Add conversations API (#8832)

* Add conversations API

* Add web UI for conversations

* Add test for conversations API

* Add tests for ConversationAccount

* Improve web UI

* Rename ConversationAccount to AccountConversation

* Remove conversations on block and mute

* Change last_status_id to be a denormalization of status_ids

* Add optimistic locking

1 files changed, 32 insertions, 5 deletions

diff --git a/app/services/after_block_service.rb b/app/services/after_block_service.rb
index a7dce08c7..706db0d63 100644
--- a/app/services/after_block_service.rb
+++ b/app/services/after_block_service.rb
@@ -2,16 +2,43 @@
 
 class AfterBlockService < BaseService
   def call(account, target_account)
-    FeedManager.instance.clear_from_timeline(account, target_account)
+    clear_home_feed(account, target_account)
     clear_notifications(account, target_account)
+    clear_conversations(account, target_account)
   end
 
   private
 
+  def clear_home_feed(account, target_account)
+    FeedManager.instance.clear_from_timeline(account, target_account)
+  end
+
+  def clear_conversations(account, target_account)
+    AccountConversation.where(account: account)
+                       .where('? = ANY(participant_account_ids)', target_account.id)
+                       .in_batches
+                       .destroy_all
+  end
+
   def clear_notifications(account, target_account)
-    Notification.where(account: account).joins(:follow).where(activity_type: 'Follow', follows: { account_id: target_account.id }).delete_all
-    Notification.where(account: account).joins(mention: :status).where(activity_type: 'Mention', statuses: { account_id: target_account.id }).delete_all
-    Notification.where(account: account).joins(:favourite).where(activity_type: 'Favourite', favourites: { account_id: target_account.id }).delete_all
-    Notification.where(account: account).joins(:status).where(activity_type: 'Status', statuses: { account_id: target_account.id }).delete_all
+    Notification.where(account: account)
+                .joins(:follow)
+                .where(activity_type: 'Follow', follows: { account_id: target_account.id })
+                .delete_all
+
+    Notification.where(account: account)
+                .joins(mention: :status)
+                .where(activity_type: 'Mention', statuses: { account_id: target_account.id })
+                .delete_all
+
+    Notification.where(account: account)
+                .joins(:favourite)
+                .where(activity_type: 'Favourite', favourites: { account_id: target_account.id })
+                .delete_all
+
+    Notification.where(account: account)
+                .joins(:status)
+                .where(activity_type: 'Status', statuses: { account_id: target_account.id })
+                .delete_all
   end
 end