejabberd etc/ejabberd/* opt/ejabberd-*/lib/epam-*/priv/bin/epam
chmod 640 etc/ejabberd/*
chmod 4750 opt/ejabberd-*/lib/epam-*/priv/bin/epam

sed -i -e '/^ca_file:/,/^[^ ]/{//!d}' -e '/^certfiles:/,/^[^ ]/{//!d}' \
  -e '/\(^ca_file:\|^certfiles:\)/d' etc/ejabberd/ejabberd.yml

find -L etc/ejabberd -type f -print0 | xargs -0 -I {} mv {} {}.new

sed -i -e 's|/opt/ejabberd/conf|/etc/ejabberd|' \
  -e 's|/opt/ejabberd/logs|/var/log/ejabberd|' \
  -e 's|/opt/ejabberd/database/\$ERLANG_NODE|/var/lib/ejabberd|' \
  opt/ejabberd-$VERSION/bin/ejabberdctl

find $PKG -print0 | xargs -0 file | grep -e "executable" -e "shared object" | grep ELF \
  | cut -f 1 -d : | xargs strip --strip-unneeded 2> /dev/null || true

mkdir -p etc/rc.d
cat $CWD/rc.ejabberd > etc/rc.d/rc.ejabberd.new

mkdir -p usr/share/bash-completion/completions
cat $CWD/ejabberdctl.bc > usr/share/bash-completion/completions/ejabberdctl

mkdir -p usr/man/man5
cat $CWD/ejabberd.yml.5 | gzip -9c > usr/man/man5/ejabberd.yml.5.gz

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

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

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