module AppearancesHelper
  def brand_title
    if brand_item && brand_item.title
      brand_item.title
    else
      'GitLab Community Edition'
    end
  end

  def brand_image
    if brand_item.logo?
      image_tag brand_item.logo
    else
      nil
    end
  end

  def brand_text
    markdown_field(brand_item, :description)
  end

  def brand_item
    @appearance ||= Appearance.first
  end

  def brand_header_logo
    if brand_item && brand_item.header_logo?
      image_tag brand_item.header_logo
    else
      render 'shared/logo.svg'
    end
  end

  def custom_icon(icon_name, size: 16)
    # We can't simply do the below, because there are some .erb SVGs.
    #  File.read(Rails.root.join("app/views/shared/icons/_#{icon_name}.svg")).html_safe
    render "shared/icons/#{icon_name}.svg", size: size
  end

  def content_class_ref(content_class = @content_class)
    content_class
      .split(/\s/)
      .map {|klass| "content-#{klass}"}
      .join(' ')
  end
end
