From 9411e8c35a50b04ac793977a7db44488261daadc Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Wed, 24 Feb 2016 01:28:53 +0100
Subject: [PATCH] Feed processing except fetching remote statuses

---
 app/services/process_feed_service.rb        | 107 +++++++++++++++++---
 app/services/process_interaction_service.rb |   2 +
 2 files changed, 95 insertions(+), 14 deletions(-)

diff --git a/app/services/process_feed_service.rb b/app/services/process_feed_service.rb
index 1367d163489..aece43a57b3 100644
--- a/app/services/process_feed_service.rb
+++ b/app/services/process_feed_service.rb
@@ -1,24 +1,103 @@
 class ProcessFeedService
+  include ApplicationHelper
+
   def call(body, account)
     xml = Nokogiri::XML(body)
 
-    xml.xpath('/xmlns:feed/xmlns:entry').each do |entry|
-      uri    = entry.at_xpath('./xmlns:id').content
-      status = Status.find_by(uri: uri)
+    xml.xpath('//xmlns:entry').each do |entry|
+      next unless [:note, :comment, :activity].includes? object_type(entry)
 
-      next if !status.nil?
+      status = Status.find_by(uri: activity_id(entry))
 
-      status = Status.new
-      status.account    = account
-      status.uri        = uri
-      status.text       = entry.at_xpath('./xmlns:content').content
-      status.created_at = entry.at_xpath('./xmlns:published').content
-      status.updated_at = entry.at_xpath('./xmlns:updated').content
-      status.save!
+      next unless status.nil?
 
-      # todo: not everything is a status. there are follows, favourites
-      # todo: RTs
-      # account.statuses.create!(reblog: status, uri: activity_uri(xml), url: activity_url(xml), text: content(xml))
+      status = Status.new(uri: activity_id(entry), account: account, text: content(entry), created_at: published(entry), updated_at: updated(entry))
+
+      if object_type(entry) == :comment
+        add_reply!(entry, status)
+      elsif verb(entry) == :share
+        add_reblog!(entry, status)
+      else
+        add_post!(entry, status)
+      end
     end
   end
+
+  private
+
+  def add_post!(entry, status)
+    status.save!
+  end
+
+  def add_reblog!(entry, status)
+    status.reblog = find_original_status(entry, target_id(entry))
+  end
+
+  def add_reply!(entry, status)
+    status.thread = find_original_status(entry, thread_id(entry))
+  end
+
+  def find_original_status(xml, id)
+    return nil if id.nil?
+
+    if local_id?(id)
+      Status.find(unique_tag_to_local_id(id, 'Status'))
+    else
+      status = Status.find_by(uri: id)
+
+      if status.nil?
+        status = fetch_remote_status(xml, id)
+      end
+
+      status
+    end
+  end
+
+  def fetch_remote_status(xml, id)
+    # todo
+  end
+
+  def local_id?(id)
+    id.start_with?("tag:#{LOCAL_DOMAIN}")
+  end
+
+  def published(xml)
+    xml.at_xpath('./xmlns:published').content
+  end
+
+  def updated(xml)
+    xml.at_xpath('./xmlns:updated').content
+  end
+
+  def content(xml)
+    xml.at_xpath('./xmlns:content').content
+  end
+
+  def thread_id(xml)
+    xml.at_xpath('./thr:in-reply-to-id').attribute('ref').value
+  rescue
+    nil
+  end
+
+  def target_id(xml)
+    xml.at_xpath('./activity:object/xmlns:id').content
+  rescue
+    nil
+  end
+
+  def activity_id(xml)
+    entry.at_xpath('./xmlns:id').content
+  end
+
+  def object_type(xml)
+    xml.at_xpath('./activity:object-type').content.gsub('http://activitystrea.ms/schema/1.0/', '').to_sym
+  rescue
+    :note
+  end
+
+  def verb(xml)
+    xml.at_xpath('./activity:verb').content.gsub('http://activitystrea.ms/schema/1.0/', '').to_sym
+  rescue
+    :post
+  end
 end
diff --git a/app/services/process_interaction_service.rb b/app/services/process_interaction_service.rb
index c466ae65236..57a9bdb40ed 100644
--- a/app/services/process_interaction_service.rb
+++ b/app/services/process_interaction_service.rb
@@ -46,6 +46,8 @@ class ProcessInteractionService
 
   def verb(xml)
     xml.at_xpath('//activity:verb').content.gsub('http://activitystrea.ms/schema/1.0/', '').to_sym
+  rescue
+    :post
   end
 
   def follow!(account, target_account)