defmodule Thulani.Command.Util do
  alias Nostrum.Struct.Message
  alias Nostrum.Struct.User
  alias Nostrum.Struct.Emoji
  alias Nostrum.Struct.Channel
  alias Nostrum.Api

  @spec reply(Message.t(), Api.options() | String.t()) ::
          Api.create_message(Channel.id(), Message.t())
  def reply(
        %Message{
          channel_id: channel_id
        },
        msg
      )
      when is_bitstring(msg) do
    Api.create_message(channel_id, content: msg)
  end

  def reply(
        %Message{
          channel_id: channel_id
        },
        opts
      ) do
    Api.create_message(channel_id, opts)
  end

  @spec reply!(Message.t(), Api.options() | String.t()) :: nil
  def reply!(msg, opts), do: {:ok} = reply(msg, opts)

  @spec react(Message.t(), Api.emoji()) ::
          Api.create_reaction(Channel.id(), Message.id(), Emoji.t())
  def react(
        %Message{
          id: id,
          channel_id: channel_id
        },
        reaction
      ) do
    Api.create_reaction(channel_id, id, reaction)
  end

  @spec react!(Message.t(), Api.emoji()) ::
          Api.create_reaction(Channel.id(), Message.id(), Emoji.t())
  def react!(msg, opts), do: {:ok} = react(msg, opts)

  @spec metadata(Message.t()) :: Map.t()
  def metadata(%Message{
        author: %User{
          id: user_id
        },
        timestamp: timestamp
      }) do
    %{
      created_by: user_id,
      created: timestamp
    }
  end
end