#!/usr/bin/with-contenv /bin/sh

set -eu

PG_HOME=/var/lib/postgresql/data

if [ -f $PG_HOME/package-version ]; then
  [ ! -f /backup/postgresql/dump ] || [ "$(cat $PG_HOME/package-version)" == "$POSTGRES_VERSION" ] && exit
  rm ${PG_HOME}.old || true
  mv $PG_HOME ${PG_HOME}.old
fi

as_pg() {
  s6-setuidgid postgres "$@"
}

as_pg initdb -D $PG_HOME
as_pg pg_ctl -D $PG_HOME -w start

if [ -f /backup/postgresql/dump ]; then
  as_pg psql -d postgres -f /backup/postgresql/dump
else
  as_pg createuser icinga
  as_pg createdb -O icinga -E UTF8 icinga
  as_pg psql -d icinga < /usr/share/icinga2-ido-pgsql/schema/pgsql.sql

  as_pg createuser grafana
  as_pg createdb -O grafana -E UTF8 grafana
fi

echo "$POSTGRES_VERSION" > $PG_HOME/package-version
as_pg pg_ctl -D $PG_HOME -w stop