Module: Nexo::TurboBroadcaster

Defined in:
lib/nexo/turbo_broadcaster.rb

Overview

Opt-in Turbo mirror: subscribes to the nexo.workflow.event notifications and re-broadcasts each event to a per-run Turbo stream. A no-op without turbo-rails, so the plain-Ruby core stays coupling-free.

Class Method Summary collapse

Class Method Details

.subscribe! ⇒ Object

Subscribes once (idempotent via @subscribed) to "nexo.workflow.event" and appends each event to the run's Turbo stream, rendering the overridable "nexo/event" partial. Returns early (no subscription) unless turbo-rails is present, so calling it in a non-Turbo host is harmless.



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# File 'lib/nexo/turbo_broadcaster.rb', line 24

def self.subscribe!
  return unless defined?(::Turbo::StreamsChannel)
  return if @subscribed

  @subscribed = true

  ::ActiveSupport::Notifications.subscribe("nexo.workflow.event") do |*, payload|
    ::Turbo::StreamsChannel.broadcast_append_to(
      "nexo_run_#{payload[:run_id]}",
      target: "nexo_run_#{payload[:run_id]}_events",
      partial: "nexo/event",
      locals: {event: payload[:event]}
    )
  end
end