#!/usr/bin/env bash
# install-backup-freshness-timer.sh — install/refresh the daily backup-freshness
# alert as a systemd USER timer on nh3-dev (the only host with SSH to all backup
# stores + althing-cli). Idempotent; re-run after editing the wrapper/check.
# Requires linger (loginctl enable-linger lkraven) so it fires without a login.
set -euo pipefail
UNIT_DIR="$HOME/.config/systemd/user"
REPO=/home/lkraven/development/eshpfi-management
mkdir -p "$UNIT_DIR"

cat > "$UNIT_DIR/backup-freshness.service" <<EOF
[Unit]
Description=Fleet backup freshness check + althing alert
After=network-online.target

[Service]
Type=oneshot
# Both are required: postbox has no default post-office address by design, and
# a systemd user unit inherits neither from the interactive shell. Omitting
# ALTHING_POST_OFFICE is why swapping althing-cli->postbox alone would have
# left this unit just as dead, with a different error message.
Environment=ALTHING_HANDLE=infra-ops
Environment=ALTHING_POST_OFFICE=http://10.100.50.40:8390
ExecStart=$REPO/scripts/backup-freshness-alert.sh
EOF

cat > "$UNIT_DIR/backup-freshness.timer" <<EOF
[Unit]
Description=Daily fleet backup freshness check (08:00)

[Timer]
OnCalendar=*-*-* 08:00:00
Persistent=true

[Install]
WantedBy=timers.target
EOF

systemctl --user daemon-reload
systemctl --user enable --now backup-freshness.timer
echo "installed. next run:"
systemctl --user list-timers backup-freshness.timer --all --no-pager