module NavigationHelpers
  def path_to(page_name)
    case page_name
      when /^person_photos page$/
         person_photos_path(@me.person)
      when /^the home(?: )?page$/
        stream_path
      when /^step (\d)$/
        if $1.to_i == 1
          getting_started_path
        else
          getting_started_path(:step => $1)
        end
      when /^the tag page for "([^\"]*)"$/
        tag_path($1)
      when /^its ([\w ]+) page$/
        send("#{$1.gsub(/\W+/, '_')}_path", @it)
      when /^the ([\w ]+) page$/
        send("#{$1.gsub(/\W+/, '_')}_path")
      when /^my edit profile page$/
        edit_profile_path
      when /^my profile page$/
        person_path(@me.person)
      when /^my acceptance form page$/
        invite_code_path(InvitationCode.first)
      when /^the requestors profile$/
        person_path(Request.where(:recipient_id => @me.person.id).first.sender)
      when /^"([^\"]*)"'s page$/
        p = User.find_by_email($1).person
        { path: person_path(p),
          # '.diaspora_handle' on desktop, '.description' on mobile
          special_elem: { selector: '.diaspora_handle, .description', text: p.diaspora_handle }
        }
      when /^"([^\"]*)"'s photos page$/
        p = User.find_by_email($1).person
        person_photos_path p
      when /^my account settings page$/
        edit_user_path
      when /^my new profile page$/
        person_path(@me.person,  :ex => true)
      when /^the new stream$/
        stream_path(:ex => true)
      when /^forgot password page$/
          new_user_password_path
      when /^"(\/.*)"/
        $1
      else
        raise "Can't find mapping from \"#{page_name}\" to a path."
    end
  end

  def login_page
    path_to "the new user session page"
  end

  def post_path_by_content(text)
    p = Post.find_by_text(text)
    post_path(p)
  end

  def navigate_to(page_name)
    path = path_to(page_name)
    unless path.is_a?(Hash)
      visit(path)
    else
      visit(path[:path])
      await_elem = path[:special_elem]
      find(await_elem.delete(:selector), await_elem)
    end
  end

  def confirm_on_page(page_name)
    current_path = URI.parse(current_url).path
    current_path.should == path_to(page_name)
  end
end

World(NavigationHelpers)