function reload() {
  source ~/.zshenv
  source ~/.zshrc
}

function killport() {
  local port
  local force=false
  local pid

  for arg in "$@"; do
    if [[ $arg == '--force' ]]; then
      force=true
    elif [[ $arg =~ ^[0-9]+$ ]]; then
      port=$arg
    fi
  done

  if [[ -z $port ]]; then
    echo "Error: No port number specified."
    return 1
  fi

  pid=$(sudo netstat -tulpn | grep ":$port" | awk '{print $7}' | cut -d'/' -f1)

  if [[ -z $pid ]]; then
    echo "No process found on port $port."
    return 1
  fi

  if ! $force; then
    echo -n "Are you sure you want to kill the process on port $port? (y/n) "
    read -r REPLY
    echo
    if [[ ! $REPLY =~ ^[Yy]$ ]]; then
      echo "Operation cancelled."
      return 1
    fi
  fi

  echo "Killing process on port $port with PID $pid"
  sudo kill "$pid"
}