#!/bin/sh
set -ev

cd $(realpath $(dirname "${0}"))/install
export TEMPLATE=${TEMPLATE:-"default"}

# Check prerequisites
[ ! -e /run/openrc/started/postgres ] && service postgres start && STOP_POSTGRES=1

# Create PostgreSQL user and database
export SAHANADEMO_PWD=$(head -c 18 /dev/urandom | base64)
envsubst <createdb.sql | lxc-attach -u 5432 -g 5432 postgres -- psql

# Prepare persistent directory structure
mkdir -p /srv/sahana-demo/conf /srv/sahana-demo/data/databases /srv/sahana-demo/data/uploads /srv/sahana-demo/data/${TEMPLATE}
chown -R 8001:8001 /srv/sahana-demo/conf /srv/sahana-demo/data
cp -rp /var/lib/lxc/shared/sahana/srv/web2py/applications/eden/models/. /srv/sahana-demo/conf
cp -rp /var/lib/lxc/shared/sahana/srv/web2py/applications/eden/modules/templates/${TEMPLATE}/. /srv/sahana-demo/data/${TEMPLATE}

# Configure Sahana
export SAHANADEMO_HMAC=$(head -c 18 /dev/urandom | base64)
export SAHANADEMO_ADMIN_USER=admin@example.com
export SAHANADEMO_ADMIN_PWD=$(head -c 12 /dev/urandom | base64)
envsubst <srv/sahana-demo/conf/000_config.py >/srv/sahana-demo/conf/000_config.py
if [ ${TEMPLATE} == "default" ]; then
    envsubst <masterUsers.csv >/srv/sahana-demo/data/default/users/masterUsers.csv
else
    mkdir -p /var/lib/lxc/sahana-demo/sahana-demo/srv/web2py/applications/eden/modules/templates/default/users
    envsubst <masterUsers.csv >/var/lib/lxc/sahana-demo/sahana-demo/srv/web2py/applications/eden/modules/templates/default/users/masterUsers.csv
    chown -R 8001:8001 /var/lib/lxc/sahana-demo/sahana-demo/srv/web2py
fi

# Replace template in LXC container mount definition
sed -i "s/default/${TEMPLATE}/g" /var/lib/lxc/sahana-demo/config

# Populate database
lxc-execute -u 8001 -g 8001 sahana-demo -- sh -c 'cd /srv/web2py; ./web2py.py -S eden -M -R applications/eden/static/scripts/tools/noop.py'

# Install service
envsubst <etc/init.d/sahana-demo >/etc/init.d/sahana-demo
chmod +x /etc/init.d/sahana-demo

# Install config update script
cp srv/sahana-demo/update-conf.sh /srv/sahana-demo/update-conf.sh

# Stop services required for build
[ ! -z ${STOP_POSTGRES} ] && service postgres stop

# Register application
vmmgr register-app sahana-demo "${SAHANADEMO_ADMIN_USER}" "${SAHANADEMO_ADMIN_PWD}"