defmodule Polymarket.Schemas.EventMessage do
  @moduledoc """
  Event message describing the parent event of a market. Part of a NewMarketEvent.
  """

  use TypedEctoSchema

  alias Polymarket.JsonUtil

  @primary_key false

  @derive Jason.Encoder
  typed_embedded_schema do
    field(:id, :string)
    field(:description, :string)
    field(:title, :string)
    field(:ticker, :string)
    field(:slug, :string)
  end

  @doc "Builds an `EventMessage` from a decoded (JSON) map, coercing each field."
  @spec from_attrs(map()) :: {:ok, t()}
  def from_attrs(attrs) do
    attrs = JsonUtil.snake_case_keys(attrs)

    {:ok,
     %__MODULE__{
       id: attrs["id"],
       description: attrs["description"],
       title: attrs["title"],
       ticker: attrs["ticker"],
       slug: attrs["slug"]
     }}
  end
end