#!/bin/bash -eu

set -o pipefail

HOSTED_ZONE_ID="/hostedzone/Z00026583L98XLGPBWMM8"

rm -f change-resource-record-sets.json
IFS='' read -r -d '' resource_update << EOS
{
    "Comment": "Update record to reflect new IP address for a system ",
    "Changes": [
        {
            "Action": "UPSERT",
            "ResourceRecordSet": {
                "Name": "gitlab.orion-technologies.io",
                "Type": "A",
                "TTL": 300,
                "ResourceRecords": [
                    {
                        "Value": "$(wget -qO- https://ipecho.net/plain ; echo)"
                    }
                ]
            }
        }
    ]
}
EOS

echo \
"Issuing command:
    aws route53 change-resource-record-sets --hosted-zone-id ${HOSTED_ZONE_ID} --change-batch json-data-update(see script)"

result="$(aws --no-cli-auto-prompt route53 change-resource-record-sets --hosted-zone-id "${HOSTED_ZONE_ID}" --change-batch "${resource_update}")"
echo \
"Current Record Status:
    $(jq '.ChangeInfo.Status' <(echo "${result}"))"

current_time="$(date +%Y-%m-%dT%H:%M:%S)"
cat << EOF >> DDNS_Updates.log
DDNS Update made @ ${current_time}
EOF