#!/usr/bin/env bash
# Copyright Amazon.com Inc. or its affiliates. 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.
SCRIPT_ROOT="$(cd "$(dirname "${BASH_SOURCE[0]}")" && pwd -P)"
REPO="homebrew-tap"
ORIGIN_ORG="eks-anywhere-brew-pr-bot"
UPSTREAM_ORG="aws"
YQ_LATEST_RELEASE_URL="https://github.com/mikefarah/yq/releases/latest/download/yq_linux_amd64"

if ! command -v yq &> /dev/null
then
  wget -qO /usr/local/bin/yq $YQ_LATEST_RELEASE_URL
  chmod a+x /usr/local/bin/yq
fi

curl --silent 'https://anywhere-assets.eks.amazonaws.com/releases/eks-a/manifest.yaml' -o release.yaml

latest_release_version=$(cat release.yaml | yq e '.spec.latestVersion')

latest_release=$(cat release.yaml | yq e '.spec.releases[] | select(.version == "'$latest_release_version'")' >> latest_release.yaml)

for os in darwin linux
do
  KEY_URL="${os}_url"
  KEY_SHA="${os}_sha256"
  export $KEY_URL=$(cat latest_release.yaml | yq e ".eksABinary.${os}.uri")
  export $KEY_SHA=$(cat latest_release.yaml | yq e ".eksABinary.${os}.sha256")
done

# removes the char v from string like => v1.0.1
latest_release_version="${latest_release_version:1}"
export VERSION=$latest_release_version

EKSA_TEMPLATE="eks-anywhere.rb.tmpl"
EKSA_FORMULA="${SCRIPT_ROOT}/../../../${ORIGIN_ORG}/${REPO}/Formula/eks-anywhere.rb"

if [ ! -f "$EKSA_TEMPLATE" ]
then
  echo "Template file ${EKSA_TEMPLATE} does not exist in this working folder, exiting.."
  exit 1
fi

if [ ! -f "$EKSA_FORMULA" ]
then
  echo "Can not find the ${EKSA_FORMULA} file, exiting.."
  exit 1
fi

envsubst '$VERSION:$darwin_url:$darwin_sha256:$linux_url:$linux_sha256' \
 < "${EKSA_TEMPLATE}" \
 > "${EKSA_FORMULA}"

echo "v${VERSION}"

rm release.yaml
rm latest_release.yaml