#!/bin/bash

CONF=etc/postgresql.conf
PG_CTL=`which pg_ctl 2>/dev/null`

set -e

pwd
. $APPSH_BASEDIR/.app/lib/app-conf

PG_CTL_OPTIONS="`get_conf $APPSH_BASEDIR $APPSH_NAME $APPSH_INSTANCE postgresql.pg_ctl_options`"

if [ -z "$PG_CTL" ]
then
  echo "Could not find pg_ctl. Is your env.PATH correctly set?".
  exit 1
fi

if [ -z "$DATA" ]
then
  DATA=../../../data
fi

if [ ! -d $DATA ]
then
  echo "Missing data dir: $DATA"
  exit 1
fi

if [ -z "$LOG" ]
then
  LOG=../../../log
fi

if [ ! -d $LOG ]
then
  echo "Missing log dir: $LOG, creating"
  mkdir -p $LOG
fi

LOG=$LOG/postgresql.log

if [ ! -r $CONF ]
then
  echo "Missing config file: $CONF"
  exit 1
fi

# TODO: figure out how if pg_ctl exits with sane exit codes.

x=`dirname $CONF`
CONF=`cd $x; pwd`/`basename $CONF`
DATA=`cd $DATA; pwd`
x=`dirname $LOG`
LOG=`cd $x; pwd`/`basename $LOG`

case "$APPSH_METHOD" in
  start)
    echo "Starting postgresql"
    exec $PG_CTL start \
      -D "$DATA" \
	  -o "$PG_CTL_OPTIONS -c config_file=$CONF" \
	  -l $LOG &
    ;;
  stop)
    echo "Stopping postgresql"
    exec $PG_CTL stop \
      -D "$DATA" \
	  -o "$PG_CTL_OPTIONS -c config_file=$CONF"
    ;;
  *)
    echo "Unknown method: $APPSH_METHOD"
    exit 0
    ;;
esac