Show draft/scheduled status banners for authenticated users

app/lib/firehose_web/controllers/blog_controller.ex

@@ -22,11 +22,14 @@ defmodule FirehoseWeb.BlogController do
   def show(conn, %{"slug" => slug}) do
     blog = conn.assigns.blog
     post = blog.get_post!(slug)
+    visibility = Blogex.Post.visibility(post)
 
     render(conn, :show,
       page_title: post.title,
       post: post,
-      base_path: blog.base_path()
+      base_path: blog.base_path(),
+      visibility: visibility,
+      authenticated: conn.assigns[:current_user] != nil
     )
   end
 

app/lib/firehose_web/controllers/blog_html/show.html.heex

@@ -1,4 +1,23 @@
 <div class="space-y-8">
   <a href={@base_path} class="text-sm text-primary hover:underline">&larr; Back to posts</a>
+
+  <%= if @authenticated and @visibility == :draft do %>
+    <div
+      class="rounded-lg bg-amber-50 border border-amber-200 px-4 py-3 text-amber-800 text-sm font-medium"
+      id="post-status-banner"
+    >
+      Draft — not published
+    </div>
+  <% end %>
+
+  <%= if @authenticated and @visibility == :scheduled do %>
+    <div
+      class="rounded-lg bg-blue-50 border border-blue-200 px-4 py-3 text-blue-800 text-sm font-medium"
+      id="post-status-banner"
+    >
+      This post is scheduled for {Calendar.strftime(@post.date, "%B %d, %Y")}
+    </div>
+  <% end %>
+
   <.post_show post={@post} base_path={@base_path} />
 </div>