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

APP_NAME="${1:-}"

if [[ -z "$APP_NAME" ]]; then
  echo "usage: infra-register-stdin <app_name>" >&2
  exit 2
fi

if ! [[ "$APP_NAME" =~ ^[A-Za-z0-9._-]+$ ]]; then
  echo "invalid app name: $APP_NAME" >&2
  exit 2
fi

DST_DIR="/var/run/active-apps"
DST="$DST_DIR/$APP_NAME.toml"
TMP="$DST.toml.tmp"

mkdir -p "$DST_DIR"

cat > "$TMP"

mv "$TMP" "$DST"