<% content_for :before_content do %>
  <%= govuk_back_link href: collection_resources_path %>
<% end %>

<div class="govuk-grid-row">
  <div class="govuk-grid-column-two-thirds">
    <% resource_exists = file_exists_on_s3?(@collection_resource.download_filename) %>
    <%= form_with model: @collection_resource, url: @collection_resource.mandatory ? update_mandatory_collection_resource_path : collection_resource_update_path(@collection_resource), method: :patch do |f| %>
      <%= f.hidden_field :year %>
      <%= f.hidden_field :log_type %>
      <%= f.hidden_field :resource_type %>

      <%= f.govuk_error_summary %>

      <span class="govuk-caption-l"><%= "#{@collection_resource.log_type.humanize} #{text_year_range_format(@collection_resource.year)}" %></span>
      <h1 class="govuk-heading-l"><%= resource_exists ? "Change" : "Upload" %> the <%= @collection_resource.short_display_name.downcase %></h1>

      <p class="govuk-body">
        This file will be available for all users to download.
      </p>

      <%= f.govuk_file_field :file,
        label: { text: "Upload file", size: "m" } %>
      <% if resource_exists %>
        <p class="govuk-body">Current file: <%= govuk_link_to @collection_resource.download_filename, href: @collection_resource.download_path %></p>
      <% end %>

      <% unless @collection_resource.mandatory %>
        <%= f.govuk_text_field :short_display_name,
                  label: { text: "Resource type", size: "m" },
                  hint: { text: safe_join(["This will be used in the download link on the homepage. Do not include the log type or collection year.",
                                           content_tag(:br),
                                           "For example, if you enter “bulk upload change log”, the download link will say “Download the #{@collection_resource.log_type} bulk upload change log (#{text_year_range_format(@collection_resource.year)})”."]) } %>
                                          <% end %>

      <div class="govuk-button-group">
        <%= f.govuk_submit resource_exists ? "Save changes" : "Upload" %>
        <%= govuk_button_link_to "Cancel", collection_resources_path, secondary: true %>
      </div>
    <% end %>
  </div>
</div>