#!/bin/sh
set -ev

cd $(realpath $(dirname "${0}"))/install

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

# Create database
export CKAN_PWD=$(head -c 18 /dev/urandom | base64 | tr -d '+/=')
export CKAN_DS_PWD=$(head -c 18 /dev/urandom | base64 | tr -d '+/=')
envsubst <createdb.sql | lxc-attach -u 5432 -g 5432 postgres -- psql

# Configure CKAN Solr core
lxc-attach -u 8983 -g 8983 solr -- solr create -p 8983 -c ckan
cp srv/solr/data/ckan/conf/schema.xml /srv/solr/data/ckan/conf/schema.xml
cp srv/solr/data/ckan/conf/solrconfig.xml /srv/solr/data/ckan/conf/solrconfig.xml
chown 8983:8983 /srv/solr/data/ckan/conf/schema.xml
service solr restart

# Configure CKAN
mkdir -p /srv/ckan/conf /srv/ckan/data
export CKAN_SECRET=$(head -c 18 /dev/urandom | base64 | tr -d '+/=')
export CKAN_UUID=$(cat /proc/sys/kernel/random/uuid)
envsubst <srv/ckan/conf/ckan.ini >/srv/ckan/conf/ckan.ini
cp srv/ckan/conf/who.ini /srv/ckan/conf/who.ini
chown -R 8003:8003 /srv/ckan/data

# Set "production values" (increases performance) only if the DEBUG environment variable is not set
if [ ${DEBUG:-0} -eq 0 ]; then
    sed -i 's/debug = true/debug = false/' /srv/ckan/conf/ckan.ini
fi

# Populate database
lxc-execute ckan -- paster --plugin=ckan db init -c /etc/ckan/ckan.ini
lxc-execute ckan -- paster --plugin=ckanext-spatial spatial initdb -c /etc/ckan/ckan.ini
lxc-execute ckan -- paster --plugin=ckan datastore set-permissions -c /etc/ckan/ckan.ini | lxc-attach -u 5432 -g 5432 postgres -- psql

# Create admin account
export CKAN_ADMIN_USER="admin"
export CKAN_ADMIN_UUID=$(cat /proc/sys/kernel/random/uuid)
export CKAN_ADMIN_APIKEY=$(cat /proc/sys/kernel/random/uuid)
export CKAN_ADMIN_PWD=$(head -c 12 /dev/urandom | base64 | tr -d '+/=')
export CKAN_ADMIN_HASH=$(lxc-execute ckan -- python -c "from passlib.hash import pbkdf2_sha512;print pbkdf2_sha512.encrypt('${CKAN_ADMIN_PWD}')")
export CKAN_ADMIN_EMAIL="admin@example.com"
envsubst <adminpwd.sql | lxc-attach -u 5432 -g 5432 postgres -- psql ckan

# Install cron job
cp etc/periodic/hourly/ckan /etc/periodic/hourly/ckan

# Install service
cp etc/init.d/ckan /etc/init.d/ckan
rc-update -u

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

# Stop services required for setup
[ ! -z ${STOP_POSTGRES} ] && service postgres stop
[ ! -z ${STOP_REDIS} ] && service redis stop
[ ! -z ${STOP_SOLR} ] && service solr stop

# Register application
vmmgr register-app ckan ckan "${CKAN_ADMIN_USER}" "${CKAN_ADMIN_PWD}"