Improve account suspension speed and completeness (#9290)

- Some associations were missing from the clean-up
- Some attributes were not reset on suspension
- Skip federation and streaming deletes when purging a dead domain
- Move account association definitions to concern

app/models/account.rb

@@ -49,6 +49,7 @@ class Account < ApplicationRecord
   USERNAME_RE = /[a-z0-9_]+([a-z0-9_\.-]+[a-z0-9_]+)?/i
   MENTION_RE  = /(?<=^|[^\/[:word:]])@((#{USERNAME_RE})(?:@[a-z0-9\.\-]+[a-z0-9]+)?)/i
 
+  include AccountAssociations
   include AccountAvatar
   include AccountFinderConcern
   include AccountHeader
@@ -59,9 +60,6 @@ class Account < ApplicationRecord
 
   enum protocol: [:ostatus, :activitypub]
 
-  # Local users
-  has_one :user, inverse_of: :account
-
   validates :username, presence: true
 
   # Remote user validations
@@ -76,45 +74,6 @@ class Account < ApplicationRecord
   validates :note, length: { maximum: 160 }, if: -> { local? && will_save_change_to_note? }
   validates :fields, length: { maximum: 4 }, if: -> { local? && will_save_change_to_fields? }
 
-  # Timelines
-  has_many :stream_entries, inverse_of: :account, dependent: :destroy
-  has_many :statuses, inverse_of: :account, dependent: :destroy
-  has_many :favourites, inverse_of: :account, dependent: :destroy
-  has_many :mentions, inverse_of: :account, dependent: :destroy
-  has_many :notifications, inverse_of: :account, dependent: :destroy
-
-  # Pinned statuses
-  has_many :status_pins, inverse_of: :account, dependent: :destroy
-  has_many :pinned_statuses, -> { reorder('status_pins.created_at DESC') }, through: :status_pins, class_name: 'Status', source: :status
-
-  # Endorsements
-  has_many :account_pins, inverse_of: :account, dependent: :destroy
-  has_many :endorsed_accounts, through: :account_pins, class_name: 'Account', source: :target_account
-
-  # Media
-  has_many :media_attachments, dependent: :destroy
-
-  # PuSH subscriptions
-  has_many :subscriptions, dependent: :destroy
-
-  # Report relationships
-  has_many :reports
-  has_many :targeted_reports, class_name: 'Report', foreign_key: :target_account_id
-
-  has_many :report_notes, dependent: :destroy
-  has_many :custom_filters, inverse_of: :account, dependent: :destroy
-
-  # Moderation notes
-  has_many :account_moderation_notes, dependent: :destroy
-  has_many :targeted_moderation_notes, class_name: 'AccountModerationNote', foreign_key: :target_account_id, dependent: :destroy
-
-  # Lists
-  has_many :list_accounts, inverse_of: :account, dependent: :destroy
-  has_many :lists, through: :list_accounts
-
-  # Account migrations
-  belongs_to :moved_to_account, class_name: 'Account', optional: true
-
   scope :remote, -> { where.not(domain: nil) }
   scope :local, -> { where(domain: nil) }
   scope :expiring, ->(time) { remote.where.not(subscription_expires_at: nil).where('subscription_expires_at < ?', time) }
@@ -452,6 +411,7 @@ class Account < ApplicationRecord
   before_create :generate_keys
   before_validation :normalize_domain
   before_validation :prepare_contents, if: :local?
+  before_destroy :clean_feed_manager
 
   private
 
@@ -477,4 +437,19 @@ class Account < ApplicationRecord
   def emojifiable_text
     [note, display_name, fields.map(&:value)].join(' ')
   end
+
+  def clean_feed_manager
+    reblog_key       = FeedManager.instance.key(:home, id, 'reblogs')
+    reblogged_id_set = Redis.current.zrange(reblog_key, 0, -1)
+
+    Redis.current.pipelined do
+      Redis.current.del(FeedManager.instance.key(:home, id))
+      Redis.current.del(reblog_key)
+
+      reblogged_id_set.each do |reblogged_id|
+        reblog_set_key = FeedManager.instance.key(:home, id, "reblogs:#{reblogged_id}")
+        Redis.current.del(reblog_set_key)
+      end
+    end
+  end
 end