neiam /gitgud

defmodule GitGud.Accounts.RecoveryCode do
  use Ecto.Schema
  import Ecto.Changeset

  alias GitGud.Accounts.User

  schema "user_recovery_codes" do
    field :code_hash, :string
    field :used_at, :utc_datetime

    belongs_to :user, User

    timestamps(type: :utc_datetime, updated_at: false)
  end

  def create_changeset(struct, attrs) do
    struct
    |> cast(attrs, [:user_id, :code_hash])
    |> validate_required([:user_id, :code_hash])
    |> unique_constraint(:code_hash)
  end

  def mark_used(struct),
    do: change(struct, used_at: DateTime.utc_now(:second))

  def used?(%__MODULE__{used_at: t}), do: not is_nil(t)
end