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require "yaml"

module RailsGuides
  module Helpers
    def guide(name, url, options = {}, &block)
      link = content_tag(:a, href: url) { name }
      result = content_tag(:dt, link)

      if options[:work_in_progress]
        result << content_tag(:dd, "Work in progress", class: "work-in-progress")
      end

      result << content_tag(:dd, capture(&block))
      result
    end

    def documents_by_section
      @documents_by_section ||= YAML.load_file(File.expand_path("../../source/#{@lang ? @lang + '/' : ''}documents.yaml", __FILE__))
    end

    def documents_flat
      documents_by_section.flat_map { |section| section["documents"] }
    end

    def finished_documents(documents)
      documents.reject { |document| document["work_in_progress"] }
    end

    def docs_for_menu(position=nil)
      if position.nil?
        documents_by_section
      elsif position == "L"
        documents_by_section.to(3)
      else
        documents_by_section.from(4)
      end
    end

    def author(name, nick, image = "credits_pic_blank.gif", &block)
      image = "images/#{image}"

      result = tag(:img, src: image, class: "left pic", alt: name, width: 91, height: 91)
      result << content_tag(:h3, name)
      result << content_tag(:p, capture(&block))
      content_tag(:div, result, class: "clearfix", id: nick)
    end

    def code(&block)
      c = capture(&block)
      content_tag(:code, c)
    end
  end
end