#!/bin/bash
#
# vmail-stack
# https://git.stack-source.com/msb/vmail-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)/vmail.sh

help()
{
  thisfilename=$(basename -- "$0")
  echo "$thisfilename"
  echo "Delete domain and all associated email accounts from the vmail system."
  echo ""
  echo "usage: $thisfilename -d <domain> [-h]"
  echo ""
  echo "  -h          Print this help."
  echo "  -d          Domain to be removed from the vmail system."
  exit
}

vmail:getoptions "$@"

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

# build query
dbcmd="mysql --defaults-extra-file=$MYSQL_CONNECTION_INFO_FILE"
dbcmdopts="-s -r -N -e"

# check if domain exists in vmail database
dbquery="SELECT id FROM vm_domains WHERE domain='$domain';"
domains_id=`$dbcmd $dbcmdopts "$dbquery"`

if [[ "$domains_id" -gt '0' ]] ; then
  # domain exists, delete from all vmail tables
  # single delete should be sufficient for vm_* tables due to ON DELETE CASCADE foreign key references
  dbquery="DELETE FROM vm_domains WHERE domain='$domain';"
  eval $dbcmd $dbcmdopts "\"$dbquery\""
  dbquery="DELETE FROM sa_userpref WHERE username LIKE '%@$domain';"
  eval $dbcmd $dbcmdopts "\"$dbquery\""
  dbquery="DELETE FROM vm_greylisting WHERE recipient LIKE '%@$domain';"
  eval $dbcmd $dbcmdopts "\"$dbquery\""
  # this should be sufficient for rc due to ON DELETE CASCADE foreign key references
  dbquery="DELETE FROM rc_users WHERE username LIKE '%@$domain';"
  eval $dbcmd $dbcmdopts "\"$dbquery\""
elif [[ -z $domains_id ]] ; then
  echo "ERROR: $domain does not exist in vmail database."
  exit 1
else
  echo "ERROR: System error querying vmail database"
  exit 1
fi

# disable webmail
if [[ -f /etc/apache2/sites-available/mail.$domain.conf ]]; then
  /usr/local/bin/vmail-webmail-disable.sh -d $domain
fi

# remove the dovecot config
if [[ -f /etc/dovecot/sites.d/mail.$domain.conf ]]; then
  /usr/local/bin/vmail-dovecot-disable.sh -d $domain
fi

# remove dkim files
if [[ -f /etc/ssl/dkim/$domain.selector ]]; then
  /usr/local/bin/vmail-dkim-del.sh -d $domain
fi

# remove let's encrypt files
if [[ -f /etc/letsencrypt/renewal/mail.$domain.conf ]]; then
  if [[ -f /usr/local/bin/letsencrypt-del.sh ]]; then
    /usr/local/bin/letsencrypt-del.sh -d mail.$domain
  fi
fi

# remove maildirs
if [[ -d "$VMAIL_DIR/$domain" ]] ; then
  /usr/bin/rm --recursive --force $VMAIL_DIR/$domain
fi