# frozen_string_literal: true

module Gitlab
  module Kubernetes
    module Helm
      module V2
        class BaseCommand
          attr_reader :name, :files

          HELM_VERSION = '2.16.9'

          def initialize(rbac:, name:, files:)
            @rbac = rbac
            @name = name
            @files = files
          end

          def env
            { TILLER_NAMESPACE: namespace }
          end

          def rbac?
            @rbac
          end

          def pod_resource
            pod_service_account_name = rbac? ? service_account_name : nil

            Gitlab::Kubernetes::Helm::Pod.new(self, namespace, service_account_name: pod_service_account_name).generate
          end

          def generate_script
            <<~HEREDOC
              set -xeo pipefail
            HEREDOC
          end

          def pod_name
            "install-#{name}"
          end

          def config_map_resource
            Gitlab::Kubernetes::ConfigMap.new(name, files).generate
          end

          def service_account_resource
            return unless rbac?

            Gitlab::Kubernetes::ServiceAccount.new(service_account_name, namespace).generate
          end

          def cluster_role_binding_resource
            return unless rbac?

            subjects = [{ kind: 'ServiceAccount', name: service_account_name, namespace: namespace }]

            Gitlab::Kubernetes::ClusterRoleBinding.new(
              cluster_role_binding_name,
              cluster_role_name,
              subjects
            ).generate
          end

          def file_names
            files.keys
          end

          private

          def files_dir
            "/data/helm/#{name}/config"
          end

          def namespace
            Gitlab::Kubernetes::Helm::NAMESPACE
          end

          def service_account_name
            Gitlab::Kubernetes::Helm::SERVICE_ACCOUNT
          end

          def cluster_role_binding_name
            Gitlab::Kubernetes::Helm::CLUSTER_ROLE_BINDING
          end

          def cluster_role_name
            Gitlab::Kubernetes::Helm::CLUSTER_ROLE
          end
        end
      end
    end
  end
end