# frozen_string_literal: true

# Copyright:: 2013-2022 Amazon.com, Inc. or its affiliates. All Rights Reserved.
#
# Licensed under the Apache License, Version 2.0 (the "License"). You may not use this file except in compliance with the
# License. A copy of the License is located at
#
# http://aws.amazon.com/apache2.0/
#
# or in the "LICENSE.txt" file accompanying this file. This file is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES
# OR CONDITIONS OF ANY KIND, express or implied. See the License for the specific language governing permissions and
# limitations under the License.

unified_mode true
default_action :setup

property :spack_root, String, required: false,
         default: node['cluster']['spack_shared_dir']

action :install_spack do
  return if on_docker?

  package_repos 'update package repos'

  install_packages 'install spack dependencies' do
    packages dependencies
    action :install
  end

  # Get Spack tarball
  spack_version = node['cluster']['spack']['version']
  spack_tar_name = "spack-#{spack_version}"
  spack_tarball = "#{node['cluster']['sources_dir']}/#{spack_tar_name}.tar.gz"
  spack_url = "https://github.com/spack/spack/archive/refs/tags/v#{spack_version}.tar.gz"
  spack_sha256 = node['cluster']['spack']['sha256']
  remote_file spack_tarball do
    source spack_url
    user 'root'
    group 'root'
    mode '0644'
    retries 3
    retry_delay 5
    checksum spack_sha256
    action :create_if_missing
  end

  directory new_resource.spack_root do
    user 'root'
    group 'root'
    mode '0755'
    recursive true
  end

  bash 'Extract spack' do
    user 'root'
    group 'root'
    code <<-SCRIPT
    set -e
    tar -xf #{spack_tarball} --directory #{new_resource.spack_root} --strip-components 1
    SCRIPT
  end

  template '/etc/profile.d/spack.sh' do
    cookbook 'aws-parallelcluster-environment'
    source 'spack/spack.sh.erb'
    owner 'root'
    group 'root'
    mode  '0755'
    variables(spack_root: new_resource.spack_root)
  end

  spack = "#{new_resource.spack_root}/bin/spack"
  spack_configs_dir = "#{new_resource.spack_root}/etc/spack"

  cookbook_file "#{spack_configs_dir}/modules.yaml" do
    cookbook 'aws-parallelcluster-environment'
    source 'spack/modules.yaml'
    owner 'root'
    group 'root'
    mode '0755'
  end

  bash 'setup Spack' do
    user 'root'
    group 'root'
    code <<-SPACK
      source #{new_resource.spack_root}/share/spack/setup-env.sh

      # Generate Spack user's compilers.yaml config with preinstalled compilers
      #{spack} compiler add --scope site

      # Add external packages to Spack user's packages.yaml config
      #{spack} external find --scope site

      # Remove all autotools/buildtools packages. These versions need to be managed by spack or it will
      # eventually end up in a version mismatch (e.g. when compiling gmp).
      #{spack} tags build-tools | xargs -I {} #{spack} config --scope site rm packages:{}
    SPACK
  end

  node.default['cluster']['spack']['root'] = new_resource.spack_root
  node_attributes 'dump node attributes'
end

# Binaries are currently only available for alinux. However, there is an issue verifying binaries with alinux due to gpg2.
# This action should be included under OS specific setup actions when binaries are supported.
action :add_binaries do
  unless spack_installed?
    Chef::Log.warn 'Spack root directory not found, ensure that Spack is installed before adding binaries'
    return
  end

  spack = "#{new_resource.spack_root}/bin/spack"

  bash 'add binaries' do
    user 'root'
    group 'root'
    code <<-SPACK
      [ -z "${CI_PROJECT_DIR}" ] && #{spack} mirror add --scope site "aws-pcluster" "https://binaries.spack.io/develop/aws-pcluster-$(spack arch -t | sed -e 's?_avx512??1')" || true
      #{spack} buildcache keys --install --trust
    SPACK
  end
end

action :configure do
  return if on_docker?

  case node['cluster']['node_type']
  when 'HeadNode'

    # Find libfabric version to be used in package configs
    libfabric_version = nil
    ::File.open(libfabric_path).each do |line|
      if line.include?('Version:')
        libfabric_version = line.split[1].strip
        break
      end
    end

    spack = "#{new_resource.spack_root}/bin/spack"
    spack_configs_dir = "#{new_resource.spack_root}/etc/spack"

    arch_target = `#{spack} arch -t`.strip
    Chef::Log.info "The processor family is #{arch_target}"
    # Pull architecture dependent package config
    template "#{spack_configs_dir}/packages.yaml" do
      cookbook 'aws-parallelcluster-environment'
      source "spack/packages-#{arch_target}.yaml.erb"
      owner 'root'
      group 'root'
      variables(libfabric_version: libfabric_version)
      only_if { run_context.has_template_in_cookbook?('aws-parallelcluster-environment', "spack/packages-#{arch_target}.yaml.erb") && spack_installed? }
    end

    node.default['cluster']['libfabric_version'] = libfabric_version
    node_attributes 'dump node attributes'

  end
end

action_class do
  def spack_installed?
    ::Dir.exist?(new_resource.spack_root)
  end
end