#!/usr/bin/env bash
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source "$(dirname "$0")"/common_kubernetes.sh

export FLINK_JOB=org.apache.flink.examples.java.wordcount.WordCount
export FLINK_IMAGE_NAME=test_kubernetes_embedded_job
export OUTPUT_VOLUME=${TEST_DATA_DIR}/out
export OUTPUT_FILE=kubernetes_wc_out
export FLINK_JOB_PARALLELISM=1
export FLINK_JOB_ARGUMENTS='"--output", "/cache/kubernetes_wc_out"'

IMAGE_BUILD_RETRIES=3
IMAGE_BUILD_BACKOFF=2

function internal_cleanup {
    kubectl delete job flink-job-cluster
    kubectl delete service flink-job-cluster
    kubectl delete deployment flink-task-manager
}

start_kubernetes

mkdir -p $OUTPUT_VOLUME

if ! retry_times $IMAGE_BUILD_RETRIES $IMAGE_BUILD_BACKOFF "build_image ${FLINK_IMAGE_NAME} $(get_host_machine_address)"; then
    echo "ERROR: Could not build image. Aborting..."
    exit 1
fi

export USER_LIB=${FLINK_DIR}/examples/batch
kubectl create -f ${CONTAINER_SCRIPTS}/job-cluster-service.yaml
envsubst '${FLINK_IMAGE_NAME} ${FLINK_JOB} ${FLINK_JOB_PARALLELISM} ${FLINK_JOB_ARGUMENTS} ${USER_LIB}' < ${CONTAINER_SCRIPTS}/job-cluster-job.yaml.template | kubectl create -f -
envsubst '${FLINK_IMAGE_NAME} ${FLINK_JOB_PARALLELISM} ${USER_LIB}' < ${CONTAINER_SCRIPTS}/task-manager-deployment.yaml.template | kubectl create -f -
kubectl wait --for=condition=complete job/flink-job-cluster --timeout=1h
kubectl cp `kubectl get pods | awk '/task-manager/ {print $1}'`:/cache/${OUTPUT_FILE} ${OUTPUT_VOLUME}/${OUTPUT_FILE}

check_result_hash "WordCount" ${OUTPUT_VOLUME}/${OUTPUT_FILE} "${RESULT_HASH}"