#!/bin/bash

set -eu

k8s_context=${1:-""}

echo "cleaning up control-plane namespaces in k8s-context [${k8s_context}]"

if [ -z "${namespaces_controlplane=$(kubectl --context=$k8s_context get ns -oname -l linkerd.io/is-control-plane)}" ]; then
  echo 'no control-plane namespaces found' >&2
fi

if [ -z "${namespaces_helm=$(kubectl --context=$k8s_context get ns -oname -l linkerd.io/is-test-helm)}" ]; then
  echo 'no helm namespaces found' >&2
fi

echo "cleaning up data-plane namespaces in k8s-context [${k8s_context}]"

if [ -z "${namespaces_dataplane=$(kubectl --context=$k8s_context get ns -oname -l linkerd.io/is-test-data-plane)}" ]; then
  echo 'no data-plane namespaces found' >&2
fi

if [ -z "${clusterrolebindings=$(kubectl --context=$k8s_context get clusterrolebindings -oname -l linkerd.io/control-plane-ns)}" ]; then
  echo 'no clusterrolebindings found' >&2
fi

if [ -z "${clusterrolebindings_helm=$(kubectl --context=$k8s_context get clusterrolebindings -oname -l linkerd.io/is-test-helm)}" ]; then
  echo 'no helm clusterrolebindings found' >&2
fi

if [ -z "${clusterroles=$(kubectl --context=$k8s_context get clusterroles -oname -l linkerd.io/control-plane-ns)}" ]; then
  echo 'no clusterroles found' >&2
fi

if [ -z "${webhookconfigs=$(kubectl --context=$k8s_context get mutatingwebhookconfigurations -oname -l linkerd.io/control-plane-ns)}" ]; then
  echo 'no mutatingwebhookconfigurations found' >&2
fi

if [ -z "${validatingconfigs=$(kubectl --context=$k8s_context get validatingwebhookconfigurations -oname -l linkerd.io/control-plane-ns)}" ]; then
  echo 'no validatingwebhookconfigurations found' >&2
fi

if [ -z "${podsecuritypolicies=$(kubectl --context=$k8s_context get podsecuritypolicies -oname -l linkerd.io/control-plane-ns)}" ]; then
  echo 'no podsecuritypolicies found' >&2
fi

if [ -z "${customresourcedefinitions=$(kubectl --context=$k8s_context get customresourcedefinitions -l linkerd.io/control-plane-ns -oname)}" ]; then
  echo 'no customresourcedefinitions found' >&2
fi

if [ -z "${apiservices=$(kubectl --context=$k8s_context get apiservices -l linkerd.io/control-plane-ns -oname)}" ]; then
  echo 'no apiservices found' >&2
fi

if [[ $namespaces_controlplane || $namespaces_helm || $namespaces_dataplane || $clusterrolebindings || $clusterrolebindings_helm || $clusterroles || $webhookconfigs || $validatingconfigs || $podsecuritypolicies || $customresourcedefinitions || $apiservices ]]; then
  kubectl --context=$k8s_context delete $namespaces_controlplane $namespaces_helm $namespaces_dataplane $clusterrolebindings $clusterrolebindings_helm $clusterroles $webhookconfigs $validatingconfigs $podsecuritypolicies $customresourcedefinitions $apiservices
fi

echo "cleaning up rolebindings in kube-system namespace in k8s-context [${k8s_context}]"
if ! rolebindings=$(kubectl --context=$k8s_context -n kube-system get rolebindings -l linkerd.io/control-plane-ns -oname); then
  echo 'no rolebindings found in the kube-system namespace' >&2
fi
if [[ $rolebindings ]]; then
  kubectl --context=$k8s_context delete $rolebindings -n kube-system
fi