class Inspec::Resources::OneGetPackage

def info
  return @info if defined?(@info)
  @info = {}
  @info[:type] = 'oneget'
  @info[:installed] = false
  cmd = inspec.command("Get-Package -Name '#{@package_name}' | ConvertTo-Json")
  # cannot rely on exit code for now, successful command returns exit code 1
  # return nil if cmd.exit_status != 0
  # try to parse json
  begin
    pkgs = JSON.parse(cmd.stdout)
    @info[:installed] = true
    # sometimes we get multiple values
    if pkgs.is_a?(Array)
      # select the first entry
      pkgs = pkgs.first
    end
  rescue JSON::ParserError => _e
    return @info
  end
  @info[:name] = pkgs['Name'] if pkgs.key?('Name')
  @info[:version] = pkgs['Version'] if pkgs.key?('Version')
  @info
end

def initialize(package_name)
  @package_name = package_name
  # verify that this resource is only supported on Windows
  return skip_resource 'The `oneget` resource is not supported on your OS.' if !inspec.os.windows?
end

def installed?
  info[:installed] == true
end

def to_s
  "OneGet Package #{@package_name}"
end

def version
  info[:version]
end