Clean up remark->create plus new 404 behavior

lib/PostText/Controller/Remark.pm

@@ -57,6 +57,9 @@ sub create($self) {
         last_remark => $last_remark
         );
 
+    $self->stash(status => 404, error => 'Thread not found 🤷')
+        unless keys %{$thread};
+
     return $self->render;
 }
 

templates/remark/create.html.ep

@@ -1,6 +1,7 @@
 % layout 'default';
 % title 'New Remark';
 <h2 class="page-title"><%= title %></h2>
+<% if (keys %{$thread}) { =%>
 <form method="post" class="form-body">
   <div class="form-field">
     <% if (my $error = validation->error('author')) { =%>
@@ -49,7 +50,8 @@
     </div>
   </article>
 </section>
-<% if (my $last_remark_id = $last_remark->{'id'}) { =%>
+<% } =%>
+<% if (keys %{$last_remark}) { =%>
 <section class="pager">
   <h3 class="pager__title">Last Remark</h3>
   <article class="post">
@@ -57,8 +59,8 @@
       <span>
         <%= $last_remark->{'date'} %>
       </span>
-      <%= link_to "#$last_remark_id", single_remark =>
-          {remark_id => $last_remark_id}, (class => 'post__id') %>
+      <%= link_to "#$last_remark->{'id'}", single_remark =>
+          {remark_id => $last_remark->{'id'}}, (class => 'post__id') %>
     </h4>
     <h5 class="post__author"><%= $last_remark->{'author'} %></h5>
     <div class="post__body">