class Lutaml::Xml::Schema::Xsd::NamespaceUriRemapping

def apply(uri)
  uri == from_uri ? to_uri : uri
end

def valid?
  validate.valid?
end

def validate
  errors = []
  from_missing = from_uri.nil? || from_uri.empty?
  to_missing = to_uri.nil? || to_uri.empty?
  if from_missing
    errors << ValidationError.create(
      field: :from_uri,
      message: "Source URI is required",
      constraint: "presence",
    )
  end
  if to_missing
    errors << ValidationError.create(
      field: :to_uri,
      message: "Target URI is required",
      constraint: "presence",
    )
  end
  # Only check equality if both URIs are present
  if !from_missing && !to_missing && from_uri == to_uri
    errors << ValidationError.create(
      field: :to_uri,
      message: "Target URI must be different from source URI",
      value: to_uri,
      constraint: "!= from_uri",
    )
  end
  errors.empty? ? ValidationResult.success : ValidationResult.failure(errors)
end

def validate!
  validate.validate!
end