module PostsHelper
  def resize_image_links(post, user)
    links = []

    if post.has_large?
      links << link_to("L", post.large_file_url, :id => "large-file-link")
    end
    
    if post.has_large?
      links << link_to("O", post.file_url, :id => "original-file-link")
    end
    
    if links.any?
      content_tag("span", raw("Resize: " + links.join(" ")))
    else
      nil
    end
  end
  
  def post_source_tag(post)
    if post.source =~ /^http/
      text = truncate(post.normalized_source.sub(/^https?:\/\//, ""))
      link_to(truncate(text, :length => 15), post.normalized_source)
    else
      truncate(post.source, :length => 100)
    end
  end
end