#!/bin/sh
set -e

SOURCE_DIR=$(realpath $(dirname "${0}"))/setup

# Check prerequisites
# TODO: Have setup prereqs in a manifest file
for SERVICE in postgres redis solr; do
    [ ! -e /run/openrc/started/${SERVICE} ] && service ${SERVICE} start && STOP_SERVICES="${STOP_SERVICES} ${SERVICE}"
done

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

# Configure CKAN Solr core
lxc-attach -u 8983 -g 8983 solr -- /usr/bin/solr create -p 8983 -c ckan
cp ${SOURCE_DIR}/srv/solr/data/ckan/conf/schema.xml /srv/solr/data/ckan/conf/schema.xml
cp ${SOURCE_DIR}/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=$(head -c 18 /dev/urandom | base64)
export CKAN_UUID=$(cat /proc/sys/kernel/random/uuid)
envsubst <${SOURCE_DIR}/srv/ckan/conf/ckan.ini >/srv/ckan/conf/ckan.ini
cp ${SOURCE_DIR}/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 -- /usr/bin/paster --plugin=ckan db init -c /etc/ckan/ckan.ini
lxc-execute ckan -- /usr/bin/paster --plugin=ckanext-spatial spatial initdb -c /etc/ckan/ckan.ini
lxc-execute ckan -- /usr/bin/paster --plugin=ckan datastore set-permissions -c /etc/ckan/ckan.ini | lxc-attach -u 5432 -g 5432 postgres -- /usr/bin/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=$(head -c 12 /dev/urandom | base64)
export CKAN_ADMIN_HASH=$(lxc-execute ckan -- /usr/bin/python -c "from passlib.hash import pbkdf2_sha512;print pbkdf2_sha512.encrypt('${CKAN_ADMIN_PWD}')")
export CKAN_ADMIN_EMAIL="admin@example.com"
envsubst <${SOURCE_DIR}/adminpwd.sql | lxc-attach -u 5432 -g 5432 postgres -- /usr/bin/psql ckan
vmmgr update-login ckan "${CKAN_ADMIN_USER}" "${CKAN_ADMIN_PWD}"

# Install cron job
cp ${SOURCE_DIR}/etc/periodic/hourly/ckan /etc/periodic/hourly/ckan

# Install service
cp ${SOURCE_DIR}/etc/init.d/ckan /etc/init.d/ckan
rc-update -u

# Stop services required for setup
for SERVICE in ${STOP_SERVICES}; do
    service ${SERVICE} stop
done