#!/bin/bash
#
# Copyright (c) 2020 Oracle and/or its affiliates.
#
# 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.
#

#
# Wait for Kafka to start and create test topics:
# topic messaging-test-topic-1 and topic messaging-test-topic-2
#

ZOOKEEPER_URL=localhost:2181
KAFKA_TOPICS="/opt/kafka/bin/kafka-topics.sh --if-not-exists --zookeeper $ZOOKEEPER_URL"

while sleep 2; do
  brokers=$(echo dump | nc localhost 2181 | grep brokers)
  echo "Checking if Kafka is up: ${brokers}"
  if [[ -z $brokers ]]; then
    echo "KAFKA IS UP !!!"

    echo "Creating test topics"
    bash "$KAFKA_TOPICS" \
      --create \
      --replication-factor 1 \
      --partitions 10 \
      --topic messaging-test-topic-1
    bash "$KAFKA_TOPICS" \
      --create \
      --replication-factor 1 \
      --partitions 10 \
      --topic messaging-test-topic-2

    exit 0
  fi
done
