#!/bin/bash

# update repo
git pull

# update wp-cli
if [ -f /usr/local/bin/wp ]; then
  /usr/local/bin/wp cli update --yes --quiet --allow-root
else
  # wp-cli not found, download & install
  curl -O https://raw.githubusercontent.com/wp-cli/builds/gh-pages/phar/wp-cli.phar
  sudo mv wp-cli.phar /usr/local/bin/wp
  chmod +x /usr/local/bin/wp
fi

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

# check bash completion config for update
if ! diff -q etc/bash_completion.d/wp-cli /etc/bash_completion.d/wp-cli ; then
  cp etc/bash_completion.d/wp-cli /etc/bash_completion.d/wp-cli
  chmod 644 /etc/bash_completion.d/wp-cli
  echo "bash completion config updated"
  echo
fi

# check wp-cron.sh for update
if ! diff -q usr/local/sbin/wp-cron.sh /usr/local/sbin/wp-cron.sh ; then
  cp usr/local/sbin/wp-cron.sh /usr/local/sbin/wp-cron.sh
  chmod 755 /usr/local/sbin/wp-cron.sh
  echo "wp-cron.sh updated"
  echo
fi

# check systemd timer for update
if ! diff -q usr/local/lib/systemd/system/wp-cron.service /usr/local/lib/systemd/system/wp-cron.service ; then
  cp usr/local/lib/systemd/systemd/wp-cron.service /usr/local/lib/systemd/system/wp-cron.service
  chmod 644 /usr/local/lib/systemd/system/wp-cron.service
  echo "wp-cron.service updated"
  echo
fi
if ! diff -q usr/local/lib/systemd/system/wp-cron.timer /usr/local/lib/systemd/system/wp-cron.timer ; then
  cp usr/local/lib/systemd/system/wp-cron.timer /usr/local/lib/systemd/system/wp-cron.timer
  chmod 644 /usr/local/lib/systemd/system/wp-cron.timer
  echo "wp-cron.timer updated"
  echo
fi

# check fail2ban wordpress configs
if [[ -d /etc/fail2ban/ ]]; then
  RESTARTF2B=false
  if ! diff -q etc/fail2ban/filter.d/wp-auth.conf /etc/fail2ban/filter.d/wp-auth.conf ; then
    cp etc/fail2ban/filter.d/wp-auth.conf /etc/fail2ban/filter.d/wp-auth.conf
    chmod 644 /etc/fail2ban/filter.d/wp-auth.conf
    echo "fail2ban/filter.d/wp-auth.conf updated"
    echo
    RESTARTF2B=true
  fi
  if ! diff -q etc/fail2ban/filter.d/xmlrpc.conf /etc/fail2ban/filter.d/xmlrpc.conf ; then
    cp etc/fail2ban/filter.d/xmlrpc.conf /etc/fail2ban/filter.d/xmlrpc.conf
    chmod 644 /etc/fail2ban/filter.d/xmlrpc.conf
    echo "fail2ban/filter.d/xmlrpc.conf updated"
    echo
    RESTARTF2B=true
  fi
    if ! diff -q etc/fail2ban/jail.d/wp-auth.conf /etc/fail2ban/jail.d/wp-auth.conf ; then
    cp etc/fail2ban/jail.d/wp-auth.conf /etc/fail2ban/jail.d/wp-auth.conf
    chmod 644 /etc/fail2ban/jail.d/wp-auth.conf
    echo "fail2ban/jail.d/wp-auth.conf updated"
    echo
    RESTARTF2B=true
  fi
  if ! diff -q etc/fail2ban/jail.d/xmlrpc.conf /etc/fail2ban/jail.d/xmlrpc.conf ; then
    cp etc/fail2ban/jail.d/xmlrpc.conf /etc/fail2ban/jail.d/xmlrpc.conf
    chmod 644 /etc/fail2ban/jail.d/xmlrpc.conf
    echo "fail2ban/jail.d/xmlrpc.conf updated"
    echo
    RESTARTF2B=true
  fi
  if [[ $RESTARTF2B = true ]]; then
    systemctl restart fail2ban
  fi
else
  echo "Fail2ban not installed, skipping fail2ban wordpress configs."
fi