module ContentHelper
  def render_content_page(page_name, page_title: nil, locals: {})
    raw_content = File.read("app/views/content/#{page_name}.md")
    content_with_erb_tags_replaced = ApplicationController.renderer.render(
      inline: raw_content,
      locals:,
    )

    page_title ||= page_name.to_s.humanize
    page_content = GovukMarkdown.render(content_with_erb_tags_replaced).html_safe

    render "content/page", locals: { page_title:, page_content: }
  end
end