module Rostra
  module ApplicationHelper
    # If you don't need to make any changes, you can delete this file.
    #
    # Include base helper methods required for Rostra views. You probably don't want to remove
    # this line but you can add/override rostra methods in this file. The helpers which you may
    # need to override are listed below. Just un-comment them and make changes.
    #
    include Rostra::Base::ApplicationHelper

    # If you want to user helper methods defined elsewhere in your app, you can include them here
    # as well. For example:
    #
    # include MainAppHelper

    # Used to add meta description tags to rostra pages
    #
    # def include_meta_description
    #   description = case "#{controller_name}##{action_name}"
    #   when "questions#show" then @question.title
    #   when "questions#index" then "Recently asked questions"
    #   end
    #   tag(:meta, { :name => "description", :content => description })
    # end

    # Used to add meta keyword tags to rostra pages
    #
    # def include_meta_keywords
    #   keywords = case "#{controller_name}##{action_name}"
    #   when "questions#show" then @question.tag_list.join(', ')
    #   when "questions#index" then "add, some, default, keywords"
    #   end
    #   tag(:meta, { :name => "keywords", :content => keywords })
    # end

    # Snippet used to share a question on Twitter.
    #
    # def twitter_sharing_link
    #   raw %{
    #     <a href="https://twitter.com/share" class="twitter-share-button" data-count="none">Tweet</a>
    #     <script type="text/javascript" src="//platform.twitter.com/widgets.js"></script>
    #   }
    # end

    # Snippet used to share a question on Facebook.
    #
    # def facebook_sharing_link(question)
    #   raw %{
    #     <div class="fb-like" data-href="#{question_url(question)}" data-send="true" data-layout="button_count" data-width="450" data-show-faces="true" data-font="arial"></div>
    #   }
    # end

    # Javascript snippet required by facebook to support share links.
    #
    # def include_facebook_sharing_link_javascript
    #   raw %{
    #     <div id="fb-root"></div>
    #     <script>(function(d, s, id) {
    #       var js, fjs = d.getElementsByTagName(s)[0];
    #       if (d.getElementById(id)) return;
    #       js = d.createElement(s); js.id = id;
    #       js.src = "//connect.facebook.net/en_US/all.js#xfbml=1";
    #       fjs.parentNode.insertBefore(js, fjs);
    #     }(document, 'script', 'facebook-jssdk'));</script>
    #   }
    # end

    # Creates a list of tags linking to the index showing only questions with that tag
    #
    # def tag_list(question)
    #   tags = question.tags.map { |tag| link_to tag, questions_path(:tag_search => "#{tag}")}.join(', ')
    #   content_tag :div, "Tags: #{tags}".html_safe, class: 'tags'
    # end

    # Finds the url to the user's avatar following this logic:
    #
    #   1. Calls +avatar+ on the user object
    #   2. Uses the users email address to look for a gravatar
    #   3. Renders +app/assets/images/rostra/anonymous_avatar.png+
    #
    # def rostra_user_avatar(user)
    #   if user.respond_to?(:avatar)
    #     url = user.avatar
    #   else
    #     default_url = "#{main_app.root_url}assets/rostra/anonymous_avatar.png"
    #     gravatar_id = Digest::MD5.hexdigest(user.rostra_user_email.downcase)
    #     url = "http://gravatar.com/avatar/#{gravatar_id}.png?s=48&d=#{CGI.escape(default_url)}"
    #   end
    #   image_tag(url, class: 'avatar')
    # end

    # Used to populate both the +title+ and +h1+ elements for each page.
    #
    # def page_title_helper
    #   case "#{controller_name}##{action_name}"
    #   when "questions#show" then @question.title
    #   when "questions#index" then
    #     if params[:tag_search].present?
    #       "Recent Questions for tag #{params[:tag_search]}"
    #     else
    #       "Recent Questions"
    #     end
    #   when "questions#new" then "Post a new question"
    #   when "questions#edit" then "Editing question"
    #   when "answers#edit" then "Editing answer"
    #   else "Recent Questions"
    #   end
    # end

  end
end