codelation/blocky

# Rails view helper for rendering Blocky content inside view templates.
module BlockyHelper
  # Render a Blocky content block with the given unique key. If a block is given, the
  # content inside the block will be saved if it doesn't already exist for the given key.
  # @param content_key [Symbol] The key should describe the content
  def blocky(content_key, &block)
    content_block = Blocky::ContentBlock.where(content_key: content_key).first_or_initialize

    if content_block.new_record?
      content_block.content = capture(&block) if block_given?
      content_block.save
    end

    if try(:current_admin_user)
      edit_text  = "Edit"
      edit_text += '<span style="font-weight: normal; margin-left: 0.5em;">'
      edit_text += content_block.display_name
      edit_text += "</span>"
      raw("#{link_to(raw(edit_text), edit_admin_content_block_path(content_block), style: edit_link_style)}#{content_block.content}")
    else
      Rails.cache.fetch(content_block, skip_digest: true) do
        raw(content_block.content)
      end
    end
  end

private

  def edit_link_style
    style  = "background-color: rgba(0, 0, 0, 0.5);"
    style += "border-radius: 2px;"
    style += "color: #fff;"
    style += "display: block;"
    style += "font-size: 12px !important;"
    style += "font-weight: bold;"
    style += "padding: 0.5em 1em;"
    style += "position: absolute;"
    style += "text-decoration: none;"
    style
  end
end