#!/bin/sh
## SPDX-FileCopyrightText: 2024 - 2025 Benjamin Grande M. S. <ben.grande.b@gmail.com>
##
## SPDX-License-Identifier: AGPL-3.0-or-later

set -eu

conf="${HOME}/.bitcoin/conf.d/dbcache.conf"
domid="$(xenstore-read -- domid)"
xenstore_mem_dir="/local/domain/${domid}/memory"
if test -f /var/run/qubes-service/meminfo-writer; then
  mem_KiB="$(xenstore-read -- "${xenstore_mem_dir}/hotplug-max")"
else
  mem_KiB="$(xenstore-read -- "${xenstore_mem_dir}/static-max")"
fi
cache_MiB=$((mem_KiB/1024))
cache="$((cache_MiB*80/100))"
printf '%s\n' "dbcache=${cache}" | tee -- "${conf}" >/dev/null