It should support plugins

[ChrisMacNaughton]

A NotificationPlugin shoud be a single file that's placed into lib/custom_notification_plugins and includes metadata to describe the subclass of NotificationPlugin that will be run.

A NotificationPlugin Has

• Name
• Custom Options: stored in the database as JSON, passed at init time
• respond method
  • Called with details of the event, same as webhook
    • event type (CRUD)
    • model type (user, group, user-group)
    • details of the model
• methods to inform about success, logs, stats, etc

A NotificationPlugin Is

• Configurable by an admin, similar to webhooks
• run via Sidekiq
• identified at runtime by filesystem introspection
• queued like a webhook
  • possible to configure multiple versions
  • webhooks could be rewritten into this framework
• retryable like webhooks
• run with a time limit

A NotificationPlugin Can

• Integrate into other systems more deeply that webhooks
• Integrates deeply into EyeDP
  • Consider ways to limit?