Add notification policies and notification requests (#29366)

db/migrate/20240221195424_add_filtered_to_notifications.rb

@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddFilteredToNotifications < ActiveRecord::Migration[7.1]
+  def change
+    add_column :notifications, :filtered, :boolean, default: false, null: false
+  end
+end

db/migrate/20240221195828_create_notification_requests.rb

@@ -0,0 +1,18 @@
+# frozen_string_literal: true
+
+class CreateNotificationRequests < ActiveRecord::Migration[7.1]
+  def change
+    create_table :notification_requests do |t|
+      t.references :account, null: false, foreign_key: { on_delete: :cascade }, index: false
+      t.references :from_account, null: false, foreign_key: { to_table: :accounts, on_delete: :cascade }
+      t.references :last_status, null: false, foreign_key: { to_table: :statuses, on_delete: :nullify }
+      t.bigint :notifications_count, null: false, default: 0
+      t.boolean :dismissed, null: false, default: false
+
+      t.timestamps
+    end
+
+    add_index :notification_requests, [:account_id, :from_account_id], unique: true
+    add_index :notification_requests, [:account_id, :id], where: 'dismissed = false', order: { id: :desc }
+  end
+end

db/migrate/20240221211359_notification_request_ids_to_timestamp_ids.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class NotificationRequestIdsToTimestampIds < ActiveRecord::Migration[7.1]
+  def up
+    safety_assured do
+      execute("ALTER TABLE notification_requests ALTER COLUMN id SET DEFAULT timestamp_id('notification_requests')")
+    end
+  end
+
+  def down
+    execute('LOCK notification_requests')
+    execute("SELECT setval('notification_requests_id_seq', (SELECT MAX(id) FROM notification_requests))")
+    execute("ALTER TABLE notification_requests ALTER COLUMN id SET DEFAULT nextval('notification_requests_id_seq')")
+  end
+end

db/migrate/20240222193403_create_notification_permissions.rb

@@ -0,0 +1,12 @@
+# frozen_string_literal: true
+
+class CreateNotificationPermissions < ActiveRecord::Migration[7.1]
+  def change
+    create_table :notification_permissions do |t|
+      t.references :account, null: false, foreign_key: true
+      t.references :from_account, null: false, foreign_key: { to_table: :accounts }
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20240222203722_create_notification_policies.rb

@@ -0,0 +1,15 @@
+# frozen_string_literal: true
+
+class CreateNotificationPolicies < ActiveRecord::Migration[7.1]
+  def change
+    create_table :notification_policies do |t|
+      t.references :account, null: false, foreign_key: true, index: { unique: true }
+      t.boolean :filter_not_following, null: false, default: false
+      t.boolean :filter_not_followers, null: false, default: false
+      t.boolean :filter_new_accounts, null: false, default: false
+      t.boolean :filter_private_mentions, null: false, default: true
+
+      t.timestamps
+    end
+  end
+end

db/migrate/20240227191620_add_filtered_index_on_notifications.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class AddFilteredIndexOnNotifications < ActiveRecord::Migration[7.1]
+  disable_ddl_transaction!
+
+  def change
+    add_index :notifications, [:account_id, :id, :type], where: 'filtered = false', order: { id: :desc }, name: 'index_notifications_on_filtered', algorithm: :concurrently
+  end
+end

db/migrate/20240304090449_migrate_interaction_settings_to_policy.rb

@@ -0,0 +1,46 @@
+# frozen_string_literal: true
+
+class MigrateInteractionSettingsToPolicy < ActiveRecord::Migration[7.1]
+  disable_ddl_transaction!
+
+  # Dummy classes, to make migration possible across version changes
+  class Account < ApplicationRecord
+    has_one :user, inverse_of: :account
+    has_one :notification_policy, inverse_of: :account
+  end
+
+  class User < ApplicationRecord
+    belongs_to :account
+  end
+
+  class NotificationPolicy < ApplicationRecord
+    belongs_to :account
+  end
+
+  def up
+    User.includes(account: :notification_policy).find_each do |user|
+      deserialized_settings = Oj.load(user.attributes_before_type_cast['settings'])
+      policy = user.account.notification_policy || user.account.build_notification_policy
+      requires_new_policy = false
+
+      if deserialized_settings['interactions.must_be_follower']
+        policy.filter_not_followers = true
+        requires_new_policy = true
+      end
+
+      if deserialized_settings['interactions.must_be_following']
+        policy.filter_not_following = true
+        requires_new_policy = true
+      end
+
+      if deserialized_settings['interactions.must_be_following_dm']
+        policy.filter_private_mentions = true
+        requires_new_policy = true
+      end
+
+      policy.save if requires_new_policy && policy.changed?
+    end
+  end
+
+  def down; end
+end