#!/usr/bin/env bash

# Copyright 2021 The Rook Authors. All rights reserved.
#
# 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 -xe

#############
# VARIABLES #
#############
: "${BLOCK:=$(sudo lsblk --paths | awk '/14G/ {print $1}' | head -1)}"
NETWORK_ERROR="connection reset by peer"
SERVICE_UNAVAILABLE_ERROR="Service Unavailable"
INTERNAL_ERROR="INTERNAL_ERROR"

#############
# FUNCTIONS #
#############

function install_deps() {
  sudo wget https://github.com/mikefarah/yq/releases/download/3.4.1/yq_linux_amd64 -O /usr/local/bin/yq
  sudo chmod +x /usr/local/bin/yq
}

function print_k8s_cluster_status() {
  kubectl cluster-info
  kubectl get pods -n kube-system
}

function use_local_disk() {
  BLOCK_DATA_PART=${BLOCK}1
  sudo dmsetup version || true
  sudo swapoff --all --verbose
  if mountpoint -q /mnt; then
    sudo umount /mnt
    # search for the device since it keeps changing between sda and sdb
    sudo wipefs --all --force "$BLOCK_DATA_PART"
  else
    # it's the hosted runner!
    sudo sgdisk --zap-all --clear --mbrtogpt -g -- "${BLOCK}"
    sudo dd if=/dev/zero of="${BLOCK}" bs=1M count=10 oflag=direct
    sudo parted -s "${BLOCK}" mklabel gpt
  fi
  sudo lsblk
}

function use_local_disk_for_integration_test() {
  sudo swapoff --all --verbose
  sudo umount /mnt
  # search for the device since it keeps changing between sda and sdb
  PARTITION="${BLOCK}1"
  sudo wipefs --all --force "$PARTITION"
  sudo lsblk
  # add a udev rule to force the disk partitions to ceph
  # we have observed that some runners keep detaching/re-attaching the additional disk overriding the permissions to the default root:disk
  # for more details see: https://github.com/rook/rook/issues/7405
  echo "SUBSYSTEM==\"block\", ATTR{size}==\"29356032\", ACTION==\"add\", RUN+=\"/bin/chown 167:167 $PARTITION\"" | sudo tee -a /etc/udev/rules.d/01-rook.rules
}

function create_partitions_for_osds() {
  tests/scripts/create-bluestore-partitions.sh --disk "$BLOCK" --osd-count 2
  sudo lsblk
}

function create_bluestore_partitions_and_pvcs() {
  BLOCK_PART="$BLOCK"2
  DB_PART="$BLOCK"1
  tests/scripts/create-bluestore-partitions.sh --disk "$BLOCK" --bluestore-type block.db --osd-count 1
  tests/scripts/localPathPV.sh "$BLOCK_PART" "$DB_PART"
}

function create_bluestore_partitions_and_pvcs_for_wal(){
  BLOCK_PART="$BLOCK"3
  DB_PART="$BLOCK"1
  WAL_PART="$BLOCK"2
  tests/scripts/create-bluestore-partitions.sh --disk "$BLOCK" --bluestore-type block.wal --osd-count 1
  tests/scripts/localPathPV.sh "$BLOCK_PART" "$DB_PART" "$WAL_PART"
}

function build_rook() {
  build_type=build
  if [ -n "$1" ]; then
    build_type=$1
  fi
  GOPATH=$(go env GOPATH) make clean
  for _ in $(seq 1 3); do
    if ! o=$(make -j"$(nproc)" IMAGES='ceph' "$build_type"); then
      case "$o" in
        *"$NETWORK_ERROR"*)
          echo "network failure occurred, retrying..."
          continue
        ;;
        *"$SERVICE_UNAVAILABLE_ERROR"*)
          echo "network failure occurred, retrying..."
          continue
        ;;
        *"$INTERNAL_ERROR"*)
          echo "network failure occurred, retrying..."
          continue
        ;;
        *)
          # valid failure
          exit 1
      esac
    fi
    # no errors so we break the loop after the first iteration
    break
  done
  # validate build
  tests/scripts/validate_modified_files.sh build
  docker images
  if [[ "$build_type" == "build" ]]; then
    docker tag "$(docker images | awk '/build-/ {print $1}')" rook/ceph:master
  fi
}

function build_rook_all() {
  build_rook build.all
}

function validate_yaml() {
  cd cluster/examples/kubernetes/ceph
  kubectl create -f crds.yaml -f common.yaml
  # skipping folders and some yamls that are only for openshift.
  manifests="$(find . -maxdepth 1 -type f -name '*.yaml' -and -not -name '*openshift*' -and -not -name 'scc*')"
  with_f_arg="$(echo "$manifests" | awk '{printf " -f %s",$1}')" # don't add newline
  # shellcheck disable=SC2086 # '-f manifest1.yaml -f manifest2.yaml etc.' should not be quoted
  kubectl create ${with_f_arg} --dry-run=client
}

function create_cluster_prerequisites() {
  cd cluster/examples/kubernetes/ceph
  kubectl create -f crds.yaml -f common.yaml
}

function deploy_cluster() {
  cd cluster/examples/kubernetes/ceph
  kubectl create -f operator.yaml
  sed -i "s|#deviceFilter:|deviceFilter: ${BLOCK/\/dev\/}|g" cluster-test.yaml
  kubectl create -f cluster-test.yaml
  kubectl create -f object-test.yaml
  kubectl create -f pool-test.yaml
  kubectl create -f filesystem-test.yaml
  kubectl create -f rbdmirror.yaml
  kubectl create -f filesystem-mirror.yaml
  kubectl create -f nfs-test.yaml
  kubectl create -f toolbox.yaml
}

function wait_for_prepare_pod() {
  timeout 180 bash <<-'EOF'
    while true; do
      if [[ "$(kubectl -n rook-ceph get pod -l app=rook-ceph-osd-prepare --field-selector=status.phase=Running)" -gt 1 ]]; then
        break
      fi
      sleep 5
    done
    kubectl -n rook-ceph logs --follow pod/$(kubectl -n rook-ceph get pod -l app=rook-ceph-osd-prepare -o jsonpath='{.items[0].metadata.name}')
EOF
  timeout 60 bash <<-'EOF'
  until kubectl -n rook-ceph logs $(kubectl -n rook-ceph get pod -l app=rook-ceph-osd,ceph_daemon_id=0 -o jsonpath='{.items[*].metadata.name}') --all-containers || true; do
    echo "waiting for osd container"
    sleep 1
  done
EOF
  kubectl -n rook-ceph describe job/"$(kubectl -n rook-ceph get pod -l app=rook-ceph-osd-prepare -o jsonpath='{.items[*].metadata.name}')" || true
  kubectl -n rook-ceph describe deploy/rook-ceph-osd-0 || true
}

function wait_for_ceph_to_be_ready() {
  DAEMONS=$1
  OSD_COUNT=$2
  mkdir test
  tests/scripts/validate_cluster.sh "$DAEMONS" "$OSD_COUNT"
  kubectl -n rook-ceph get pods
}

function check_ownerreferences() {
  curl -L https://github.com/kubernetes-sigs/kubectl-check-ownerreferences/releases/download/v0.2.0/kubectl-check-ownerreferences-linux-amd64.tar.gz -o kubectl-check-ownerreferences-linux-amd64.tar.gz
  tar xzvf kubectl-check-ownerreferences-linux-amd64.tar.gz
  chmod +x kubectl-check-ownerreferences
  ./kubectl-check-ownerreferences -n rook-ceph
}

function create_LV_on_disk() {
  sudo sgdisk --zap-all "${BLOCK}"
  VG=test-rook-vg
  LV=test-rook-lv
  sudo pvcreate "$BLOCK"
  sudo vgcreate "$VG" "$BLOCK" || sudo vgcreate "$VG" "$BLOCK" || sudo vgcreate "$VG" "$BLOCK"
  sudo lvcreate -l 100%FREE -n "${LV}" "${VG}"
  tests/scripts/localPathPV.sh /dev/"${VG}"/${LV}
  kubectl create -f cluster/examples/kubernetes/ceph/crds.yaml
  kubectl create -f cluster/examples/kubernetes/ceph/common.yaml
}

function deploy_first_rook_cluster() {
  BLOCK=$(sudo lsblk|awk '/14G/ {print $1}'| head -1)
  cd cluster/examples/kubernetes/ceph/
  kubectl create -f crds.yaml -f common.yaml -f operator.yaml
  yq w -i -d1 cluster-test.yaml spec.dashboard.enabled false
  yq w -i -d1 cluster-test.yaml spec.storage.useAllDevices false
  yq w -i -d1 cluster-test.yaml spec.storage.deviceFilter "${BLOCK}"1
  kubectl create -f cluster-test.yaml -f toolbox.yaml
}

function wait_for_rgw_pods() {
  for _ in {1..120}; do
    if [ "$(kubectl -n "$1" get pod -l app=rook-ceph-rgw --field-selector=status.phase=Running|wc -l)" -gt 1 ] ; then
        echo "rgw pods found"
        break
    fi
    echo "waiting for rgw pods"
    sleep 5;
  done

}

function deploy_second_rook_cluster() {
  BLOCK=$(sudo lsblk|awk '/14G/ {print $1}'| head -1)
  cd cluster/examples/kubernetes/ceph/
  NAMESPACE=rook-ceph-secondary envsubst < common-second-cluster.yaml | kubectl create -f -
  sed -i 's/namespace: rook-ceph/namespace: rook-ceph-secondary/g' cluster-test.yaml
  yq w -i -d1 cluster-test.yaml spec.storage.deviceFilter "${BLOCK}"2
  yq w -i -d1 cluster-test.yaml spec.dataDirHostPath "/var/lib/rook-external"
  yq w -i toolbox.yaml metadata.namespace rook-ceph-secondary
  kubectl create -f cluster-test.yaml -f toolbox.yaml
}

function write_object_to_cluster1_read_from_cluster2() {
  cd cluster/examples/kubernetes/ceph/
  echo "[default]" > s3cfg
  echo "host_bucket = no.way.in.hell" >> ./s3cfg
  echo "use_https = False" >> ./s3cfg
  fallocate -l 1M ./1M.dat
  echo "hello world" >> ./1M.dat
  CLUSTER_1_IP_ADDR=$(kubectl -n rook-ceph get svc rook-ceph-rgw-multisite-store -o jsonpath="{.spec.clusterIP}")
  BASE64_ACCESS_KEY=$(kubectl -n rook-ceph get secrets realm-a-keys -o jsonpath="{.data.access-key}")
  BASE64_SECRET_KEY=$(kubectl -n rook-ceph get secrets realm-a-keys -o jsonpath="{.data.secret-key}")
  ACCESS_KEY=$(echo ${BASE64_ACCESS_KEY} | base64 --decode)
  SECRET_KEY=$(echo ${BASE64_SECRET_KEY} | base64 --decode)
  s3cmd -v -d --config=s3cfg --access_key=${ACCESS_KEY} --secret_key=${SECRET_KEY} --host=${CLUSTER_1_IP_ADDR} mb s3://bkt
  s3cmd -v -d --config=s3cfg --access_key=${ACCESS_KEY} --secret_key=${SECRET_KEY} --host=${CLUSTER_1_IP_ADDR} put ./1M.dat s3://bkt
  CLUSTER_2_IP_ADDR=$(kubectl -n rook-ceph-secondary get svc rook-ceph-rgw-zone-b-multisite-store -o jsonpath="{.spec.clusterIP}")
  timeout 60 bash <<EOF
until s3cmd -v -d --config=s3cfg --access_key=${ACCESS_KEY} --secret_key=${SECRET_KEY} --host=${CLUSTER_2_IP_ADDR} get s3://bkt/1M.dat 1M-get.dat --force; do
  echo "waiting for object to be replicated"
  sleep 5
done
EOF
  diff 1M.dat 1M-get.dat
}

FUNCTION="$1"
shift # remove function arg now that we've recorded it
# call the function with the remainder of the user-provided args
if ! $FUNCTION "$@"; then
  echo "Call to $FUNCTION was not successful" >&2
  exit 1
fi