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

usage() {
  cat <<'EOF'
Usage:
  cancel-atvm-run-watcher.sh --build-name <name> [--state-root <path>]
EOF
}

BUILD_NAME=""
STATE_ROOT="/var/lib/atvm-run-watcher"

while [[ $# -gt 0 ]]; do
  case "$1" in
    --build-name) BUILD_NAME="${2:-}"; shift 2 ;;
    --state-root) STATE_ROOT="${2:-}"; shift 2 ;;
    -h|--help) usage; exit 0 ;;
    *) echo "Unknown argument: $1" >&2; usage >&2; exit 1 ;;
  esac
done

if [[ -z "$BUILD_NAME" ]]; then
  echo "--build-name is required" >&2
  usage >&2
  exit 1
fi

RUN_DIR="${STATE_ROOT}/${BUILD_NAME}"
mkdir -p "$RUN_DIR"
touch "${RUN_DIR}/cancelled.marker"
systemctl stop "atvm-run-watcher@${BUILD_NAME}.service" || true