Import from CSV

* Re-fashion bulk add into an import for sake of prototype
* Use a textarea for pasting in a CSV
* Give guidance on the structure of the CSV
  * Header rows should be ignored, and not required
  * When a CSV doesn’t parse we should return with a validation error
* Hitting ‘continue’ will take you to a preview page, much like the
bulk add with a choice about overwriting, but each row must show all
mapping details
* This may be difficult when there are lots of mappings (see background
import problems)

app/views/mappings/new_multiple.html.erb

@@ -1,83 +1,39 @@
 <% breadcrumb(:new_mappings, @site) %>
 
-<%= content_for :page_title, 'New mappings' %>
+<%= content_for :page_title, 'Import mappings' %>
 <div class="page-title-with-border">
   <h1>
     <span class="small"><%= @site.default_host.hostname %></span>
-    Add mappings
+    Import mappings
   </h1>
 </div>
 
-<%= form_tag new_multiple_confirmation_site_mappings_path(@site), role: 'form', 'data-module' => 'toggle-mapping-form-fields' do %>
-
-  <% if @errors %>
-    <%= render 'shared/error_messages', error_messages: @errors.values %>
-  <% end %>
-  
-  <% if params[:return_path].present? %>
-    <%= hidden_field_tag 'return_path', params[:return_path] %>
-  <% end %>
-
-  <div class="row <% if @errors && @errors[:http_status] %>field_with_errors<% end %>">
-    <div class="col-md-2">
-      <%= label_tag(:http_status, 'Type') %>
-      <%= select_tag :http_status, options_for_select(options_for_supported_statuses, @bulk_add.http_status), { class: 'form-control remove-bottom-margin js-http-status' } %>
-    </div>
-  </div>
-
-  <div class="form-group <% if @errors && @errors[:paths] %>field_with_errors<% end %>">
+<%= form_tag new_multiple_confirmation_site_mappings_path(@site), role: 'form' do %>
+  <div class="form-group">
     <%#
       Capture label HTML to avoid using a block, this circumvents a problem with
       rails not wrapping the label with 'field_with_errors' on error
       http://stackoverflow.com/questions/13862978/
     %>
     <% label_html = capture do %>
-      Old URLs
+      Import from CSV
       <p class="text-muted normal add-label-margin">
-        Please add one path or URL per line, eg “/about” or “http://<%= @site.default_host.hostname %>/about”.
+        Please paste a CSV with the columns "old url,new url,type", where type is either redirect or archive.<br>
+        eg "http://www.ago.gov.uk/_layouts/feed.aspx,https://www.gov.uk/government/organisations/attorney-generals-office,redirect"
       </p>
     <% end %>
-    <%= label_tag :paths, label_html, class: 'add-top-margin' %>
+    <%= label_tag :paths, label_html %>
     <div class="row">
       <div class="old-urls col-md-8">
-        <%= text_area_tag :paths, @bulk_add.raw_paths.join("\n"), class: 'form-control', placeholder: '/path/to/page' %>
+        <%= text_area_tag :paths, @bulk_add.raw_paths.join("\n"), class: 'form-control', placeholder: 'old-url,new-url,status' %>
       </div>
     </div>
   </div>
-
-  <%= field_set_tag nil, class: 'form-group js-for-redirect' do %>
-    <legend class="if-js-rm">
-      Redirect
-    </legend>
-    <div <% if @errors && @errors[:new_url] %>class="field_with_errors"<% end %>>
-      <%= label_tag :new_url, 'Redirect to' %>
-      <div class="row">
-        <div class="col-md-8">
-          <%= text_field_tag(:new_url, @bulk_add.new_url, class: 'form-control') %>
-        </div>
-      </div>
-    </div>
-  <% end %>
-
-  <%= field_set_tag nil, class: 'js-for-archive' do %>
-    <legend class="if-js-rm">
-      Archive
-    </legend>
-
-    <dl class="read-only-fields">
-      <dt>National Archive</dt>
-      <dd>
-        <p>The archive URLs will be automatically generated based on the old URLs provided above.</p>
-      </dd>
-    </dl>
-  <% end %>
-
   <%= render partial: 'tag_list_field', locals: { bulk_tagger: @bulk_add } %>
-
   <%= button_tag 'Continue', class: 'add-vertical-margins btn btn-success' %>
 
   <div class="row">
-    <p class="col-md-8 text-muted">When you submit the form we’ll convert the URLs to lowercase and order the query parameters so they are consistent, and we’ll check whether they already exist. There will be a review step before your changes are saved.</p>
+    <p class="col-md-8 text-muted">When you submit the form we’ll convert the old URLs to lowercase and order the query parameters so they are consistent, and we’ll check whether they already exist. There will be a review step before your paths are imported.</p>
   </div>
 
 <% end %>