From 8ba1a69d95e20683bc1a732b05fd8c8ab3c72a7a Mon Sep 17 00:00:00 2001
From: Joel Drapper <joel@drapper.me>
Date: Sun, 17 Mar 2024 18:20:02 +0000
Subject: [PATCH] Raise helpful error when calling a missing rails helper

Co-Authored-By: Seth Horsley <4959521+iseth@users.noreply.github.com>
---
 lib/phlex/rails.rb                     | 1 +
 lib/phlex/rails/html.rb                | 2 ++
 lib/phlex/rails/html/method_missing.rb | 9 +++++++++
 3 files changed, 12 insertions(+)
 create mode 100644 lib/phlex/rails/html/method_missing.rb

diff --git a/lib/phlex/rails.rb b/lib/phlex/rails.rb
index c62da2f5..ae563ab6 100644
--- a/lib/phlex/rails.rb
+++ b/lib/phlex/rails.rb
@@ -26,6 +26,7 @@ module Rails
 
 	HTML.extend Phlex::Rails::HTML::Format
 	HTML.include Phlex::Rails::HTML::Format
+	HTML.include Phlex::Rails::HTML::MethodMissing
 
 	Unbuffered.prepend Phlex::Rails::UnbufferedOverrides
 end
diff --git a/lib/phlex/rails/html.rb b/lib/phlex/rails/html.rb
index 6868c69a..be6228fc 100644
--- a/lib/phlex/rails/html.rb
+++ b/lib/phlex/rails/html.rb
@@ -1,6 +1,8 @@
 # frozen_string_literal: true
 
 module Phlex::Rails::HTML
+	autoload :MethodMissing, "phlex/rails/html/method_missing"
+
 	module Format
 		def format
 			:html
diff --git a/lib/phlex/rails/html/method_missing.rb b/lib/phlex/rails/html/method_missing.rb
new file mode 100644
index 00000000..51975d65
--- /dev/null
+++ b/lib/phlex/rails/html/method_missing.rb
@@ -0,0 +1,9 @@
+module Phlex::Rails::HTML::MethodMissing
+	def method_missing(name, *args, **kwargs, &block)
+		return super unless helpers.respond_to?(name)
+		const_name = name.to_s.gsub("?", "")
+		module_name = Phlex::Rails::Helpers.constants.find { |mod| mod.to_s.underscore.gsub("domid", "dom_id") == const_name }
+		return super unless module_name
+		raise NoMethodError, "Try including `Phlex::Rails::Helpers::#{module_name}` in your class."
+	end
+end