add service for saving threads to documents

app/services/forums_prosify_service.rb

@@ -0,0 +1,43 @@
+class ForumsProsifyService < Service
+  ENDLINE = "\r\n"
+
+  def self.prosify_text(thredded_topic_id, strip_parentheticals=true)
+    topic = Thredded::Topic.find_by(id: thredded_topic_id)
+    prose = ""
+
+    topic.posts.find_each do |post|
+      paragraphs = post.content.split(ENDLINE)
+
+      paragraphs.each do |paragraph|
+        prose += "\t#{paragraph}#{ENDLINE}" unless strip_parentheticals && post.content.start_with?('(') && post.content.end_with?(')')
+      end
+    end
+
+    prose
+  end
+
+  def self.prosify_html(thredded_topic_id, strip_parentheticals=true)
+    topic = Thredded::Topic.find_by(id: thredded_topic_id)
+    prose = ""
+
+    user_display_name_cache = {}
+
+    topic.posts.find_each do |post|
+      user_display_name_cache[post.user_id] = post.user.try(:display_name) || "Anonymous user" unless user_display_name_cache.key?(post.user_id)
+
+      tooltip = "authored by #{user_display_name_cache[post.user_id]}"
+      prose += "<p class='tooltipped' data-tooltip='#{tooltip}' data-position='right'>#{post.content}</p>" unless strip_parentheticals && post.content.start_with?('(') && post.content.end_with?(')')
+    end
+
+    prose
+  end
+
+  def self.save_to_document(user, thredded_topic_id, strip_parentheticals=true)
+    topic = Thredded::Topic.find_by(id: thredded_topic_id)
+
+    user.documents.create!(
+      title: "#{topic.title} (forums post)",
+      body:  prosify_html(thredded_topic_id, strip_parentheticals)
+    )
+  end
+end