defmodule MessageServer.MessageRequest do
  @type t :: %__MODULE__{
          from: String.t(),
          to: String.t(),
          message: String.t()
        }

  defstruct [:from, :to, :message]

  @spec new(String.t(), String.t(), String.t()) :: t()
  def new(from, to, message) do
    %__MODULE__{from: from, to: to, message: message}
  end

  @spec valid?(t()) :: boolean()
  def valid?(%__MODULE__{from: from, to: to, message: message})
      when is_binary(from) and is_binary(to) and is_binary(message) do
    String.trim(from) != "" and String.trim(to) != "" and String.trim(message) != ""
  end

  def valid?(_), do: false
end