#!/usr/bin/env bash
set -euo pipefail

target_host="${1:-root@sortug.com}"
service_name="${SERVICE_NAME:-kotsukotsu}"
current_path="${CURRENT_PATH:-/var/lib/kotsukotsu/current}"
health_url="${HEALTH_URL:-http://127.0.0.1:5174/healthz}"

store_path="$(nix build --accept-flake-config --print-out-paths .#default | tail -n 1)"

echo "Built ${store_path}"
echo "Copying package to ${target_host}"
nix copy --to "ssh://${target_host}" "${store_path}"

echo "Activating release on ${target_host}"
ssh "${target_host}" "
  set -euo pipefail
  ln -sfn '${store_path}' '${current_path}'
  systemctl restart '${service_name}'
  for _ in 1 2 3 4 5 6 7 8 9 10; do
    if curl -fsS '${health_url}' >/dev/null; then
      exit 0
    fi
    sleep 1
  done
  echo 'health check failed for ${service_name}' >&2
  exit 1
"