require 'spec_helper'

module Bosh::Director
  module DeploymentPlan
    describe Planner do
      subject(:planner) do
        described_class.new(
          deployment_name,
          minimal_manifest,
          YAML.dump(minimal_manifest),
          cloud_configs,
          runtime_config_consolidator,
          deployment_model,
          options,
        )
      end

      let(:options) do
        {}
      end
      let(:event_log) { instance_double('Bosh::Director::EventLog::Log') }
      let(:cloud_configs) { [] }
      let(:runtime_config_consolidator) { instance_double(Bosh::Director::RuntimeConfig::RuntimeConfigsConsolidator) }
      let(:manifest_text) { generate_manifest_text }
      let(:deployment_name) { 'mycloud' }
      let(:deployment_model) { FactoryBot.create(:models_deployment) }

      def generate_manifest_text
        YAML.dump minimal_manifest
      end

      let(:minimal_manifest) { SharedSupport::DeploymentManifestHelper.minimal_manifest }

      describe 'with valid options' do
        let(:stemcell_model) { Bosh::Director::Models::Stemcell.create(name: 'default', version: '1', cid: 'abc') }
        let(:vm_type) { VmType.new('name' => 'vm_type') }

        before do
          deployment_model.add_stemcell(stemcell_model)
          deployment_model.add_variable_set(FactoryBot.create(:models_variable_set, deployment: deployment_model))
          cloud_planner = CloudPlanner.new(
            networks: [Network.new('default', per_spec_logger)],
            disk_types: [],
            availability_zones_list: {},
            vm_type: vm_type,
            compilation: nil,
            logger: per_spec_logger,
          )
          planner.cloud_planner = cloud_planner
          allow(Config).to receive_message_chain(:current_job, :username).and_return('username')
          task = FactoryBot.create(:models_task, state: 'processing')
          allow(Config).to receive_message_chain(:current_job, :task_id).and_return(task.id)
        end

        it 'manifest should be immutable' do
          subject = Planner.new(
            deployment_name,
            minimal_manifest,
            YAML.dump(minimal_manifest),
            cloud_configs,
            runtime_config_consolidator,
            deployment_model,
            options,
          )
          minimal_manifest['name'] = 'new_name'
          expect(subject.uninterpolated_manifest_hash['name']).to eq('minimal')
        end

        it 'should parse recreate' do
          expect(planner.recreate).to be_falsey

          plan = described_class.new(
            deployment_name,
            manifest_text,
            YAML.dump(manifest_text),
            cloud_configs,
            runtime_config_consolidator,
            deployment_model,
            'recreate' => true,
          )
          expect(plan.recreate).to be_truthy
        end

        it 'should parse recreate' do
          expect(planner.recreate_persistent_disks).to be_falsey
          expect(planner.recreate_persistent_disks?).to be_falsey

          plan = described_class.new(
            deployment_name,
            manifest_text,
            YAML.dump(manifest_text),
            cloud_configs,
            runtime_config_consolidator,
            deployment_model,
            'recreate_persistent_disks' => true,
          )
          expect(plan.recreate_persistent_disks).to be_truthy
          expect(plan.recreate_persistent_disks?).to be_truthy
        end

        it 'should parse deploy' do
          expect(planner.is_deploy?).to be_falsey

          plan = described_class.new(
            deployment_name,
            manifest_text,
            YAML.dump(manifest_text),
            cloud_configs,
            runtime_config_consolidator,
            deployment_model,
            'is_deploy_action' => true,
            )
          expect(plan.is_deploy?).to be_truthy
        end

        it 'creates a vm requirements cache' do
          expect(planner.vm_resources_cache).to be_instance_of(VmResourcesCache)
        end

        describe '#instance_plans_with_create_swap_delete_and_needs_duplicate_vm' do
          let(:instance_plan) { instance_double(InstancePlan) }
          let(:instance_group) do
            instance_double(
              'Bosh::Director::DeploymentPlan::InstanceGroup',
              name: 'fake-job1-name',
              canonical_name: 'fake-job1-cname',
              service?: true,
              errand?: false,
              should_create_swap_delete?: true,
              create_swap_delete?: true,
              unignored_instance_plans_needing_duplicate_vm: [instance_plan],
            )
          end

          before { subject.add_instance_group(instance_group) }

          it 'should return instance groups that are create-swap-delete enabled' do
            expect(subject.instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to eq([instance_plan])
          end

          context 'when no instance groups have create-swap-delete enabled' do
            before do
              allow(instance_group).to receive(:should_create_swap_delete?).and_return(false)
            end

            it 'should return empty array' do
              expect(subject.instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to be_empty
            end
          end

          context 'when there are both create-swap-delete and delete-create instance groups' do
            let(:delete_create_instance_group) do
              instance_double(
                'Bosh::Director::DeploymentPlan::InstanceGroup',
                name: 'a-delete-create-job-name',
                canonical_name: 'a-delete-create-job-cname',
                service?: true,
                errand?: false,
                should_create_swap_delete?: false,
                create_swap_delete?: false,
                unignored_instance_plans_needing_duplicate_vm: [],
              )
            end

            before { subject.add_instance_group(delete_create_instance_group) }

            it 'should return only the create-swap-delete instance' do
              expect(subject.instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to eq([instance_plan])
            end
          end
        end

        describe '#skipped_instance_plans_with_create_swap_delete_and_needs_duplicate_vm' do
          let(:instance_plan) { instance_double(InstancePlan) }
          let(:instance_group) do
            instance_double(
              'Bosh::Director::DeploymentPlan::InstanceGroup',
              name: 'fake-job1-name',
              canonical_name: 'fake-job1-cname',
              service?: true,
              errand?: false,
              should_create_swap_delete?: false,
              create_swap_delete?: true,
              unignored_instance_plans_needing_duplicate_vm: [instance_plan],
            )
          end

          before { subject.add_instance_group(instance_group) }

          it 'returns instances that want create-swap-delete but cannot be' do
            expect(subject.skipped_instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to eq([instance_plan])
          end

          context 'when instance_group does not want create-swap-delete' do
            before do
              allow(instance_group).to receive(:should_create_swap_delete?).and_return(false)
              allow(instance_group).to receive(:create_swap_delete?).and_return(false)
            end

            it 'should return empty array' do
              expect(subject.skipped_instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to be_empty
            end
          end

          context 'when instance_group wants create-swap-delete and can be' do
            before do
              allow(instance_group).to receive(:should_create_swap_delete?).and_return(true)
              allow(instance_group).to receive(:create_swap_delete?).and_return(true)
            end

            it 'should return empty array' do
              expect(subject.skipped_instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to be_empty
            end
          end

          context 'when there are both create-swap-delete and delete-create instance groups' do
            let(:delete_create_instance_group) do
              instance_double(
                'Bosh::Director::DeploymentPlan::InstanceGroup',
                name: 'a-delete-create-job-name',
                canonical_name: 'a-delete-create-job-cname',
                service?: true,
                errand?: false,
                should_create_swap_delete?: false,
                create_swap_delete?: false,
                unignored_instance_plans_needing_duplicate_vm: [],
              )
            end

            before { subject.add_instance_group(delete_create_instance_group) }

            it 'still returns the correct instance' do
              expect(subject.skipped_instance_plans_with_create_swap_delete_and_needs_duplicate_vm).to eq([instance_plan])
            end
          end
        end

        describe '#deployment_wide_options' do
          let(:options) do
            {
              'fix' => true,
              'tags' => { 'key1' => 'value1' },
              'some_other_option' => 'disappears',
            }
          end

          it 'returns fix and tags values set on planner' do
            expect(subject.deployment_wide_options).to eq(
              fix: true,
              tags: { 'key1' => 'value1' },
            )
          end

          context 'when fix and tag values are not present' do
            let(:options) do
              {}
            end

            it 'returns fix: false and empty tags hash' do
              expect(subject.deployment_wide_options).to eq(
                fix: false,
                tags: {},
              )
            end
          end
        end

        describe '#instance_groups_starting_on_deploy' do
          before { subject.add_instance_group(job1) }
          let(:job1) do
            instance_double('Bosh::Director::DeploymentPlan::InstanceGroup',
                            name: 'fake-job1-name',
                            canonical_name: 'fake-job1-cname',
                            service?: true,
                            errand?: false)
          end

          before { subject.add_instance_group(job2) }
          let(:job2) do
            instance_double('Bosh::Director::DeploymentPlan::InstanceGroup',
                            name: 'fake-job2-name',
                            canonical_name: 'fake-job2-cname',
                            lifecycle: 'errand',
                            service?: false,
                            errand?: true)
          end

          context 'with errand running via keep-alive' do
            before do
              allow(job2).to receive(:instances).and_return([
                                                              instance_double('Bosh::Director::DeploymentPlan::Instance',
                                                                              vm_created?: true),
                                                            ])
            end

            it 'returns both the regular job and keep-alive errand' do
              expect(subject.instance_groups_starting_on_deploy).to eq([job1, job2])
            end
          end

          context 'with errand not running' do
            before do
              allow(job2)
                .to receive(:instances)
                .and_return(
                  [
                    instance_double(
                      'Bosh::Director::DeploymentPlan::Instance',
                      vm_created?: false,
                      model: instance_double('Bosh::Director::Models::Instance', state: 'started'),
                    ),
                  ],
                )
            end

            it 'returns only the regular job' do
              expect(subject.instance_groups_starting_on_deploy).to eq([job1])
            end
          end
        end

        describe '#errand_instance_groups' do
          let(:instance_group_1) do
            instance_double(
              'Bosh::Director::DeploymentPlan::InstanceGroup',
              name: 'fake-instance-group-1-name',
              canonical_name: 'fake-instance-group-1-cname',
              service?: true,
              errand?: false,
            )
          end

          let(:instance_group_2) do
            instance_double(
              'Bosh::Director::DeploymentPlan::InstanceGroup',
              name: 'fake-instance-group-2-name',
              canonical_name: 'fake-instance-group-2-cname',
              service?: false,
              errand?: true,
            )
          end

          let(:instance_group_3) do
            instance_double(
              'Bosh::Director::DeploymentPlan::InstanceGroup',
              name: 'fake-instance-group-3-name',
              canonical_name: 'fake-instance-group-3-cname',
              service?: false,
              errand?: true,
            )
          end

          before do
            subject.add_instance_group(instance_group_1)
            subject.add_instance_group(instance_group_2)
            subject.add_instance_group(instance_group_3)
          end

          it 'return instance groups with errand lifecylce' do
            expect(subject.errand_instance_groups).to match_array([instance_group_2, instance_group_3])
          end
        end

        describe '#use_short_dns_addresses?' do
          context 'when deployment use_short_dns_addresses is defined' do
            context 'when deployment use_short_dns_addresses is TRUE' do
              before do
                subject.set_features(DeploymentFeatures.new(true, true))
              end

              it 'returns TRUE' do
                expect(subject.use_short_dns_addresses?).to be_truthy
              end
            end

            context 'when deployment use_short_dns_addresses is FALSE' do
              before do
                subject.set_features(DeploymentFeatures.new(true, false))
              end

              it 'returns FALSE' do
                expect(subject.use_short_dns_addresses?).to be_falsey
              end
            end
          end

          context 'when deployment use_short_dns_addresses is NOT defined' do
            before do
              subject.set_features(DeploymentFeatures.new)
            end

            it 'returns FALSE' do
              expect(subject.use_short_dns_addresses?).to be_falsey
            end
          end
        end

        describe '#use_dns_addresses?' do
          context 'when director use_dns_addresses flag is TRUE' do
            before do
              allow(Bosh::Director::Config).to receive(:local_dns_use_dns_addresses?).and_return(true)
            end

            context 'when deployment use_dns_addresses is defined' do
              context 'when deployment use_dns_addresses is TRUE' do
                before do
                  subject.set_features(DeploymentFeatures.new(true))
                end

                it 'returns TRUE' do
                  expect(subject.use_dns_addresses?).to be_truthy
                end
              end

              context 'when deployment use_dns_addresses is FALSE' do
                before do
                  subject.set_features(DeploymentFeatures.new(false))
                end

                it 'returns FALSE' do
                  expect(subject.use_dns_addresses?).to be_falsey
                end
              end
            end

            context 'when deployment use_dns_addresses is NOT defined' do
              before do
                subject.set_features(DeploymentFeatures.new)
              end

              it 'returns TRUE' do
                expect(subject.use_dns_addresses?).to be_truthy
              end
            end
          end

          context 'when director use_dns_addresses flag is FALSE' do
            before do
              allow(Bosh::Director::Config).to receive(:local_dns_use_dns_addresses?).and_return(false)
            end

            context 'when deployment use_dns_addresses is defined' do
              context 'when deployment use_dns_addresses is TRUE' do
                before do
                  subject.set_features(DeploymentFeatures.new(true))
                end

                it 'returns TRUE' do
                  expect(subject.use_dns_addresses?).to be_truthy
                end
              end

              context 'when deployment use_dns_addresses is FALSE' do
                before do
                  subject.set_features(DeploymentFeatures.new(false))
                end

                it 'returns FALSE' do
                  expect(subject.use_dns_addresses?).to be_falsey
                end
              end
            end

            context 'when deployment use_dns_addresses is NOT defined' do
              before do
                subject.set_features(DeploymentFeatures.new)
              end

              it 'returns FALSE' do
                expect(subject.use_dns_addresses?).to be_falsey
              end
            end
          end
        end

        describe '#use_link_dns_names?' do
          let(:deployment_features) { DeploymentFeatures.new(true, nil, nil, false, use_link_dns_names) }

          before do
            subject.set_features(deployment_features)
          end

          context 'when deployment use_link_dns_names is TRUE' do
            let(:use_link_dns_names) { true }

            it 'returns TRUE' do
              expect(subject.use_link_dns_names?).to be_truthy
            end
          end

          context 'when deployment use_link_dns_names is FALSE' do
            let(:use_link_dns_names) { false }

            it 'returns FALSE' do
              expect(subject.use_link_dns_names?).to be_falsey
            end
          end
        end

        describe '#randomize_az_placement?' do
          context 'when deployment randomize_az_placement is defined' do
            context 'when deployment randomize_az_placement is TRUE' do
              before do
                subject.set_features(DeploymentFeatures.new(true, true, true))
              end

              it 'returns TRUE' do
                expect(subject.randomize_az_placement?).to be_truthy
              end
            end

            context 'when deployment randomize_az_placement is FALSE' do
              before do
                subject.set_features(DeploymentFeatures.new(true, false, false))
              end

              it 'returns FALSE' do
                expect(subject.randomize_az_placement?).to be_falsey
              end
            end
          end

          context 'when deployment randomize_az_placement is NOT defined' do
            before do
              subject.set_features(DeploymentFeatures.new)
            end

            it 'returns FALSE' do
              expect(subject.randomize_az_placement?).to be_falsey
            end
          end
        end

        describe '#team_names' do
          let(:teams) do
            Bosh::Director::Models::Team.transform_admin_team_scope_to_teams(
              ['bosh.teams.team_1.admin', 'bosh.teams.team_3.admin'],
            )
          end
          before { deployment_model.teams = teams }

          it 'returns team names from the deployment' do
            expect(subject.team_names).to match_array(%w[team_1 team_3])
          end
        end
      end
    end
  end
end
