From 1119f41cb2cb3b8c7401b43cd928ab587fb07b72 Mon Sep 17 00:00:00 2001
From: Douglas Vought <doug@vought.co>
Date: Thu, 14 Sep 2023 18:31:55 -0400
Subject: [PATCH] Generalize SSR.NotConfigured exception

---
 lib/component.ex   | 2 +-
 lib/ssr.ex         | 7 ++-----
 lib/ssr/node_js.ex | 7 ++++++-
 test/ssr_test.exs  | 7 +++++++
 4 files changed, 16 insertions(+), 7 deletions(-)

diff --git a/lib/component.ex b/lib/component.ex
index 01c96b5..93f3cf1 100644
--- a/lib/component.ex
+++ b/lib/component.ex
@@ -81,7 +81,7 @@ defmodule LiveSvelte do
 
           SSR.render(assigns.name, props, slots)
         rescue
-          SSR.NodeNotConfigured -> nil
+          SSR.NotConfigured -> nil
         end
       end
 
diff --git a/lib/ssr.ex b/lib/ssr.ex
index e650651..7949e98 100644
--- a/lib/ssr.ex
+++ b/lib/ssr.ex
@@ -1,10 +1,7 @@
-defmodule LiveSvelte.SSR.NodeNotConfigured do
+defmodule LiveSvelte.SSR.NotConfigured do
   @moduledoc false
 
-  defexception message: """
-                 NodeJS is not configured. Please add the following to your application.ex:
-                 {NodeJS.Supervisor, [path: LiveSvelte.SSR.server_path(), pool_size: 4]},
-               """
+  defexception [:message]
 end
 
 defmodule LiveSvelte.SSR do
diff --git a/lib/ssr/node_js.ex b/lib/ssr/node_js.ex
index 634c518..6c0bc6a 100644
--- a/lib/ssr/node_js.ex
+++ b/lib/ssr/node_js.ex
@@ -6,7 +6,12 @@ defmodule LiveSvelte.SSR.NodeJS do
     try do
       NodeJS.call!({"server", "render"}, [name, props, slots])
     catch
-      :exit, {:noproc, _} -> raise LiveSvelte.SSR.NodeNotConfigured
+      :exit, {:noproc, _} ->
+        message = """
+        NodeJS is not configured. Please add the following to your application.ex:
+        {NodeJS.Supervisor, [path: LiveSvelte.SSR.NodeJS.server_path(), pool_size: 4]},
+        """
+        raise %LiveSvelte.SSR.NotConfigured{message: message}
     end
   end
 
diff --git a/test/ssr_test.exs b/test/ssr_test.exs
index 67d004f..d1c633d 100644
--- a/test/ssr_test.exs
+++ b/test/ssr_test.exs
@@ -6,6 +6,13 @@ defmodule LiveSvelte.SSRTest do
     assert Application.get_env(:live_svelte, :ssr_module) == LiveSvelte.SSR.NodeJS
   end
 
+  test "Node.js raises the correct exception" do
+    load_config("config/config.exs")
+    assert_raise(LiveSvelte.SSR.NotConfigured, fn -> 
+      LiveSvelte.SSR.NodeJS.render("Test", %{}, %{})
+    end)
+  end
+
   test "It uses a different SSR module" do
     load_config("test/ssr_test/test_config.exs")
     assert Application.get_env(:live_svelte, :ssr_module) == SomeOtherSSRModule