class AzureBlob::CanonicalizedResource

def initialize(uri, account_name, service_name: nil, url_safe: true)
  # This next line is needed because CanonicalizedResource
  # need to be escaped for auhthorization headers, but not SAS tokens
  path = url_safe ? uri.path : URI::DEFAULT_PARSER.unescape(uri.path)
  resource = "/#{account_name}#{path.empty? ? "/" : path}"
  resource = "/#{service_name}#{resource}" if service_name
  params = CGI.parse(uri.query.to_s)
    .transform_keys(&:downcase)
    .sort
    .map { |param, value| "#{param}:#{value.map(&:strip).sort.join(",")}" }
  @canonicalized_resource = [ resource, *params ].join("\n")
end

def to_s
  @canonicalized_resource
end