defmodule Polymarket.Schemas.MarketMetadata do
  @moduledoc """
  Sports metadata for a market. Part of a `Market` returned by the Gamma API.

  Links a market to its corresponding fixture/market in the Optic Odds feed.
  """

  use TypedEctoSchema

  alias Polymarket.JsonUtil

  @primary_key false

  @derive Jason.Encoder
  typed_embedded_schema do
    field(:optic_odds_fixture_id, :string)
    field(:optic_odds_market_id, :string)
    field(:optic_odds_market_name, :string)
    field(:optic_odds_selection, :string)
  end

  @doc "Builds a `MarketMetadata` 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__{
       optic_odds_fixture_id: attrs["optic_odds_fixture_id"],
       optic_odds_market_id: attrs["optic_odds_market_id"],
       optic_odds_market_name: attrs["optic_odds_market_name"],
       optic_odds_selection: attrs["optic_odds_selection"]
     }}
  end
end