WebAuthN auth

lib/sso_bsn/accounts/user.ex

@@ -0,0 +1,60 @@
+defmodule SsoBsn.Accounts.User do
+  use Ecto.Schema
+  import Ecto.Changeset
+
+  alias SsoBsn.Accounts.UserKey
+
+  schema "users" do
+    field :username, :string
+    field :confirmed_at, :naive_datetime
+
+    has_many :keys, UserKey
+
+    timestamps(type: :utc_datetime)
+  end
+
+  @doc """
+  A user changeset for registration.
+  """
+  def registration_changeset(user, attrs, _opts \\ []) do
+    user
+    |> cast(attrs, [:username])
+    |> validate_username()
+  end
+
+  def validate_username(changeset) do
+    changeset
+    |> validate_format(:username, ~r/^[a-zA-Z_0-9.-]+$/)
+    |> validate_length(:username, min: 3, max: 128)
+    |> unique_constraint(:username)
+  end
+
+  @doc """
+  A user changeset for changing the username.
+
+  It requires the username to change otherwise an error is added.
+  """
+  def username_changeset(user, attrs, _opts \\ []) do
+    user
+    |> cast(attrs, [:username])
+    |> validate_username()
+    |> case do
+      %{changes: %{username: _}} = changeset -> changeset
+      %{} = changeset -> add_error(changeset, :username, "did not change")
+    end
+  end
+
+  @doc """
+  Confirms the account by setting `confirmed_at`.
+  """
+  def confirm_changeset(user) do
+    now = NaiveDateTime.utc_now() |> NaiveDateTime.truncate(:second)
+    change(user, confirmed_at: now)
+  end
+
+
+  def add_key_changeset(user) do
+    user
+    |> Ecto.build_assoc(:keys)
+  end
+end