6 files changed, 66 insertions, 48 deletions
diff --git a/app/lib/feed_manager.rb b/app/lib/feed_manager.rb
index cd6ca1291..a2efcce10 100644
--- a/app/lib/feed_manager.rb
+++ b/app/lib/feed_manager.rb
@@ -5,7 +5,7 @@ require 'singleton'
 class FeedManager
   include Singleton
 
-  MAX_ITEMS = 800
+  MAX_ITEMS = 400
 
   def key(type, id)
     "feed:#{type}:#{id}"
@@ -50,10 +50,18 @@ class FeedManager
 
   def merge_into_timeline(from_account, into_account)
     timeline_key = key(:home, into_account.id)
+    query        = from_account.statuses.limit(FeedManager::MAX_ITEMS / 4)
 
-    from_account.statuses.limit(MAX_ITEMS).each do |status|
-      next if status.direct_visibility? || filter?(:home, status, into_account)
-      redis.zadd(timeline_key, status.id, status.id)
+    if redis.zcard(timeline_key) >= FeedManager::MAX_ITEMS / 4
+      oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0
+      query = query.where('id > ?', oldest_home_score)
+    end
+
+    redis.pipelined do
+      query.each do |status|
+        next if status.direct_visibility? || filter?(:home, status, into_account)
+        redis.zadd(timeline_key, status.id, status.id)
+      end
     end
 
     trim(:home, into_account.id)
@@ -61,31 +69,20 @@ class FeedManager
 
   def unmerge_from_timeline(from_account, into_account)
     timeline_key = key(:home, into_account.id)
-
-    from_account.statuses.select('id').find_each do |status|
-      redis.zrem(timeline_key, status.id)
-      redis.zremrangebyscore(timeline_key, status.id, status.id)
+    oldest_home_score = redis.zrange(timeline_key, 0, 0, with_scores: true)&.first&.last&.to_i || 0
+
+    from_account.statuses.select('id').where('id > ?', oldest_home_score).find_in_batches do |statuses|
+      redis.pipelined do
+        statuses.each do |status|
+          redis.zrem(timeline_key, status.id)
+          redis.zremrangebyscore(timeline_key, status.id, status.id)
+        end
+      end
     end
   end
 
   def inline_render(target_account, template, object)
-    rabl_scope = Class.new do
-      include RoutingHelper
-
-      def initialize(account)
-        @account = account
-      end
-
-      def current_user
-        @account.try(:user)
-      end
-
-      def current_account
-        @account
-      end
-    end
-
-    Rabl::Renderer.new(template, object, view_path: 'app/views', format: :json, scope: rabl_scope.new(target_account)).render
+    Rabl::Renderer.new(template, object, view_path: 'app/views', format: :json, scope: InlineRablScope.new(target_account)).render
   end
 
   private
@@ -95,37 +92,39 @@ class FeedManager
   end
 
   def filter_from_home?(status, receiver)
-    return true if receiver.muting?(status.account)
+    return true if status.reply? && status.in_reply_to_id.nil?
+
+    check_for_mutes = [status.account_id]
+    check_for_mutes.concat([status.reblog.account_id]) if status.reblog?
+
+    return true if receiver.muting?(check_for_mutes)
+
+    check_for_blocks = status.mentions.map(&:account_id)
+    check_for_blocks.concat([status.reblog.account_id]) if status.reblog?
 
-    should_filter = false
+    return true if receiver.blocking?(check_for_blocks)
 
-    if status.reply? && status.in_reply_to_id.nil?
-      should_filter = true
-    elsif status.reply? && !status.in_reply_to_account_id.nil?                # Filter out if it's a reply
+    if status.reply? && !status.in_reply_to_account_id.nil?                   # Filter out if it's a reply
       should_filter   = !receiver.following?(status.in_reply_to_account)      # and I'm not following the person it's a reply to
       should_filter &&= !(receiver.id == status.in_reply_to_account_id)       # and it's not a reply to me
       should_filter &&= !(status.account_id == status.in_reply_to_account_id) # and it's not a self-reply
+      return should_filter
     elsif status.reblog?                                                      # Filter out a reblog
-      should_filter = receiver.blocking?(status.reblog.account)               # if I'm blocking the reblogged person
-      should_filter ||= receiver.muting?(status.reblog.account)               # or muting that person
-      should_filter ||= status.reblog.account.blocking?(receiver)             # or if the author of the reblogged status is blocking me
+      return status.reblog.account.blocking?(receiver)                        # or if the author of the reblogged status is blocking me
     end
 
-    should_filter ||= receiver.blocking?(status.mentions.map(&:account_id))   # or if it mentions someone I blocked
-
-    should_filter
+    false
   end
 
   def filter_from_mentions?(status, receiver)
+    check_for_blocks = [status.account_id]
+    check_for_blocks.concat(status.mentions.select('account_id').map(&:account_id))
+    check_for_blocks.concat([status.in_reply_to_account]) if status.reply? && !status.in_reply_to_account_id.nil?
+
     should_filter   = receiver.id == status.account_id                                      # Filter if I'm mentioning myself
-    should_filter ||= receiver.blocking?(status.account)                                    # or it's from someone I blocked
-    should_filter ||= receiver.blocking?(status.mentions.includes(:account).map(&:account)) # or if it mentions someone I blocked
+    should_filter ||= receiver.blocking?(check_for_blocks)                                  # or it's from someone I blocked, in reply to someone I blocked, or mentioning someone I blocked
     should_filter ||= (status.account.silenced? && !receiver.following?(status.account))    # of if the account is silenced and I'm not following them
 
-    if status.reply? && !status.in_reply_to_account_id.nil?                                 # or it's a reply
-      should_filter ||= receiver.blocking?(status.in_reply_to_account)                      # to a user I blocked
-    end
-
     should_filter
   end
 end
diff --git a/app/lib/inline_rabl_scope.rb b/app/lib/inline_rabl_scope.rb
new file mode 100644
index 000000000..26adcb03a
--- /dev/null
+++ b/app/lib/inline_rabl_scope.rb
@@ -0,0 +1,17 @@
+# frozen_string_literal: true
+
+class InlineRablScope
+  include RoutingHelper
+
+  def initialize(account)
+    @account = account
+  end
+
+  def current_user
+    @account.try(:user)
+  end
+
+  def current_account
+    @account
+  end
+end
diff --git a/app/services/precompute_feed_service.rb b/app/services/precompute_feed_service.rb
index e1ec56e8d..a57c401d0 100644
--- a/app/services/precompute_feed_service.rb
+++ b/app/services/precompute_feed_service.rb
@@ -5,9 +5,11 @@ class PrecomputeFeedService < BaseService
   # @param [Symbol] type :home or :mentions
   # @param [Account] account
   def call(_, account)
-    Status.as_home_timeline(account).limit(FeedManager::MAX_ITEMS).each do |status|
-      next if status.direct_visibility? || FeedManager.instance.filter?(:home, status, account)
-      redis.zadd(FeedManager.instance.key(:home, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
+    redis.pipelined do
+      Status.as_home_timeline(account).limit(FeedManager::MAX_ITEMS / 4).each do |status|
+        next if status.direct_visibility? || FeedManager.instance.filter?(:home, status, account)
+        redis.zadd(FeedManager.instance.key(:home, account.id), status.id, status.reblog? ? status.reblog_of_id : status.id)
+      end
     end
   end
 
diff --git a/app/workers/processing_worker.rb b/app/workers/processing_worker.rb
index 4a467d924..5df404bcc 100644
--- a/app/workers/processing_worker.rb
+++ b/app/workers/processing_worker.rb
@@ -3,7 +3,7 @@
 class ProcessingWorker
   include Sidekiq::Worker
 
-  sidekiq_options queue: 'pull', backtrace: true
+  sidekiq_options backtrace: true
 
   def perform(account_id, body)
     ProcessFeedService.new.call(body, Account.find(account_id))
diff --git a/app/workers/regeneration_worker.rb b/app/workers/regeneration_worker.rb
index 82665b581..da8b845f6 100644
--- a/app/workers/regeneration_worker.rb
+++ b/app/workers/regeneration_worker.rb
@@ -3,7 +3,7 @@
 class RegenerationWorker
   include Sidekiq::Worker
 
-  sidekiq_options queue: 'pull', backtrace: true
+  sidekiq_options queue: 'pull', backtrace: true, unique: :until_executed
 
   def perform(account_id, _ = :home)
     PrecomputeFeedService.new.call(:home, Account.find(account_id))
diff --git a/app/workers/salmon_worker.rb b/app/workers/salmon_worker.rb
index 2888b574b..fc95ce47f 100644
--- a/app/workers/salmon_worker.rb
+++ b/app/workers/salmon_worker.rb
@@ -3,7 +3,7 @@
 class SalmonWorker
   include Sidekiq::Worker
 
-  sidekiq_options queue: 'pull', backtrace: true
+  sidekiq_options backtrace: true
 
   def perform(account_id, body)
     ProcessInteractionService.new.call(body, Account.find(account_id))