Refactor Application usage and Modules names

lib/phoenix_kit/config/config.ex

@@ -28,6 +28,7 @@ defmodule PhoenixKit.Config do
   - `:layout_module` - Custom layout configuration
   - `:from_email` - Default sender email address for notifications
   - `:from_name` - Default sender name for notifications (default: "PhoenixKit")
+  - `:users_module` - User schema module (default: PhoenixKit.Users.Auth.User)
 
   ## Type-Safe Functions
 
@@ -61,6 +62,7 @@ defmodule PhoenixKit.Config do
     secret_key_base: nil,
     oauth_base_url: nil,
     # Module-specific settings
+    users_module: PhoenixKit.Users.Auth.User,
     blogging_settings_module: PhoenixKit.Settings
   ]
 
@@ -335,6 +337,17 @@ defmodule PhoenixKit.Config do
     end
   end
 
+  @doc """
+  Gets the configured users module.
+  """
+  @spec get_users_module() :: module()
+  def get_users_module do
+    case get(:users_module) do
+      {:ok, users_module} when is_atom(users_module) -> users_module
+      _ -> PhoenixKit.Users.Auth.User
+    end
+  end
+
   @doc """
   Gets the configured repository module.
   """
@@ -375,6 +388,20 @@ defmodule PhoenixKit.Config do
     end
   end
 
+  @doc """
+  Gets configuration from the parent application.
+
+  This is useful for accessing parent app mailer, endpoint, or other configurations
+  that PhoenixKit needs to integrate with.
+  """
+  @spec get_parent_app_config(atom(), any()) :: any()
+  def get_parent_app_config(key, default \\ nil) do
+    case get_parent_app() do
+      nil -> default
+      app -> Application.get_env(app, key, default)
+    end
+  end
+
   @doc """
   Gets the parent application name that is using PhoenixKit.
 

lib/phoenix_kit/mailer.ex

@@ -196,7 +196,14 @@ defmodule PhoenixKit.Mailer do
 
   # Deliver email with runtime configuration for AWS SES
   defp deliver_with_runtime_config(email, mailer, app \\ :phoenix_kit) do
-    config = Application.get_env(app, mailer, [])
+    config =
+      if app == :phoenix_kit do
+        # Use PhoenixKit config for built-in mailer
+        PhoenixKit.Config.get(mailer, [])
+      else
+        # Use parent app config for parent mailer
+        PhoenixKit.Config.get_parent_app_config(mailer, [])
+      end
 
     # If using AWS SES, override with runtime settings from DB
     runtime_config =
@@ -413,8 +420,7 @@ defmodule PhoenixKit.Mailer do
 
   # Detect provider for parent application mailer
   defp detect_parent_app_provider(mailer) when is_atom(mailer) do
-    app = PhoenixKit.Config.get_parent_app()
-    config = Application.get_env(app, mailer, [])
+    config = PhoenixKit.Config.get_parent_app_config(mailer, [])
     adapter = Keyword.get(config, :adapter)
     Utils.adapter_to_provider_name(adapter, "parent_app_mailer")
   end