<%= f.fields_for :value do |ff| %>
      <%= ff.hidden_field :service, value: 'aws_s3' %>
      <%= ff.fields_for :configs, configs do |fff| %>
        
          <%= fff.label :access_key_id, 'Access key ID' %>
          <%= fff.text_field :access_key_id, value: configs['access_key_id'], required: true %>
        
        
          <%= fff.label :secret_access_key %>
          <%= fff.password_field :secret_access_key, value: configs['secret_access_key'], required: true %>
        
        
          <%= fff.label :region %>
          <%= fff.text_field :region, value: configs['region'], required: true %>
        
        
          <%= fff.label :bucket %>
          <%= fff.text_field :bucket, value: value['service'] == 'aws_s3' ? configs['bucket'] : '', required: true %>
        
        
          <%= fff.label :endpoint %>
          <%= fff.text_field :endpoint, value: configs['endpoint'], type: :url %>
        
      <% end %>
    <% end %>
  
  
    <%= f.fields_for :value do |ff| %>
      <%= ff.hidden_field :service, value: 'google' %>
      <%= ff.fields_for :configs, configs do |fff| %>
        
          <%= fff.label :project, 'Project' %>
          <%= fff.text_field :project, value: configs['project'], required: true %>
        
        
          <%= fff.label :bucket %>
          <%= fff.text_field :bucket, value: value['service'] == 'google' ? configs['bucket'] : '', required: true %>
        
        
          <%= fff.label :credentials, 'Credentials (JSON key content)' %>
          <%= fff.text_area :credentials, value: configs['credentials'], required: true %>
        
      <% end %>
    <% end %>
  
  <%= f.button button_title %>
<% end %>