discourse/lib/email/renderer.rb

require_dependency 'email/styles'

module Email
  class Renderer

    def initialize(message, opts=nil)
      @message = message
      @opts = opts || {}
    end

    def text
      @text ||= @message.body.to_s.force_encoding('UTF-8')
    end

    def logo_url
      logo_url = SiteSetting.logo_url
      if logo_url !~ /http(s)?\:\/\//
        logo_url = "#{Discourse.base_url}#{logo_url}"
      end
      logo_url
    end

    def html
      cooked = PrettyText.cook(text, environment: 'email')

      if @opts[:html_template]
        ActionView::Base.new(Rails.configuration.paths["app/views"]).render(
          template: 'email/template',
          format: :html,
          locals: { html_body: Email::Styles.new(cooked).format, logo_url: logo_url }
        )
      else
        cooked
      end
    end

  end
end