Add Packages::Debian::UpdateDistributionService

app/services/packages/debian/update_distribution_service.rb

+# frozen_string_literal: true
+
+module Packages
+  module Debian
+    class UpdateDistributionService
+      def initialize(distribution, params)
+        @distribution, @params = distribution, params
+
+        @components = params.delete(:components)
+
+        @architectures = params.delete(:architectures)
+        @architectures += ['all'] unless @architectures.nil?
+
+        @errors = []
+      end
+
+      def execute
+        update_distribution
+      end
+
+      private
+
+      attr_reader :distribution, :params, :components, :architectures, :errors
+
+      def append_errors(record, prefix = '')
+        return if record.valid?
+
+        prefix = "#{prefix} " unless prefix.empty?
+        @errors += record.errors.full_messages.map { |message| "#{prefix}#{message}" }
+      end
+
+      def update_distribution
+        distribution.transaction do
+          if distribution.update(params)
+            update_components if components
+            update_architectures if architectures
+
+            success
+          else
+            append_errors(distribution)
+            error
+          end
+        end || error
+      end
+
+      def update_components
+        update_objects(distribution.components, components, error_label: 'Component')
+      end
+
+      def update_architectures
+        update_objects(distribution.architectures, architectures, error_label: 'Architecture')
+      end
+
+      def update_objects(objects, object_names_from_params, error_label: )
+        current_object_names = objects.map(&:name)
+        missing_object_names = object_names_from_params - current_object_names
+        extra_object_names = current_object_names - object_names_from_params
+
+        missing_object_names.each do |name|
+          new_object = objects.create(name: name)
+          append_errors(new_object, error_label)
+          raise ActiveRecord::Rollback unless new_object.persisted?
+        end
+
+        extra_object_names.each do |name|
+          object = objects.with_name(name).first
+          raise ActiveRecord::Rollback unless object.destroy
+        end
+      end
+
+      def success
+        ServiceResponse.success(payload: { distribution: distribution })
+      end
+
+      def error
+        ServiceResponse.error(message: errors.to_sentence, payload: { distribution: distribution })
+      end
+    end
+  end
+end

spec/services/packages/debian/update_distribution_service_spec.rb

+# frozen_string_literal: true
+
+require 'spec_helper'
+
+RSpec.describe Packages::Debian::UpdateDistributionService do
+  RSpec.shared_examples 'Update Debian Distribution' do |expected_message, expected_components, expected_architectures|
+    it 'returns ServiceResponse', :aggregate_failures do
+      expect(distribution).to receive(:update).with(simple_params).and_call_original if expected_message.nil?
+
+      expect { response }
+        .to not_change { container.debian_distributions.klass.all.count }
+        .and not_change { container.debian_distributions.count }
+        .and not_change { component1.class.all.count }
+        .and not_change { architecture1.class.all.count }
+
+      expect(response).to be_a(ServiceResponse)
+      expect(response.success?).to eq(expected_message.nil?)
+      expect(response.error?).to eq(!expected_message.nil?)
+      expect(response.message).to eq(expected_message)
+
+      expect(response.payload).to eq(distribution: distribution)
+
+      distribution.reload
+      distribution.components.reload
+      distribution.architectures.reload
+
+      if expected_message.nil?
+        simple_params.each_pair do |name, value|
+          expect(distribution.send(name)).to eq(value)
+        end
+      else
+        original_params.each_pair do |name, value|
+          expect(distribution.send(name)).to eq(value)
+        end
+      end
+
+      expect(distribution.components.map(&:name)).to contain_exactly(*expected_components)
+      expect(distribution.architectures.map(&:name)).to contain_exactly(*expected_architectures)
+    end
+  end
+
+  RSpec.shared_examples 'Debian Update Distribution Service' do |container_type, can_freeze|
+    context "with a Debian #{container_type} distribution" do
+      let_it_be(:container, freeze: can_freeze) { create(container_type) } # rubocop:disable Rails/SaveBang
+      let_it_be(:distribution, reload: true) { create("debian_#{container_type}_distribution", container: container) }
+      let_it_be(:component1) { create("debian_#{container_type}_component", distribution: distribution, name: 'component1') }
+      let_it_be(:component2) { create("debian_#{container_type}_component", distribution: distribution, name: 'component2') }
+      let_it_be(:architecture0) { create("debian_#{container_type}_architecture", distribution: distribution, name: 'all') }
+      let_it_be(:architecture1) { create("debian_#{container_type}_architecture", distribution: distribution, name: 'architecture1') }
+      let_it_be(:architecture2) { create("debian_#{container_type}_architecture", distribution: distribution, name: 'architecture2') }
+
+      let(:original_params) do
+        {
+          suite: nil,
+          origin: nil,
+          label: nil,
+          version: nil,
+          description: nil,
+          valid_time_duration_seconds: nil,
+          automatic: true,
+          automatic_upgrades: false
+        }
+      end
+
+      let(:params) { {} }
+      let(:simple_params) { params.except(:components, :architectures) }
+
+      subject { described_class.new(distribution, params) }
+
+      let(:response) { subject.execute }
+
+      context 'with valid simple params' do
+        let(:params) do
+          {
+            suite: 'my-suite',
+            origin: 'my-origin',
+            label: 'my-label',
+            version: '42.0',
+            description: 'my-description',
+            valid_time_duration_seconds: 7.days,
+            automatic: false,
+            automatic_upgrades: true
+          }
+        end
+
+        it_behaves_like 'Update Debian Distribution', nil, %w[component1 component2], %w[all architecture1 architecture2]
+      end
+
+      context 'with invalid simple params' do
+        let(:params) do
+          {
+            suite: 'suite erronée',
+            origin: 'origin erronée',
+            label: 'label erronée',
+            version: 'version erronée',
+            description: 'description erronée',
+            valid_time_duration_seconds: 1.hour
+          }
+        end
+
+        it_behaves_like 'Update Debian Distribution', 'Suite is invalid, Origin is invalid, Label is invalid, Version is invalid, and Valid time duration seconds must be greater than or equal to 86400', %w[component1 component2], %w[all architecture1 architecture2]
+      end
+
+      context 'with valid components and architectures' do
+        let(:params) do
+          {
+            suite: 'my-suite',
+            components: %w[component2 component3],
+            architectures: %w[architecture2 architecture3]
+          }
+        end
+
+        it_behaves_like 'Update Debian Distribution', nil, %w[component2 component3], %w[all architecture2 architecture3]
+      end
+
+      context 'with invalid components' do
+        let(:params) do
+          {
+            suite: 'my-suite',
+            components: %w[component2 erroné],
+            architectures: %w[architecture2 architecture3]
+          }
+        end
+
+        it_behaves_like 'Update Debian Distribution', 'Component Name is invalid', %w[component1 component2], %w[all architecture1 architecture2]
+      end
+
+      context 'with invalid architectures' do
+        let(:params) do
+          {
+            suite: 'my-suite',
+            components: %w[component2 component3],
+            architectures: %w[architecture2 erroné]
+          }
+        end
+
+        it_behaves_like 'Update Debian Distribution', 'Architecture Name is invalid', %w[component1 component2], %w[all architecture1 architecture2]
+      end
+    end
+  end
+
+  it_behaves_like 'Debian Update Distribution Service', :project, true
+  it_behaves_like 'Debian Update Distribution Service', :group, false
+end