module ApplicationHelper
  # Contains the complete navbar
  def nav_bar
    content_tag(:div, class: 'topnav', id: 'topnav') do
      yield
    end
  end

  # Defines individual links in the navbar. To be used inside nav_bar
  def nav_link(text, path)
    # Sets active class on the link corresponding to the page being viewed
    options = current_page?(path) ? { class: 'active' } : {}
    link_to text, path, options
  end

  # Used to render svg image files
  def show_svg(path)
    File.open("app/assets/images/#{path}", 'rb') do |file|
      raw file.read
    end
  end
end