#!/usr/bin/env bash
# SPDX-License-Identifier: Apache-2.0
#
# Copyright (C) 2023 The Falco 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

if [ -z "${1}" ]; then
  echo "must provide module as first parameter"
  exit 1
fi

if [ -z "${2}" ]; then
  echo "must provide binary name as second parameter"
  exit 1
fi

if [ -z "${3}" ]; then
  echo "must provide version as third parameter"
  exit 1
fi

if [ -z "${GOBIN}" ]; then
  echo "GOBIN is not set. Must set GOBIN to install the bin in a specified directory."
  exit 1
fi

tmp_dir=$(mktemp -d -t goinstall_XXXXXXXXXX)
function clean {
  rm -rf "${tmp_dir}"
}
trap clean EXIT

rm "${GOBIN}/${2}"* || true

cd "${tmp_dir}"

# create a new module in the tmp directory
go mod init fake/mod

# install the golang module specified as the first argument
go install -tags tools "${1}@${3}"
mv "${GOBIN}/${2}" "${GOBIN}/${2}-${3}"
ln -sf "${GOBIN}/${2}-${3}" "${GOBIN}/${2}"
