#! /bin/sh
# postinst script for diaspora-installer
# copied from postinst script for hplip
# $Id: hplip.postinst,v 1.1 2005/10/15 21:39:04 hmh Exp $
#
# see: dh_installdeb(1)

set -e

# summary of how this script can be called:
#        * <postinst> `configure' <most-recently-configured-version>
#        * <old-postinst> `abort-upgrade' <new version>
#        * <conflictor's-postinst> `abort-remove' `in-favour' <package>
#          <new-version>
#        * <deconfigured's-postinst> `abort-deconfigure' `in-favour'
#          <failed-install-package> <version> `removing'
#          <conflicting-package> <version>
# for details, see http://www.debian.org/doc/debian-policy/ or
# the debian-policy package
#
# quoting from the policy:
#     Any necessary prompting should almost always be confined to the
#     post-installation script, and should be protected with a conditional
#     so that unnecessary prompting doesn't happen if a package's
#     installation fails and the `postinst' is called with `abort-upgrade',
#     `abort-remove' or `abort-deconfigure'.

check_db_status() {
echo "Checking if the database is empty..."
if [ "$DB" = "postgres" ]; then
  test "$(LANG=C su postgres -c "psql ${DB_NAME} -c \"\d\"")" = \
"No relations found."
else
  test -z "$(sudo mysql --defaults-file=/etc/mysql/debian.cnf -e "show tables from ${DB_NAME}")"
fi
}

case "$1" in
    configure)
        # Source varibales
	. /etc/diaspora/diaspora-common.conf
	cd ${diaspora_home}
        # Download diaspora from github
        . /usr/lib/diaspora-common/scripts/diaspora-download.sh
	cd ${diaspora_home}
        echo "Setting up environment varibales..."
	. /usr/lib/diaspora-common/scripts/set-env-diaspora.sh
	export RAILS_ENV=$RAILS_ENV BUNDLE_WITH=${BUNDLE_WITH} DB_NAME=${DB_NAME} ENVIRONMENT_URL=$ENVIRONMENT_URL

        echo "Installing latest version of bundler..."
	gem install bundler
	ln -sf /usr/local/bin/bundle ${diaspora_home}/bin/bundle

	echo "Setting build flags for Sigar as workaround for \
https://github.com/hyperic/sigar/issues/60 ..."
        su diaspora -s /bin/sh -c "bundle config --local build.sigar '--with-cppflags=\"-fgnu89-inline\"'"

	echo "Installing gems with rubygems ..."
	su diaspora -s /bin/sh -c "bundle install --path vendor/bundle --with ${BUNDLE_WITH} --without development test"

	# Check if the db is already present
	if check_db_status ; then
	echo "Initializing database..."
		su diaspora -s /bin/sh -c 'bundle exec rake db:schema:load'
	else
		echo "diaspora_production database is not empty, skipping database setup"
		echo "Running migrations..."
	        su diaspora -s /bin/sh -c 'bundle exec rake db:migrate'
	fi

	echo "Precompiling assets..."
	su diaspora -s /bin/sh -c 'bundle exec rake tmp:cache:clear assets:precompile'
        echo "Remove backup..."
        rm -rf ${diaspora_home}-backup.*

        # Starting diaspora
        service diaspora start

	# Running final rake tasks
	. /usr/lib/diaspora-common/scripts/rake-tasks.sh
        ;;

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

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


#DEBHELPER#

exit 0
