Class: Insika::Commands::DeleteArtifact

Inherits:
Object
  • Object
show all
Defined in:
lib/insika/commands/delete_artifact.rb

Overview

The Studio's delete on the Artifacts tab — a bus command, like every Studio mutation (the Studio never writes a store directly). Idempotent: an unknown id is a no-op, not an error.

Instance Method Summary collapse

Constructor Details

#initialize(artifact_store:, event_stream:) ⇒ DeleteArtifact

Returns a new instance of DeleteArtifact.



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# File 'lib/insika/commands/delete_artifact.rb', line 11

def initialize(artifact_store:, event_stream:)
  @artifact_store = artifact_store
  @event_stream = event_stream
end

Instance Method Details

#call(command) ⇒ Object

-> { deleted: id } | { deleted: nil } (unknown id).

Raises:



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# File 'lib/insika/commands/delete_artifact.rb', line 17

def call(command)
  id = Coercion.presence(command.payload[:id] || command.payload["id"])
  raise ValidationError, "id is required" if id.nil?

  deleted = @artifact_store.delete(id.to_s)
  if deleted
    @event_stream.emit(Insika::Event.new(
                         type: :artifact_deleted,
                         data: { id: id.to_s },
                         meta: { at: Time.now.utc.iso8601 }
                       ))
    { deleted: id.to_s }
  else
    { deleted: nil }
  end
end