#!/bin/sh

set -e

# Debconf
. /usr/share/debconf/confmodule

case "$1" in
  purge)
    # continue below
    ;;
  *)
    exit 0
    ;;
esac

CONFDIR="/etc/apache2"
HOST=$(hostname -f)
DOMAIN=$(hostname -d)

# purge_conf()
#
#   Purge Apache2 configuration files located in specified directory.
#
purge_conf () {
  local ctype dir file

  ctype="$1"
  dir="$2"

  case "$ctype" in
    site|conf)
      # continue below
      ;;
    *)
      return 1
      ;;
  esac

  if [ -d "${dir}" ] && [ -n "$(ls -A ${dir}/)" ]; then
    for file in ${dir}/*.conf; do
      if [ -f "$file" ]; then
        if egrep -q "^## Begin - Generated by CARNET package apache2-cn$" "$file"; then
          a2dis$ctype -p -f -q "`basename "$file" .conf`" || exit $?
          rm -f "$file"
        fi
      fi
    done
  fi
}

# Configuration generated by this CARNET package.
echo "CN: Purging $PKG configuration for Apache2."
purge_conf site ${CONFDIR}/sites-available
purge_conf conf ${CONFDIR}/conf-available

# Remove default DocumentRoot if there's only a one line index.html there
docroots="/var/www/$HOST /var/www/www.$DOMAIN"

if [ -d "/var/www" ]; then
  for docroot in $docroots; do
    if [ -d $docroot ]; then
      if [ "x$(echo ${docroot}/*)" = "x${docroot}/index.html" ]; then
        if [ "$(wc -l ${docroot}/index.html | awk '{print $1}')" -eq 1 ]; then
          echo "CN: Removing document root directory ${docroot}."
          rm -f $docroot/index.html
          rmdir $docroot || true
        fi
      fi
    fi
  done
fi

#DEBHELPER#

exit 0