#!/bin/bash

HOST="${1}"
PORT="${2}"
TOKENID="${3}@${4}!${5}"
TOKENSECRET="${6}"

datastores=$(wget --header="Authorization: PBSAPIToken=${TOKENID}:${TOKENSECRET}" --content-on-error -q -O - "https://${HOST}:${PORT}/api2/json/admin/datastore")

IFS='
'
for datastore in $(echo "${datastores}" |jq --raw-output '.data[].store'); do
	namespaces=$(wget --header="Authorization: PBSAPIToken=${TOKENID}:${TOKENSECRET}" --content-on-error -q -O - "https://${HOST}:${PORT}/api2/json/admin/datastore/${datastore}/namespace")

	for namespace in $(echo "${namespaces}" |jq --raw-output '.data[].ns'); do
		# group backups by backup-type and backup-id, only get the backup of each group (thus the map) with max backup-time and add datastore and namespace to each backup
		temp=$(wget --header="Authorization: PBSAPIToken=${TOKENID}:${TOKENSECRET}" --content-on-error -q -O - "https://${HOST}:${PORT}/api2/json/admin/datastore/${datastore}/snapshots?ns=${namespace}" |jq ".data |group_by([.\"backup-type\", .\"backup-id\"]) |map(max_by(.\"backup-time\")) |map(.datastore |= \"${datastore}\") |map(.namespace |= \"${namespace}\")")

		# remove array symbols ([ and ])
		temp="${temp:1}"
		temp="${temp::-1}"

		if [[ "${#temp}" -ne 0 ]]; then
			backups="${backups}${temp},"
		fi
	done
done

# remove last set comma
ret="[${backups::-1}]"

echo $ret