# frozen_string_literal: true

require 'spec_helper'

RSpec.describe Clusters::Applications::Ingress do
  let(:ingress) { create(:clusters_applications_ingress) }

  it_behaves_like 'having unique enum values'

  include_examples 'cluster application core specs', :clusters_applications_ingress
  include_examples 'cluster application status specs', :clusters_applications_ingress
  include_examples 'cluster application version specs', :clusters_applications_ingress
  include_examples 'cluster application helm specs', :clusters_applications_ingress
  include_examples 'cluster application initial status specs'

  before do
    allow(ClusterWaitForIngressIpAddressWorker).to receive(:perform_in)
    allow(ClusterWaitForIngressIpAddressWorker).to receive(:perform_async)
  end

  describe '#can_uninstall?' do
    subject { ingress.can_uninstall? }

    context 'with jupyter installed' do
      before do
        create(:clusters_applications_jupyter, :installed, cluster: ingress.cluster)
      end

      it 'returns false if external_ip_or_hostname? is true' do
        ingress.external_ip = 'IP'

        is_expected.to be_falsey
      end

      it 'returns false if external_ip_or_hostname? is false' do
        is_expected.to be_falsey
      end
    end

    context 'with jupyter installable' do
      before do
        create(:clusters_applications_jupyter, :installable, cluster: ingress.cluster)
      end

      it 'returns true if external_ip_or_hostname? is true' do
        ingress.external_ip = 'IP'

        is_expected.to be_truthy
      end

      it 'returns false if external_ip_or_hostname? is false' do
        is_expected.to be_falsey
      end
    end

    context 'with jupyter nil' do
      it 'returns false if external_ip_or_hostname? is false' do
        is_expected.to be_falsey
      end

      context 'if external_ip_or_hostname? is true' do
        context 'with IP' do
          before do
            ingress.external_ip = 'IP'
          end

          it { is_expected.to be_truthy }
        end

        context 'with hostname' do
          before do
            ingress.external_hostname = 'example.com'
          end

          it { is_expected.to be_truthy }
        end
      end
    end
  end

  describe '#make_installed!' do
    before do
      application.make_installed!
    end

    let(:application) { create(:clusters_applications_ingress, :installing) }

    it 'schedules a ClusterWaitForIngressIpAddressWorker' do
      expect(ClusterWaitForIngressIpAddressWorker).to have_received(:perform_in)
        .with(Clusters::Applications::Ingress::FETCH_IP_ADDRESS_DELAY, 'ingress', application.id)
    end
  end

  describe '#schedule_status_update' do
    let(:application) { create(:clusters_applications_ingress, :installed) }

    before do
      application.schedule_status_update
    end

    it 'schedules a ClusterWaitForIngressIpAddressWorker' do
      expect(ClusterWaitForIngressIpAddressWorker).to have_received(:perform_async)
        .with('ingress', application.id)
    end

    context 'when the application is not installed' do
      let(:application) { create(:clusters_applications_ingress, :installing) }

      it 'does not schedule a ClusterWaitForIngressIpAddressWorker' do
        expect(ClusterWaitForIngressIpAddressWorker).not_to have_received(:perform_async)
      end
    end

    context 'when there is already an external_ip' do
      let(:application) { create(:clusters_applications_ingress, :installed, external_ip: '111.222.222.111') }

      it 'does not schedule a ClusterWaitForIngressIpAddressWorker' do
        expect(ClusterWaitForIngressIpAddressWorker).not_to have_received(:perform_in)
      end
    end

    context 'when there is already an external_hostname' do
      let(:application) { create(:clusters_applications_ingress, :installed, external_hostname: 'localhost.localdomain') }

      it 'does not schedule a ClusterWaitForIngressIpAddressWorker' do
        expect(ClusterWaitForIngressIpAddressWorker).not_to have_received(:perform_in)
      end
    end
  end

  describe '#install_command' do
    subject { ingress.install_command }

    it { is_expected.to be_an_instance_of(Gitlab::Kubernetes::Helm::V3::InstallCommand) }

    it 'is initialized with ingress arguments' do
      expect(subject.name).to eq('ingress')
      expect(subject.chart).to eq('ingress/nginx-ingress')
      expect(subject.version).to eq('1.40.2')
      expect(subject).to be_rbac
      expect(subject.files).to eq(ingress.files)
    end

    context 'on a non rbac enabled cluster' do
      before do
        ingress.cluster.platform_kubernetes.abac!
      end

      it { is_expected.not_to be_rbac }
    end

    context 'application failed to install previously' do
      let(:ingress) { create(:clusters_applications_ingress, :errored, version: 'nginx') }

      it 'is initialized with the locked version' do
        expect(subject.version).to eq('1.40.2')
      end
    end
  end

  describe '#files' do
    let(:application) { ingress }
    let(:values) { subject[:'values.yaml'] }

    subject { application.files }

    it 'includes ingress valid keys in values' do
      expect(values).to include('image')
      expect(values).to include('repository')
      expect(values).to include('stats')
      expect(values).to include('podAnnotations')
      expect(values).to include('clusterIP')
    end
  end

  describe '#values' do
    subject { ingress }

    context 'when modsecurity_enabled is enabled' do
      before do
        allow(subject).to receive(:modsecurity_enabled).and_return(true)
      end

      it 'includes modsecurity module enablement' do
        expect(subject.values).to include("enable-modsecurity: 'true'")
      end

      it 'includes modsecurity core ruleset enablement set to false' do
        expect(subject.values).to include("enable-owasp-modsecurity-crs: 'false'")
      end

      it 'includes modsecurity snippet with information related to security rules' do
        expect(subject.values).to include("SecRuleEngine DetectionOnly")
        expect(subject.values).to include("Include #{described_class::MODSECURITY_OWASP_RULES_FILE}")
      end

      context 'when modsecurity_mode is set to :blocking' do
        before do
          subject.blocking!
        end

        it 'includes modsecurity snippet with information related to security rules' do
          expect(subject.values).to include("SecRuleEngine On")
          expect(subject.values).to include("Include #{described_class::MODSECURITY_OWASP_RULES_FILE}")
        end
      end

      it 'includes modsecurity.conf content' do
        expect(subject.values).to include('modsecurity.conf')
        # Includes file content from Ingress#modsecurity_config_content
        expect(subject.values).to include('SecAuditLog')

        expect(subject.values).to include('extraVolumes')
        expect(subject.values).to include('extraVolumeMounts')
      end

      it 'includes modsecurity sidecar container' do
        expect(subject.values).to include('modsecurity-log-volume')

        expect(subject.values).to include('extraContainers')
      end

      it 'executes command to tail modsecurity logs with -F option' do
        args = YAML.safe_load(subject.values).dig('controller', 'extraContainers', 0, 'args')

        expect(args).to eq(['/bin/sh', '-c', 'tail -F /var/log/modsec/audit.log'])
      end

      it 'includes livenessProbe for modsecurity sidecar container' do
        probe_config = YAML.safe_load(subject.values).dig('controller', 'extraContainers', 0, 'livenessProbe')

        expect(probe_config).to eq('exec' => { 'command' => ['ls', '/var/log/modsec/audit.log'] })
      end
    end

    context 'when modsecurity_enabled is disabled' do
      before do
        allow(subject).to receive(:modsecurity_enabled).and_return(false)
      end

      it 'excludes modsecurity module enablement' do
        expect(subject.values).not_to include('enable-modsecurity')
      end

      it 'excludes modsecurity core ruleset enablement' do
        expect(subject.values).not_to include('enable-owasp-modsecurity-crs')
      end

      it 'excludes modsecurity.conf content' do
        expect(subject.values).not_to include('modsecurity.conf')
        # Excludes file content from Ingress#modsecurity_config_content
        expect(subject.values).not_to include('SecAuditLog')

        expect(subject.values).not_to include('extraVolumes')
        expect(subject.values).not_to include('extraVolumeMounts')
      end

      it 'excludes modsecurity sidecar container' do
        expect(subject.values).not_to include('modsecurity-log-volume')

        expect(subject.values).not_to include('extraContainers')
      end
    end
  end
end