defmodule Teac.EventSub.AdBreak do
  @moduledoc """
  Represents a `channel.ad_break.begin` EventSub event.

  Use `from_event/1` in your `Teac.WssClient.Handler` callback to convert
  the raw event map to a typed struct.
  """

  @type t :: %__MODULE__{
          broadcaster_user_id: String.t(),
          broadcaster_username: String.t(),
          requester_user_id: String.t(),
          requester_username: String.t(),
          duration_seconds: non_neg_integer(),
          started_at: String.t(),
          is_automatic: boolean()
        }

  defstruct [
    :broadcaster_user_id,
    :broadcaster_username,
    :requester_user_id,
    :requester_username,
    :duration_seconds,
    :started_at,
    :is_automatic
  ]

  @doc """
  Parses a raw `channel.ad_break.begin` event map into a `%AdBreak{}`.
  """
  @spec from_event(map()) :: t()
  def from_event(event) do
    %__MODULE__{
      broadcaster_user_id: event["broadcaster_user_id"],
      broadcaster_username: event["broadcaster_user_name"],
      requester_user_id: event["requester_user_id"],
      requester_username: event["requester_user_name"],
      duration_seconds: event["duration_seconds"],
      started_at: event["started_at"],
      is_automatic: event["is_automatic"]
    }
  end
end