Dry transactions

dry_transactions.rb

class CreateAction < BaseTransaction
  Contract = Dry::Validation::Contract.build do
    params do
      required(:mark_task_discussion_done).maybe(:bool)
      required(:task_message).hash do
        required(:user_id).filled(:integer)
        required(:task_discussion_id).filled(:integer)
        required(:body).filled(:string)
        optional(:add_answer_attachments).maybe(:bool)
        optional(:attachments).maybe(:array?)
      end
    end
  end

  step :validate_params
  step :create_task_message
  step :done_task_discussion

  private

  def validate_params(params)
    result = Contract.call(params)
    return Success(result.to_h) if result.success?

    Failure(result.errors.to_h) # rubocop:disable Rails/DeprecatedActiveModelErrorsMethods
  end

  def create_task_message(params)
    result = ::TaskMessages::Create.call(params[:task_message])
    Success(
      {
        task_discussion: result.success.task_discussion,
        mark_as_done: params[:mark_task_discussion_done]
      }
    )
  end

  def done_task_discussion(task_discussion:, mark_as_done:)
    return Success() unless mark_as_done

    ::TaskDiscussions::Done.call(task_discussion)
  end
end