Add wrapped db transaction to dry transactions

db_transaction_adapter.rb

# frozen_string_literal: true

module DbTransactionAdapter
  # Add the ability to wrap number of steps into database transaction
  #
  # @example
  # db_transaction, :db do
  #   step :validate
  #   check :clear
  #   step :create # failure here will rollback previous side effects
  # end
  #
  # You can pass step_args using
  # ServiceClass.new.with_step_args(
  #   db: [
  #     step_args: {
  #       validate: [
  #         config: { seconds: 100, bypass: '123456' },
  #       ],
  #       create: [
  #         expiry: 1.day,
  #         secret: 'secret',
  #       ]
  #     }
  #   ]
  # ).call({ token: email, code: '123456' })
  #
  def db_transaction(key, &)
    step key

    define_method key do |params, step_args: {}|
      result = nil
      ActiveRecord::Base.transaction do
        klass = Class.new(self.class)
        klass.instance_exec(&)
        new_klass = klass.new.with_step_args(**step_args)
        result = new_klass.stack.call(Success(params))
        raise ActiveRecord::Rollback if result.failure?
      end
      result
    rescue ActiveRecord::Rollback
      result
    end
  end
end