#!/usr/bin/env bash
#
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements.  See the NOTICE file
# distributed with this work for additional information
# regarding copyright ownership.  The ASF licenses this file
# to you 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 -eu

SOURCE_DIR="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd)"
SOURCE_TOP_DIR="$(cd "${SOURCE_DIR}/../../" && pwd)"

if [ "$#" -ne 1 ]; then
  echo "Usage: $0 <rc>"
  echo " e.g.: $0 0"
  exit 1
fi

rc="$1"

: "${RELEASE_DEFAULT:=1}"
: "${RELEASE_PULL:=${RELEASE_DEFAULT}}"
: "${RELEASE_PUSH_TAG:=${RELEASE_DEFAULT}}"
: "${RELEASE_SIGN:=${RELEASE_DEFAULT}}"
: "${RELEASE_UPLOAD:=${RELEASE_DEFAULT}}"

if [ ! -f "${SOURCE_DIR}/.env" ]; then
  echo "You must create ${SOURCE_DIR}/.env"
  echo "You can use ${SOURCE_DIR}/.env.example as template"
  exit 1
fi
# shellcheck source=SCRIPTDIR/.env.example
. "${SOURCE_DIR}/.env"

cd "${SOURCE_TOP_DIR}"

version=$(grep -E -o '<Version>(.*)</Version>' Directory.Build.props |
  sed -E -e 's,</?Version>,,g')

if [ "${RELEASE_PULL}" -gt 0 ] || [ "${RELEASE_PUSH_TAG}" -gt 0 ]; then
  git_origin_url="$(git remote get-url origin)"
  case "${git_origin_url}" in
  git@github.com:apache/arrow-dotnet.git | https://github.com/apache/arrow-dotnet.git)
    : # OK
    ;;
  *)
    echo "This script must be ran with working copy of apache/arrow-dotnet."
    echo "The origin's URL: ${git_origin_url}"
    exit 1
    ;;
  esac
fi

if [ "${RELEASE_PULL}" -gt 0 ]; then
  echo "Ensure using the latest commit"
  git checkout main
  git pull --ff-only
fi

rc_tag="v${version}-rc${rc}"
if [ "${RELEASE_PUSH_TAG}" -gt 0 ]; then
  echo "Tagging for RC: ${rc_tag}"
  git tag -a -m "${version} RC${rc}" "${rc_tag}"
  git push origin "${rc_tag}"
fi

rc_hash="$(git rev-list --max-count=1 "${rc_tag}")"

artifacts_dir="apache-arrow-dotnet-${version}-rc${rc}"
signed_artifacts_dir="${artifacts_dir}-signed"

if [ "${RELEASE_SIGN}" -gt 0 ]; then
  git_origin_url="$(git remote get-url origin)"
  repository="${git_origin_url#*github.com?}"
  repository="${repository%.git}"

  echo "Looking for GitHub Actions workflow on ${repository}:${rc_tag}"
  run_id=""
  while true; do
    sleep 10
    echo "Waiting for run to start..."
    run_id=$(gh run list \
      --branch "${rc_tag}" \
      --jq ".[].databaseId" \
      --json 'databaseId' \
      --limit 1 \
      --repo "${repository}" \
      --workflow rc.yaml)
    if [ -n "${run_id}" ]; then
      break
    fi
    sleep 60
  done

  echo "Found GitHub Actions workflow with ID: ${run_id}"
  gh run watch \
    --exit-status "${run_id}" \
    --interval 60 \
    --repo "${repository}"

  echo "Downloading artifacts from GitHub Releases"
  gh release download "${rc_tag}" \
    --dir "${artifacts_dir}" \
    --repo "${repository}" \
    --skip-existing

  echo "Signing artifacts"
  rm -rf "${signed_artifacts_dir}"
  mkdir -p "${signed_artifacts_dir}"
  for artifact in "${artifacts_dir}"/*; do
    case "${artifact}" in
    *.asc | *.sha256 | *.sha512)
      continue
      ;;
    esac
    gpg \
      --armor \
      --detach-sig \
      --local-user "${GPG_KEY_ID}" \
      --output "${signed_artifacts_dir}/$(basename "${artifact}").asc" \
      "${artifact}"
  done
  rm -rf "${artifacts_dir}"
fi

if [ "${RELEASE_UPLOAD}" -gt 0 ]; then
  echo "Uploading signature"
  gh release upload "${rc_tag}" \
    --clobber \
    --repo "${repository}" \
    "${signed_artifacts_dir}"/*.asc
fi

rm -rf "${signed_artifacts_dir}"

echo
echo "Draft email for dev@arrow.apache.org mailing list"
echo ""
echo "---------------------------------------------------------"
cat <<MAIL
To: dev@arrow.apache.org
Subject: [VOTE][.NET] Release Apache Arrow .NET ${version} RC${rc}

Hi,

I would like to propose the following release candidate (RC${rc}) of
Apache Arrow .NET version ${version}.

This release candidate is based on commit:
${rc_hash} [1]

The source release rc${rc} is hosted at [2].

Please download, verify checksums and signatures, run the unit tests,
and vote on the release. See [3] for how to validate a release candidate.

The vote will be open for at least 72 hours.

[ ] +1 Release this as Apache Arrow .NET ${version}
[ ] +0
[ ] -1 Do not release this as Apache Arrow .NET ${version} because...

[1]: https://github.com/apache/arrow-dotnet/tree/${rc_hash}
[2]: https://github.com/apache/arrow-dotnet/releases/${rc_tag}
[3]: https://github.com/apache/arrow-dotnet/blob/main/dev/release/README.md#verify
MAIL
echo "---------------------------------------------------------"
