#!/bin/bash
################################################################################
#   Copyright (c) 2020 Nordix Foundation.                                      #
#                                                                              #
#   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.                                             #
################################################################################

# This script to undeploy the NONRTRIC


COMPONENTS="controlpanel a1controller a1simulator policymanagementservice enrichmentservice rappcatalogueservice nonrtricgateway"
RECIPE_NAMESPACE=$(kubectl get cm --all-namespaces | grep nonrtric-recipe | awk '{print $1}')
kubectl get configmap  -n $RECIPE_NAMESPACE nonrtric-recipe  -o jsonpath='{.data.recipe}' > /tmp/recipe.yaml

if [ ! -s /tmp/recipe.yaml ]; then
    echo "NONRTRIC recipe is not found. Are you sure it's deployed successfully?"
    exit 0
fi

COMMON_BLOCK=$(cat /tmp/recipe.yaml | awk '/^common:/{getline; while ($0 ~ /^ +.*|^ *$/) {print $0; if (getline == 0) {break}}}')
NAMESPACE_BLOCK=$(cat /tmp/recipe.yaml | awk '/^  namespace:/{getline; while ($0 ~ /^    .*|^ *$/) {print $0; if (getline == 0) {break}}}')
NONRTRIC_NAMESPACE=$(echo "$NAMESPACE_BLOCK" | awk '/^ *nonrtric:/{print $2}')
RELEASE_PREFIX=$(echo "$COMMON_BLOCK" | awk '/^ *releasePrefix:/{print $2}')
INSTALL_KONG=$(cat /tmp/recipe.yaml | awk '/^  installKong:/{print $2}')

if [ "$INSTALL_KONG" = true ];then
   echo "Uninstalling Kong"
   helm delete kong-nonrtric --namespace kong
fi

echo "Undeploying NONRTRIC components [$COMPONENTS]"

IS_HELM3=$(helm version -c --short|grep -e "^v3")
HELM_FLAG=''
if [ $IS_HELM3 ]
then
  HELM_FLAG=' -n '${NONRTRIC_NAMESPACE:-nonrtric}
else
  HELM_FLAG='--purge'
fi

helm delete ${HELM_FLAG} ${RELEASE_PREFIX}

kubectl delete cm -n ${NONRTRIC_NAMESPACE:-nonrtric} nonrtric-recipe

kubectl delete ns ${NONRTRIC_NAMESPACE:-nonrtric}