class ChefCLI::ChefRunner

def configure
  Chef::Config.solo_legacy_mode = true
  Chef::Config.cookbook_path = cookbook_path
  Chef::Config.color = true
  Chef::Config.diff_disabled = true
  # If the user has set policyfile configuration in the workstation config
  # file, the underlying chef-client code may enable policyfile mode and
  # then fail because chef-solo doesn't support policyfiles.
  Chef::Config.use_policyfile = false
  Chef::Config.policy_name = nil
  Chef::Config.policy_group = nil
  Chef::Config.deployment_group = nil
  # atomic file operations on Windows require Administrator privileges to be able to read the SACL from a file
  # Using file_staging_uses_destdir(true) will get us inherited permissions indirectly on tempfile creation
  Chef::Config.file_atomic_update = false if Chef::Platform.windows?
  Chef::Config.file_staging_uses_destdir = true # Default in Chef 12+
end

def converge
  configure
  Chef::Runner.new(run_context).converge
rescue Chef::Exceptions::CookbookNotFound => e
  message = "Could not find cookbook(s) to satisfy run list #{run_list.inspect} in #{cookbook_path}"
  raise CookbookNotFound.new(message, e)
rescue => e
  raise ChefConvergeError.new("#{ChefCLI::Dist::INFRA_PRODUCT} failed to converge: #{e} from file #{e.backtrace.first}", e)
end

def doc_formatter
  Chef::Formatters.new(:chefcli_doc, stdout, stderr)
end

def event_dispatcher
  @event_dispatcher ||=
    Chef::EventDispatch::Dispatcher.new.tap do |d|
      d.register(doc_formatter)
    end
end

def initialize(cookbook_path, run_list)
  @cookbook_path = File.expand_path(cookbook_path)
  @run_list = run_list
  @formatter = nil
  @ohai = nil
end

def ohai
  return @ohai if @ohai
  @ohai = Ohai::System.new
  @ohai.all_plugins(%w{platform platform_version})
  @ohai
end

def policy
  return @policy_builder if @policy_builder
  @policy_builder = Chef::PolicyBuilder::Dynamic.new("chef-cli", ohai.data, {}, nil, event_dispatcher)
  @policy_builder.load_node
  @policy_builder.build_node
  @policy_builder.node.run_list(*run_list)
  @policy_builder.expand_run_list
  @policy_builder
end

def run_context
  @run_context ||= policy.setup_run_context
end

def stderr
  $stderr
end

def stdout
  $stdout
end