FIX: replace polls with a link in emails

lib/email/message_builder.rb

@@ -68,7 +68,7 @@ module Email
         html_override.gsub!("%{unsubscribe_link}", unsubscribe_link)
       end
 
-      styled = Email::Styles.new(html_override)
+      styled = Email::Styles.new(html_override, @opts)
       styled.format_basic
 
       if style = @opts[:style]

lib/email/renderer.rb

@@ -16,11 +16,11 @@ module Email
 
     def html
       if @message.html_part
-        style = Email::Styles.new(@message.html_part.body.to_s)
+        style = Email::Styles.new(@message.html_part.body.to_s, @opts)
         style.format_basic
         style.format_html
       else
-        style = Email::Styles.new(PrettyText.cook(text))
+        style = Email::Styles.new(PrettyText.cook(text), @opts)
         style.format_basic
       end
 

lib/email/styles.rb

@@ -6,8 +6,9 @@ module Email
   class Styles
     @@plugin_callbacks = []
 
-    def initialize(html)
+    def initialize(html, opts=nil)
       @html = html
+      @opts = opts || {}
       @fragment = Nokogiri::HTML.fragment(@html)
     end
 
@@ -146,7 +147,7 @@ module Email
 
     # this method is reserved for styles specific to plugin
     def plugin_styles
-      @@plugin_callbacks.each { |block| block.call(@fragment) }
+      @@plugin_callbacks.each { |block| block.call(@fragment, @opts) }
     end
 
     def to_html

plugins/poll/config/locales/server.en.yml

@@ -55,3 +55,6 @@ en:
 
     topic_must_be_open_to_toggle_status: "The topic must be open to toggle status."
     only_staff_or_op_can_toggle_status: "Only a staff member or the original poster can toggle a poll status."
+
+    email:
+      link_to_poll: "Click to view the poll."

plugins/poll/plugin.rb

@@ -22,9 +22,17 @@ DEFAULT_POLL_NAME ||= "poll".freeze
 
 after_initialize do
 
-  # remove "Vote Now!" & "Show Results" links in emails
-  Email::Styles.register_plugin_style do |fragment|
-    fragment.css(".poll a.cast-votes, .poll a.toggle-results").each(&:remove)
+  # turn polls into a link in emails
+  Email::Styles.register_plugin_style do |fragment, opts|
+    post = Post.find_by(id: opts[:post_id]) rescue nil
+    if post.nil? || post.trashed?
+      fragment.css(".poll").each(&:remove)
+    else
+      post_url = "#{Discourse.base_url}#{post.url}"
+      fragment.css(".poll").each do |poll|
+        poll.replace "<p><a href='#{post_url}'>#{I18n.t("poll.email.link_to_poll")}</a></p>"
+      end
+    end
   end
 
   module ::DiscoursePoll