require 'rails_helper'

module Mks
  module Rate
    RSpec.describe ServiceBundleService do
      before(:each) do
        @service = ServiceBundleService.new
      end

      describe '#add_services' do
        it 'adds new services' do
          bundle = create(:service_bundle)
          s1 = create(:chargeable_service)
          s2 = create(:chargeable_service)
          s3 = create(:chargeable_service)

          expect(bundle.chargeable_services.count).to eq 0

          @service.add_services(bundle, [s1.id, s2.id, s3.id])
          bundle.reload

          expect(bundle.chargeable_services.count).to eq 3
        end

        it 'removes non selected services' do
          bundle = create(:service_bundle)
          s1 = create(:chargeable_service)
          s2 = create(:chargeable_service)
          s3 = create(:chargeable_service)

          bundle.chargeable_services << [s1, s2, s3]
          expect(bundle.chargeable_services.count).to eq 3

          @service.add_services(bundle, [s3.id])
          bundle.reload
          expect(bundle.chargeable_services.count).to eq 1
          expect(bundle.chargeable_services[0].id).to eq s3.id
        end

        it 'adds newly selected and removes non selected' do
          bundle = create(:service_bundle)
          s1 = create(:chargeable_service)
          s2 = create(:chargeable_service)
          s3 = create(:chargeable_service)
          s4 = create(:chargeable_service)

          bundle.chargeable_services << [s1, s2]
          expect(bundle.chargeable_services.count).to eq 2

          @service.add_services(bundle, [s2.id, s3.id, s4.id])
          bundle.reload
          expect(bundle.chargeable_services.count).to eq 3
          expect(bundle.chargeable_services).not_to include s1
        end
      end
    end
  end
end