/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#include "txExpandedName.h"

#include "nsReadableUtils.h"
#include "nsString.h"
#include "txNamespaceMap.h"
#include "txStringUtils.h"
#include "txXMLUtils.h"

nsresult txExpandedName::init(const nsAString& aQName,
                              txNamespaceMap* aResolver, bool aUseDefault) {
  const nsString& qName = PromiseFlatString(aQName);
  const char16_t* colon;
  bool valid = XMLUtils::isValidQName(qName, &colon);
  if (!valid) {
    return NS_ERROR_FAILURE;
  }

  if (colon) {
    RefPtr<nsAtom> prefix = NS_Atomize(Substring(qName.get(), colon));
    int32_t namespaceID = aResolver->lookupNamespace(prefix);
    if (namespaceID == kNameSpaceID_Unknown) return NS_ERROR_FAILURE;
    mNamespaceID = namespaceID;

    const char16_t* end;
    qName.EndReading(end);
    mLocalName = NS_Atomize(Substring(colon + 1, end));
  } else {
    mNamespaceID =
        aUseDefault ? aResolver->lookupNamespace(nullptr) : kNameSpaceID_None;
    mLocalName = NS_Atomize(aQName);
  }
  return NS_OK;
}