#!/bin/sh

set -e
set -x

DATA_DIR=/srv/ishtar
CONFIG_PATH=/etc/ishtar
INSTANCES_FILE=$CONFIG_PATH/instances

case "$1" in
    configure)
        mkdir -p $CONFIG_PATH
        if [ ! -f $CONFIG_PATH/config ]; then
            cp /usr/share/python3-django-ishtar/install/config.template $CONFIG_PATH/config ;
        fi
        . $CONFIG_PATH/config
        export LANG=$ISHTAR_LOCALE.UTF-8
        if [ "$(locale 2>&1 >/dev/null|wc -l)" != 0 ]; then
            echo r "Unable to set LANG=$LANG properly"
            echo "Try: 'dpkg-reconfigure locales' or install the 'locales-all' package."
            echo "If you want to use another locale, modify /etc/ishtar/config properly."
            exit 1
        fi
        instances="$( (cat $INSTANCES_FILE 2>/dev/null || true) | xargs )"
        if [ -n "$instances" ]; then
            echo "updading instances found in $INSTANCES_FILE: $instances"
            messages_compiled="";
            for instance in $instances; do
                if [ ! $messages_compiled ]; then
                  (cd $DATA_DIR; python3 $DATA_DIR/$instance/manage.py compilemessages);
                  messages_compiled="ok";
                fi
                # The upgrade procedure below was built from the "update"
                # target and its dependencies in the upstream Makefile:
                echo "updating $instance"
                cd $DATA_DIR/$instance
                # migrate
                python3 manage.py migrate
                # "collectstatic"
                python3 manage.py collectstatic --noinput
                echo "updating $instance: OK"
            done
            echo "updating all instances: OK"

            # the assumption is that nginx and uwsgi were configured
            # through ishtar-prepare-instance, so let's restart them
            # unconditionally:
            invoke-rc.d uwsgi restart
            invoke-rc.d nginx restart
            echo "restarting uwsgi and nginx: OK"
        else
            echo "found no instances to upgrade in $INSTANCES_FILE"
        fi
    ;;

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

    ;;

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