#!/bin/bash
set -euo pipefail

# Available env vars:
#   $TMP_DIR
#   $CLUSTER_NAME
#   $KUBECONFIG
#   $NODE_TERMINATION_HANDLER_DOCKER_REPO
#   $NODE_TERMINATION_HANDLER_DOCKER_TAG
#   $WEBHOOK_DOCKER_REPO
#   $WEBHOOK_DOCKER_TAG
#   $AEMM_URL
#   $AEMM_VERSION

function fail_and_exit {
    echo "❌ K8s Emit Events Test failed $CLUSTER_NAME ❌"
    exit "${1:-1}"
}

echo "Starting K8s Emit Events Test for Node Termination Handler"

SCRIPTPATH="$( cd "$(dirname "$0")" ; pwd -P )"

common_helm_args=()
[[ "${TEST_WINDOWS-}" == "true" ]] && common_helm_args+=(--set targetNodeOs="windows")
[[ -n "${NTH_WORKER_LABEL-}" ]] && common_helm_args+=(--set nodeSelector."$NTH_WORKER_LABEL")

anth_helm_args=(
  upgrade
  --install
  --namespace kube-system
  "$CLUSTER_NAME-anth"
  "$SCRIPTPATH/../../config/helm/aws-node-termination-handler/"
  --set instanceMetadataURL="${INSTANCE_METADATA_URL:-"http://$AEMM_URL:$IMDS_PORT"}"
  --set image.repository="$NODE_TERMINATION_HANDLER_DOCKER_REPO"
  --set image.tag="$NODE_TERMINATION_HANDLER_DOCKER_TAG"
  --set enableSpotInterruptionDraining="true"
  --set enableScheduledEventDraining="true"
  --set emitKubernetesEvents="true"
  --wait
  --force
)
[[ -n "${NODE_TERMINATION_HANDLER_DOCKER_PULL_POLICY-}" ]] &&
    anth_helm_args+=(--set image.pullPolicy="$NODE_TERMINATION_HANDLER_DOCKER_PULL_POLICY")
[[ ${#common_helm_args[@]} -gt 0 ]] &&
    anth_helm_args+=("${common_helm_args[@]}")

set -x
helm "${anth_helm_args[@]}"
set +x

emtp_helm_args=(
  upgrade
  --install
  --namespace default
  "$CLUSTER_NAME-emtp"
  "$SCRIPTPATH/../../config/helm/webhook-test-proxy/"
  --set webhookTestProxy.image.repository="$WEBHOOK_DOCKER_REPO"
  --set webhookTestProxy.image.tag="$WEBHOOK_DOCKER_TAG"
  --wait
)
[[ -n "${WEBHOOK_DOCKER_PULL_POLICY-}" ]] &&
    emtp_helm_args+=(--set webhookTestProxy.image.pullPolicy="$WEBHOOK_DOCKER_PULL_POLICY")
[[ ${#common_helm_args[@]} -gt 0 ]] &&
    emtp_helm_args+=("${common_helm_args[@]}")

set -x
helm "${emtp_helm_args[@]}"
set +x

aemm_helm_args=(
  upgrade
  --install
  --namespace default
  "$CLUSTER_NAME-aemm"
  "$AEMM_DL_URL"
  --set aemm.IMDSv2="true"
  --set servicePort="$IMDS_PORT"
  --wait
)
[[ ${#common_helm_args[@]} -gt 0 ]] &&
    aemm_helm_args+=("${common_helm_args[@]}")

set -x
retry 5 helm "${aemm_helm_args[@]}"
set +x

TAINT_CHECK_CYCLES=15
TAINT_CHECK_SLEEP=15

DEPLOYED=0

for i in $(seq 1 $TAINT_CHECK_CYCLES); do
    if [[ $(kubectl get deployments regular-pod-test -o jsonpath='{.status.unavailableReplicas}') -eq 0 ]]; then
        echo "✅ Verified regular-pod-test pod was scheduled and started!"
        DEPLOYED=1
        break
    fi
    echo "Setup Loop $i/$TAINT_CHECK_CYCLES, sleeping for $TAINT_CHECK_SLEEP seconds"
    sleep $TAINT_CHECK_SLEEP
done

if [[ $DEPLOYED -eq 0 ]]; then
    echo "❌ regular-pod-test pod deployment failed"
    fail_and_exit 2
fi

test_node="${TEST_NODE:-$CLUSTER_NAME-worker}"
for i in $(seq 1 $TAINT_CHECK_CYCLES); do
    if kubectl get events | tr -s " " | grep "CordonAndDrain node/${test_node} Node successfully cordoned and drained" >/dev/null; then
        echo "✅ Verified CordonAndDrain was emitted as a k8s event!"
        echo "✅ K8s Emit Events Test Passed $CLUSTER_NAME! ✅"s
        exit 0
    fi

    echo "Assertion Loop $i/$TAINT_CHECK_CYCLES, sleeping for $TAINT_CHECK_SLEEP seconds"
    sleep $TAINT_CHECK_SLEEP
done


echo "❌ k8s CordonAndDrain event was not emitted to k8s"

fail_and_exit 1