#!/usr/bin/env bash

# Copyright 2024 Versity Software
# This file is 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.

source ./tests/rest_scripts/rest.sh

# Fields

# shellcheck disable=SC2153
bucket_name="$BUCKET_NAME"
# shellcheck disable=SC2154
key="$OBJECT_KEY"
# shellcheck disable=SC2153
version_id="$VERSION_ID"

current_date_time=$(date -u +"%Y%m%dT%H%M%SZ")

canonical_request_data=("HEAD" "/$bucket_name/$key")
if [ "$version_id" != "" ]; then
  canonical_request_data+=("versionId=$version_id")
else
  canonical_request_data+=("")
fi
canonical_request_data+=("host:$host")
if [ "$CHECKSUM" == "true" ]; then
  canonical_request_data+=("x-amz-checksum-mode:ENABLED")
fi
canonical_request_data+=("x-amz-content-sha256:UNSIGNED-PAYLOAD" "x-amz-date:$current_date_time")
if ! build_canonical_request "${canonical_request_data[@]}"; then
  log_rest 2 "error building request"
  exit 1
fi
# shellcheck disable=SC2119
create_canonical_hash_sts_and_signature

url="$AWS_ENDPOINT_URL/$bucket_name/$key"
if [ "$version_id" != "" ]; then
  url+="?versionId=$version_id"
fi
curl_command+=(curl -ksI -w "\"%{http_code}\"" "$url"
-H "\"Authorization: AWS4-HMAC-SHA256 Credential=$aws_access_key_id/$year_month_day/$aws_region/s3/aws4_request,SignedHeaders=$param_list,Signature=$signature\"")
curl_command+=("${header_fields[@]}")
curl_command+=(-o "$OUTPUT_FILE")
# shellcheck disable=SC2154
eval "${curl_command[*]}" 2>&1