class OsEnv

def initialize(env = nil)
  @osenv = env
  @content = nil
  @content = value_for(env) unless env.nil?
end

def split
  # we can't take advantage of `File::PATH_SEPARATOR` as code is
  # evaluated on the host machine
  path_separator = inspec.os.windows? ? ';' : ':'
  # -1 is required to catch cases like dir1::dir2:
  # where we have a trailing :
  @content.nil? ? [] : @content.split(path_separator, -1)
end

def to_s
  if @osenv.nil?
    'Environment variables'
  else
    "Environment variable #{@osenv}"
  end
end

def value_for(env)
  command = if inspec.os.windows?
              "$Env:#{env}"
            else
              'env'
            end
  out = inspec.command(command)
  unless out.exit_status == 0
    skip_resource "Can't read environment variables on #{os[:family]}. "\
      "Tried `#{command}` which returned #{out.exit_status}"
  end
  if inspec.os.windows?
    out.stdout.strip
  else
    params = SimpleConfig.new(out.stdout).params
    params[env]
  end
end