#!/usr/bin/env bash
# Copyright 2020 The Kubernetes Authors.
#
# 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.

set -o errexit
set -o nounset
set -o pipefail

# Install kubectl
REPO_ROOT=$(dirname "${BASH_SOURCE[0]}")/..
KUBECTL=$(which kubectl)
KIND=$(which kind)
#make --directory="${REPO_ROOT}" "${KUBECTL##*/}" "${KIND##*/}"

# desired cluster name; default is "kind"
KIND_CLUSTER_NAME="development-interlinked"
KIND_KUBERNETES_VERSION=${KIND_KUBERNETES_VERSION:=v1.24.15}

if [[ "$("${KIND}" get clusters)" =~ .*"${KIND_CLUSTER_NAME}".* ]]; then

    echo "Removing old containers and images...";
    docker stop kind-registry || true;
    docker rm kind-registry || true;
    docker stop development-interlinked-control-plane || true;
    docker rm development-interlinked-control-plane || true;
    docker rmi --force $(docker images | grep 'localhost:5000/cell-action-task-crd') || true
    docker rmi --force $(docker images | grep 'localhost:5000/cell-scheduler-api-local') || true
    
    # kill existing background processes if it is already running
    lsof -i tcp:8000 | awk 'NR!=1 {print $2}'| sort -nu| xargs kill || true # kitten mittens
    lsof -i tcp:3000 | awk 'NR!=1 {print $2}'| sort -nu| xargs kill || true # cell scheduler api port forwarding
    
    # delete kind cluster
    kind delete cluster --name development-interlinked
    
fi

reg_name='kind-registry'
reg_port="${KIND_REGISTRY_PORT:-5000}"

# create registry container unless it already exists
running="$(docker inspect -f '{{.State.Running}}' "${reg_name}" 2>/dev/null || true)"
if [ "${running}" != 'true' ]; then
  docker run -d --restart=always -p "127.0.0.1:${reg_port}:5000" --name "${reg_name}" registry:2
fi

# create a cluster with the local registry enabled in containerd
cat <<EOF | "${KIND}" create cluster --name "${KIND_CLUSTER_NAME}" --config=-
kind: Cluster
apiVersion: kind.x-k8s.io/v1alpha4
nodes:
  - role: control-plane
    image: kindest/node:${KIND_KUBERNETES_VERSION}
  - role: worker
    image: kindest/node:${KIND_KUBERNETES_VERSION}
  - role: worker
    image: kindest/node:${KIND_KUBERNETES_VERSION}
  - role: worker
    image: kindest/node:${KIND_KUBERNETES_VERSION}
containerdConfigPatches:
- |-
  [plugins."io.containerd.grpc.v1.cri".registry.mirrors."localhost:${reg_port}"]
    endpoint = ["http://${reg_name}:5000"]
EOF

# connect the registry to the cluster network
# (the network may already be connected)
docker network connect "kind" "${reg_name}" || true

# Document the local registry
# https://github.com/kubernetes/enhancements/tree/master/keps/sig-cluster-lifecycle/generic/1755-communicating-a-local-registry
cat <<EOF | kubectl apply -f -
apiVersion: v1
kind: ConfigMap
metadata:
  name: local-registry-hosting
  namespace: kube-public
data:
  localRegistryHosting.v1: |
    host: "localhost:${reg_port}"
    help: "https://kind.sigs.k8s.io/docs/user/local-registry/"
EOF

"${KUBECTL}" wait node "${KIND_CLUSTER_NAME}-control-plane" --for=condition=ready --timeout=90s

export IMG=localhost:5000/cell-action-task-crd
kubectl apply -f https://github.com/cert-manager/cert-manager/releases/download/v1.10.0/cert-manager.yaml
