#!/bin/bash

set -e

_USERNAME=anastasis-httpd
_GROUPNAME=www-data

# Set permissions for sqlite3 file
# (for when we support sqlite3 in the future)
dbc_dbfile_owner="${_USERNAME}:${_GROUPNAME}"
dbc_dbfile_perms="0600"

# 1st argument will be the SECURITYTOKEN to use.
apache_install() {
  echo -n "Starting Apache setup..."
  mkdir -p /etc/apache2/conf-available
  if [ ! -f /etc/apache2/conf-available/anastasis.conf ]; then
    echo -n "..."
    cat /etc/anastasis/apache.conf | sed -e "s/%SECURITYTOKEN%/$1/" >/etc/apache2/conf-available/anastasis.conf
  fi
  echo "Done"
}

# 1st argument will be the SECURITYTOKEN to use.
nginx_install() {
  echo -n "Starting Nginx setup..."
  mkdir -p /etc/nginx/conf-available
  if [ ! -f /etc/nginx/conf-available/anastasis.conf ]; then
    echo -n "..."
    cat /etc/anastasis/nginx.conf | sed -e "s/%SECURITYTOKEN%/$1/" >/etc/nginx/conf-available/anastasis.conf
  fi
  echo "Done"
}

. /usr/share/debconf/confmodule

case "${1}" in
configure)
  db_start
  db_version 2.0

  # Read default values
  CONFIG_FILE="/etc/default/anastasis"
  TALER_HOME="/var/lib/taler/"

  echo "  User setup"
  # Creating taler users if needed
  if ! getent passwd ${_USERNAME} >/dev/null; then
    adduser --quiet --system --ingroup ${_GROUPNAME} --home ${TALER_HOME} ${_USERNAME}
  fi

  # Setup postgres database (needs dbconfig-pgsql package)
  if [ -f /usr/share/dbconfig-common/dpkg/postinst.pgsql ]; then
    . /usr/share/dbconfig-common/dpkg/postinst.pgsql
    dbc_pgsql_createdb_encoding="UTF8"
    dbc_go anastasis "$@"
  fi

  cat >"/etc/systemd/system/anastasis-httpd.service" <<EOF
EOF

  # Configure Webserver
  echo "  Configuring Webserver"
  db_get anastasis/reconfigure-webserver
  webservers="$RET"
  for webserver in $webservers; do
    webserver=${webserver%,}
    if [ "$webserver" = "nginx" ]; then
      nginx_install "$SECRET"
    else
      apache_install "$SECRET"
    fi
  done
  echo "Done."

  db_stop

  # Cleaning
  echo "All done."

  ;;

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

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

#DEBHELPER#

exit 0