#!/bin/bash
# Sourced by the test and production deployment scripts.

deploy_restart_pm2() {
  local instance_name="$1"
  local config_file="$2"
  local node_binary

  if [ ! -f "$config_file" ]; then
    echo "ERROR: PM2-Konfigurationsdatei nicht gefunden: $config_file"
    return 1
  fi

  node_binary="$(node -p 'process.execPath')" || return 1
  echo "   Starting/restarting $instance_name using Node: $node_binary"
  # PM2 retains the old script path even when restarting via a config file.
  # Recreate only this app so legacy `script: node` entries migrate as well.
  if pm2 describe "$instance_name" >/dev/null 2>&1; then
    pm2 delete "$instance_name" || return 1
  fi
  DEPLOY_NODE_BINARY="$node_binary" pm2 start "$config_file" \
    --only "$instance_name" --update-env
}

deploy_wait_for_http() {
  local instance_name="$1"
  local url="$2"
  local attempt

  echo "   Waiting for $instance_name: $url"
  for ((attempt = 1; attempt <= 30; attempt++)); do
    if curl --fail --silent --max-time 2 "$url" >/dev/null; then
      echo "   ✓ HTTP-Healthcheck erfolgreich: $url"
      return 0
    fi
    if [ "$attempt" -lt 30 ]; then
      sleep 2
    fi
  done

  echo "ERROR: $instance_name antwortet nicht erfolgreich auf $url"
  pm2 describe "$instance_name" || true
  pm2 logs "$instance_name" --nostream --lines 30 || true
  return 1
}