implemented optional 'allow_registration' config, with first registered user being pre-confirmed Admin, registration unavailable after that point if allow_registration: :false

lib/shift73k_web/views/layout_view.ex

@@ -1,9 +1,12 @@
 defmodule Shift73kWeb.LayoutView do
   use Shift73kWeb, :view
-
+  alias Shift73k.Repo
   alias Shift73k.Accounts.User
   alias Shift73kWeb.Roles
 
+  @app_vars Application.compile_env(:shift73k, :app_global_vars, allow_registration: :true)
+  @app_allow_registration @app_vars[:allow_registration]
+
   # With a Vite.js-based workflow, we will import different asset files in development
   # and in production builds. Therefore, we will need a way to conditionally render
   # <script> tags based on Mix environment. However, since Mix is not available in
@@ -11,6 +14,8 @@ defmodule Shift73kWeb.LayoutView do
   @env Mix.env() # remember value at compile time
   def dev_env?, do: @env == :dev
 
+  def allow_registration, do: @app_allow_registration
+
   def nav_link_opts(conn, opts) do
     case Keyword.get(opts, :to) == Phoenix.Controller.current_path(conn) do
       false -> opts

lib/shift73k_web/views/user_confirmation_view.ex

@@ -1,4 +1,9 @@
 defmodule Shift73kWeb.UserConfirmationView do
   use Shift73kWeb, :view
   alias Shift73k.Accounts.User
+
+  @app_vars Application.compile_env(:shift73k, :app_global_vars, allow_registration: :true)
+  @app_allow_registration @app_vars[:allow_registration]
+
+  def allow_registration, do: @app_allow_registration
 end

lib/shift73k_web/views/user_reset_password_view.ex

@@ -1,4 +1,9 @@
 defmodule Shift73kWeb.UserResetPasswordView do
   use Shift73kWeb, :view
   alias Shift73k.Accounts.User
+
+  @app_vars Application.compile_env(:shift73k, :app_global_vars, allow_registration: :true)
+  @app_allow_registration @app_vars[:allow_registration]
+
+  def allow_registration, do: @app_allow_registration
 end

lib/shift73k_web/views/user_session_view.ex

@@ -1,4 +1,9 @@
 defmodule Shift73kWeb.UserSessionView do
   use Shift73kWeb, :view
   alias Shift73k.Accounts.User
+
+  @app_vars Application.compile_env(:shift73k, :app_global_vars, allow_registration: :true)
+  @app_allow_registration @app_vars[:allow_registration]
+
+  def allow_registration, do: @app_allow_registration
 end