Feature: User Notification Objects (#752)

Co-authored-by: Pranav Raj S <pranavrajs@gmail.com>

app/builders/notification_builder.rb

@@ -0,0 +1,32 @@
+class NotificationBuilder
+  pattr_initialize [:notification_type!, :user!, :account!, :primary_actor!]
+
+  def perform
+    return unless user_subscribed_to_notification?
+
+    build_notification
+  end
+
+  private
+
+  def secondary_actor
+    Current.user
+  end
+
+  def user_subscribed_to_notification?
+    notification_setting = user.notification_settings.find_by(account_id: account.id)
+    return true if notification_setting.public_send("email_#{notification_type}?")
+    return true if notification_setting.public_send("push_#{notification_type}?")
+
+    false
+  end
+
+  def build_notification
+    user.notifications.create!(
+      notification_type: notification_type,
+      account: account,
+      primary_actor: primary_actor,
+      secondary_actor: secondary_actor
+    )
+  end
+end