#!/bin/bash
#
# vhost-stack
# https://git.stack-source.com/msb/vhost-stack
# Copyright (c) 2022 Matthew Saunders Brown <matthewsaundersbrown@gmail.com>
# GNU General Public License v3.0+ (see COPYING or https://www.gnu.org/licenses/gpl-3.0.txt)


if [ "${EUID}" -ne 0 ]; then
  echo "You must be root to run this installer."
  exit
fi

# update repo
git pull

# update scripts in bin
chmod 755 bin/*
readarray -t bin_script_array < <(ls -1 bin/)
for bin_script in "${bin_script_array[@]}"; do
  if [ -f /usr/local/bin/$bin_script ]; then
    if ! diff -q bin/$bin_script /usr/local/bin/$bin_script ; then
      echo "Updating /usr/local/bin/$bin_script"
      cp bin/$bin_script /usr/local/bin/$bin_script
      echo
    fi
  else
    echo "Adding new script /usr/local/bin/$bin_script"
    cp bin/$bin_script /usr/local/bin/$bin_script
    echo
  fi
done

# update scripts in bin
chmod 755 sbin/*
readarray -t sbin_script_array < <(ls -1 sbin/)
for sbin_script in "${sbin_script_array[@]}"; do
  if [ -f /usr/local/sbin/$sbin_script ]; then
    if ! diff -q sbin/$sbin_script /usr/local/sbin/$sbin_script ; then
      echo "Updating /usr/local/sbin/$sbin_script"
      cp sbin/$sbin_script /usr/local/sbin/$sbin_script
      echo
    fi
  else
    echo "Adding new script /usr/local/sbin/$sbin_script"
    cp sbin/$sbin_script /usr/local/sbin/$sbin_script
    echo
  fi
done

# check etc configs for diffs
readarray -t etc_configs_array < <(find etc/ -type f)
for etc_config in "${etc_configs_array[@]}"; do
  if [ -f /$etc_config ]; then
    if ! diff -q $etc_config /$etc_config ; then
      echo To update run:
      echo diff $etc_config /$etc_config
      echo cp $etc_config /$etc_config
      echo
    fi
  else
    echo "Adding new config file /$etc_config"
    cp $etc_config /$etc_config
    echo
  fi
done

# update html/status.php
if ! diff -q html/status.php /srv/www/html/status.php ; then
  cp html/status.php /srv/www/html/status.php
  chmod 644 /srv/www/html/status.php
  chown vhost:vhost /srv/www/html/status.php
  echo "/srv/www/html/status.php updated"
  echo
fi

# update libexec script
if ! diff -q libexec/command-not-found-handle /usr/local/libexec/command-not-found-handle ; then
  cp libexec/command-not-found-handle /usr/local/libexec/command-not-found-handle
  chmod 755 /usr/local/libexec/command-not-found-handle
  echo "/usr/local/libexec/command-not-found-handle updated"
  echo
fi

# check for systemd updates
systemdConfigs=(`ls -1 systemd/`)
for systemdConfig in "${systemdConfigs[@]}"
do
  if ! diff -q systemd/$systemdConfig /usr/local/lib/systemd/system/$systemdConfig ; then
    cp systemd/$systemdConfig /usr/local/lib/systemd/system/$systemdConfig
    chmod 644 /usr/local/lib/systemd/system/$systemdConfig
    systemctl daemon-reload
    systemctl --quiet try-reload-or-restart $systemdConfig
    echo "systemd/$systemdConfig updated"
    echo
  fi
done