#!/usr/bin/env bash

# Copyright 2017 The Openstack-Helm Authors.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.

set -o pipefail

PASSWORD={{ .Values.database.root_password | quote }}

MYSQL="mysql -u root --password=${PASSWORD}"

if [ ! $($MYSQL -e 'select 1') ]; then
    echo "Could not SELECT 1" 1>&2
    exit 1
fi

# Set this late, so that we can give a nicer error message above.
set -o errexit

CLUSTER_STATUS=$($MYSQL -e "show status like 'wsrep_cluster_status'" | tail -n 1 | cut -f 2)
if [ "x${CLUSTER_STATUS}" != "xPrimary" ]; then
    echo "Not in primary cluster: '${CLUSTER_STATUS}'" 1>&2
    exit 1
fi

WSREP_READY=$($MYSQL -e "show status like 'wsrep_ready'" | tail -n 1 | cut -f 2)
if [ "x${WSREP_READY}" != "xON" ]; then
    echo "WSREP not ready: '${WSREP_READY}'" 1>&2
    exit 1
fi

WSREP_STATE=$($MYSQL -e "show status like 'wsrep_local_state_comment'" | tail -n 1 | cut -f 2)
if [ "x${WSREP_STATE}" != "xSynced" ]; then
    echo "WSREP not synced: '${WSREP_STATE}'" 1>&2
    exit 1
fi

echo "${POD_NAME} ready." 1>&2

exit 0