#!/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)

# load include file
source $(dirname $0)/vhost.sh

help()
{
  thisfilename=$(basename -- "$0")
  echo "Disables Varnish config for specified domain (VirtualHost)."
  echo ""
  echo "usage: $thisfilename -d <domain> [-h]"
  echo ""
  echo "  -h            Print this help."
  echo "  -d <domain>   Domain name (VirtualHost) to disable Varnish for."
  echo ""
  echo "                Varnish is proxied through Apache. This disables the"
  echo "                Apache proxy to Varnish and removes the varnish config."
  exit
}

vhost:getoptions "$@"

# check for domain (virtualhost)
if [[ -z $domain ]]; then
  echo "domain is required"
  exit
fi

# grab macro line from virtualhost config
if macro_vhost_line=`grep -m 1 "Use .*" /etc/apache2/sites-available/$domain.conf` ; then
  macro_name=`echo "$macro_vhost_line" | awk '{print $2}'`
else
  echo "$domain is not configured with mod_macro"
  exit 1
fi

# make sure Varnish is already enabled
if [[ $macro_name =~ ^.*Varnish$ ]]; then
  # set new macro_name
  macro_name=`echo $macro_name | sed -e 's|Varnish$||'`
  vhost_enable="-d $domain -m $macro_name"
else
  echo "Varnish is not enabled for $domain"
  exit 1
fi

# check if VHost macro is for a Subdomain or Alias
if [[ "$macro_name" == *"Subdomain"* ]] || [[ "$macro_name" == *"Alias"* ]]; then
  macro_var=`echo "$macro_vhost_line" | awk '{print $5}'`
  vhost_enable="$vhost_enable -o $macro_var"
fi

/usr/local/bin/vhost-enable.sh $vhost_enable

if [[ -f /etc/varnish/sites.d/$domain ]]; then
  rm /etc/varnish/sites.d/$domain
  /usr/local/bin/vhost-varnish-update-sites.sh $vhost_enable
  # uncomment to flush varnish cache
  # systemctl is-active --quiet varnish && systemctl reload --quiet varnish
fi