defmodule Clacks.User do
  use Ecto.Schema
  import Ecto.Changeset

  @type t() :: %__MODULE__{}

  schema "users" do
    field :username, :string
    field :private_key, :string
    field :password, :string, virtual: true
    field :password_hash, :string

    has_one :actor, Clacks.Actor

    timestamps()
  end

  def changeset(%__MODULE__{} = schema, attrs) do
    schema
    |> cast(attrs, [:username, :private_key, :password_hash])
    |> validate_required([:username, :private_key, :password_hash])
  end

  def registration_changeset(%__MODULE__{} = schema, attrs) do
    schema
    |> cast(attrs, [:username, :private_key, :password])
    |> validate_length(:password, min: 8)
    |> put_password_hash()
  end

  def change_password_changeset(%__MODULE__{} = schema, attrs) do
    schema
    |> cast(attrs, [:password])
    |> validate_length(:password, min: 8)
    |> put_password_hash()
  end

  defp put_password_hash(
         %Ecto.Changeset{valid?: true, changes: %{password: password}} = changeset
       ) do
    change(changeset, Bcrypt.add_hash(password))
  end
end