#!/bin/bash

set -e
trap onexit ERR

function onexit() {
	EXITCODE=$?
        if [ $EXITCODE -eq 102 ]; then
          echo "Database access not correctly configured"
          echo "Check your configuration and run manually the database update:"
          echo "cd /usr/share/gmod/chado/"
	  echo "export GMOD_ROOT=/usr/share/gmod/chado"
	  echo "export PGPASSFILE=/usr/share/gmod/chado/pgpass"
	  echo "For a new installation:"
          echo "make load_schema"
	  echo "make prepdb"
          echo "OR"
          echo "make update to upgrade the schema from a previous install"
          exit 0
        fi
        if [ $EXITCODE -eq 100 ]; then
          make load_schema
          make prepdb
          make clean &> /dev/null
          rm -f /usr/share/gmod/chado/pgpass
	  exit 0
        fi
        if [ $EXITCODE -eq 101 ]; then
          make update
          make clean &> /dev/null
          rm -f /usr/share/gmod/chado/pgpass
          exit 0 
        fi
    exit $EXITCODE
}


case "$1" in
    configure)
	mkdir -p /usr/share/gmod/chado/lib/Bio/Chado/
        if [ -e /etc/gmod/gmod-chado.conf ]; then
	  export GMOD_ROOT=/usr/share/gmod/chado
          export CHADO_DB_NAME=gmod-chado
          export CHADO_DB_USERNAME=chado
          . /etc/gmod/gmod-chado.conf
	  cd /usr/share/gmod/chado
	  CHADOTMP=`mktemp -d`
	  perl Makefile.PL update GMOD_ROOT=/usr/share/gmod/chado DBNAME=$CHADO_DB_NAME  DBUSER=$DBUSER DBPASS=$DBPASS DBHOST=$DBHOST DBPORT=$DBPORT DBDRIVER=PostgreSQL  SIMPLE=Y RECONFIGURE=1 LOCAL_TMP=$CHADOTMP &> /dev/null
	  rm -rf $CHADOTMP
	  export PATH=$PATH:/usr/share/gmod/chado/bin
	  touch /usr/share/gmod/chado/pgpass
          chmod 0600 /usr/share/gmod/chado/pgpass
	  echo "*:*:*:$DBUSER:$DBPASS" > /usr/share/gmod/chado/pgpass
	  export PGPASSFILE=/usr/share/gmod/chado/pgpass
	  # Need to detect with testdb if access to db is ok or need to be configured
	  perl /usr/share/gmod/chado/bin/testdb.pl
        else
           echo "Application is not yet configured."
	   echo "To install or upgrade the database:"
	   echo " - create a user in the database"
	   echo " - configure the application"
	   echo " - perl /usr/share/gmod/chado/Makefile.PL update"
        fi
    ;;

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

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