module MailerHelper def round_button(text, url, variant) render 'shared/mailer_round_button', text: text, url: url, theme: theme(variant) end private def theme(variant) case variant when :primary { color: white, bg_color: blue, border_color: blue } when :secondary { color: blue, bg_color: white, border_color: blue } end end def blue '#0069CC' end def white '#FFFFFF' end end