defmodule Frenzy.Filter do
  use Ecto.Schema
  import Ecto.Changeset

  schema "filters" do
    field :mode, :string
    field :score, :integer

    belongs_to :feed, Frenzy.Feed
    has_many :rules, Frenzy.Rule, on_delete: :delete_all

    timestamps()
  end

  @type t() :: %__MODULE__{
          __meta__: Ecto.Schema.Metadata.t(),
          id: integer() | nil,
          mode: String.t(),
          score: integer(),
          feed: Frenzy.Feed.t() | Ecto.Association.NotLoaded.t(),
          rules: [Frenzy.Rule.t()] | Ecto.Association.NotLoaded.t(),
          inserted_at: NaiveDateTime.t(),
          updated_at: NaiveDateTime.t()
        }

  @doc false
  def changeset(filter, attrs) do
    filter
    |> cast(attrs, [:mode, :score])
    |> cast_assoc(:rules)
    |> validate_required([:mode, :score])
  end
end