#!/bin/bash

# Copyright 2019 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.

KIND_LOG_LEVEL="1"

if ! [ -z $DEBUG ]; then
  set -x
  KIND_LOG_LEVEL="6"
fi

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

cleanup() {
  if [[ "${KUBETEST_IN_DOCKER:-}" == "true" ]]; then
    kind "export" logs --name ${KIND_CLUSTER_NAME} "${ARTIFACTS}/logs" || true
  fi

  kind delete cluster \
    --verbosity=${KIND_LOG_LEVEL} \
    --name ${KIND_CLUSTER_NAME}
}

trap cleanup EXIT

export KIND_CLUSTER_NAME=${KIND_CLUSTER_NAME:-ingress-nginx-dev}

if ! command -v kind --version &> /dev/null; then
  echo "kind is not installed. Use the package manager or visit the official site https://kind.sigs.k8s.io/"
  exit 1
fi

DIR="$( cd "$( dirname "${BASH_SOURCE[0]}" )" && pwd )"

# Use 1.0.0-dev to make sure we use the latest configuration in the helm template
export TAG=1.0.0-dev
export ARCH=${ARCH:-amd64}
export REGISTRY=ingress-controller

export DOCKER_CLI_EXPERIMENTAL=enabled

export KUBECONFIG="${KUBECONFIG:-$HOME/.kube/kind-config-$KIND_CLUSTER_NAME}"

if [ "${SKIP_CLUSTER_CREATION:-false}" = "false" ]; then
  echo "[dev-env] creating Kubernetes cluster with kind"

  export K8S_VERSION=${K8S_VERSION:-v1.19.4@sha256:796d09e217d93bed01ecf8502633e48fd806fe42f9d02fdd468b81cd4e3bd40b}

  kind create cluster \
    --verbosity=${KIND_LOG_LEVEL} \
    --name ${KIND_CLUSTER_NAME} \
    --config ${DIR}/kind.yaml \
    --retain \
    --image "kindest/node:${K8S_VERSION}"

  echo "Kubernetes cluster:"
  kubectl get nodes -o wide
fi

if [ "${SKIP_IMAGE_CREATION:-false}" = "false" ]; then
  if ! command -v ginkgo &> /dev/null; then
    go get github.com/onsi/ginkgo/ginkgo
  fi

  echo "[dev-env] building image"
  make -C ${DIR}/../../ clean-image build image
  make -C ${DIR}/../e2e-image image
fi

# Preload images used in e2e tests
KIND_WORKERS=$(kind get nodes --name="${KIND_CLUSTER_NAME}" | grep worker | awk '{printf (NR>1?",":"") $1}')

echo "[dev-env] copying docker images to cluster..."

kind load docker-image --name="${KIND_CLUSTER_NAME}" --nodes=${KIND_WORKERS} nginx-ingress-controller:e2e
kind load docker-image --name="${KIND_CLUSTER_NAME}" --nodes=${KIND_WORKERS} ${REGISTRY}/controller:${TAG}

echo "[dev-env] running e2e tests..."
make -C ${DIR}/../../ e2e-test
