From 8a880a3d464daf486a10d85b8ee49305aa6b1e5b Mon Sep 17 00:00:00 2001
From: Eugen Rochko <eugen@zeonfederated.com>
Date: Tue, 24 Jan 2017 21:40:41 +0100
Subject: [PATCH] Make blocks create entries and unfollows instantly, but do
 the clean up in the background instead. Should fix delay where blocked person
 can interact with blocker for a short time before background job gets
 processed

---
 app/controllers/api/v1/accounts_controller.rb |  2 +-
 app/services/after_block_service.rb           | 31 +++++++++++++++++++
 app/services/block_service.rb                 | 27 +---------------
 app/workers/block_worker.rb                   |  2 +-
 4 files changed, 34 insertions(+), 28 deletions(-)
 create mode 100644 app/services/after_block_service.rb

diff --git a/app/controllers/api/v1/accounts_controller.rb b/app/controllers/api/v1/accounts_controller.rb
index a436191933..d97010c0e5 100644
--- a/app/controllers/api/v1/accounts_controller.rb
+++ b/app/controllers/api/v1/accounts_controller.rb
@@ -65,7 +65,7 @@ class Api::V1::AccountsController < ApiController
   end
 
   def block
-    BlockWorker.perform_async(current_user.account_id, @account.id)
+    BlockService.new.call(current_user.account, @account)
 
     @following   = { @account.id => false }
     @followed_by = { @account.id => false }
diff --git a/app/services/after_block_service.rb b/app/services/after_block_service.rb
new file mode 100644
index 0000000000..8c6197f2c3
--- /dev/null
+++ b/app/services/after_block_service.rb
@@ -0,0 +1,31 @@
+# frozen_string_literal: true
+
+class AfterBlockService < BaseService
+  def call(account, target_account)
+    clear_timelines(account, target_account)
+    clear_notifications(account, target_account)
+  end
+
+  private
+
+  def clear_timelines(account, target_account)
+    mentions_key = FeedManager.instance.key(:mentions, account.id)
+    home_key     = FeedManager.instance.key(:home, account.id)
+
+    target_account.statuses.select('id').find_each do |status|
+      redis.zrem(mentions_key, status.id)
+      redis.zrem(home_key, status.id)
+    end
+  end
+
+  def clear_notifications(account, target_account)
+    Notification.where(account: account).joins(:follow).where(activity_type: 'Follow', follows: { account_id: target_account.id }).destroy_all
+    Notification.where(account: account).joins(mention: :status).where(activity_type: 'Mention', statuses: { account_id: target_account.id }).destroy_all
+    Notification.where(account: account).joins(:favourite).where(activity_type: 'Favourite', favourites: { account_id: target_account.id }).destroy_all
+    Notification.where(account: account).joins(:status).where(activity_type: 'Status', statuses: { account_id: target_account.id }).destroy_all
+  end
+
+  def redis
+    Redis.current
+  end
+end
diff --git a/app/services/block_service.rb b/app/services/block_service.rb
index b08cf8ca83..e04b6cc392 100644
--- a/app/services/block_service.rb
+++ b/app/services/block_service.rb
@@ -9,32 +9,7 @@ class BlockService < BaseService
 
     block = account.block!(target_account)
 
-    clear_timelines(account, target_account)
-    clear_notifications(account, target_account)
-
+    BlockWorker.perform_async(account.id, target_account.id)
     NotificationWorker.perform_async(block.stream_entry.id, target_account.id) unless target_account.local?
   end
-
-  private
-
-  def clear_timelines(account, target_account)
-    mentions_key = FeedManager.instance.key(:mentions, account.id)
-    home_key     = FeedManager.instance.key(:home, account.id)
-
-    target_account.statuses.select('id').find_each do |status|
-      redis.zrem(mentions_key, status.id)
-      redis.zrem(home_key, status.id)
-    end
-  end
-
-  def clear_notifications(account, target_account)
-    Notification.where(account: account).joins(:follow).where(activity_type: 'Follow', follows: { account_id: target_account.id }).destroy_all
-    Notification.where(account: account).joins(mention: :status).where(activity_type: 'Mention', statuses: { account_id: target_account.id }).destroy_all
-    Notification.where(account: account).joins(:favourite).where(activity_type: 'Favourite', favourites: { account_id: target_account.id }).destroy_all
-    Notification.where(account: account).joins(:status).where(activity_type: 'Status', statuses: { account_id: target_account.id }).destroy_all
-  end
-
-  def redis
-    Redis.current
-  end
 end
diff --git a/app/workers/block_worker.rb b/app/workers/block_worker.rb
index dc00db197d..0820490d39 100644
--- a/app/workers/block_worker.rb
+++ b/app/workers/block_worker.rb
@@ -4,6 +4,6 @@ class BlockWorker
   include Sidekiq::Worker
 
   def perform(account_id, target_account_id)
-    BlockService.new.call(Account.find(account_id), Account.find(target_account_id))
+    AfterBlockService.new.call(Account.find(account_id), Account.find(target_account_id))
   end
 end