#!/bin/bash -e

. /usr/share/debconf/confmodule
. /etc/default/chef-solr

export PATH=$PATH:/sbin:/usr/sbin:/bin:/usr/bin

TEMPLATE=/usr/share/chef-solr/solr.rb
TMPDIR=`mktemp -d` # used for holding temp files
TMPFILE=`mktemp -p ${TMPDIR}` # used for holding rendered template
CONFIGFILE=/etc/chef/solr.rb

rabbitmq_has_vhost() {
  rabbitmqctl list_vhosts | grep -qx "^/chef$"
}

rabbitmq_has_user() {
  # using -q for grep causes rabbit to terminate on do_boot, redirect
  # STDOUT to /dev/null instead.
  rabbitmqctl list_users | grep -x "^chef$" 1>/dev/null
}

rabbitmq_has_perms() {
  rabbitmqctl list_permissions -p /chef | egrep -qx "chef[[:space:]]+.*{3}"
}

case "$1" in
  configure)
    if [ ! -f $CONFIGFILE ]; then
      db_get chef-solr/amqp_password && amqp_pass="$RET"
			tsed=`mktemp -p ${TMPDIR}`
			cat << EOF > $tsed
s/amqp_pass \".*\"/amqp_pass \"${amqp_pass}\"/g
EOF
      if ! rabbitmq_has_vhost; then
        rabbitmqctl add_vhost /chef
      fi
      if ! rabbitmq_has_user; then
        # TODO: Bug filed with upstream to allow password from a file.
        rabbitmqctl add_user chef $amqp_pass
      fi
      if ! rabbitmq_has_perms; then
        rabbitmqctl set_permissions -p /chef chef ".*" ".*" ".*"
      fi
      if [ -n $amqp_pass ]; then
        sed -f $tsed $TEMPLATE > $TMPFILE
      fi
      ucf --debconf-ok $TMPFILE $CONFIGFILE
      test -f $CONFIGFILE && chmod 0640 $CONFIGFILE
			rm -rf $TMPDIR
      if ! getent passwd chef > /dev/null; then
        adduser --system --quiet \
          --home /var/lib/chef --no-create-home \
          --shell /bin/bash --group --gecos "Chef Daemon" chef
      fi
      chown -R $USER:$GROUP /etc/chef
      chown -R $USER:$GROUP /var/lib/chef
      chown -R $USER:$GROUP /var/log/chef
      chown -R $USER:$GROUP /var/cache/chef
      chown -R $USER:$GROUP /var/run/chef
    fi
  ;;

  abort-upgrade|abort-remove|abort-deconfigure)
  ;;

  *)
    echo "postinst called with unknown argument \`$1'" >&2
    exit 1
  ;;
esac

db_stop

# dh_installdeb will replace this with shell code automatically
# generated by other debhelper scripts.

#DEBHELPER#

exit 0