#!/bin/bash

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 sbin
chmod 755 sbin/*
readarray -t s_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 libexec script
if ! diff -q libexec/vmail-quota-warning.sh /usr/local/libexec/vmail-quota-warning.sh ; then
  cp libexec/vmail-quota-warning.sh /usr/local/libexec/vmail-quota-warning.sh
  chmod 750 /usr/local/libexec/vmail-quota-warning.sh
  chown dovecot:mail /usr/local/libexec/vmail-quota-warning.sh
  echo "/usr/local/libexec/vmail-quota-warning.sh updated"
  echo
fi